Stable or Not?

I have pushed my overclock on my own from 3.5Ghz way up to 4Ghz. I have the i7 940 on LC. Prime 95 can run for about an hour, then BSOD at around 70C. From what I understand, I may be wrong, Prime 95 pushes the CPU a lot more than any game or program typically will. I've run a few stability tests of my own though that are essentially the basics of my computer usage.

Games
Crysis: Max settings for two hours - No Crashes/Issues
FarCry 2: Max settings for two hours - No Crashes/Issues
Left 4 Dead: Max settings for three hours - No Crashes/Issues
Mirrors Edge: Max Settings for two hours - No Crashes/Issues

Other
Sony Vegas Movie Studio Platinum 7.0: Rendering/Exporting two hours of 1080P content - No Crashes/Issues
Autodesk 3ds Max 2009: Rendering/Exporting 50 very detailed models - No Crashes/Issues

Idle Temp (after an hour of nothing demanding): ~39C
Load Temp (after anything I listed above): ~55C

I know what I have done to 'test' my rig is not very professional as some would say, but I see zero problems so far and it has been just over a month.

So your opinion please.. Stable or not Stable? Should I keep my precious 4.0 or should I lower the OC up until Prime will agree with me?

Okay thanks! It took a lot of time to get to 4Ghz and to back-track would really suck. Especially being at 4.0 for a month now, going back would really seem like a down-grade. I love the performance boost in comparison to 3.5! Don't get me wrong, 3.5Ghz is already very fast, but the additional time saving when it comes to rendering movies and such just blows my mind. Doing the math now, I figure I have a 26.75% higher clock than stock speed. I love it.

--edit--

By the way, thanks DST4ME for the quick reply. I watch the forums a lot and I knew you would probably be first to answer. Keep doing what your doing, I'm sure everyone appreciates the advice, help and knowledge you provide.


Edited by A7X-Shane - 12 May 2009 at 1:41am

MyNameisBrian: Do not forget that the load temp I posted is not 'Full Load'. As I mentioned, Prime 95 got it up in the 70's. The load temp I posted (~50C) was just the high temp that I got after hours of gaming and/or rendering videos etc.. I do stand by that ~50C (48-52) mark though. I've never seen it higher than that with the only exception being when I try to run Prime.

I have the regular FrostBite System that DS offers (CPU only).
An extra thought.. The A/C in my room is always set at 68F (20C). I have the TJ09 case, with the fan upgrade as well. So, lots of cold air is always being brought inside the case.

What did you do to increase your OC?  If you just upped the QPI and didnt touch anything else and achieved 4.0 thats quite amazing.  IF you REALLY want to get it prime stable, and with your temps it should be fairly easy, let me know what your memory divider is at, what kind of memory and speed it is, what your vcore and cpu vtt voltagews are.  E-Leet can show you pretty much all of that. 

Originally posted by justin.kerr 24 hour prime 95, then 50 passes of Linx.. as long as temps are under 85c and everything passes, then the cpu OC is stable. 1 hour of prime is far from stable. I would not even run that for just benching. lol

This man (or woman lol) is correct . If you don't have any issues or random blue screens though, knock yourself out.

Edited by EveryFlowerFlow - 18 May 2009 at 10:26pm

good choice IMO

Edited by Bill the Cat - 19 May 2009 at 10:16am