OC'ing 955 BE on OCCT-help

NoNameNoNumber

NoNameNoNumber

NoNameNoNumber

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Hi there...

I've just swapped out my trusty X2 555 for a 955 and thought I'd chuck a cheeky OC on it and see what happens...
I'm stressing with the latest OCCT 4.3.2
200*19 @1.42V
2400MHz CPU-NB @ 1.25V as per Dolks' guide.
First off I had an error on core 2 so I upped the CPU-NB V to 1.25 and now I have an error on core 3.
Temps look good, idle at 31ºC and max out at 42ºC

I'm sure 3.8GHz is achievable here but I'm just a little unsure as to whether I have an actual fault here or whether we can cure it with a better OC...

Any thoughts/comments greatly received :)

Oh and this is on Windows 8 if it makes any difference :confused:

Luke
 
Running 3.8GHz here now on stock volts with 2.2GHz on the NB again stock volts...
Do I push the CPU or the NB now?
It's passed 20 passes of high stress on IBT
Neither 3.9GHz or 2.4GHZ will work on stock volts so I'm gonna have to get a little more stuck in...
what are your suggestions?
 
I'm stable @ 4.2 2750nb but with 1.5v on the CPU and 1.3 on the NB. Max temp after several hours of prime95 was 58 degrees. Idles @ 28. Using one of the all in one water coolers, cheap one. Forget the name.
 
I need to reseat the CPU cooler as I just used some generic thermal paste I used on my ignition coil drivers on megasquirt that seemed really thick and didn't spread well...
Hopefully the MX-2 will bring the temps down!
So do I up the NB or CPU first???
 
once you get to 3.8 3.9 area they tend to heat up quick and need a good bump in volts on older ones c2

on newer version its like a extra 200mhz you may get oc (c3)
 
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Well I got to 4.2GHz on 1.45v with a 2200MHz NB but the temp was just too high at 60 deg on IBT so I've dropped it back to 3.8GHz and 2200MHz NB. When I push the NB up it isn't stable, even with a voltage increase so I guess my final OC is 3.8GHz on stock volts and 2.2 on the nb
Should I now play with my RAM :D
I'm running the team elite 2x4gb at 9-9-9-24. 1.62v
Should I go further here or is this pretty much maxed out?
 
I have an original 955 which I bought in April 2007, running at 3.8GHz. But the C3s can now reach 4.2 GHz, that’s a real bargain!

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AsRock Z68 Ex4 G3, [email protected], Ballistic Tracers 16GB,
5850 1GB(CFX), CM90 II Advanced, Crucial M4 256GB, 4 HDDs,
NH-D14, XFX 850W BE, Xonar Essence STX, BlackGold HD DVB.
 
My TIM paste has just turned up so I thought I'd check the flatness of the CPU and heat sink... It was shocking! I think once a lap the two and ramp back up to 4.2 my temps should be a lot better, I'll post pics/more details later.
 
Well I've shaved 7ºC off my full load temps!
That was well worth an hour or so, I'm not sure I'm gonna push for 4+GHz though... whats the real world benefit?!
Here's just how flat the chip wasn't
A7F2F895-BF24-4DA4-A8B4-A6EDD483BE6C-7265-0000045DC30192CD.jpg


And here's the finished article
1AAD8769-EF7E-4211-BA8F-874458638939-7265-0000045DD211A2D7.jpg


The Arctic cooling 64pro was exactly the same-concave so when you placed the two together you had a good gap ~0.1mm or so which in terms of surface flatness is HUGE!!!

Edit:the first pic isn't particularly clear but you should still be able to make out the two clear lateral low spots across the chip.
 
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