Incorrect ACPI Advanced Computer Power Interface and HAL Hardware Abstraction Layer

[neoglow]

Hey up all,

I just ran CPU-Z in Windows XP 32bit on a Multicore processor PC and noticed it said 1 Core and 1 Thread at the bottom.

The CPU is a Intel Core 2 Duo E6600 so it should be showing 2 Cores surely?

Did some poking around on the net and checked the 'Computer' configuration in Device Manager and its listed as an Advanced Configuration and Power Interface (ACPI) PC.

Am I right in thinking it should be showing as a ACPI Multiprocessor PC or MPS Multiprocessor PC?

Task Manager is also only showing 1 CPU Usage History and not 2.

Does this mean the wrong HAL (Hardware Abstraction Layer) has been implemented into the XP install?

Ive read that you shouldnt/cant change the ACPI in Device Manager without running into problems and its best to do a fresh install of XP.

My question is this thou, even thou XP and indeed CPU-Z are reporting the CPU as only having 1 core when there is infact 2 as per the BIOS settings, does this mean XP is only utilising 1 core and not 2?

AKA, is this computers CPU performance in effect halved as only 1 core is being used?

Thanks for reading and any help would be much appreciated.

 

[neoglow]

Anyone?

 

[neoglow]

Lol, no one. Bump!

 

[neoglow]

You may need to upgrade the HAL from uni to multi HAL.

In Task Manager > Performance

Do you see one core or two cores there?

I only see 1 core and this is the problem. Can you force a new HAL or is a fresh install of XP required?

I dont want to try and force a new HAL in device manager only to reset and get a BSOD.

 

[neoglow]

Thats the thing, you won't get a BSOD. You can force a new HAL it's just an update. Find your latest processor drivers then do an update.

OK, cool, I'll give it a shot. Fingers crossed.