The {Home versions} of XP 32 bit Vista or Win 7 32\64 bit does not support any mother board that has two CPU,s the Home version will only see 1 CPU you can find more info here http://forums.macrumors.com/archive/index.php/t-812397.html if i read this right you have to use a Pro version up to Ultimate or Enterprise OS for it to see 2 CPU,s or more, the cores does not count as a CPU .
C3PO5
2 Intern
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2.7K Posts
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February 16th, 2010 15:00
Hi
The {Home versions} of XP 32 bit Vista or Win 7 32\64 bit does not support any mother board that has two CPU,s the Home version will only see 1 CPU you can find more info here http://forums.macrumors.com/archive/index.php/t-812397.html if i read this right you have to use a Pro version up to Ultimate or Enterprise OS for it to see 2 CPU,s or more, the cores does not count as a CPU .
Edit heres another good link . http://blogs.zdnet.com/Bott/?p=130&tag=rbxccnbzd1 .
Good Luck
msgale
2 Intern
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2.5K Posts
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February 16th, 2010 21:00
Currently I am running Windows 7 Ultimate (x64) on A PWS 7400. Dual XEON E5405 procesors, each having 4 cores for a total of 8 cores, running.
Pixiegirl19
121 Posts
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March 10th, 2010 19:00
I concur, you MUST have x64 Pro XP or Pro x64 or better for Vista & Windows 7 to see dual cores
Dagra