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Only single processor in a dual processor system working

I'm running an AMD 4600 dual processor on an ASUS M2N-SLI Deluxe mother board when I first put this together it was working fine but I lost a hard drive and had to install a back of my system. Now device manger only shows a standard pc under computer where as it use to say ACPI Multi processor or something like that .
All of my utilities show only one processor. How can I get the other processor online
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cwking
Asked:
cwking
1 Solution
 
Cro0707Commented:
Open Taks manager and go to processes, right click on processes and choose "Set affinity..."

Also, be sure that you have installed CPU driver. It sound like a joke, but new CPU use driver : )

Adio!
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Alan Huseyin KayahanCommented:
   Hi cwking  
      Make sure the related technology (HT-Hyper Threading for example) is enabled in BIOS

Regards
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cwkingAuthor Commented:
Went to task manager but found no indication for affinity
Also checked manual and bios and found no indication for hyper threading
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PUNKYCommented:
After OS installation, have you installed drivers for your motherboard? Also, try reset bios.
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johnb6767Commented:
Was this backup created originally on this setup? You could be using the wrong Kernel, and are using a single CPU Kernel, instead of a Multiple propcessor kernel.

Look in the device manager under Computer>ACPI Multiprocessor PC>Driver>Driver Details...What files are listed?
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cwkingAuthor Commented:
I made the backup a few days prior to reloading thus it was made when everything worked fine.
At present I don't have an entry for ACPI Multiprocessor there was one but when I couldn;t get the driver for this to load I uninstalled it now I can't get it back
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johnb6767Commented:
I would suggest a reinstall upgrade for XP, to fix that little issue, and then verify it is using a Multi processor Kernel....
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johnb6767Commented:
How to Perform a Windows XP Repair Install
http://www.michaelstevenstech.com/XPrepairinstall.htm
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cwkingAuthor Commented:
Looks like I have no option but to do a clean install as repair is not an option I tried the reinstall thing but as I said repair is not an available option I then tried to upgrade to media centre and that did not fix the problem so all thats left is a clean install and hope that my backup can restore all the data and files I have saved
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johnb6767Commented:
Depending on how you backed up your files, you might need to take ownership of them to retrieve them back to the new install.

How to take ownership of a file or folder in Windows XP
http://support.microsoft.com/kb/308421
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johnb6767Commented:
Actually, in start>run>msconfig.exe>boot.ini tab>advanced options....

Check the box next to "/NUMPROC=" and set it to 2. Then reboot,and see if it helps. I know you can force it to see 1, on a reboot from 2...Not sure of the other way around though
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