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955 C3 Stock hsf 4Ghz. Think I can? - Page 2

post #11 of 18
With my 955 I was able to run a nice 3.6 on the stock no problems. SOunds like a jet but works.

My 965 now (broke a pin on the 955....) could run at 3.8 on the stock. Peaked at 59C. Oh, did I mention it hit 53db? Yea.

I think you COULD do it but unless you have a window open or super low ambient, it will overheat far too fast.
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post #12 of 18
Thread Starter 
http://valid.canardpc.com/show_oc.php?id=1648560
Alright that's where I'm at currently. Now would lowering muti and upping the FSB help at all?
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post #13 of 18
Too high vcore mate. 1.5 is pushing the danger zone too far.

I use 1.42 to keep my 965 at 4.1.
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post #14 of 18
Thread Starter 
Dropped the multi to 19 much better stability.
http://valid.canardpc.com/show_oc.php?id=1648583
Temps stable at 52C.
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post #15 of 18
I've done the thermistor mod too, which works. But right now your at the ragged edge. Does this rig run 24/7? Where do you live? Your at the mercy of ambient temps right now.

Around here, we leave home and have the heat on cuz it will be cold (maybe 20F), but by the time we get home, it might be 60F outside and the house will be like 85F+! No way I was able to leave it alone like that.

You can try flipping the fan over so it "sucks" through the heatsink, that dropped my temps about a degree. Maybe some better TIM, or go all out and lap the heatsink, but you really need to get a better solution. Dont trust thing out of your sight.
    
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post #16 of 18
Thread Starter 
Yeah I'll be getting a better one soon.
Alright I made it to 3.8 stable with temps about 52.
I could prolly get higher but at this point the fan is driving me crazy! (6.8k rpms lol)
I've eased down to 3.6Ghz 1.4V seems stable Temps around 45C P95.
I'll prolly see how low I can get the Voltage while at 3.6Ghz.
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post #17 of 18
If the noise really does get to you, SpeedFan works even if you short the thermistor. You can even set it up to shut down the rig if the fan fails or cpu goes over a certain temp.

I know I'm more or less hating on your OC w/stock HSF, I just dont wanna see you fry it.

Good luck man.
    
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post #18 of 18
Thread Starter 
Yeah pushing 4Ghz was really just to see if I could pull it off, not so much an actual permanent OC.
At this point I'm comfortable at 3.6 and I don't think I'll go over until I get a better case and cooler.
MOLLY
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MOLLY
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Phenom II 955 C3 Biostar TA90GX 128M XFX 5830 Kingston HyperX T1 DDR2 1066 
Hard DriveOptical DriveCoolingOS
Samsung spinpoint f3 1Tb LG DVD-R IDE Hyper 212+ Windows 7 64 ultimate 
MonitorPowerCaseMouse
ASUS VH236H Black 23" 2ms XFX 650W I just don't know anymore... Logitec G500 
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