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AMD phenom overclocking limit?

post #1 of 29
Thread Starter 
I am thinking of overclocking my CPU (AMD HDZ965FBGMBOX Phenom II X4 965 - 3.4 Ghz AM3 Black Edition CPU) and I want to know how far I can overclock it? I will be buying water cooling, which will help me a lot in terms of temperature.
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KlistWhiteSpirit
(15 items)
 
2012
(8 items)
 
 
CPUMotherboardGraphicsRAM
I7 4790k MSI Krait Z97 GTX 780 Palit Super Jeatstream 12GB HYPER X FURRY 
Hard DriveHard DriveHard DriveHard Drive
SEAGATE BARRACUDA 1TB SEAGATE BARRACUDA 1TB 256 CRUCIAL MX SSD WD Red 3TB Nas drive 
CoolingOSMonitorKeyboard
CORSAIR H110 WIN7 X star 2560x1440 Mechanical keyboard 
PowerCaseMouse
Cooler Master V550w NZXT H440 Zalman 
CPUMotherboardGraphicsRAM
AMD FX-8350 Asrock 970 Extreme 3 AMD 7800 Series Corsair 
Hard DriveKeyboardPowerCase
Seagate Barracuda 24`` Acer Corsair 500W Zalman Z11 plus 
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post #2 of 29
Mine's at a little over 4.0Ghz:

post #3 of 29
I got a little over 4GHz too from my X3 440 (I unlocked a core, and overclocked) That's on air cooling too. WIth water you may be able to nudge a little higher, maybe 4.1,4.2GHz? It'll depend on how good your chip is.
post #4 of 29
Well i get about 3.89, more than this causes BSODs.
post #5 of 29
4-4.2Ghz depending on the chip and cooling used.

If you can keep it under 55c on load it should clock quite well.
post #6 of 29
#5 Agree

They hate heat!!

At this setting OCCT clears it as error free at all data sets biggrin.gif
955 3.2 Ghz @ 3775 MHz
1.38 vcore
Hitting 60c Tjunction in OCCT small data set

At 4 Ghz win7 becomes unstable
At 4,1 i get BSOD
At 4,2 i can't boot bios

As for heat AMD has stated 62c max operating temp, but that's the regular CPU temp reading NOT Tjunction.

I've been debating with one from this forum in PM's and this is my recommendation.

The Callisto core is a Deneb core with 2 cores locked, because of various reasons. The stated max for Callisto is 70c and therefor i personally belive i'll be safe do go as far as 74c Tjunction, without damaging the CPU.

Shutdown temp is 90c and "fry" temp is above that. I've seen a guy say it's "fry temp" is 97c
Edited by Waszipa - 4/1/13 at 5:15am
post #7 of 29
I might mention mine's on air (Hyper 212 push/pull). I had a Kuhler 620 on it and temps weren't much better than with the Hyper. So if you use a pre-built you should opt for a 120mm rad. Otherwise you'll probably want to go custom or a higher end kit like a XSPC.

Temps at idle run 38-40, on load (folding) up to 62.
post #8 of 29
#2 + #7

As he shows in picture and tell, water is needed to get good temp at +4 GHz with +0.10-0,15. Seen people on forums hit over 4.3 on water at over +0.2 vcore.

But with high Vcores like that water is a MUST!

#3
I'm impressed thumb.gif I've only build two x3 systems, both unlocked, one stable at 3,2 other stable at 3,5 GHz
post #9 of 29
My old overclock...

post #10 of 29
Quote:
Originally Posted by Waszipa View Post

#3
I'm impressed thumb.gif I've only build two x3 systems, both unlocked, one stable at 3,2 other stable at 3,5 GHz

Thank you! But to be honest I wouldn't have got anywhere near without the awesome help on here. It let me know the safe values for Vcore etc, and helped me tweak till I got 4GHz. I got stuck at 3.8Ghz for a bit, till i lowered my memory speed, and nudged the voltages. I'm running 1.5V to get stable at 4Ghz, on air, on a 95W board ! wheee.gifbiggrin.gif Not recommended, but it's been ok for me. smile.gif

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