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Help OC Q6600 on 790i FTW

post #1 of 16
Thread Starter 
Greetings, this is my first post here. I've been lurking for a while though.

I've tried following guides and it's just not working out for me, can someone please do a little hand-holding and walk me through OCing from 2.4 to, maybe 3.2?

My specs are:

CPU: Q6600, 2.4GHz, Revision G0

MB: EVGA 790i FTW

RAM: DDR3 1600 (PC3 12800) Dual Channel , 4GB, 7-7-6-18, 1.8V - 1.9V
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post #2 of 16
Welcome to OCN nextexile!

First off, I recommend you take the time to fill out your system information under the User Control Panel menu. It will help others out greatly when it comes to giving you advice.

Second, I would not recommend pushing an OC to far without knowing if you have an aftermarket CPU cooler (Noctua NH-D14, Cooler Master Hyper 212+, Corsair H5O, etc.).

Third, I know it's not the Q6600 but I have the exact same motherboard (EVGA 790i FTW - see my rig below) and RAM that is specified to run at your exact same stated values (1600MHz @ 7-7-6-18-1T) and I recently sought help in getting my CPU (Q9650) overclock stable. Here is a link to my thread. It is a quick read and very informative!

In the thread you will see a template specifically made for the 790i BIOS. It includes all the relevant information others need to see in order for them to give you the best advice.

Finally, I would say reset all BIOS settings to factory default. Unlink your FSB-Memory Clock Mode. Manually set your RAM to 1600MHz and select Expert for your memory timings and enter 7 for tCL, 7 for tRCD, 6 for tRP, 18 for tRAS and finally 2T for Command Per Clock. Set RAM voltage to 1.85V.

See if your computer boots into Windows. Run Intel BurnTest for 10 runs at "High" Stress Level using 4 threads. If it passes report back with temperature readings and we can take it from there.

Sorry for the book!
Edited by Huster - 10/31/11 at 8:24pm
post #3 of 16
Thread Starter 
Thanks for making such a prompt and informative post Huster. I actually do have a Zalman 9700 cooler on my CPU. I also filled out some more information my profile. Some of the stuff I'm not sure how to find though.
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post #4 of 16
Thread Starter 
So, I understand the basics of upping the clock speed, rebooting and seeing if it works but how do I know when to adjust the voltages and which part needs the voltages to be adjusted for? Should the voltages be bumped down or up?

Are there any basic OC troubleshooting tips somewhere?
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post #5 of 16
Well, after you are able to boot into Windows you need to stress your system to see if it is stable before you move forward. Hence the use of Prime95, Intel BurnTest (IBT) and OCCT stress testing programs. Depending on if you pass stress testing or not will dictate which voltages will need adjusting.

That's why I recommended resetting your BIOS settings to stock and adjusting the RAM settings to their rated specs (7-7-6-18 1600MHz). Then stress testing your system in order to determine a base to build on.

So if you want to try that and report back with CPU temperatures while at 100% load (using RealTemp, etc.) and with the BIOS template filled out with the settings you have we'll be able to get you to 3+GHz in no time!

EDIT: Oh yeah, forgot the link you asked for! Sorry!
Edited by Huster - 11/1/11 at 11:15am
post #6 of 16
Thread Starter 
Alrighty, I did exactly what you told me. The computer is stable at 3.0. It seems a little hot but im wondering if my temp readings are off or maybe i should re-mount my cooler. I ran Prime for 11 hours.

Idle:


After 11 Hours of Prime95:


General CPU-Z stats:
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post #7 of 16
Hi

Your temps at load do seem a little high, although do you really need that much Vcore for 3Ghz (1.41v) at that voltage mine runs @ 3.5Ghz

whats you room temprature like? (as all your components seem a little warm)
How have you got your case/fans setup?
Cables moved out of the way of airflow?

Remember more Voltage=more heat and if you are not moving that heat out of your case (while moving cool air in) it will recycle that warm air back over the Heatsink.

As your idle temps dont seem to bad for that Vcore so i am not sure it's the HS (could be but would need to know the above)
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post #8 of 16
Thread Starter 
Quote:
Originally Posted by aramil View Post
Hi

Your temps at load do seem a little high, although do you really need that much Vcore for 3Ghz (1.41v) at that voltage mine runs @ 3.5Ghz

whats you room temprature like? (as all your components seem a little warm)
How have you got your case/fans setup?
Cables moved out of the way of airflow?

Remember more Voltage=more heat and if you are not moving that heat out of your case (while moving cool air in) it will recycle that warm air back over the Heatsink.

As your idle temps dont seem to bad for that Vcore so i am not sure it's the HS (could be but would need to know the above)
I didn't set the voltage manually, it's on auto. Could that be why it's really hot under load?

Room temp is at about 72 F

I'll take a picture of my setup after work so you could see how it's set up. I never concerned myself too much with air flow until this point. All I know is that my cpu heatsink blows right into my case fan. The case fan is stock though, is it worth getting something aftermarket to replace it?
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post #9 of 16
Quote:
Originally Posted by nextexile View Post
I didn't set the voltage manually, it's on auto. Could that be why it's really hot under load?
Auto always gives to much voltage i would take it off auto and drop it down from 1.41v to somewhere around 1.35v and see if it boots if not raise the voltage until you get into windows and prime test if you get a BSOD with an error code 124******** up the Vcore one and try until stable.

EDIT: also enable LLC (load line calibration)


Quote:
Originally Posted by nextexile
The case fan is stock though, is it worth getting something aftermarket to replace it?
Any front intake Fans? (or room for one) that would help get cool air in as your room temp is fine. (maybe why everything seems a little warm)
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post #10 of 16
Make sure these values are all set from auto to 100. Otherwise they will increase with the FSB, leading to possible system instability.

PCIe x16_1 & x16_2, MHz [100]
PCIe x16_3, MHz [100]
SPP<->MCP Ref Clock, MHz [100]


Yeah that's 1.42v WIth vDroop, which is nuts. As aramil said, lower it to about 1.35 and test for stability. You'll notice that your Load Temps are a lot lower with the decreased Vcore. It would be nice to know what your Q6600's VID is.

CPU Core [1.35]

Take for example my Q6600 with has a VID of 1.325. That's the high end in so far as Q6600 VIDs go. High VID is pretty lame. Basically, someone with lower VID may be able to reach an overclock with a VCore of 1.30 that you wouldn't be able to reach without increasing your VCore to 1.36. That's just a rough example obviously. More VCore equals more heat. It's no fun.

- Nim
Edited by SnuffleKitty - 11/2/11 at 8:00am
    
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