HOWTO: Overclock C2Q (Quads) and C2D (Duals) - Guide v1.6.1 - Page 4

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To do the thing he did, run 416x8. Set your RAM to 5-5-5-15 to be safe. If you're stable there, then try to tighten up the timings.

You've got a killer rig dude. Jeeeaaaalouuuus.....

;]

FYI, you can delete your post. Choose "Edit this message" (not quick edit) and click the box "delete this post" and hit the submit button. That said....

Speaking of PSU...LOL...I just went here: http://www.extreme.outervision.com/PSUEngine and plugged in all my stuff. According to this "calculator", I should have a 750W PSU! I'm sure I could use a little more than I have, but 750W without SLI? I don't think so. I'll probably go pick one up anyway. Especially with my newfound issue below:

I've discovered a whole world of "wacky" on my end. Amusing as it is perplexing.

Check out my new post HERE: http://www.tomshardware.com/forum/ [...] eath-death

I'm totally stable @ 3.15Ghz (8x395 @ 1.3375v). Seems a bit too much of a voltage increase for such a small bump in performance. Well, I picked up a 700W PSU with 3x12v rails so I'll see if I can get a higher bump with lower voltage. If not, no need for the PSU. Still can't figure out the wacky ram issue. How am I more stable with more ram?

So how'd everything go?

I put the 700w PSU in. I didn't run any benchmarks but as far as temps and Prime95 goes, I'm not any better than my 480W. One thing I did find out is that the NeoPower 480 has horrible efficiency. 70% min at load and 60% on light load. Newer PSU's have 80% efficiency.

Also, I noticed something that runs along your analogy with the v8/v6 engine. My 480w PSU gets fairly warm, almost hot under load and the 700w PSU never warmed up at all. Stayed really cool.

That alone should lower temps. I didn't put my case side back on so both PSU temps were done with the case open. Probably not the best test. I'm sure temps will drop with the case side on with the new PSU simply because it doesn't add any heat itself.

Check this out, watch the second guy speaking, is this guy freaked or what! looks like he hasnt been out in daylight for a while, thats what i call a chip head!

http://news.zdnet.com/2422-13568_2 [...] ag=nl.e539

yeah i felt sorry for that guy, he was totally out of his depth.

no didnt try it yet, this gtx is going back. i got the bfg version ordered instead, the thing gets way too hot and crashes out in games. might be a faulty one, i couldnt get a driver to work at all in xp, not good.

so my x1950xt is back in, i might try it later. i did run 10x333. booted and run fine just not completing stress tests, ill try it now n get back...watch this space..please dont let me fry my chip!

LOL, that looks like some fine DNA to me size 10 shoes i believe!
man thats not good service huh? send it back and demand an thermalright 120 ultra extreme as compensation, cos you have been emotionally damaged by the upset of it all. he he.
those globs look like a cpu has exploded under it at some point! melted and fired out molten globules.....

sorry man i cant resist. send it back n say your buddy in the uk said 'i say' this is jolly bad show!'

a closer look at that, it looks like a map of australia. will they exchange it for you? or if you just lap it, that will sort it out. could be divine providence making you lap your h/s???????

ok a question for u overclockers...

i got an asus P5KPL-VM motherboard and it doesn't let me change the FSB from 333 to 400 do I have to increase the voltage somewhere?

here's my system...
intel E6750
asus P5KPL-VM
2 gb ADATA Vitesta 800 mhz
ati radeon X1600 pro
help!!!!!!!!!

@ultravincent are you changing the values in your bios? or are you using some app to try and change values?

@Hatman
Check the manual on your board, or go to the makers website to check max recommended voltage.
The fact that you have plenty of air, i dont think has much to do with what you are talking about. the voltage is the amount of juice your feeding your cpu and mobo, if you are too high you will shorten its life span. but you need to check recs on it first.
Plenty of air will keep it cool, but if you are feeding it 4v that will stay the same, what are your temps reading?

Maybe krazynutz or someone who knows more about this than me will help you further....

My System specs are

Intel C2Q 6600
EVGA 680i Sli Mobo
Corsair 2x1 1066mhz PC2-8500
EVGA 8800 GTX
Thermaltake Toughpower 750w
Antec P180 Case
Thermaltake Big Typhoon

bustamove: GARGH! can you believe it cost $13 to RMA my GeminII? Should've just bought sandpaper

ultravincent: Asus boards nowadays make you type in the FSB now. So instead of hitting "enter" and choosing a number, you just highlight the area and type in a number. THEN hit enter. See if that helps. Also, I believe your board is a mATX, which traditionally aren't made for OCing. They have the options, but aren't typically "enthusiast" (aka overclocker) boards so don't be too disappointed if you can't OC that much.

hatman: list all your voltages so we know exactly what you're referring to. A quick answer for you is that you should still get a solid 5 years out of your stuff if you OC'd properly and have good cooling. Still, post all your stock vs oc voltages so we know what you're referring to.

stavboy: you have crazy fast ram. Setting your ram @ 1:1 means that you initially set it up @ 533 to run 1:1 with the CPU. You have a 680i chipset so I think the setting your looking for is "sync mode" Once into windows, load up CPU-Z and see what it says your RAM is running at. At stock speeds, you want your "Bus Speed" to say 266 on the CPU tab and your RAM frequency to be 266 on the memory tab. Then you can start your OC. You're other option, since you have faster RAM, is run it at 667 intitially, (4:5 ratio) and OC from there. Even at FSB 400, you'll only be running your RAM @ 2000Mhz which is still 132Mhz underclocked

foch: Hands down, at stock speeds, you will notice a difference. I'm not familiar with the new boards that much but your board should automatically run your RAM at a 5:3 ratio or something like that. If your e6750 is completely unlocked and you have the option to up the multiplier that far then, yes, you'll be in luck. If you can scrimp and save $94, this is crazy good ram with a $40 rebate ($54!) http://www.newegg.com/Product/Prod [...] 6820220144

Hope all that helps everybody!

actually dude, that's PERFECT. I wasn't thinking about the q6000 and only going up to 3Ghz (which is where a lot of people sit with it). You have a 5:8 ratio on your RAM which allows you a nice OC on your CPU and your RAM is actually running at it's own stock speeds. Nicely done.

If you're happy with all that, congrats. If you want to push it further, you might have to pick a lower starting point on your ram or loosen the timings of it to OC it above 533. You'll have to play around with it to find out.

stavboy, what's your vcore voltage right now? A lot of q6600's will plateau @ 3Ghz unless you really up the voltage. Mine, for example, runs @ 3Ghz @ 1.275v. But to get it to just 3.2 Ghz, I have to up it to 1.35v. That's a pretty big jump for just 200Mhz. Are you 24hrs stable at your current settings? What cooler do you have? Idle/Load temps?

Loosening the timings of RAM means to put the timings at higher numbers (fewer clocks per cycle). For example, if your RAM is CL4 or Cas4, then your timings are most likely 4-4-4-12. If you're CL5 or Cas5, then you're probably 5-5-5-15. You can change the timings in your BIOS. If you have Cas4 RAM, then you might have to "loosen" the timings to 5-5-5-15 to push it above 1066Mhz.

If you have Cas5 RAM, then you might want to consider changing the ratio and starting with a lower RAM speed in your BIOS because as you increase your FSB, then your RAM speed will increase as well causing system crashes if your RAM can't handle it. For example, if you keep your RAM as-is right now, then if you up your FSB to 375, your RAM will run @ 600 which might be too much for it to handle unless you loosen your timings.

Hope that helps!

Thanks for the reply krazynutz, I was hoping.

1&2: Yes. Always. 100 and 33.33. Some people go 105-110 but I've never heard of a benefit. There's never a benefit to OC your PCI, so 33.33 is always the answer.

3: Do what stavboy did and run your RAM at 5:8 (CPU 333/RAM 533). You will definitely get better performance.

4: As far as ram linking goes, I'm not sure. Do a google on it or read your mobo manual for a description on what it does.

A bit of sandpaper can do wonders dude, lol.

Heres an update for ya m8ty. i changed a few things, and my pocket is empty now but..... i had to rma a second 8800gtx, im waiting for the new one to arrive as i type. nggggghhhh.

And get this. remember a few pages back on this thread you said my mixed ram might be a culprit. well, i thought wth and bought 4x1ghz of crucial ballistix ram. put it in the rig and set my oc to 10x320 ran prime all night with no errors, oh i forgot, man you gotta get some shin etsu x23 thermal paste. my idles are at 39,40,36,36, but the biggest suprise is my load temps are not going over 59! @32.ghz

obviously i cant put it down to any one thing but, im sure i can push it to 3.4 on air now.

And heres the biggy, i just ordered a water cooling set up. cutom parts, i didnt want a kit deal. I got some nice parts coming and im gonna log some photos, ill link you to them thru pms. i wanna see this baby zinging @4ghz!!

Like i said im pretty broke now but i feel good that i finally see some results after all my early frustrations.

hows your oc coming? did you get the new h/s fitted?

To the guy with the e6750 that posted here, dont take my word but im pretty sure i read somewhere that chip doesnt have an unlocked multiplier, i had the e6700, i was told that was thé reason the e6700 was more expensive e6700= unlocked mutiplier]. unless its changed with a new revision. maybe you will be fortunate, just thinking though the q6600 is not much more money? if not the same price right?

Yeah your probably better to get the replcement, but,,,with the extra dollars you could have got the thermalright. but you know that.

cool psu, i noticed a big difference when i changed mine. you will too i should think. how much was it?

And yes i dropped some serious cash on this lot, but like i said its rocking now, and when i get the wc in place. it will be done. [dont quote me on that though]

I just need to wait for my gpu to come back, I got a guy fitting the block on it, Im not gonna risk the gpu myself [after rma-ing 2 of em already! they must love me at that shop lol.

the cpu is running at 1.352, which is probably not necesary but it seems happy. thats according to cpuz, core temp says bout the same. i found out that you cant rely on the setting in bios on this board for example if i set 1.4v in bios i get like the volts i quoted above, so its about half a volt out on load. or something in real voltage, so it kind of seems that runs in line with temps being iffy in the bios for this board, my bios version anyway.

I checked both temps and volts in several apps, they all show the same-ish. bios monitor says different. im going with the majority.

pics will come, the case needs to be modded, so ill log them probably in another forum. ill give you the links.

Got my gtx back this morning, well they replaced it again....3rd time lucky huh

The case and wc i decided is probably better off in someone elses hands,
so its going off to a pro modder 2 morrow

ill update you when pics are available..

You have to try shin etsu x23, my temps under load are like 55 tops @3.2!
at idle 39 39 36 36. the load temps are showing the biggest difference, the washer mod helped too.

Foch: Nicely done.

Bustamove: Dude, I FINALLY got my NeoPower 650 Blue and GeminII installed. This time around, the GeminII was perfect. PSU runs cooler and, so far, the GeminII works wonders. My idle temps didn't really change at all but my load temps dropped about 6-8 degrees! Not too shabby considering this is uncured AS5 (GeminII) vs cured AS5 (XP-120).

Speaking of AS5, how much did your temps drop when you switched from AS5 to the shin etsu x23? I was looking up prices. Seems fair. If I can drop a few more degrees, I might be tempted to go for 3.4.

That'd be fun...

OH, and I must have applied the AS5 better or my GeminII has better contact with my CPU because with the XP-120, my cores, at load, had a 7º difference between the hottest and coolest core. Now I only have a 3º difference.

Sweet.

what heatsink/air cooler are you using right now?

with a 6300, you're gonna top out around 3.3Ghz with air - even with a good air cooler.

If you're hitting 70-80ºc at load, you're too hot. Get better cooling or lower your OC.

Are those RAM timings stock for your RAM or is that what you put it at to OC?

Your FSB is pretty high already. You might be topping out. Maybe up the voltages on the NB core or FSB?

Great job, and good experience.

Thanks

Does it have the unlocked multiplier?

its nice to have games on max everything huh...

hey Bust,

Thanks. I think I'm gonna pass on the Shin-Etsu for now. Pretty happy with temps and to put new stuff on, I have to take my mobo out and I just got all my lights back in place. I should be fine for over the winter. Maybe before summer next year I'll pick some up. How's the wc setup coming along?

Nice one m8. Im glad to hear your rig is coming together nicely. is ur psu showing improvements?
and what temps u gettin? any pics of ur rig?

well so far the rig should be posted back to me this monday coming.
The guy has fitted all the bits,
hes just waiting for a thermal probe to enable me to monitor water temps.

IVE seen some pics of the gpu with the block on, dude it looks cool!
as soon as the project log is posted ill get the links to you,
i also had a smoke black acrylic window fitted to my side panel,
some cathodes and low level lighting going in to light up the uv water. [purple water]

i cant wait. meanwhile i have my old e6600 oc to 3.4, it hasnt even broken into a sweat!
thats with the zalman 9500 on it and of course shin etsu.

ill link u up as soon as m8ty...

Bust. Thanks and you too! My case won't look nearly as cool as yours. As far as lighting goes, I went with all LED's and hid them all around so there isn't any direct light. Just a nice all-around soft glow of blue. As soon as my company gets our art dept its SLR camera, I'll bring it home and take some tasty pics.