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Windows 7: AMD Phenom II x 6 1090 shows only 5 cores ! Why ?


16 Jul 2010   #1

Win 7
 
 
AMD Phenom II x 6 1090 shows only 5 cores ! Why ?

I have recently (last month ) acquired an assembled computer

Its Configuration

AMD Phenom(tm) II X6 1090T Processor
ASUS M4A89GTD-PRO/USB3
8 Gb Corsair DDR-3 RAM
BIOS American Megatrends Inc Ver 1005 Date 03/08/2010
Graphics ATI Radeon HD 4290
Seagate ST310005 28AS SATA HDD

Now this is a six core processor right ? Why then does my task manager show only 5 cores?



My System SpecsSystem Spec
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16 Jul 2010   #2

Windows 7 Ultimate 32-Bit (x86)
 
 

Maybe the task manager window is too small to show 6 cores? Have you tried making the window larger?
My System SpecsSystem Spec
16 Jul 2010   #3

Win 7
 
 

Quote   Quote: Originally Posted by isaaclopez View Post
Maybe the task manager window is too small to show 6 cores? Have you tried making the window larger?
I have 22 inch display. Window size is not the problem
My System SpecsSystem Spec
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16 Jul 2010   #4

Windows 8.1 Pro w/Media Center 64bit, Windows 7 HP 64bit
 
 

Go to Control Panel/Device Manager/Processors and see what shows up.

Jim
My System SpecsSystem Spec
16 Jul 2010   #5

Win 7
 
 

Quote   Quote: Originally Posted by Phone Man View Post
Go to Control Panel/Device Manager/Processors and see what shows up.

Jim
This is what shows up on Device manager

My System SpecsSystem Spec
16 Jul 2010   #6

Windows 7 Ultimate x64
 
 

Seems like your processor is defective and it's only running on 5 of the cores. You might need to contact AMD or your supplier for assistance with this issue or get the chip RMA'd.
My System SpecsSystem Spec
17 Jul 2010   #7

Win 7
 
 

Okay I found a solution to my problem. CPU configuration in the BIOS allows you to enable ALL or 1 thru 6 of the cores. It was that simple.

My System SpecsSystem Spec
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 AMD Phenom II x 6 1090 shows only 5 cores ! Why ?




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