Intel Q9550 (Overclocked @ 3656 MHz)

[silko79]

Intel Q9550 2.83GHz / ASRock P45R2000-WiFi / XFX 9800GTX+ xxx edition / Kingston HyperX PC2-8500 4Gb / 650W PSU / Xigmatek HDT-S1283 / Thermaltek Kandalf / 24" Viewsonic Q241wb

Hi guys!

Just manage to make this stable.
I would appreciate your comments.
Thanks!



Bus Clock: 430 MHz
Ratio: 8.5
3656 MHz
FSB: 1721
FSB:RAM 1:1

BIOS Settings on ASRock P45R2000
CPU Configuration
430
100
8.5
Everything Disable except Boot Failure guard

Chipset
Disable
Auto RAM Friquency
Disable

Voltages
CPU 1.4000 (will give 1.36V on CPU-ID)
RAM 2.20
NB Highest
SB Highest
VTT Middle
GTL 0.65
PLL Highest
SB 1.1V Auto
Everything else Disable

Tests:
3dMark06=15733
FurMark=1636
OCCT= Stable for 1 hour
Prime95 = Stable for 4 hours

Temperatures:
Idle
CPU=36C
Max 100% CPU (Prime95 Low)
CPU=57C

 

[alwaysoc0nfused]

I would run prime longer i have had my comp lock up and/or bsod after 6 hours. 8 hours is a safe start. I also like intel burn test, it stresses more than prime, do like 20 runs on this at max.

 

[silko79]

Hi Thanks!
I have tried Intelburn and it fails within a sec.
Any suggestion?

 

[alwaysoc0nfused]

you need to up the vcore one notch and try again. For example i just did the same thing for my OC. This morning i wanted to get to 3.625ghz

I had my vcore at 1.35 or something, ran intel burn test and it failed after like 10 mins, so i uped it one notch failed again, uped it one more time and i passed 20 runs at max ram. It took more than an hr to complete but it passed. Now im running a few benchmarks along with OCCT. i know they will all pass.

But to answer your questions go to bios and up the cpu voltage one notch and try testing again. repeat till stable.

 

[silko79]

I went up to 1.5v
still fail intelburn in a sec

 

[orangegator]

I went up to 1.5v
still fail intelburn in a sec

Stick with 1.4V at maximum for the cpu. Running it higher for long periods of time could damage the cpu. Run prime95 small ffts for at least 12hours to check for stability. If it passes, then I wouldn't worry about the intel burn test. If it doesn't, then back off the overclock.

 

[alwaysoc0nfused]

^^^ do that. I do a variety of tests, I like being stable on everything to know for sure im stable. I wouldnt go above 1.4v like orange said.

 

[bobbknight]

Bring the voltage down, don't kill your cpu

 

[alwaysoc0nfused]

I think im stable at 3.6ghz i was working on it all day.

 

[silko79]

I have also tried with 1.6v but IntelBurn fails from the first second.

I have changed the Vcore to (1.4125V Bios --> 1.375V CPU-ID)
430X8.5=3656MHz

Stable on OCCT, Prime95, 3dMark06, FurMark

I think i will leave it like this....

 

[silko79]

 

[Guest]

You probably have reached the maximum overclock for your processor... Either your mobo can't run tat high... or your cpu can't....

I for one can get my q9550 stable for 24 hour prime at 3.85 on Air, i could go more on water... I will to when I go water

make sure you up the northbridge voltage to about 1.5 and see if that helps...


ALSO

1.4 volts is WAY TOO HIGH for a q9550... if you want any kind of overclock that won't completely fail in under 6 months... get phase change cooling... or lower the voltage...

You don't even want to get into the 1.3 volt area with 45 nm chips... 1.35 is the max you should go

 

[silko79]

Intel Q9550 OC @ 3656 MHz / ASRock P45R2000-WiFi / XFX 9800GTX+ / Kingston HyperX PC2-8500 4Gb / 650W PSU / Xigmatek HDT-S1283 / Thermaltek Kandalf

Temp: 36C Idle 57C Max

Thanks Thogrom!

I will try to lower the voltages a bit!