Prime95 x 2

Challenger

Diamond Member
Jan 29, 2001
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How do I get two instances of Prime95 to run at the same time to test Hyperthreading on a P4 2.4c?
 

MDE

Lifer
Jul 17, 2003
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Make two different P95 folders and start each one up separately.

EDIT: Ignore the feeble Athlon user (me) and heed the oldfart's advice.
 

oldfart

Lifer
Dec 2, 1999
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Start the first normally, the start the 2nd from the run dialog with an -a1 added. Like so:

D:\programs\p95v236\PRIME95.EXE -a1
 

Challenger

Diamond Member
Jan 29, 2001
3,044
51
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Originally posted by: oldfart
Start the first normally, the start the 2nd from the run dialog with an -a1 added. Like so:

D:\programs\p95v236\PRIME95.EXE -a1

I open the first one normally but it won't start a second one that way. I get a "Windows can't find" box. I'm confused :confused:
 

oldfart

Lifer
Dec 2, 1999
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That was an example. Is your installation path different? Use the browse button. find the prime95.exe and then add the -a1 to the run command.
 

MDE

Lifer
Jul 17, 2003
13,199
1
81
You could just make another shortcut to P95. Right-click the shortcut, then Properties, and in the "Start in" box after the quotes put the -a1 in.
 

Challenger

Diamond Member
Jan 29, 2001
3,044
51
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Originally posted by: oldfart
That was an example. Is your installation path different? Use the browse button. find the prime95.exe and then add the -a1 to the run command.

This is what I get for the target when I right click on the icon in the target box: "C:\Program Files\Prime95\Prime95.exe"



I have omited the quotes on both ends of the target and added the -a1 with and without a space and I have used the quotes as well.
 

Slammy1

Platinum Member
Apr 8, 2003
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Also cut the free memory in half for each instance, or else you'll get system hangs (sometimes really long) as it writes to the swap file. I also like to run 3dMark03 when I start and when I end (with one instance) just to mix things up a bit.
 

Challenger

Diamond Member
Jan 29, 2001
3,044
51
91
I got it! Both suggestions work, I just needed to put a space in betweeen the quotation mark then the -a1 ;) Thanks guys :D