help overclocking my 965 to 4Ghz!!!

craptakular

craptakular

craptakular

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I have it running on default volts at 3.8Ghz, I would like to hit 4Ghz, but when I try this it add's 10C to max load temps then craps out 2 hours into Prime95.

What am I doing wrong?

oh yes ignore the minimum temp values for CPU, I forgot to run HW monitor before prime95 :/
 
I have read that almost all the Phenom II X4s struggle to get 4GHz without major increases in voltage. With more voltage comes more heat, that is inevitable. The only thing that could be leading to the instability in prime looking at your settings is not enough voltage imo.
 
nosamaj said:
I have read that almost all the Phenom II X4s struggle to get 4GHz without major increases in voltage. With more voltage comes more heat, that is inevitable. The only thing that could be leading to the instability in prime looking at your settings is not enough voltage imo.
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That is the case, but apparently the 890 boards can get to 4GHz a lot easier than the 790 boards.

I'm going for 4GHz with my new 965 when i've built my rig with the Corsair H50, Gigabyte UD3H 890GX, Corsair Dominator RAM helping me along the way in an Antec 1200 case. If i hit 4GHz and have room to spare, i'll basically keep rising it till i can't anymore, but i'm not going over 52c.

Temps seem fine to me, 62c is the max this chip can take IIRC and is prime really necessary if all you do is game? [that's if all you do is game] Won't 3DMark be a better option for testing?
 
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Oxy, were you the one who had the Q6600/P5Q Pro combination? I had the same, but I just sold it and moved onto - you guessed it, a PII 965.

I know mine can do 3.8 on stock volts (previous owner had it at that), but my crosshair III won't let it be stable without another notch or two on top of that (about 1.43V). 4GHz requires a lot more juice, and tbh it seems that 3.8 is a definite sweet spot on these chips, much higher and you'll struggle with temps and being able to run a 'safe' 24/7 voltage. In the Phenom X4 overclocking thread (check it out if you haven't yet!), there is an opinion held, particularly by Martini1991, that any 965 with a VID of 1.4 or over won't be able to do 4GHz stable with a safe voltage. From what I gather 1.4 is an average VID, and it's what mine is too.
 
I had a Q6600 with a Giabyte P35 but sold it at christmas. I'm happy wirth 3.8Ghz, it seems I can't do anymore so at least I know it isn't me.

Now to save some money for a 5850!
 
Sounds familiar. I have the PII 965 and crosshair III with H50-1 cooler pulling air into the case as your supposesed to so temps are good, i bought this combo cos it seemed every1 was gettin 4ghz easily with it but mine refuses to go above 3.8 no matter what. Iv tried alsorts more volts then exessive volts then clocking via FSB rather than Multi then altered memory timings from the rated 7-7-7-20 to 8-8-8-24 still nothing im no expert clocker iv just read a lot on here and tried everything so i think without changing some hardware im stuck at 3.8 unless anyone can suggest anything else to try? Oh and yes its the C3 version.
 
Well I have a 955 that has a VID of 1.375, I can get it stable at 3.914ghz but after 3.8Ghz its a struggle. I has it set at 19x multi and 206FSB. Usually you can squeeze a few more Mhz by tweaking the FSB.
 
Probably better leaving it at 3.8 I bet the extra 5% in Ghz wont translate to 5% more performance especially with the amount of volts an heat that would be pumping out, maybe better trying to get a higher northbridge frequency
 
'Wes said:
is prime really necessary if all you do is game? [that's if all you do is game] Won't 3DMark be a better option for testing?
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:eek:

prime is necessary even if all you do is game, just because it doesn't crash doesn't mean it's stable... maybe you'll get missing pixels in games or flickering things.
 
3.8ghz is the sweet spot for a C3. Or that's what the Phenom II overclocking thread threw up anyway. :p

My C2 however needs 1.525v to do 3.8ghz. Overclocking these is a bit pointless IMO anyway, as 3.8ghz is 12% faster than stock. I'd rather stick at stock...
 
egnshane said:
Probably better leaving it at 3.8 I bet the extra 5% in Ghz wont translate to 5% more performance especially with the amount of volts an heat that would be pumping out, maybe better trying to get a higher northbridge frequency
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K so whats a decent NB speed to go for and does it make much difference to performance (mainly in games)? cheers for the advice btw.
 
The northbridge speed should increase performance and as said before 2.6 - 2.8ghz would be good.
You may have to up the NB voltage a notch or two, have you tried push pull on your fenrir (not sure if it would reduce temps greatly but it might help)
 
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anything above 2400 NB and my pc resets after a while... i thought these asus crosshair boards were spose 2 b good?
 
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