why 8 hrs?

andybenn · 11 Oct 2008 at 14:33

Why 8hrs for prime? why is 8hrs the magic number?

And can you stress your pc more by running prime and calcs of super pi at 32m at the same time?

Would this load it even harder??

Cheers

Pneumonic · 11 Oct 2008 at 19:19

no idea why it is 8 hours... I am guess because thats around 1 cycle of prime small ffts at a lowish clock.. as long as it passes a cycle I would say thats fine..

If you really want to stress then I would run Intel Burn Test and then follow it up with F@H or something similar..

Tuvoc · 11 Oct 2008 at 19:20

For me, 12 hrs is the magic number

It is a matter of personal choice.
Preceded by some runs of IntelBurnTester (only runs if you have an Intel CPU....)

Mr Paul · 11 Oct 2008 at 22:42

The new 1.7 version also runs on AMD's

Tuvoc · 11 Oct 2008 at 23:03

Mr Paul said:
The new 1.7 version also runs on AMD's

Excellent !

andybenn · 12 Oct 2008 at 12:26

You guys are ace!

Ran that tool and it passed everytime @3.4ghz on my q6600 fails at 3.5ghz
so now i'm happy that i'm stable.

not going to try to push it any further not risking voltages etc, as for temps...
3.5 got to 67 peak on a small water cooling setup and 61c @ 3.4 so it's all lovely

prime would hit 50c so it def hits it harder.

Thanks guys

pjansell · 12 Oct 2008 at 21:07

I've had prime fail after 16 - i try to aim for 24, is that stable ? It's anyones guess.

LewisStuart · 12 Oct 2008 at 21:27

Prime can be stable for months ...until you put the central heating on

platinum87 · 13 Oct 2008 at 04:19

i get 3.8ghz, and not change any settings from 3.6ghz, prime fails within 1 minute but i can run everything else without any crashes at any time..

i only bother with 1 hour of prime, if it doesnt crash, its not going to 99% of the time

Banny · 13 Oct 2008 at 09:50

LewisStuart said:
Prime can be stable for months ...until you put the central heating on

Use Prime and that is central heating

Kelt · 13 Oct 2008 at 12:10

andybenn said:
You guys are ace!

Ran that tool and it passed everytime @3.4ghz on my q6600 fails at 3.5ghz
so now i'm happy that i'm stable.

not going to try to push it any further not risking voltages etc, as for temps...
3.5 got to 67 peak on a small water cooling setup and 61c @ 3.4 so it's all lovely prime would hit 50c so it def hits it harder.

Thanks guys

Other people here, and myself, will tell you that IB cannot be trusted as a stability tester. I used it, my system passed, only to fail after a Prime95 test. Don't use it any more.

Azza · 13 Oct 2008 at 12:15

andybenn said:
Why 8hrs for prime? why is 8hrs the magic number?

Because Easyrider says so.

Tuvoc · 13 Oct 2008 at 13:22

KelticDaz said:
Other people here, and myself, will tell you that IB cannot be trusted as a stability tester. I used it, my system passed, only to fail after a Prime95 test. Don't use it any more.

I use IB first and then follow up with Prime95.
IB just saves time in the whole process by picking up errors very quickly - my brief experience anyway. I wouldn't rely on it by itself

Netvyper · 13 Oct 2008 at 15:08

andybenn said:
Why 8hrs for prime? why is 8hrs the magic number?

And can you stress your pc more by running prime and calcs of super pi at 32m at the same time?

Would this load it even harder??

Cheers

Because I sleep for ~ 8hrs

Bennie-Mac · 13 Oct 2008 at 17:11

Netvyper said:
Because I sleep for ~ 8hrs

You mean you can leave the computer while doing it?? Those were the most boring 8 hours of my life!