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Problems with overclocking PLEASE HELP!!!!!!!

Tags:
  • Asus
  • Overclocking
  • i5 4670k
  • Z97-A
  • HELP
Last response: in Systems
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September 24, 2014 8:49:14 PM

Ok before I start, heres my specs
Viotek Black ATX Mid Tower Gaming Computer Case W/ 120MM & 80MM RED LED, USB 3.0
ASUS Z97-A ATX DDR3 2600 LGA 1150 Motherboards Z97-A
Intel 4670K 3.4 GHz Quad-Core (BX80646I54670K) Processor
Cooler Master Hyper TX3 - CPU Cooler with 3 Direct Contact Heatpipes
EVGA 02G-P4-2763-RX GeForce GTX 760 2GB 256-Bit GDDR5 PCI Express 3.0 SLI Suppor
1 x ADATA XPG V1.0 8GB 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model AX3U1600W8G9-RB
850W Gaming 120MM Fan Silent ATX Power Supply SATA 12V
Seagate Barracuda 1 TB HDD SATA 6 Gb/s NCQ 64MB Cache 3.5-Inch Internal Bare Driv ST1000DM003

Anyway just a heads up, I am new at this so bear with me and this is my first from ground up build.
I've been in the bios tring to figure this out for 2 days now. To start first I went for the EZ method in the EZ tuner. I go ahead and go through the EZ tune, then when it reboots my monitor says no frequency after reboot.
I've also tried some manual tuning like bumping up the core multiplier up to 40 and same result after reboot. The only way to fix it so my monitor picks up frequency again is by removing cmos battery from mobo and resetting it and I've had to do that numerous times and that cant be good in its self....
Anybodies help/ assistance would be MUCH appreciated.........

More about : problems overclocking

a c 115 Ĉ ASUS
a c 170 K Overclocking
September 24, 2014 8:56:56 PM

This was for Z87 but Z97 ain't much different.....

This is my personal "Minimalists Guide to Haswell Overclocking on Asus Boards". I don't have the patience to invest 100 of hours but I admire those who do. Using this method, most can knock it off in a weekend.

1. Stop using AIDA, Prime 95 or anything else like that. Download RoG Real Bench, HWiNFO64 and Intel ETU.

http://rog.asus.com/forum/showthread.php?43233-Realbenc...
http://www.hwinfo.com/download.php
http://www.intel.com/content/www/us/en/motherboards/des...


Usage of testing and monitoring programs:

When you open Real Bench, move both windows to left side of screen. Open HWiNFO64, run "sensors only", you will get a pop up asking whether to disable reading the Asus EC chip, click "Disable this sensor". Move the HWiNFO64 window to upper right hand corner of screen. Stretch bottom of window to full screen height. Make the following changes:

-Right Click on "System" right at the top, select hide.
-In the next section, hide the last 4 lines starting "Core CPU Thermal Throttling" (if you watch temps, this is useless)
-Skip over the next section and Hide the section after that (section includes CPU Package thru DRAM Power)
-Now the whole reasons we did that was so you could see everything you wanna see at same time. You should be able to see Vcore 0, 1 and 2 at -the bottom of the window. If not hide a few more lines. Save and Quit will save your edits.


2. I am going to assume that you want your PC to power down and reduce voltages when not needed so for this we'll use Adaptive settings. Adaptive will throw an extra 0.10 to 0.13 volts at your CPU. Again, I would NOT use P95 or AIDA on this setting without constant attention.

3. After setting BIOS to defaults, Input the following settings and then right click on them to add them to your favorites page. This will allow you to access all the settings you need to without bouncing all over the BIOS:

AI Overclock Tuner = Auto
1-Core Ratio Limit = 42 (all others should automatically change with Sync all cores selected above)
Max. CPU Cache Ratio = Auto
Min. CPU Cache Ratio = Auto
Fully Manual Mode = Disabled
Core Voltage = Adaptive
Additional Turbo Mode CPU Core Voltage = 1.200
Core Cache Voltage = Adaptive
Additional Turbo Mode CPU Cache Voltage = Auto
Eventual CPU Input Voltage = 1.90
DRAM Voltage = Auto

I'd suggest taking a screen shot (F12) of the favorites page when ya have successfully passed the stress tests.

4. Open Real Bench, select Benchmark Tab Check only the last box. Open HWiNFO64, run "sensors only" as described above. Start Real Bench and don't touch mouse till finished. Observe voltages and temps. If you can get thru these 2 minutes, your close.

5. Then try checking all 4 boxes and run again NOTE: During the 3rd test Open CL will send AVX instructions to CPU; pay close attention to Vcores as they will spike as described above. If passes.....

6. Switch to the Stress Test Tab and select the amount of RAM you have in your system and 2 hours..... (Note: If you plan on raising cache and / or RAM after a run, I will usually save the two hours and skip this step until I have Multiplier / Cache and RAM speed at my targets.

7. If at any point you fail, up Core Voltage to 1.225 (+0.025)...Always watch temps and stop tests if you reach temperatures of concern (> 85C in my book). Record the following:

42/A/A/Auto - Shorthand for 42 Multiplier / Auto Max. Cache / Auto Min, Cache / Auto DRAM setting
Actual RAM Speed - i.e. 1600
Ambient = Room Temperature
Coolant Temp at Idle = Requires a sensor
Idle Core Temps Before Test on Each Core = i.e. 25, 26, 24, 22
Average Core Temps for Each Core During Test = i.e. 59.6, 58.2, 52.7, 49.4
Max Core Temps During Test on Each Core = i.e. 65, 62, 59, 54
Settings you input in BIOS for VCore, VCC Ring (Cache), VCCIN (Eventual), DRAM i.e. 1.2000, Auto, 1.900, Auto
Actual Readings in BIOS for VCore, VCC Ring, VCCIN, DRAM i.e. 1.040, 1.122, NA, 1.671
Actual Readings in HWiNFO64 for VCore, VCC Ring, VCCIN, DRAM i.e. 1.296, NA, 1.920, 1.681
Highest Voltage Reading on any Core During each of the 4 Benchmarks, i.e. Image Ed. 1.200 / Encoding 1.216 / Open CL 1.296 / Multitask 1.248

7. If at any point you fail, up Core Voltage to 1.250 (+0.025). If ya fail again, go another notch (1.275) but I'd stop there.

8. Once you pass, it's time to consider cache voltage. Some are content to leave at Auto (39) as it affects very, very few applications (skip to step 9 if this is you), others try and get as close as they can to the CPU Multiplier. If you want cache up, go to 42/42/42/Auto. If ya fail, bring up cache voltage in same 0.025 increments.

Settings will look like this when starting:

Max. CPU Cache Ratio = 42
Min. CPU Cache Ratio = 42
Additional Turbo Mode CPU Cache Voltage = 1.200

9. Once stable, it's now time to get ya RAM up to its rated 2133, 2400 or whatever. Change 1st setting above to XMP

AI Overclock Tuner = XMP

Referring back to step 6, this is the point I normally do the 2 hour test when I am "done" with a given multiplier. So run the 2 hour test here, followed by an 8 hour test w/ Intel ETU.

10. If ya fail.... up ya voltages as per above..... as long as things don't get too hot.....see limits below. If ya pass, it's time to see if we can lower temps and voltages. I dunno if it matters what order ya do it in but I did VCCIN 1st till I failed then bumped up till I got lowest stable setting. Then did VCCring (Cache Voltage Setting in BIOS) till I got lowest stable setting....and finally VID (BIOS CPU Voltage setting) last. I leaped in "half" amounts.

For example.... Default VCCIn is reportedly less than 1.8 .... so if 1.9 worked, i went "half way" to 1.85 .... if 1.85 failed, I went halfway between known good and bad to 1.875 ....same deal with VID and VCCring.

11. With the 42 series if tests complete, "rinse and repeat" with steps 3 thru 10 after moving up to CPU Multiplier to 43, then 44 or as high as you are willing to go. At 46 multiplier I found 1.9 VCCIN to be inadequate.... this is the one voltage I found that going too high or too low is problematic (other than heat and maximum upset voltage limits of course). I went to 1.98 (last yellow setting) and it was too low..... 2.08 was too high. 2.04 worked for me w/ 46 multiplier,

12. These are my settings to give ya an idea of luck I had .... your mileage will vary. Asterisked ones are those I didn't go back and try and get better temps / voltages.

42/42/42/XMP (2400) *
VCore 1.200
VCC Ring 1.200
VCCIN (Ev) 1.880
DRAM 1.700
Avg Max Core Temp = 59.0C (28.0C Ambient)

43/43/43/XMP (2400) *
VCore 1.225
VCC Ring 1.225
VCCIN (Ev) 1.880
DRAM 1.700
Avg Max Core Temp = 56.5C (27.4C Ambient)

44/44/44/XMP (2400) *
VCore 1.260
VCC Ring 1.260
VCCIN (Ev) 1.880
DRAM 1.700
Avg Max Core Temp = 59.0C (24.5C Ambient)

45/45/45/XMP (2400)
VCore 1.325
VCC Ring 1.325
VCCIN (Ev) 1.880
DRAM 1.700 *
Avg Max Core Temp = 63.0C (22.9C Ambient)


46/43/43/XMP (2400)
VCore 1.385
VCC Ring 1.385
VCCIN (Ev) 2.020
DRAM 1.700
Avg Max Core Temp = 69.0C (23.0C Ambient)

46/46/46/XMP (2400)
VCore 1.385
VCC Ring 1.410
VCCIN (Ev) 2.040
DRAM 1.70
Avg Max Core Temp = 72.0C (24.4C Ambient)


13. As for cooling / heat / voltage concerns

Here's Asus recommendations:

Quote:
A very good air cooler is required for voltage levels above 1.15V.
1.20V-1.23V requires use of closed loop water coolers.
At 1.24V-1.275V dual or triple radiator water cooling solutions are advised.


My thinking is:

Up to 1.200v = Very Good Air Cooler (Hyper 212)
Up to 1.250v = Best Air Coolers (Phanteks PH-TC14-PE, Silver Arrow or Noctua DH14) ....... Dual 140mm CLC / AIO Cooler w/ 1500 rpm fans (Corsair H110)
Up to 1.275v = Extreme Speed Dual Fan CLC / AIO w/ 2700 rpm fans (too noisy for most folks)
Up to 1.325v = Custom Loop w/ 15C Delta T (3 x 120mm / 140mm) *
Up to 1.400 = Custom Loop w/ 10C Delta T (5 x 140mm or 6 x 120mm) *

* At this level having the GPU(s) also under water is assumed

Also, if you are not running AVX, you can add as much as 0.10 to all those voltages.

14. NEVER WALK AWAY from your machine while stress testing until you are sure that temps have stabilized.
Be AWARE if test uses multiple instruction sets like Real Bench who throws out its hardest load voltage wise with the 3rd test in the Benchmark but the 4th test results in higher temps.

Remember some AVX instructions are present during RoG Real Bench type loads which will raise VCores by 0.10 to 0.13 for short periods.
I would not suggest running Prime 95 w/ AVX under adaptive under above conditions.

15. Having 4 sticks of memory will hinder ya OCs a bit.

16. If ya want the best OCs ya machine can get, this is not the guide to use. If ya wanna get it done over the weekend in between taking work home, course work, Honey-Do Lists, Daddy Taxi and other life demands, this may get it done in a weekend :)  .

WORD OF WARNING: Some of us are having problems with the BIOS clock freezing and a suspected cause is the use the saving, loading and backing up of OC profiles in the Tools section of the BIOS. I would avoid use of that feature until such time as the cause is confirmed or a fix is available.


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September 24, 2014 9:17:59 PM

Thats some good info on overclocking, but my problem still persist. My monitor stops recieving frequency after reboot from OC.
And my monitor is a new monitor too its a Asus VS247H-P 23.6-Inch Full-HD LED-Lit LCD Monitor
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a c 115 Ĉ ASUS
a c 170 K Overclocking
September 24, 2014 9:26:58 PM

Something is getting scrambled when ya OC fails.... solution is to bump things up gradually until ya fail and then go down a step.

There's usually much easier ways to reset CMOS on Asus Boards. Once done, set BIOS to defaults and change just one thing MANUALLY at a time.
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September 25, 2014 12:58:50 PM

Ok I'm gonna leave it stock for now. I had it to 3.8 mhz but still 3.4 ghz? Theres been a suggestion that it might be my PSU, but I still dont understand why it would effect my frequency to my monitor?? All I have my monitor hooked up with right now is 1 DVI plug and theres 2 on my GPU. No HDMI cords yet. And there is no VGA on my GPU. I doubt that this has anything to do with it, but I thought I'd put that info in to. Also I heard the PSU I got ,( Kentek model #KTPS-850 isn't so good. I have another 1000w refirbished Dell PS-5651-1 ROHS PSU, but I don't think that would work either??
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September 25, 2014 6:36:51 PM

Ok I got frequency up to 4125mhz but CPU still says 3.4ghz??
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a c 115 Ĉ ASUS
a c 170 K Overclocking
September 25, 2014 6:53:27 PM

You only gonna see the higher speed when under load.

watch HWinFO64 while running Rog Real Bench

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September 26, 2014 4:48:34 PM

Ok I just ran the extreme tuning utility and I got 4.13ghz at 87 degrees c. I hope it didnt fry my CPU lol. And I have a decent tower cooler on my CPU Cooler Master Hyper TX3 - CPU Cooler with 3 Direct Contact Heatpipes. But one of the snap down mounts on it don't want to snap down right
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a c 985 Ĉ ASUS
a c 424 K Overclocking
September 26, 2014 5:30:33 PM

When the OC fails, it generally sets all or part of BIOS to defaults which can include the primary video output from PCI-E (PEG) to the iGPU, might check that it is set to PEG
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September 27, 2014 4:07:55 PM

GPU is on PSIE X 16. I decided to order a Corsair H100 liquid CPU cooler, possibly another full ATX caseb but dont know when and another PSU down the road. My CPU is running 40 to 50c at idle, got up to the 90s in stress test. It just shouldnt grt that hot for even a haswell
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September 27, 2014 4:11:14 PM

Is this a good PSU for my build??
Thermaltake TR2 800W Power Supply

- ATX 12V V2.3 enables most reliable and robust power delivery.
- Stable 800W continuous output (peak power 960W) @ 50 ℃operating environment.
- Robust and dedicated single +12V output provides superior performance under all types of system loading.
- 80 PLUS Bronze Certified: with 82-88% efficiency @ 20-100% load under real world load conditions.
- Double-forward switching circuitry offers low power loss and high reliability.
- Universal AC input 100V~240V automatically scans and detects the correct voltage.
- High quality 105 ℃ Japanese main capacitor provide uncompromised performance and reliability.
- 99% Active Power Factor Correction provides clean and reliable power to your system.
- Ultra-silent operation with intelligent 12cm cooling fan speed control.
- Intel & AMD CPU compliant.
- Nvidia & ATI/AMD graphic card compatible.
- Dimension: 150mm(W)x86mm(H)x140mm(L).
- High reliability: MTBF>100,000 hours.
- Built in industrial-grade protections: Over Current, Over Voltage, Over Power, Under Voltage and Short-Circuit protections.
- Safety / EMI : UL/ CUL, VDE, CE, FCC, CB, GOST and BSMI certified.
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a c 115 Ĉ ASUS
a c 170 K Overclocking
September 27, 2014 4:48:20 PM

Are you in US.... nothing makes sense other than this at this price

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

And no, that PSU ain't so hot

id also steer away from the H series coolers...if ya want water, only AIO I can recommend is Swiftech H220

Phanteks PH-TC14-PE, Noctua DH-14 or 15 , Cryorig R1 Ultimate
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September 30, 2014 10:43:52 PM

Ok I got a new development going on. I have my multiplier set at 42mhz with 1.200 voltz. But now my CPU clocking speed is stuck at 800mhz and cant seem to get it unstuck. If any of you know or heard anything like this and have some insight, please let me know.
I found another post with the same problem but no results on his end either.
G3258 using ASUS Z97-A, Speed stuck at 800mhz
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 1, 2014 9:10:21 AM

Stuck ? .... Are you looking while load is applied and what are you looking at ? Correct Answer HWinFO64 :) 

800 Mhz exactly where it is supposed to be until you put load on it.
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October 1, 2014 9:52:52 AM

Yes I ran test on it and it stayed around 8.000mhz. Stock it should be at 3.400mhz. Anyway I had to set CMOS again. This thing is doing some weird shit here, I'm starting to wonder if I got a bad CPU or not. I still don't make any sense of the monitor losing signal after some of the overclocks. I can't find anything online that remotely resembles that. I'm gonna play with the voltage a little more and see what I can do. Think maybe this could possibly could be a PSU issue?? I do got another PSU coming in, a ( Fractal Design Integra R2 750-Watt PSU). Also got a Corsair H100 water cooler and a new case (
Sentey Eagle Plusgs GS-6020 Extreme Division Tower Case). Which is a low end case, but does have good qualities for its buck and it appears I can fit that Corsair H100 right up in the top of it. It might be a tight squeeze with where the MOBO is mounted, but I an idea of how to work it if MOBO is sitting to high up
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October 1, 2014 9:53:25 AM

meant 800mhz
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 1, 2014 10:14:28 AM

Bigj73nsb said:
Yes I ran test on it and it stayed around 8.000mhz. Stock it should be at 3.400mhz. Anyway I had to set CMOS again. This thing is doing some weird shit here, I'm starting to wonder if I got a bad CPU or not. I still don't make any sense of the monitor losing signal after some of the overclocks. I can't find anything online that remotely resembles that. I'm gonna play with the voltage a little more and see what I can do. Think maybe this could possibly could be a PSU issue?? I do got another PSU coming in, a ( Fractal Design Integra R2 750-Watt PSU). Also got a Corsair H100 water cooler and a new case (Sentey Eagle Plusgs GS-6020 Extreme Division Tower Case). Which is a low end case, but does have good qualities for its buck and it appears I can fit that Corsair H100 right up in the top of it. It might be a tight squeeze with where the MOBO is mounted, but I an idea of how to work it if MOBO is sitting to high up


If I run real bench and look at the CPU speed in real bench it says 800 Mhz.... always, because it polls the CPU at the end (or beginning can't remember) before / after the test is running.

I don't think the H100 or Fractal PSU will be helping you out.



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October 1, 2014 12:13:10 PM

There might be a slight possibility it could be the PSU, I hope it,s not just a bum CPU. The PSU I got on now is a cheap PSU. Its a Kentek 850 watt. model # KTPS-850. With the way that it won't OC higher than 42mhz then resets its self on lower clocking. Then I tried the AI suite 5 way optimization to see how that would clock it, but it only maxed out at like 3.5ghz. I know I'm new at this, but this is very odd lol. From what I've read, this should not be so much a problem, The i5 4670k should be able to hit 4.6ghz most of the times and I haven't even attempted to come close to that yet
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 1, 2014 12:53:34 PM

Bigj73nsb said:
There might be a slight possibility it could be the PSU, I hope it,s not just a bum CPU. The PSU I got on now is a cheap PSU. Its a Kentek 850 watt. model # KTPS-850. With the way that it won't OC higher than 42mhz then resets its self on lower clocking. Then I tried the AI suite 5 way optimization to see how that would clock it, but it only maxed out at like 3.5ghz. I know I'm new at this, but this is very odd lol. From what I've read, this should not be so much a problem, The i5 4670k should be able to hit 4.6ghz most of the times and I haven't even attempted to come close to that yet


4670K is a stretch on air cooling for 90% of the CPUs. I can do 4.6 on a 4770k w/ 46 cache ratio but that requires 1.385 volts .... I wouldn't go over 1.25 on the best air coolers and 1.275 on an extreme rpm AIO

You could run OCCT which does a nice job or graphic your temps and voltages while the test is going on. Look at system voltages and see what % variation you see on the 12v rail. The ATX spec allows 5% but for serious OC rigs I will always look for 1% .... moderate overclocking, I try and stay within 2.5%.

5% on 12v rail = 11.4 - 12.6
5% on 5v rail = 4.75 - 5.25
5% on 3.3v rail = 3.14 - - 3.46

I have seen this type of behavior before on a Corsair CX600 which was showing 11.35 on the 12v rail.

Do NOT run the OCCT PSU test, it's been known to send better PSU models to an early grave

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October 1, 2014 1:07:06 PM

Is there any decent software I can test my PSU with??
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 1, 2014 7:14:54 PM

Yes, they were listed in previous posts

OCCT ... again don't run the PSU test but running the GPU and CPU tests while watching voltages will find any voltage anomalies.
RoG Real Bench ...
Furmark (GFX)
Intel Extreme Tuning Utility
HWiNFO64 for monitoring voltages while running the above

Links were in 2nd post
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October 10, 2014 12:45:02 AM

Ok I got the parts I was waiting for, went through some probs, got them sorted I hope and had to do a little redneck engineering lol
So the CPU cooler, H100 has a bad fan controller on it and took a few to figure out why my CPU fans didn't work and the led on the controller didn't light up. So I just unplugged the fan connectors from the controller and plugged em straight into the MOBO. Then I ended up getting a CPU fan error at bootup, so I had to go into bios and choose ignore on the cpu fan settings. Everything when Ok for a few until I rebooted my PC. Then iit shot me error codes, [ 1 long 3 short ]. So I looked up the codes and gor referred to my GPU or RAM, so I started buy trying to reseat my RAM, but got the same results with the error on bootup. Then tried to move my RAM from slot 4 to slot 1, then the system would repeatedly turn on and off. I'm like WTF!!!! Then I ended up replacing the RAM to the original slot and moved my GPU to another PSIe slot. This seems to have done the trick!!
Now since I got the H100 and MX 2 paste, there has been been a GREAT difference with my temps. I got a OC on it now at 4.4 ghz running at mid 60s on stress and on idle I'm running high 20s to low 30s. Haven't tried anyu higher OC yet, because I'm firmly satisfied with getting the machine running at a stable pace, after the bs I went through most of the day yesterday..
Just wanted to keep you posted on whats up. If I decide to OC a bit higher I'll keep you posted..
And of coarse I appreciate all the help you been I do appreciate it.
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a c 985 Ĉ ASUS
a c 424 K Overclocking
October 10, 2014 3:37:32 PM

Sounding good, will have an eye out 4 U ;) 
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October 10, 2014 3:48:10 PM

Think I have a faulty MOBO or something. I woke up this morning getting the same beep code (1 long 3 short), and was thinking it was chipset or need to update bios. So I updated bios and still getting same beep code. When I do finally get it to boot, it gets to windows with a black screen now. I'm to the point, where I'm lost. Don't know what to do next, but maybe contact Asus for a RMA idk
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October 11, 2014 12:27:51 AM

I get it running again after resetting CMOS. But as soon as I try to OC at all now I get the same beep code with no monitor signal. Code is still the same 1 long 3 short, which refers too Video adapter failure. Bad video adapter or memory. But when I run benchmarks on GPU it runs fine. I done updated my bios and chipsets and still no positive results
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 11, 2014 11:34:42 AM

1. Check the Asus forums to see if you can find users w/ similar problems.

2. Armed with that info, I would then call Asus Tech Support .... they will take you thru some basic troubleshooting procedures.

3. At that point I have been running in to a wall in the last 2 years or so. I am afraid the tack taken nowadays is "we have never heard of the problem" ..... at which point you can point out if you've found other users w/ the same problem..... and they will offer you an RMA.
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a c 985 Ĉ ASUS
a c 424 K Overclocking
October 11, 2014 5:05:10 PM

Can tou get your hands on another video card to try? and or a different PSU? Make sure GPU seated fully in the slot, power connectors firmly attached to GPU.
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October 11, 2014 10:56:04 PM

I got it OC to 4.2ghz. The only difference is that all I did was change the multiplier and didn't change my RAM frequency to 1666mhz, which my RAM is 1666mhz stock. My BIO see's my RAM at 1333 for some reason at default, I don't know why?? I did a stress test everything was going great for like 6-7 hrs, but my screen ended up freezing. Temps topped out in the 70s at peek stresses, Was a steady 4.1mhz till till peeks, then it topped at 4.2mhz. It was a hood test till my screen froze . The fact that OC wouldn't work till I held back on RAM frequency makes me thing that my RAM might me faulty?
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October 11, 2014 11:01:52 PM

I tried to reseat and even moved my GPU to another slot and same with RAM. I don't have another GPU to work with but I do have a couple stick of G.SKILL Ripjaws Series 8GB (2 x 4GB) PC8500 1066 mhz DDR3 Desktop DUAL KIT, but my MOBO compatibilities refer to 1333mhz minimum. So I don't know if it will work
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a c 985 Ĉ ASUS
a c 424 K Overclocking
October 11, 2014 11:08:17 PM

It's possible, can run Memtest on each stick individually (maybe 4-5 passes) it takes awhile.
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 12, 2014 10:08:11 AM

Bigj73nsb said:
I got it OC to 4.2ghz. The only difference is that all I did was change the multiplier and didn't change my RAM frequency to 1666mhz, which my RAM is 1666mhz stock. My BIO see's my RAM at 1333 for some reason at default, I don't know why?? I did a stress test everything was going great for like 6-7 hrs, but my screen ended up freezing. Temps topped out in the 70s at peek stresses, Was a steady 4.1mhz till till peeks, then it topped at 4.2mhz. It was a hood test till my screen froze . The fact that OC wouldn't work till I held back on RAM frequency makes me thing that my RAM might me faulty?


Coupla things ....

1. To get much past where you are you are going to need to change your VCCIn (Asus calls it Eventual CPU voltage) to 1.9 volts.

2. Should really use RAM in matched pairs. .... you build list says 1600 .... but here you say 1666. Check w/ CPU-z (memory tab) to see what your standard JDEC and XMP profiles are. If it says 1600 is XMP, then use the XMP setting in BIOS ... make sure it is using the correct voltage for XMP also.

Here's some recent test data using an Asus Board at the lower RAM settings

42/A/A/Auto (42 CPU Multiplier / Auto Max Cache Ratio) / Auto Min Cache Ratio) / Auto RAM voltage
VCore 1.2000
VCC Ring Auto
VCCIN (Ev) 1.900
DRAM Auto (My RAM was 2400 so you should use XMP here)

42/42/A/Auto
VCore 1.200
VCC Ring 1.200
VCCIN (Ev) 1.900
DRAM Auto

The same settings worked for me at 43/43

44/44 required a boost
VCore 1.250
VCC Ring 1.250
VCCIN (Ev) 1.900
DRAM Auto

As did 45/45
VCore 1.287
VCC Ring 1.287
VCCIN (Ev) 1.900
DRAM 1.700

The idea was to find stable settings, then I went back and toned down VCCIn and found all settings also worked at 1.88

3. RAM should be installed in the Modules indicated in the manual. First one goes in A-2, 2nd in B-2 .... that's the 2nd and 4th from the CPU.

4. Memtest will confirm if this is the problem. I usually test first with both stocks in place, this is more time efficient most of the time since if it passes (which it does 95% of the time), you're done. If it doesn't, you can test each one individually in the A2 slot:

if one fails and one doesn't, you know what the problem is
if both fail, then try testing in the B2 slot, if they both pass, then you know the slot was bad.

But ..... since you only have the one stick in your build ..... you'll have half the job to do....I'd usually start the test before bed and check in morning.

As for the 2 spare sticks, I have no experience running 1066 on Z87/Z97 so have nothing to offer.

5. If your RAM's XMP setting is 1600, then the system will default to 1333 as that would be the highest JEDEC profile, to enable XMP, you have to select the XMP profile in BIOS

Set "AI Overclock Tuner" to = XMP

Do any of your settings vary from this ?

AI Overclock Tuner = XMP
1-Core Ratio Limit = 42 (all others should automatically change with Sync all cores selected above)
Max. CPU Cache Ratio = Auto
Min. CPU Cache Ratio = Auto
Fully Manual Mode = Disabled
Core Voltage = Adaptive
Additional Turbo Mode CPU Core Voltage = 1.200
Core Cache Voltage = Adaptive
Additional Turbo Mode CPU Cache Voltage = Auto
Eventual CPU Input Voltage = 1.90
DRAM Voltage = Auto


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October 12, 2014 2:22:04 PM

Ok everything I've read so far tells me to stay away from adaptive, especially when stressing. Reason is, is that the mobo will overvoltage the cpu during the test. Anyway I just tried to clock again just at 40, without touching my RAM settings and seemed to work except during stress my display adaptor stopped working and recovered its self and when screen saver attempted to come on, it went to white screen. When I clicked on it, it said program failed to respond. So what I got a bad GPU? And when I came back to pc again today I got same beep codes= 1 long 3 short
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October 12, 2014 2:30:39 PM

Could it be my gpu the time doing all of this??
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 12, 2014 2:42:32 PM

Adaptive is not recommended for unattended stress testing with certain synthetic benchmarks which present conditions to your CPU that they will never see in every day usage. The use of said programs is in fact NOT recommended for Haswell / Devils Canyon and even Ivy bridge. As indicated above, ACX instructions add 0.10 to 0.13 volts when AVX instructions are present. In normal AVX equipped applications (i.e. Open CL) , these result in intermittent voltage spikes which do no harm to the CPU because of the short duration. However, programs like P95 will hammer the CPU with a constant barrage of AVX which no application in existence actually does. A spike from 1.375 to 1.505 is "no bigga deal" for a microsecond .... it is a heat issue when that hit is maintained continuously for a period of time.

What is your goal ?

1. You want the highest OC you can possible get so you can post your P95 stable OC on web based leader boards.... here you should not use Adaptive.

2. You want your CPU to run as efficiently as possible, downlocking to 800 Mhz when the extra "oomph" isn't needed (this can be side stepped with other BIOS settings) and extending the CPUs life as long as possible.

JJ gives a good explanation of this in the manual overclocking videos for asus boards on youtube.

P95 was a good tool when we had nothing else ..... but applications based stress testing is far more applicable to today's CPUs.

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October 12, 2014 4:16:41 PM

Ok I didn't like prime95 much myself. I prefer to have a graph displayed, where I can sit across the room and still see whats going on and not have to rely on reading text. Also I went into bios and noticed that my graphics was set on auto instead of pcie. Not sure if that makes a difference, but I'm trying shoot at any option other than having a faulty GPU. Can't afford to fork out more $$ for another GPU right now
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October 13, 2014 9:38:19 AM

Ok I know that BIO lingos are different in different systems, so correct me if I'm wrong?

VCORE= Additional?
VCCIN (EV)= CPU Input?
VCC Ring= Catch ratio right???
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October 13, 2014 9:50:53 AM

Sorry order got messed up. Start at the second one from the bottom and move up till the bottom is the last
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 13, 2014 11:16:46 AM

Bigj73nsb said:
Ok I know that BIO lingos are different in different systems, so correct me if I'm wrong?

VCORE= Additional?
VCCIN (EV)= CPU Input?
VCC Ring= Catch ratio right???


Additional Turbo Mode CPU Core Voltage
Eventual CPU Input Voltage
Additional Turbo Mode CPU Cache Voltage
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October 13, 2014 11:25:04 AM

I have CPU input voltage. Is the the same as Eventual CPU input voltage?
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 13, 2014 11:27:20 AM

On my BIOS there's two ... Initial and Eventual
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October 13, 2014 11:41:55 AM

screenshots of my bios are above
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 13, 2014 12:19:17 PM

I guess Asus decided to discontinue the dual settings.
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October 13, 2014 12:39:16 PM

So what does that change on my end?
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a c 115 Ĉ ASUS
a c 170 K Overclocking
October 13, 2014 1:03:14 PM

Think about it ....

On mine the voltage will "eventually" get to 1.9, yours will get there a few seconds earlier :) 

I seem to recall that the double option was provided on the higher end boards whereby at extreme overclocks the system wouldn't boot.... power saving functions and downclocking only work in windows so BIOS sees same voltages at bootup as it does when under load.
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October 13, 2014 3:46:23 PM

Ok I see. Got it back up to a stable 4.4ghz again. Done ran 2hr stress with realbench with temps spiking at mid 60s
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