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Another one with q9450 oc problems - Page 2

post #11 of 15
Quote:
Originally Posted by mrs;12261412 
48455641.png

So i got this.. and it looks ok, but sadly prime95 is crashing within 5 seconds on this frown.gif

our bios are indeed very similar, the only difference i see is the "Loadline Calibration" (set as default to auto) which i have under the CPU voltage control.

Ok so im pushing that tRead value.. - will this be enough? or should i work some with other voltage values?

Did you have tRead Value at 8? If so, try 9 or 10. I do not have Load Line Calibration on my motherboard, so I have to push Voltage extra high due to the Vdroop. If you want to rule your CPU speed and CPU Voltage out, try to down multiplier to x6 to test mem/FSB first. Then when you find the max stable Mem/FSB you can up the multiplier again. And increase Volts if needed...

Use Prime95 Large FFTs to test FSB stability.
    
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post #12 of 15
I guess your CPU will need at least 1.26 full load Volts at 3.6GHz. Load Line Calibration enabled will ensure your Voltage does not drop as much under Load.
    
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post #13 of 15
I need +1v FSB Voltage and +2v (G)MCH overvoltage to be stable at 450FSB. It may be you need more or less than this. Just try out combinations.
    
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post #14 of 15
However, you should really not jump directly to 3.6GHz. Start at lower speeds, and up the FSB one step at a time, and check for stability.

My guess is you should focus on the Static tRead timing, (G)MCH Volts, FSB Volts and CPU Volts. And ensure your mem can handle these speeds.
    
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post #15 of 15
Thread Starter 
Ok, so i have tryed a bunch of different settings for that 3.6ghz - and still without success. This probably will need more time and tests then i expected..

Thanks for help turrican9.

Overall im gona search for some optimal settings for my current rig to have it working @ 3.2 ( this will be probably easier to achieve) and maybe later @ 3.4+?

If someone had similar experience with this cpu and rams, please let me know how you set both for a best performance - so i can try it out.

Cheers
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Q9450 C1 GA-p35-DS4 Palit GTX260 2x2GB Kingston DDR2 
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2x HD502HJ (raid 0) Scythe Mugen 2 Win7 Ultimate x64 Seasonic S12II-620 
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CM 692 II advanced 
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