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Is your CPU stable on OCCT's Linpack @ Max setting?

dalekdukesboy said:
this was my best on my new tpower i45 w/e8600 combo I could get so far, just did it yesterday, I was quite happy at the low load voltage and still using 100% memory and getting it to pass 30 runs flawlessly @4.1 ghz....
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nice man, really nice
 
Studabaker said:
nice man, really nice
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thanks, it's taken hours of frustration and failed linpack tests to get there, but you're dead on as far as realizing the potency and usefulness of this test, people "think" they have great overclocks, but you run this thing at full memory and unless you have a really, really stable OC with every setting and voltage properly tweaked it will fail...I can't believe how much it has taught me on voltages and settings on this p45 board, it's a royal pain in the ass and it makes you think you have crap for hardware at first but eventually if you plug away long enough the rewards are great and you end up with a rock solid stable system with much fewer problems particularly in the long run...I was lucky enough to have a friend on OC.net show me this program and everything runs smoother than ever and at lower voltages with a few proper settings in the bios like vtt reference voltages and pl voltage.
 
dalekdukesboy said:
thanks, it's taken hours of frustration and failed linpack tests to get there, but you're dead on as far as realizing the potency and usefulness of this test, people "think" they have great overclocks, but you run this thing at full memory and unless you have a really, really stable OC with every setting and voltage properly tweaked it will fail...I can't believe how much it has taught me on voltages and settings on this p45 board, it's a royal pain in the ass and it makes you think you have crap for hardware at first but eventually if you plug away long enough the rewards are great and you end up with a rock solid stable system with much fewer problems particularly in the long run...I was lucky enough to have a friend on OC.net show me this program and everything runs smoother than ever and at lower voltages with a few proper settings in the bios like vtt reference voltages and pl voltage.
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yeah, i have realized that the reason my OC's were failing so much was probably due to having the settings all skewed from what they should really have been, now it's stable at lower voltages because i lowered most voltages all around but gave the VTT a nice boost, now it runs a little bit cooler with less core voltage and is totally stable (in orthos, i'm trying linpack now and the temps aren't skyrocketing to 70 anymore which is a huge change).

i really wish there was a more comprehensive knowledge base for all things P45, but if you search for keywords like vtt/termination/p45 on Google there is actually quite a bit of good info out there. i am lovin the p45 platform very much, it's vastly different from the 750i in that the documentation out there for tweaking is way more advanced and knowledgeable.
 
http://www.youtube.com/watch?v=3CLEjpjlraw

I use IntelBurn (which is LinPack) instead.

It's not necessary to go for hours on end unless you are doing some sort of destruction testing. Helps with seating the TIM I think..the heat cycles.
 
Done over 3 hours before. The recent one was short but can show my CPU + Heatsink can cope with it well.

2009042311h02cpu1.png
 
CyberDruid said:
http://www.youtube.com/watch?v=3CLEjpjlraw

I use IntelBurn (which is LinPack) instead.

It's not necessary to go for hours on end unless you are doing some sort of destruction testing. Helps with seating the TIM I think..the heat cycles.
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I use intel burn test too... one hour is really more than enough. In a half hour of Linpack a 10 hour prime stable OC crashed lol.
 
Well Linpack ran for around 35 minutes this time and I'm certain that temps weren't the problem as SpeedFan showed 60 highest for cores and my newly calibrated RealTemp was showing low 50s. Perhaps I don't have enough voltage after all. Thinkin should I raise VTT and give it a go before increasing the VCore?
 
Studabaker said:
Well Linpack ran for around 35 minutes this time and I'm certain that temps weren't the problem as SpeedFan showed 60 highest for cores and my newly calibrated RealTemp was showing low 50s. Perhaps I don't have enough voltage after all. Thinkin should I raise VTT and give it a go before increasing the VCore?
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temps are not your problem... what is your VTT at now? At 400 FSB 1.275-1.3 should be just fine.
 
Not even close to that much

Previous settings (vcore shows at 1.312 in CPU-Z):
bios1.jpg


New settings that I am testing now (vcore is same, 1.31):
bios2e.jpg
 
giving it a bump to 1.25 or 1.275 and see if it stabilizes wont hurt...
 
phanbuey said:
giving it a bump to 1.25 or 1.275 and see if it stabilizes wont hurt...
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will keep playing with VTT, just letting this linpack test run in the mean time, i wouldn't mind keeping things as low as possible!
 
OCCT_linpack_settings.jpg


Toying around still, but this is where I can pass Linpack testing. The HT voltage is actually my VTT. After this cooler saturates a bit more I do see temps in the 75*C region. This hsa been my 24/7 setting for about two or three weeks since moving into the Raven. All done with Speed Step active too:)

If you need I can run it overnight and get you the 10 hour shot too.
 
10 Hrs at 75C? ... :twitch:
 
why not? The proc wont even throttle till around 100*C. I mean hell I ran 65nm procs at 60-65 and they were rated a ton lower than the 45nm procs.
 
Yeah, I've ran a E6400 & Q6700 at around 80c load when I had air cooling.. you don't have to start worring till you hit the 90's at lease... Those are some hot mother jammers! You'll be able to tell when it's throttling due to heat.. Not that hard to not tell.
 
SUCCESS! With those last BIOS screenshot settings Linpack has been running non-stop since I left with no errors (over an hour and a half). I needed just a tiny bit more juice in the lower end of the system! So happy right now.
 
My e7300 is fine at 3.6 and is 24/7 :D LinPack does make your PC hotter, but OCCT does not run your PC as hot as Intel Burn Test or LinX. It is about 90% as hot. I ran LinX for 500 runs (which is basically running ITB for 500 runs) and it was stable. The thing ran for 16+ hours (I do not remember hot long because it was 2am when it finished and I just shut my PC down). I had max temps of 63C :D
 
Nice, I just woke up and my system is now Linpack stable for nearly 10 hours :D
 
Mine rebooted after a few hours.


Chips were still cool, temps were down. Was watching Star Trek and it just effing reboted last night.



The only thing I can think of is the NB, or the PSU, but 750W of PC Power and Cooling should be enough.
 
Steevo said:
Mine rebooted after a few hours.


Chips were still cool, temps were down. Was watching Star Trek and it just effing reboted last night.



The only thing I can think of is the NB, or the PSU, but 750W of PC Power and Cooling should be enough.
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Nah not PSU. Maybe there's something wrong with the RAM or the RAM settings/stability, or yes you could be missing just a single notch of voltage more. Play with it. I just ran a test all night and all I really needed was .02 more CPU Termination (VTT) voltage.
 
I am running below specs on the RAM voltage for the speed. Will try giving it a bump to 2.1 and see if that fixes it.
 
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