Running Prime95 on dual core CPU.

dagwoood · 6 Aug 2006 at 03:54

Because I have a compatibility issue running memtest(long story, but basically I always get errors running memtest, even at stock speeds with different memory/motherboard/CPU/PSU), I've been mainly reliant on the Prime Blend test to test for memory errors.

Now as you can't run 2 instances of the Prime Blend test at the same time, would running Blend on one core, and either of the CPU intensive tests on the other core, be an effective memory stability test?

Cheers, dagwoood.

Rob43 · 6 Aug 2006 at 10:13

Just run SP2004,you can have two running at the same time

Enabling you to test both cores at the same time

Rob

Jokester · 6 Aug 2006 at 10:14

Does SP2004 make use of more recent versions of Prime, it used to be the case that it didn't fully stress A64s?

Jokester

Kesnel · 6 Aug 2006 at 10:19

v0.4 and above including the Orthos edition use the latest Prime version 24.14.

OC_A64 · 6 Aug 2006 at 10:27

New version of SP2004 will load 2 cores (maybe more, not sure) via a single instance

Rob43 · 6 Aug 2006 at 10:28

Here's a link from DFI street to get prime 95 running in dual core

http://www.dfi-street.com/forum/showthread.php?t=16446

The Asgard · 6 Aug 2006 at 10:30

Use 2 copies of Prime 95 in seperate folders and set affinity to each core. SP2004 is not that good for stability had this running OK where prime would fail.

dagwoood · 6 Aug 2006 at 11:45

Thanks for the feedback guys

I knew how to run Prime by running from different directories and setting the affinity, but I basically wanted to run blend on both cores but it wont let you.

After reading Rob43's link, I hadn't noticed there's a custom option in Prime95

; so now I can set each instance to use a specific amount of RAM.

What I can't understand is, why isn't SP2004 considered as rigorous as Prime95 at finding problems when they're both based on the same code

OC_A64 · 6 Aug 2006 at 12:00

dagwoood said:
T
What I can't understand is, why isn't SP2004 considered as rigorous as Prime95 at finding problems when they're both based on the same code

Should be no difference. All down to personal preference.

The Asgard · 6 Aug 2006 at 12:30

dagwoood said:
What I can't understand is, why isn't SP2004 considered as rigorous as Prime95 at finding problems when they're both based on the same code

Totally agree but there does seem to be a difference

dagwoood · 6 Aug 2006 at 15:02

Thanks for the replies guys; it does seem strange.

I'm going to use Prime95 and manually set how much RAM each instance can use.

Thanks everyone for the advice :cool:

Jokester · 6 Aug 2006 at 15:06

I would imagine that Prime is more harsh purely down to the overhead of the additional GUI that SP2004 has.

Jokester