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windows only detecting one core

You need to reinstall windows basically. device manager will see the dual core cpu BUT the HAL is for uni processors. not multiprocessors. you should see this if windows is fully configged for dual core.

 
Jokester said:
You can change that by updating the "driver" though to ACPI Multiprocessor.

Jokester
Click to expand...


It doesn't work all the time though. Windows will display only the uniprocessor HALs since during that install the HAL drivers installed were only for single core cpus. I researched this heavily and went onto the amd forums which confirmed this. I tried it too and it just would not work so I just did a clean install.
 
mrk said:
You need to reinstall windows basically. device manager will see the dual core cpu BUT the HAL is for uni processors. not multiprocessors. you should see this if windows is fully configged for dual core.

Click to expand...

Extreme offtopic :p: What Windows style is that?

Thanks,
Craig.
 
mrk said:
It doesn't work all the time though. Windows will display only the uniprocessor HALs since during that install the HAL drivers installed were only for single core cpus. I researched this heavily and went onto the amd forums which confirmed this. I tried it too and it just would not work so I just did a clean install.
Click to expand...
Not true. There's nothing particularly special about changing HALs. Windows will do it automatically in 95% of cases as soon as it spots SMP capable hardware. If it doesn't it usually means ACPI is turned off in the BIOS.

The AMD forums aren't really the source of good quality information. The same forum goes on about the "advantages" of process affinity too.
 
NathanE said:
Not true. There's nothing particularly special about changing HALs. Windows will do it automatically in 95% of cases as soon as it spots SMP capable hardware. If it doesn't it usually means ACPI is turned off in the BIOS.

The AMD forums aren't really the source of good quality information. The same forum goes on about the "advantages" of process affinity too.
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ACPI is enabled (on by default after cmos reset too), I'm certainly no novice user and I tried everything possible to get xp (year old install) to recognise both cores in task manager and in the "computer" field but nothing worked.

As I said only a reinstall solved the problem. After doing a days worth of google searching various forums this seems to be the recommended solution as well when windows does not automatically enable the MP HAL and it does not let you manually do it.

I even installed the updated MP HAL hotfix from Microsoft but that did nothing either.
 
gerbil47 said:
device manager is reporting ACPI mutiprocessor pc.

looks like im gonna have to do a reinstall lol.
Click to expand...


Try this

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yes, there is always the case that if your device manager says you have that achpi multi thingy, then you might actually have it ok, try fiddling with the task manger, then maybe cpuz might work. Also there is a program called orthos, its like prime95 but for dual core, so i doubt it will work if you dont have dual core on xp, so if it works you know everyting is fine. But if you have done all of this then reinstall, just copy all your important files, its only about an hours job, and thats if you need to even format, try repairing windows that might always work
 
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