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CPU Multiplier Question

post #1 of 8
Thread Starter 
I have been doing a lot of reading here and I can see it's going to take me a while until I feel comfortable OC'ing with the reference clock. In the mean time I would like to try increasing the CPU multiplier just to get my feet wet and because it looks pretty easy to do but I have a question.

Do I need to disable or enable anything in the BIOS to use the CPU multiplier?
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post #2 of 8
Just set it to manual overclocking, and then raise the multiplier, just know that although raising the multiplier is the easy way to do things, you will still eventually need to increase the cpu voltage at a certain point
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post #3 of 8
You may need to disable the power saving features as they may cause instability.

Increasing the multiplier is easy and you will see that you will learn its basics pretty quick

Just before you start playing eith your chip. can you see what is its revision? C2 or C3? just FYI, C2 revision chips don't OC very well, and you may only be able to reach 3.6GHz whatever voltage you aplly to it..
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post #4 of 8
Thread Starter 
It's revision C3.
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post #5 of 8
disable c1e and cool 'n quiet

with that board + liquid cooling looks like your ready to go

watch the temps
62c is max, try to keep it around 50c

hardware monitor to watch temps/fans voltages ect
cpuz to verify speeds
http://www.cpuid.com/softwares.html

prime95 to stability test (run for a while to figure out max temps, watch hwmon til it peaks)
http://files.extremeoverclocking.com/file.php?f=103

if crash/bsod/lockup/restart/displays errors or it stops testing cores
give it a little more core voltage, 1.55v max

more voltage = more heat


good luck
Edited by ffejrxx - 2/25/11 at 11:47am
post #6 of 8
raise multi until it fails to boot or crashes. Then raise voltage until you can boot and run stable. repeat.

Keep temps for your chip at ~55c
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post #7 of 8
Thread Starter 
I think I may have a problem. In the screen shots below it says the CPU temp is between 62 and 68 degrees Celsius with nothing running and 71 to 79 degrees with Prime95 running. I have NOT overclocked anything yet. Am I reading the monitoring software correctly?

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c04
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MonitorPowerCase
LG 34UM64-P 34” Widescreen  Corsair 650-Watt HSPC Tech Station 
CPUMotherboardGraphicsRAM
Phenom II X4 955 BE Gigabyte GA-790XTA-UD4 ATI HD 5850 1GB  G.SKILL 4GB DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
Western Digital 320GB HDD Seagate 600 Series 240GB SSD External Sony DVD Asetek 510LC + 2200RPM Push Pull Yate Loons 
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post #8 of 8
u probably applied the cooler wrong , turn off the pc to prevent from causing any permanent damages and check with ur cooler\hermal paste
On topic , while OCing with multiplier is easy , its not as rewarding as it seems the difference from going from 3.2 to 3.6Ghz in performance is minimal so as from 3.6 to 4Ghz while using multiplier , but when you OC via FSB gettign ur ram to 1600Mhz with nice timings , getting ur North Bridge to 2.6-2.8Ghz you feel the performance boost right away , 3.2Ghz cpu with 2.8Ghz north bridge might feel faster then 4Ghz CPU with 2Ghz north bridge
Edited by RabbitGT - 2/26/11 at 6:12am
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