AMD Turion 64 x2 - Only 1 Core Working

I have an HP Pavilion dv2000 laptop with a AMD Turion 64 x2 processor. I used to have Windows XP Home and then I installed Windows 7 beta. CPU-Z is showing only one core and thread. Device manager shows "ACPI x64 - based pc" under Computer. Under processors it shows "AMD Turion(tm) 64" and that's it.

I have tried checking msconfig and looking in advanced options. I can only select 1 processor after I check "Number of Processors". I have also tried checking "Detect HAL". I have gone into setup at post and see no "switch" for ACPI or anyting like that.

I have also tried installing the chipset drivers and BIOS from HP's support website. Still no luck.

Any help or ideas would be greatly appreciated :)

Edit: Some Screens

Hmmm...

I downloaded the drivers from HP
Select software and drivers

Is there a way to find the correct drivers?

Checked the BIOS
Bios says "AMD Turion(tm) 64"
It gives a System Board ID of 30B5
Serial #: 2CE7190XJV

Found this info:
1.6 GHz AMD Turion ™ 64 X2 Dual-Core Mobile Technology TL-52
http://h10025.www1.hp.com/ewfrf/wc/d...roduct=3370091

oh I was under the impression that turion 64 x2 meant dual core processor. Oh well I learned something new.Thanks for everyone's help!

Edit: http://h10025.www1.hp.com/ewfrf/wc/d...roduct=3370091
How come it says it's a dual core?

calicheese23 said:

I have an HP Pavilion dv2000 laptop with a AMD Turion 64 x2 processor. I used to have Windows XP Home and then I installed Windows 7 beta. CPU-Z is showing only one core and thread. Device manager shows "ACPI x64 - based pc" under Computer. Under processors it shows "AMD Turion(tm) 64" and that's it.

I have tried checking msconfig and looking in advanced options. I can only select 1 processor after I check "Number of Processors". I have also tried checking "Detect HAL". I have gone into setup at post and see no "switch" for ACPI or anyting like that.

I have also tried installing the chipset drivers and BIOS from HP's support website. Still no luck.

Any help or ideas would be greatly appreciated :)

Edit: Some Screens

Check your power management settings. I have the same processor and it reports both cores working using CPU meter. But i do remember some power settings that will "step" the CPU down to one core for power savings in certain situations or if the settings are off. You go into the power options, change plan settings,
then select CHange ADVANCED power settings. In there you will see the power management settings for the processor.
jarsong

calicheese23 said:

oh I was under the impression that turion 64 x2 meant dual core processor. Oh well I learned something new.Thanks for everyone's help!

Edit: Product Specifications
How come it says it's a dual core?

The x2 is a dual core. You don't have an x2. Look at the link mentioned above: List of AMD Turion microprocessors - Wikipedia, the free encyclopedia

You will find your processor listed under the single-core section

Now if you bought this computer thinking it had an x2 in it or at least, that is what it shows on the invoice/receipt then I would take it back.

Ya I guess looking at mine its a AMD Turion 64 x2 Mobile TL-60 2.00GHz... I show both cores processing...

So my computer is suposed to have this
Product Specifications*
"1.6 GHz AMD Turion ™ 64 X2 Dual-Core Mobile Technology TL-52"

The HP DV2315nr is my model.

CPUZ shows the MK-36.

So that means HP shipped my computer with the wrong processor right?

I contacted HP and they said my processor is suposed to be the dual-core and I told them that is reading as a single core model they transfered me to a higher up (4 different people before I got there) and he said it is a "hardware failure" possibly and it will cost me $300 to have HP Fix it because I am no longer under waranty. I argued that they sent the wrong processor with my computer and he was not convinced.

I should have a dual-core. My manual, and the stickers on my laptop, all say AMD Dual Core TL-50.

I live 6hrs away from the Best Buy I bought it at and it looks like I'm gonna have to ship it down to my parents to take it in.

Am I wrong in assuming that HP sent me the wrong processor from the beginning?

Also I did buy this laptop in Aug 2007. I never noticed to check at the cores until I learned photshop can utilze the two cores.

Edit: I did a clean install of Windows 7 and no luck. Still reports the MK-36. Then I put in HP recovery CD to reinstall to factory settings (Windows Vista Home Premium) and still the same thing.