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Attempting to overclock EVGA GTX 780 Classified

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  • Overclocking
  • EVGA
  • Intel i7
  • Gigabyte
  • Gtx
Last response: in Overclocking
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March 9, 2014 3:59:07 PM

Hi All,

First of all, here are my specs:

Gigabyte z87x-ud4h
Core i7 4770k w/ CM Hyper 12 Evo
GSkill Trident X Series 16GB (DDR3 2400)
Silverstone 1200W PSU
CM Haf X case
Acer 24" 1080P monitor
EVGA GTX 780 Classified w/ stock ACX Cooler (x1) - latest drivers installed
**NOTE about graphics card: I have the reported, horrid "grinding" sound at certain fan speeds. I have reported this to EVGA via email, and told them I may be reaching out to them in the future if it does not resolve itself...my starting fan speed (see below) setting was influenced by this sound, as it cannot be heard when it is running ~55%

Windows 7 Ultimate 64-bit (up to date)
Intel 520 240GB SSD/2 WD storage drives
Asus Xonar D1 sound card (PCI version)

This is the first time I am attempting to overclock ANYTHING (I guess you could say I'm a bit of a sissy in that regard...

Regardless, I've done weeks of research prior to attempting this, and I spent the better part of the weekend...I wanted to post my results thus far, get some feedback, and see if there is anything that I can be doing differently.

I'm using 3DMark 11 (Advanced) for benchmarking/testing, and I have the latest PrecisionX software installed (first time using it was this weekend). I do NOT want to change voltage if at all possible, and my desired result would be to have an effective overclock without having to do so (kind of an oxymoron I guess...).

First thing I did was take successful clocks from another thread (+125 core,+200 memory), and ran Extreme test in 3DMark 11. Completed, but saw some black artifacts (and my 3DMark score jumped 500+ points). Cool! Figured I would then keep these settings (note I have not changed fan settings at this point) and run my Batman Arkham City Benchmark (all settings maxed, including Physx, with the exception of Direct 11 being disabled). As soon as the benchmark started, black screen. Darn...I knew it would not be that easy.

Set clocks back to +0 in PrecisionX, ran the BAC benchmark again, and it completed. Now I'm on my way to finding my stable core/mem clocks.

At this point I ran a few tests at stock speeds with a custom fan profile (55% until 55 degrees, maxing out the fan at 75 degrees). Ran a few more tests and continued.

Core clock:
I'll note that PrecisionX was reading my stock (I'm assuming, boosted) clock during benchmarks, prior to tweaking, was 1124mhz (spec is 1046 boost, not sure if this is relevant, but I figured I would list this info).

Short story: started with an offset of +75 and worked my way up to 110...at +110 (reported clock was 1228mhz) I saw minor black artifacts. Dropped down to 100mhz where I saw no artifacts (I *thought* I saw artifacts at +105, but I had a bit of a hard time distinguishing between screen tearing and artifacts at this point). Tested with +100 core in BAC benchmark (ran 1x), finished with no crashes. I should mention with my custom fan profile, the GPU temp never reached > 64 degrees (according to PrecisionX). Cool, on to memory (after setting my core clock back to +0)

Memory clock:
Started with an offset of +100 (reported as 3105mhz in the OSD). Worked my way up to +550/3557mhz (I was a bit shocked...) and 3DMark 11 completed the benchmark with no artifacts. I felt that this was plenty high, and instead of trying to push it further, I wanted to continue my testing. Ran BAC benchmark, passed, no crashing. Nice, now to test with both core and memory overclocked.


Still using my custom fan profile, I kept memory clock at +550, and set core to +100. Ran 3DMark 11 (32-bit, so I could use the OSD), no crashes, no artifacts, temp maxed at 66 degrees. Ran 3DMark 11 64-bit, and my score was X5558 (from stock ~X5100). Sweet, this seems good so far...

Ran BAC benchmark using these settings. Crash before it started. Damn.
Decreased memory clock to +500, crashed. Decreased again to +400, crashed. Restarted PC.
Set all defaults in PrecisionX. Ran BAC benchmark, all is well.
Set core clock to +100, memory to +250. BAC bench crashed. Starting to get antsy.
Set ONLY core clock to +100 (leaving memory at default). Ran BAC benchmark CRASH.

Lowered core clock to +95, ran BAC bench, passed. Ok, so for good measure, and to eliminate the possibility that the first time it completed without crashing was a fluke, ran the BAC bench again (with just core clock +95). CRASH CRASH CRASH!

I gave up at this point (it is now 6:30PM on Sunday, and I've spent most of my time playing with this during the weekend, and the wife feels neglected)

Now I know not all GPUs are created equal (this is reality). But I'm baffled by 3DMark 11, which I thought would stress the card pretty good, passed the benches fine, but my BAC bench is wetting the bed (I have not actually tried playing the game with any o/c settings).

So I would much appreciate any feedback (anyone with similar experiences? Am I doing something incorrectly? Am I being a whiney brat?). I will certainly pick this back up when time allows (probably during the week at some point). I'll list some questions below to "compliment" my dictionary of a post (my apologies, but I wanted to list all possible relevant info, and show that I've done my due diligence prior to posting).

1. Without upping the juice to the card (adding voltage), what results for a stable clock may be expected (again, knowing it's the luck of the draw, I know there is no black/white answer here)?
2. Batman is currently the only game I have installed, and I know it is pretty hard on video cards (ie. DX11 issues, etc). Should I take these bench crashes with a grain of salt, or should I assume this means my config is legitimately unstable?
3. As mentioned above, my card (purchased in October, not put to use for the first time until end of November-ish) suffers from the nasty grinding noise others have reported around the Interwebs (only at certain speeds). Should I take this opportunity to contact EVGA to get a "new", replacement card (I declined initially because my card was brand new, and EVGA would be sending me a re-purposed card...I did not like that idea at the time)? Maybe the replacement will have better luck with overclocks?

*just some add'l information that is not necessarily important or directly relevant to the rest of my post*

I want to get this thing running as quickly as possible as I plan on upgrading my monitor in the near future (I'm looking at the Asus 27"/1440p/G Sync display). Also, getting some experience with overclocking, I may look at my CPU next.

Thanks very much for any guidance and again I apologize for the super long post, but I wanted to provide everything possible.

Thanks!

More about : attempting overclock evga gtx 780 classified

a b K Overclocking
March 9, 2014 4:40:09 PM

if you dont add voltage, your classy is running at 1.150v on the core. thats proabably good for 1200mhz plus or minus. and just so you know, you will have no problems maxing out the voltage slider in precision. i prefer msi afterburner as it has more features and can be modded but in your case precision is fine. dont worry about adding voltage, the highest setting the slider will allow is 1.212v core and thats nothing to a classified gk110.

if you want to get a skynet custom bios you can unlock 1.35v core, disable boost altogether, and allow a power target of 200%, up from the normal 115%. open up your case and switch the bios selector over to the ln2 bios to unlock the stock 115% power target, and that bios would be the one you would want to flash if you decide you want to.

for my classified ive benched at 1.28v core at 1375mhz and 1.70v memory at 1750mhz. but my daily overclock for gaming in afterburner is 1.212v core for 1300mhz core and 1600mhz memory.
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March 9, 2014 5:13:12 PM

nikoli707 said:
if you dont add voltage, your classy is running at 1.150v on the core. thats proabably good for 1200mhz plus or minus. and just so you know, you will have no problems maxing out the voltage slider in precision. i prefer msi afterburner as it has more features and can be modded but in your case precision is fine. dont worry about adding voltage, the highest setting the slider will allow is 1.212v core and thats nothing to a classified gk110.

if you want to get a skynet custom bios you can unlock 1.35v core, disable boost altogether, and allow a power target of 200%, up from the normal 115%. open up your case and switch the bios selector over to the ln2 bios to unlock the stock 115% power target, and that bios would be the one you would want to flash if you decide you want to.

for my classified ive benched at 1.28v core at 1375mhz and 1.70v memory at 1750mhz. but my daily overclock for gaming in afterburner is 1.212v core for 1300mhz core and 1600mhz memory.


thank you for the super quick response! so you're saying the first thing i should have done is maxed out the target power slider, and the voltage increase it provides is so minimal I should not be concerned?

what about the results I saw between benching on 3dmark and arkham city? think this may be attributed to leaving the target power at 100%?

and I'm still curious about others that have had success with upping clocks without changing anything power related... which is why I'm curious whether or not I should rma my card for the super annoying fan noise issue.

thanks again ( sorry for improper punctuation, etc, now typing from my phone).
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a b K Overclocking
March 9, 2014 10:16:46 PM

you dont have to max out the power target... only start moving it up once your card is throttling due to hitting the 100% mark. precision and afterburner have the hardware monitor and if your gaming/benching whatever.... look and see if the line for the core clock is holding steady at the clocks you have entered. if not ]and its a jagged line then your either hitting the temperature limit, 79c if you haven't changed it, or your hitting the 100% power target causing the card to throttle its clocks. move the power target up 3% and retry until your holding steady.

voltage isn't whats going to hurt the card, heat is. on the classified, you will hit a vrm temp limit also of 85c that you do not want to go over.

if the fan is making a strange noise, i would rma it. evga has the best warranty in the gpu business and its likely they will do it no questions.

here as all the fun stuff for the classified series.... at the bottom of the first post is the skynet custom bios's and the classified voltage tool. you will need to know your stock bios so you can get the right bios if you choose.
http://www.overclock.net/t/1411500/official-evga-classi...

here is the general nvidia 780 info, most notably occamrazor's gk110 overclock guide. but dont pay attention to the voltmod guide in it or the 1.212v limit... you have a classified and access to the classified voltage tool that works with the chil8318 voltage controller only found in classifieds.
http://www.overclock.net/t/1393791/official-nvidia-gtx-...
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March 10, 2014 4:21:58 AM

thanks again...I did some reading last night and have a bit of an understanding of the power target setting.

sounds like I need to add power to osd for the monitoring tool. I have no idea what it's hitting during my tests. will try this tonight.

my core clock is not dropping st all during benches, and my temps are def not am issue (66 max in 3dmark tops, 50 or so in batman test).
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a b K Overclocking
March 10, 2014 1:53:43 PM

the classified has slightly larger fans than the regular acx cooler. you have a real nice case, power supply, basically everything in your rig is top notch. I've been running battlefield 4 multiplayer maxed out running 1300mhz@1.212v core and i sit at 79-80c. although again i have a skynet custom bios flashed to the ln2 side of the bios and I'm also running at 1440p. long gaming in crysis 3, ac4, tomb raider, metro ll, bf4 64man multi… they should all get the rig working hard and get temps steady after about a half hour of game play. you could try furmark/kombuster/occt but they put an unrealistic load on a gpu that no game or benchmark can mimic… some gpu companies even recommend not using furmark as a stress test.
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March 10, 2014 5:37:51 PM

Alright...out of the gate I set my clock offset to +100, set my custom fan profile, and I was able to run 3DMark 11 (32-bit to check check power/temp/clock speed) no problems (temp never went above 60, power never went above 85%).

Ran two Arkham City benchmarks and everything was fine (temp stayed in the 40's, and I don't think power exceeded 50 or 55%).
Set memory clock to +200 (keeping gpu clock to +100), ran the BAC benchmark again, and it crashed halfway through:
"Display driver nvlddmkm stopped responding and has successfully recovered." is what I see in Event Viewer.

Restarted, set gpu to +100 and memory to +200, target power to +103, and the benchmark would not even start before the black screen. Yet, I've still not had any issues in 3DMark 11...I'm starting to think Arkham City is the problem (but I have not found anyone with similar problems online). I will try one of the other bench programs recommended (I'll pass on Furmark...I read bad things about that yesterday) and see if I get any crashing/how far I can push my card.

Mike

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a b K Overclocking
March 10, 2014 6:45:14 PM

dont overclock your memory at all. just like overclocking a cpu, you want to find what your max core clock is at a certain voltage without any other things interfering. as far as gaming on a single monitor, even 1440/1600p, the stock 780 memory clocks running on a 384bit bus are more than fine and you will never see a performance gain from memory. in benchmarks, possibly 3dmark, and i know for sure in unigine valley, memory overclocks can definitely increase a "score". but its just a score and its synthetic to a certain degree at the very least.

if your not giving your card any more voltage on the core and your only hitting 60 something C, you have a lot of headroom left in your card. again, voltage to a certain degree will not hurt your card, heat kills. 1.212v seems to be the agreed upon max voltage for reference gk110 equipped cards. we have classifieds which are specifically built with exotic power phases and dramatically improved chip and vrm cooling. you should be running at a stock of 1.150 so going up to 1.212v isn't that huge of a difference. ive benched my card for 3dmark and unigine valley/heaven at 1.275v with constant fan speed of 80% and 1375 core 1700 memory which equates to +329 core and +396 memory and only hit 83c.

i wouldnt run that all day gaming and the 80% fan speed is definitely noticable. but im fine with no crashes anywhere at 1.212v and 1300/1600. but remember i am using a skynet custom bios.

from what i know, evga is the best, they have the best customer service, best warranty, and in the classifieds case, the best card period. normally flashing a bios and adding a waterblock is a warranty void. but other there on overclock.net, many have reported their rma/warranty cases where they used flashed custom bios's(on the ln2 bios switch) and ran water blocks, run 1.35v on the core and killed their card and it seems the case is as long as you have an original bios on the card, the 1st of the 2, and you put the stock acx cooler back on the card, they will honor the warranty. evga is THAT confident of their product. that said, if your not comfortable doing it, dont. but at the very least, if you slide the voltage slider on precision over as far as it will go, it will definitely not void your warranty and you have, by far, the best gtx780 ever made to handle a the stock level 1.212v.
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March 10, 2014 7:03:18 PM

nikoli707 said:
dont overclock your memory at all. just like overclocking a cpu, you want to find what your max core clock is at a certain voltage without any other things interfering. as far as gaming on a single monitor, even 1440/1600p, the stock 780 memory clocks running on a 384bit bus are more than fine and you will never see a performance gain from memory. in benchmarks, possibly 3dmark, and i know for sure in unigine valley, memory overclocks can definitely increase a "score". but its just a score and its synthetic to a certain degree at the very least.

if your not giving your card any more voltage on the core and your only hitting 60 something C, you have a lot of headroom left in your card. again, voltage to a certain degree will not hurt your card, heat kills. 1.212v seems to be the agreed upon max voltage for reference gk110 equipped cards. we have classifieds which are specifically built with exotic power phases and dramatically improved chip and vrm cooling. you should be running at a stock of 1.150 so going up to 1.212v isn't that huge of a difference. ive benched my card for 3dmark and unigine valley/heaven at 1.275v with constant fan speed of 80% and 1375 core 1700 memory which equates to +329 core and +396 memory and only hit 83c.

i wouldnt run that all day gaming and the 80% fan speed is definitely noticable. but im fine with no crashes anywhere at 1.212v and 1300/1600. but remember i am using a skynet custom bios.

from what i know, evga is the best, they have the best customer service, best warranty, and in the classifieds case, the best card period. normally flashing a bios and adding a waterblock is a warranty void. but other there on overclock.net, many have reported their rma/warranty cases where they used flashed custom bios's(on the ln2 bios switch) and ran water blocks, run 1.35v on the core and killed their card and it seems the case is as long as you have an original bios on the card, the 1st of the 2, and you put the stock acx cooler back on the card, they will honor the warranty. evga is THAT confident of their product. that said, if your not comfortable doing it, dont. but at the very least, if you slide the voltage slider on precision over as far as it will go, it will definitely not void your warranty and you have, by far, the best gtx780 ever made to handle a the stock level 1.212v.


Thanks again for all of your help, I really appreciate your detailed responses :) 

I have two more quick questions:

1. When you are referring to sliding the voltage slider all the way...you are talking about the actual Voltage setting in PrecisionX, NOT Target Power, correct?
2. I was just doing some research on other benchmark/stress test apps and read that Unigine Heaven is pretty good (and unforgiving...should expose unstable overclocks more easily than ie. 3DMark 11). How do you like Heaven? I'm thinking about trying this one tomorrow...I think I need another opinion (aside from 3DMark which seems to be fine, and Arkham City, which may be erroneously crashing my driver :)  )

I would rather not flash the bios (this would be a last resort type of thing) for now...let's see what Heaven tells me :) 
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a b K Overclocking
March 11, 2014 6:55:29 AM

yes, im talking about the voltage setting, not the power target.

unigine heaven/valley are about the same thing. heaven has been around for a bit while valley is fairly new. i like them both. if you leave either one going for about a 30 hour, they will expose stability problems by either crashing or major artifacting.

you should see how far you can get without flashing. again, if you take the side panel off your case, near the power connectors on the classy, you will see the bios switch. the ln2 side will allow up to 115% power target, and many report having more stable overclocks on the ln2 bios. but again, still only raise the power target when your clocks are throttling.
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March 11, 2014 9:09:14 AM

ok...I will try heaven this evening with the same offsets that passed in 3dmark... depending on my results, I will max out the voltage and see if that yields anything better.

Update 8:15 PM
Installed Heaven (I enjoy watching this much more than 3DMark :)  ), started with a +100 gpu and +200 memory (I know you said not to worry about memory, but I wanted to see if there were any issues) and the benchmark passed with no issues (all settings maxed). Power never exceeded 80%, temp never exceeded 68 degrees...but one thing I noticed, was the voltage. I added this to my OSD...it is reading 1.162 (not 1.150 as mentioned)...even with no offsets. Is this normal?

I'm going to see what I can max my gpu clock at now in Heaven and report back...but I'm wondering if my previous issues are with my voltage already being > what is expected?
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a b K Overclocking
March 11, 2014 5:24:08 PM

1.162v is fine, i know reference cards are at 1.150v. your going to hit a wall where you will need more voltage though. 68c is more than fine though. its up to you if you want to add more though. most would recommend keep going until you get to just under 80c on the stock fan profile. after that you can adjust the fan profile to whatever point you feel is a good balance between noise and heat and find a good overclock.

do you have gpuz? you should download that and it will read your actual core and memory clocks. it also can tell you your ascics rating and the type of memory you have, hynix or samsung.
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March 11, 2014 5:50:08 PM

Good evening Nikoli - last update for the night...set memory clock to +0, gpu to +110 for test 1 and +120 for test 2...again power never exceeded 80%, and 68 degrees was the highest temp I saw. At +110 I saw just a few artifacts in some of the scenes really had to look hard), and at +120 I saw more noticeable artifacts. Tomorrow I will try bumping up the voltage to see if I can get my gpu clock higher (maybe add .05 to get it from 1.162 to 1.212 since this seems like a reasonable next step. I'm going to assume at this point Batman is not playing nice with my overclocks...and if for some reason the game crashes while I'm playing it (no more benchmarks here!) and my card is o/c'd, I can always set to defaults.

I may have GPUZ locally downloaded (I have a ton of software archived), if not I could download it and play around with it.
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March 13, 2014 4:47:24 PM

Increased voltage tonight, I'm a little disappointed with my results...here's what I got:

Test 1: voltage +50 (1.2), gpu +115 (1254mhz), ran Heaven at at highest settings...stable (no artifacts or crashing) with power not exceeding 88%, and temp not exceeding 69 degrees.

Test 2: voltage +50 (1.2), gpu +125 (1267mhz), ran Heaven at highest settings - fairly noticeable artifacting, but again power did not exceed 88% and temps didn't go higher than 69.

Test 3: voltage +63 (voltage still showed 1.2??), gpu +125: same results as Test 2 (artifacting was slightly worse for some reason, even though voltage was maxed in precision x).

I downloaded GPU-Z...my ASIC Quality is 69.1%, and my memory is Samsung.

(by the way, just for giggles...at +50 voltage, +100 gpu, and +200 memory, I tried running the Arkham City benchmark, but it still crashed even with the increased voltage).

What are your thoughts? Maybe I don't have a good overclocker? I really want to get to 1300mhz cpu (just because), but don't want to have to flash the bios or anything (and speaking of, I'm not even sure which bios is in use...I should probably crack my case open and check). Results so far seem poor?

Thanks,

Mike
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a b K Overclocking
March 13, 2014 8:45:59 PM

switch over to the ln2 bios setting... you should get better results. why batman is crashing i dunno. i have arkham city but ive never ran the benchmark. maybe i will give it a try.
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March 14, 2014 4:02:21 AM

nikoli707 said:
switch over to the ln2 bios setting... you should get better results. why batman is crashing i dunno. i have arkham city but ive never ran the benchmark. maybe i will give it a try.


ok I will switch over to the other bios and try again this weekend
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March 16, 2014 3:20:49 PM

switched over to ln2 bios...unfortunately, same exactly results. tried increasing voltage to +63 (OSD reported 1.200v) and +125 gpu, ran heaven, and saw artifacting. I even, for fun, tried to increase the power target up to 115% just to see if it would make a difference...and nada.

Any other ideas to successfully increase my clock (before going down the BIOS flash route)? My temps do not seem to be an issue at all...and so far, it would appear, without having to increase my voltage, I could get in the neighborhood of +100 gpu, and +550 (or more) memory. I'm wondering if at this point that's what I should do, but I would really like to get more out of my card :) 
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March 17, 2014 12:09:52 AM

Hey you two!

I've got a GTX 780 Classy myself, however, seeing as there are still discrepancies, I'll have to wait for my 4770k and Maximus VI Hero mobo to come in to be on an equal level field since I'm using an AMD FX 8150 and Crosshair V Formula. Once I get the new processor, I'll do some overclocking and have some comparisons to make. So far, I've only lightly OC'd it to an extra 140Mhz core clock and 425Mhz memory clock with a power limit of 115% on the LN2 bios. I should hopefully get everything in by Friday so I'll definitely work to get stuff ready then to help you make comparisons with your overclocking, mbard. Just reading this thread alone has given me invaluable information.

Till then, best of luck!
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March 17, 2014 6:13:34 AM

wow...+140 core clock with no additional voltage? I have not had the need to increase my power target since I'm not going higher than 90 percent. right now it looks like my core clock maxes at 100 or 105 without voltage, and 115 with +63 voltage on ln2 stock bios. I'm thinking my card just ocs like crap.
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March 17, 2014 9:09:14 AM

mbard said:
wow...+140 core clock with no additional voltage? I have not had the need to increase my power target since I'm not going higher than 90 percent. right now it looks like my core clock maxes at 100 or 105 without voltage, and 115 with +63 voltage on ln2 stock bios. I'm thinking my card just ocs like crap.




Yeah it was just something quick I did. Didn't really try to push to see what all I can get out of without upping the voltage since I figured I would be getting a new processor anyways, might as well wait for that instead. I would try calling EVGA for advice because that does seem REALLY bad. Not to mention that I have Hynix memory on mine where as you have Samsung so you should REALLY be kicking some ass with your card.

So far, with my settings, it says that my Asic Quality is 77.5%. Not sure what that equates to in regards to good or bad.
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March 17, 2014 9:19:25 AM

just curious.

1. what is your reported core frequency when benchmarking with +140? afterburner appears to be reporting body of only 1186.
2. do you see any artifacts when benchmarking atthat clock?
3. are you using a custom bios?
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March 17, 2014 9:28:21 AM

mbard said:
just curious.

1. what is your reported core frequency when benchmarking with +140? afterburner appears to be reporting body of only 1186.
2. do you see any artifacts when benchmarking atthat clock?
3. are you using a custom bios?


1. Not sure what you mean? My core frequency is what it's set at whenever I'm playing or benchmarking. I don't have it set to underclock at idle at the moment so it stays at 1186 when boosted.
2. No, not at all. I've used Unigine Heaven and GPU Tool and neither produced any artifacts for fifteen minutes each.
3. I'm using the LN2 Bios Switch. Haven't applied a custom bios cause I've considered it pointless for now since I am not going to put it on water for another month or two at the very least.

I've got off tomorrow so I'll toy around with it and see what I can get as a stable core clock frequency and leave the memory clock alone.
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March 17, 2014 9:46:13 AM

Ok, I ask because with+0 on core clock, my boost is 1124mhz...im getting somewhere around 1224mhz or so with + 100 core... maybe my card has a faster stock speed, and that's what you can add a higher frequency?
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March 17, 2014 10:07:27 AM

mbard said:
Ok, I ask because with+0 on core clock, my boost is 1124mhz...im getting somewhere around 1224mhz or so with + 100 core... maybe my card has a faster stock speed, and that's what you can add a higher frequency?


That's weird. You shouldn't be getting anything like that at stock. Stock is "supposed" to be 993 core clock, 1046 mhz boost and 1502 memory clock. Can you take a picture of what GPU-Z says for you?
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March 17, 2014 10:24:58 AM

Will do tonight
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March 17, 2014 3:50:09 PM

Took two screenshots...one of GPU-Z (where it does show boost clock @ 1046mhz), and a second one that shows that my core clock was running @ 1124 in Precision X after I killed my benchmark:



I also see that my "stock" voltage is 1.162 during my benchmark. This is why I asked what yours was reporting at during gaming/benching...

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a b K Overclocking
March 17, 2014 4:31:26 PM

not sure why precison is reporting 1124mhz, gpuz is reporting the correct clocks. so if you run your benchmarks at stock with nothing changed you still get crashes?
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March 17, 2014 6:28:27 PM

mbard said:
Took two screenshots...one of GPU-Z (where it does show boost clock @ 1046mhz), and a second one that shows that my core clock was running @ 1124 in Precision X after I killed my benchmark:



I also see that my "stock" voltage is 1.162 during my benchmark. This is why I asked what yours was reporting at during gaming/benching...



Okay. I just got home. If you'd like, I can Skype/Steam message you if you happen to be on and we can discuss this to see what's going on. I'm going to start trying to push my GPU in a bit.
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March 17, 2014 6:33:03 PM

nope, no crashes at all at stock. the only crashesI've screen are when I oc and run batman bench. never in 3dmark or heaven stock or oc, or batman on stock.should I ditch precision and try after burner? Can I still set custom fan profile? Just fyi... the sw that provides the osd also shows the same frequency as precision.
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March 17, 2014 6:41:03 PM

actually just got to bed... and my cat is laying on my chest... don't think I will be moving any time soon :-) thank you though... I'm going to continue to research and see if I can come up with anything. I am seriously considering an rma at this point, but I'm concerned that I will get a card that is even worse...
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March 17, 2014 6:44:50 PM

mbard said:
actually just got to bed... and my cat is laying on my chest... don't think I will be moving any time soon :-) thank you though... I'm going to continue to research and see if I can come up with anything. I am seriously considering an rma at this point, but I'm concerned that I will get a card that is even worse...


Don't sweat it mate! I'm going to tinker with mine tonight and see what I get with stock voltages and maxed voltages. That said, I'm pretty sure that if RMA it, EVGA will gladly take it no problem.Their reputation precedes them
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March 17, 2014 7:02:10 PM

just a quick note about my 1124mhz "stock" boost speeds...I did a quick google and others have seen the same results out of the box with the classified, but again this is what my osd.reports during benches, etc.
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March 17, 2014 7:08:00 PM

mbard said:
just a quick note about my 1124mhz "stock" boost speeds...I did a quick google and others have seen the same results out of the box with the classified, but again this is what my osd.reports during benches, etc.


Which benches are you using? I've got 3DMark and Unigine Heaven.
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March 17, 2014 7:18:26 PM

Ludamister said:
mbard said:
just a quick note about my 1124mhz "stock" boost speeds...I did a quick google and others have seen the same results out of the box with the classified, but again this is what my osd.reports during benches, etc.


Which benches are you using? I've got 3DMark and Unigine Heaven.


heaven and 3dmark11 advanced. ive tried my arkham city bench but likes to crash when my card is oc'd.
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March 17, 2014 9:28:31 PM

I decided to flash my LN2 Bios with the Skynet v4 revision bios and it feels a lot more stable plus it allows for far higher voltages, far higher power targets (300%?!) and it's base core/memory clock is running stable. I'm going to start from here and edge it out.



That's literally an almost 26% core clock increase and an almost 14% memory clock increase. Ran Firestrike and my score increased by almost 6%. Going to toy with this some more.
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March 18, 2014 4:08:56 AM

how much more were you able to get out of your card after bios flash ( what ess the highest you were able to get your card on stock bios)? have you increased voltage yet?
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March 18, 2014 6:32:23 AM

I just found a reply in my email that I don't see on here.. it mentions that without extra voltage, you were topping out at+90 on core, but adding +63 on voltage, you were able to gain another 50mhz? I gain maybe 10 or 15mhz by adding that much voltage on core oc, tops ( from +100 or +105 to +115 after setting voltage to +50 or +63). barely seems worth the extra voltage. maybe I will try to reinstall all software ( drivers, precision x, etc) to see if I gain anything extra, but it does not seem promising...
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March 18, 2014 9:04:09 AM

mbard said:
I just found a reply in my email that I don't see on here.. it mentions that without extra voltage, you were topping out at+90 on core, but adding +63 on voltage, you were able to gain another 50mhz? I gain maybe 10 or 15mhz by adding that much voltage on core oc, tops ( from +100 or +105 to +115 after setting voltage to +50 or +63). barely seems worth the extra voltage. maybe I will try to reinstall all software ( drivers, precision x, etc) to see if I gain anything extra, but it does not seem promising...


Well, it was strange cause without the flashed bios, it was struggling to run those clock speeds and I noticed some artifacts of black flickers in a space here and there when I went higher than those clocks. I tried on both 5760x1080 and 1080p runs of Heaven to make sure it was stressed. However, I flashed the bios afterwards and it goes smooth as butter. I believe the voltage then was running at 1.137 and I never touched anything. I did download the Classified Voltage Controller. Whenever I changed the voltage there, I could definitely notice the difference but Afterburner wouldn't reflect the changes of the voltage on their program. So now I'm using two programs, CVC for the voltages and Afterburner for the clocking. I edited my fan curve and had it setup so that it hits max fan speed at 80 degrees but it never got there during Firestrike.
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March 18, 2014 9:58:20 AM

maybe precision is not really increasing my voltage as expected...I can try cvc when I have some type. hopefully precision and cvc won't stepon each other (ie increase voltage in c cvc, but not in precision, so precision sets back to defaults)... this is becoming quite the project!
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March 18, 2014 10:04:38 AM

mbard said:
maybe precision is not really increasing my voltage as expected...I can try cvc when I have some type. hopefully precision and cvc won't stepon each other (ie increase voltage in c cvc, but not in precision, so precision sets back to defaults)... this is becoming quite the project!


No kidding! I'm trying to push mine above 1300mhz core clock! I left the memory clock at +425 and have pushed the core +200 and upped the voltage to 1.225. In Heaven, I didn't even top 78 degrees but I think I might have seen an artifact or two so I'm going to up it more to make sure it benches fine without any visible artifacts. Then I'll run Firestrike. I really need to buy 3DMark so I can just get Firestrike Extreme and just run that instead of having to run ALL OF THE TESTS at once. It's so depressing having to wait that long. lol



What's your ASIC quality btw? Mine is 77.5. Not bad but not great either. I'm hoping my second card doesn't come any lower or I'll probably sell that and buy another one.
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March 18, 2014 4:37:14 PM

yeah something I'd not right. even when my voltage is" maxed" in precision, my temps have never broken 70 (69 is the highest I've seen I believe). my asics is 69.1... but I read you cannot bar oc luck on this... it's a bunch of bs.
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March 18, 2014 4:48:50 PM

mbard said:
yeah something I'd not right. even when my voltage is" maxed" in precision, my temps have never broken 70 (69 is the highest I've seen I believe). my asics is 69.1... but I read you cannot bar oc luck on this... it's a bunch of bs.


Not sure what you meant by that last line "but I read you cannot bar oc luck on this".

As far as your thermal limits, you should be able to hit 80 no problem on stock. They're designed to boost until they hit that limit too if there's lots of headroom. I'd highly suggest talking to EVGA at this point and getting their advice. Then, if the representative agrees that it's not adding up or it seems faulty, you just got their blessing for a RMA.
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a b K Overclocking
March 18, 2014 5:02:05 PM

ditch precision then, run afterburner beta 18. personally for my benches i was using the voltage tool you see there above on luda's screen. monitor programs will not report the correct voltage from the controller app but its very well verified.
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March 18, 2014 5:04:41 PM

nikoli707 said:
ditch precision then, run afterburner beta 18. personally for my benches i was using the voltage tool you see there above on luda's screen. monitor programs will not report the correct voltage from the controller app but its very well verified.


Oh man. Please use the current beta 18. Do NOT use that stable version. I had so much black flickering. I don't even know how the fuck they could call that stable. Pardon my language but that crap was pissing me off so much.
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March 18, 2014 6:36:25 PM

thanks guys...
luda-sorry... typing from my phone. I meant you cannot BASE your oc on the asics reading ( or so I read).

nikoli-i will give afterburner a shot. I actually played batman for a while tonight... all I've been doing for I feel like forever now is screwing with my clocks. wanted to actually enjoy my rig for a few hours :-)

the only reason I say I think my voltage may not be increasing properly is because my temps are so low when increasing it. either that or my huge case fan on the side panel is keeping it that cool... but not likely.

one thing I did see tonight is that after I installed the latest nvidia drivers ( always clean install) I never set 3d settings for power management to " max performance" from the default setting. I don'tknew if this has been causing problems oor not...I will make sure this is changed before I start screwing with ocing again.
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March 18, 2014 7:16:42 PM

mbard said:
thanks guys...
luda-sorry... typing from my phone. I meant you cannot BASE your oc on the asics reading ( or so I read).

nikoli-i will give afterburner a shot. I actually played batman for a while tonight... all I've been doing for I feel like forever now is screwing with my clocks. wanted to actually enjoy my rig for a few hours :-)

the only reason I say I think my voltage may not be increasing properly is because my temps are so low when increasing it. either that or my huge case fan on the side panel is keeping it that cool... but not likely.

one thing I did see tonight is that after I installed the latest nvidia drivers ( always clean install) I never set 3d settings for power management to " max performance" from the default setting. I don'tknew if this has been causing problems oor not...I will make sure this is changed before I start screwing with ocing again.


Well, considering that I've only been using the Classified Controller program now, I think you should try using that instead of Afterburner. All you need to do is start it up and then take off auto and move up the voltage some. I'd say 1.2 for starters. If you see your temps rising, then it should definitely be working. I believe 1.2 is the max anyways without using a custom bios so start with that and see where the temps take you at stock clocks. If you've got plenty of headroom, start overclocking. Then benchmark and see if you get any artifacts. If not, go for higher.
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March 19, 2014 9:21:16 AM

does cvc need to be running all the time to keep the voltage up ( similarly to ie. precision needing to run in the background do clocks and fan profile are loaded)?
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March 19, 2014 9:36:40 AM

mbard said:
does cvc need to be running all the time to keep the voltage up ( similarly to ie. precision needing to run in the background do clocks and fan profile are loaded)?


I'm not sure but I went ahead and placed it inside my Startup Programs folder to be sure. Whoever created the program needs to make it minimize on start up for sheer convenience. I'm not sure if it's absolutely necessary but I can find out myself.

Also, I just got my processor and motherboard so yay! Time to build two PC's from my old one and new parts!
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March 22, 2014 10:15:47 AM

Hey Luda - any further progress? I'm going to give this another shot today...I did a clean install of drivers, Precision, etc...but maxing out voltage in Precision (+63) at +125 gpu I start seeing minor artifacting during benchmarks (but RivaTuner is only reporting 1.2 voltage, I would expect 1.212 with +63). Going to try the voltage controller now to see if results are any better as reinstalling everything (and making sure Nvidia CP has power set to prefer max performance) make 0 difference.
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March 22, 2014 10:34:27 AM

mbard said:
Hey Luda - any further progress? I'm going to give this another shot today...I did a clean install of drivers, Precision, etc...but maxing out voltage in Precision (+63) at +125 gpu I start seeing minor artifacting during benchmarks (but RivaTuner is only reporting 1.2 voltage, I would expect 1.212 with +63). Going to try the voltage controller now to see if results are any better as reinstalling everything (and making sure Nvidia CP has power set to prefer max performance) make 0 difference.


For what it's worth, try that, however, I think you should try considering flashing the LN2 Bios. You can save the original bios to your PC with GPU-Z and then flash it with the Skynet v4 and if you don't like it or it doesn't help, flash it back. Then RMA that damn thing!

As far as any advancements, when I placed it in my Startup folder, it would keep randomly going to auto and putting some random voltage and I'd have to manually set it. However, I've recently reinstalled Windows 7 and now at Start Up, it 90% shows the correct voltage. Doesn't start minimized but perhaps I can fix that with some shortcut commands.

I've also managed to drop the voltage to 1.225 and I think it can be dropped lower. I've been playing Wildstar beta this weekend and haven't noticed any kind of glitching on my multi monitor setup. I'll try lowering it some more, do a Firestrike or Heaven test and then play some more Wildstar.
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