CPU stressing

iBot · 7 Oct 2006 at 16:01

whats the best way to stress the cpu and is likely to make it fail if it isnt stable

wizardmaxx · 7 Oct 2006 at 16:02

Prime

welshtom · 7 Oct 2006 at 16:13

orthos prime for dual cores

Hamoodii · 7 Oct 2006 at 17:37

Prime95
OCCT
SuperPI 32MB test

welshtom · 7 Oct 2006 at 17:38

32mb super pi is not a good stability test. its a stability indicator at best.

prime95 is the old version of SP2004 which is the old version of Orthos prime

Big.Wayne · 7 Oct 2006 at 17:52

Orthos is good for native dual core cpus, also you can run two instances of Prime95, that really picks up any errors!

I used dual-prime for everything until I got a copy of Orthos, but that doesn't work properly on an INTEL P4 with HT (buggy!) so for these older cpus I still use dual prime.

When I really wanna test a dual core I quad prime!

Cyber-Mav · 7 Oct 2006 at 18:32

snm is by far the best tester.

http://testmem.tz.ru/snm.htm

scroll to the bottom of that web page and have a look at the table.

prime at its best can stress the cpu to only 78% of its maximum tdp.

snm will max it out completley.

Durzel · 7 Oct 2006 at 23:08

Cyber-Mav said:
snm is by far the best tester.

http://testmem.tz.ru/snm.htm

scroll to the bottom of that web page and have a look at the table.

prime at its best can stress the cpu to only 78% of its maximum tdp.

snm will max it out completley.

Rubbish, sorry.

A program that just heats up the CPU doesn't prove its stable one way or the other. Intels own TAT heats up the CPU more than Prime does on my system, but it doesn't test anything so what's the point? Prime (ORTHOS on dual cores) tests actual mathematical calculations which, if wrong, would cause any number of hard-to-pinpoint errors like random crashes, hard disk corruption, etc.

Dual Prime will push your system heat/load wise beyond anything it will see playing games, so that's as far as it needs to be taken.