mikecoscia
Limp Gawd
- Joined
- Jan 26, 2005
- Messages
- 436
Thanks gonna try running it with Prime95 in a minute and see how it goes.
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Last time a thread like this started up I found it surprising that several people replied back stating that they don't bother doing the usual 8-12hrs Prime95 to test overclock stability and if the pc handles games and other simple tasks fine then they consider the pc stable. I wonder if these people are the same ones who later up start threads about how their video card drivers suck/ cannot install properly and how other OS/software related stuff goes haywire in their system.
Also, I did my stability testing at 3.7 @ 1.256v and ram at 1.66v, which is higher clocks and lower voltage that the final specs in my sig.
Thanks gonna try running it with Prime95 in a minute and see how it goes.
I need 1.38V to be stable at 3.6. OK... I'm beginning to think all the silent corruption I had going on impacted my "minimum truly stable" results. I'm gonna make a system image to my 2TB, unplug it, and try lower voltages.
7.2GT/s
Yep, I've tried a little bit of everything. Spread spectrum off, 900mV cpu diff voltage, qpi @ 1.4, PLL @ 2.0, DRAM @ 1.66.
Maybe it's because I'm running a faster uncore (3.6GHz / 7.2GT/s). How high can I go on uncore? 1.5v?
It is prime95 *OR* linpack stable at 1.2875V-1.35V @ 3.6.
Within minutes (sometimes seconds) of the other program being started, BSOD.
The previous screwiness didn't affect the OC's min stable voltage at all. I'm back at 1.38...
EDIT: I'm onto something... running tests at 1.30Vcore/1.45Vtt right now and it hasn't BSOD'd yet. Temperatures are 10c cooler.
Can't believe I missed that.
20x190 @ 1.35V (everything else auto), LINX and Prime95 running for 1.5 hours with max temp 82c. Hopefully it will continue and make it through till morning.
Glad I ran into this thread, this is going to be my primary comp, don't want silent corruption creeping up on me later. Thinking I am becoming a multiple stress test believer.
Whoa 7.2! i7 965 is only 6.4 GT/s. Is that okay? I don't know what other people have gotten to on that setting.
So you got bit by the uncore too. I needed minimum ~1.37v for 3338 uncore. I'm running a bit close for my standards at 1.40v for 3302 uncore. I didn't want to go over 1.4v because it seemed like a pretty big increase already.
So you have your uncore at 3600 MHz?
What benefit do you get from not using the auto option with all these other voltage settings. Won't the boards handle or to the usually apply too much voltage?
Try 30 minutes of 3D gaming while those are chugging (set LINX to low priority, Prime95 takes are of itself). The 3D gaming helps stress the uncore portion too. Then slow up just a bit to 20x185 when it passes.
At first I thought it was because the board wasn't giving enough voltage somewhere. Except for the spread spectrum thing, that should always be disabled when overclocking.
All my voltages are on Auto now except for core and uncore.
Just ran 20min of crysis without any issues besides a little slowdown, temps maxed out around 85c while playing. Why do I need to back down to 185 BLCK? I will NEVER task my system like this outside of these stress tests.
Just ran 20min of crysis without any issues besides a little slowdown, temps maxed out around 85c while playing. Why do I need to back down to 185 BLCK? I will NEVER task my system like this outside of these stress tests.
Crysis is not cpu intensive and not even multi threading intensive. Playing that game is an especially bad way to test out your cpu OC stability, if you want to use a game at least use GTA IV.
Is there that much issue with spread spectrum, i thought you were only supposed to disable it if you were having a hard time with your OCs
I know, but I was playing it while running Prime95 and LINX .
Well for those following my 20x190 @ 1.35 made it through the night and I am going on 13 hours with LINX and Prime95 running. I think LINX was on its 58 pass and prime was all over the place depending on the core, but no calc errors in either one.
Time to reinstall windows and finally start using the dam machine...lol.
In the days of old that was always a big thing 24 hr burn....fooey I say to that. As you will never be running at 100% all the time.
Typically if there's a failure in P95 it occurs within the first 20 minutes of running the program.
One of my P95 runs failed after 16 hours. That's when I found this P95 + linpack + 3D thing, and was able to induce the issue within 2 minutes.
I've moved on to the video card ... bought one of those "stock overclock" cards, big mistake, as it doesn't come close to passing OCCT3.0 + self-check for more than a few minutes!
im in the same boat psyshack except i run boinc instead of F@H cpu client.. all 4 systems run full load 24/7 ultimate stress test in my opinion..
You will never run into a hard core DC'er with unstable or junk machines. They may not be state of the art or at the bleeding edge of a OC. But they will not tolerate a pesky box!
Yah same here Xorbe, and I thought my 3.8 was stable at 3.0v after 24hours of prime95. Within minutes of LinX and Prime95, my system crashed. Turned the voltage up to 3.5 and stable as can be, even played a little Crysis while LinX and Prime95 were running. This thread you made me a believer in multiple stress tests, thanks everyone .
yup all my systems minus my 6400+ are overclocked to the bleeding edge though id like to take my x2 be-2350 to 3.5ghz but the friggin motherboard wont let me go passed 1.5v and i need 1.55v to get to 3.5ghz
man 3.5v anyone smell a cookin 45nm processor? lol had to get ya for that typo..
Not a software conflict ... haha you discovered how much heat it can really put down!
It's always a good idea to run the tools at stock clocks and voltage first to know it works, and then go from there.
I was able to get a 40 minute run in with both Prime95 in 64bit mode and Linx in 64bit mode without any problems other than 2 of my cores periodically hitting 62 according to Realtemp.