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Overclocking my Phenom II 955

post #1 of 18
Thread Starter 
This is my first overclock!

I think I managed to get a stable 3.8 clock at 1.33V core. Just ran a burn test and plan on running prime95 while I sleep. Before I do that, how does everything look? Any suggestions?

486
post #2 of 18
For now it seems Fine. Run Prime95 Small FFT's over night ^^ and report back.
    
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AMD Phenom II x4 925 C2 2.8@3.7GHz NB 2.65GHz 1... Asrock 970 Extreme 4 UEFI Palit GTX 460 Sonic Platinum 840MHz Core/1055MH... 2x4GB Kingston HyperX 1600@1414MHz 7-7-7-21 1.65v 
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post #3 of 18
Bump your northbridge up to 2400 - 2600. You might need to give it a bit more voltage but that's the only thing that jumps out for me (Looks like it's on 2000 atm, the bump will really help)

Comps
post #4 of 18
Quote:
Originally Posted by compuman145 View Post

Bump your northbridge up to 2400 - 2600. You might need to give it a bit more voltage but that's the only thing that jumps out for me (Looks like it's on 2000 atm, the bump will really help)
Comps

Also Northbridge gives a lot more performance.
    
CPUMotherboardGraphicsRAM
AMD Phenom II x4 925 C2 2.8@3.7GHz NB 2.65GHz 1... Asrock 970 Extreme 4 UEFI Palit GTX 460 Sonic Platinum 840MHz Core/1055MH... 2x4GB Kingston HyperX 1600@1414MHz 7-7-7-21 1.65v 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM 32MB Sata 3 6GB/s Sony Optiarc 5260s 24X DVD+/-RW Cooler Master Hyper TX3 / AMD Stock fan as VRM ... Windows 7 Ultimate x64 
MonitorPowerCase
Samsung SyncMaster S24B300HL 1920x1080 Cooler Master GX 750W Cooler Master Elite 430 Black 
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CPUMotherboardGraphicsRAM
AMD Phenom II x4 925 C2 2.8@3.7GHz NB 2.65GHz 1... Asrock 970 Extreme 4 UEFI Palit GTX 460 Sonic Platinum 840MHz Core/1055MH... 2x4GB Kingston HyperX 1600@1414MHz 7-7-7-21 1.65v 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM 32MB Sata 3 6GB/s Sony Optiarc 5260s 24X DVD+/-RW Cooler Master Hyper TX3 / AMD Stock fan as VRM ... Windows 7 Ultimate x64 
MonitorPowerCase
Samsung SyncMaster S24B300HL 1920x1080 Cooler Master GX 750W Cooler Master Elite 430 Black 
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post #5 of 18
Quote:
Originally Posted by yuksel911 View Post

Also Northbridge gives a lot more performance.

That's the reason I recommended it biggrin.gif lol
post #6 of 18
IBT != stable
Believe me, I've stopped using it.
Just do Prime95 custom with shorter iterations for fast stability checks and then a normal one when you've tweaked everything.

And as Compuman said: CPU-NB is a nice boost in performance (2400 if you're running 1333, 2600 if you're running 1600 is a good starting point).

If it does prove to be stable at those voltages after a good prime95 run then congratulations, you have a good chip. Voltage increases tremendously after 3.8 though wink.gif
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post #7 of 18
Thread Starter 
Quote:
Originally Posted by compuman145 View Post

Bump your northbridge up to 2400 - 2600. You might need to give it a bit more voltage but that's the only thing that jumps out for me (Looks like it's on 2000 atm, the bump will really help)
Comps

It's actually at 2250. Would bumping it to 2400 show a significant increase in performance?
post #8 of 18
Quote:
Originally Posted by keeganzero View Post

It's actually at 2250. Would bumping it to 2400 show a significant increase in performance?

Yes, but if you're running 2250 i'd probably want to see it more at the 2800mhz mark. Either that or drop your frequency and tighten up the timings... say 1600mhz at 7-8-7-24 or something

C
post #9 of 18
Thread Starter 
Quote:
Originally Posted by compuman145 View Post

Yes, but if you're running 2250 i'd probably want to see it more at the 2800mhz mark. Either that or drop your frequency and tighten up the timings... say 1600mhz at 7-8-7-24 or something
C

I have DDR3-1333
post #10 of 18
Quote:
Originally Posted by keeganzero View Post

I have DDR3-1333

Ohhhh I thought you meant that was your memory speed, I failed, it's still early here.

Yeah bump it to 2400 - 2600, you should be able to do that on stock voltages biggrin.gif

Comps
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