Only one core shown!!!

[i9300]

this being i first post i thought that i would attempt to seek out some help, Cpu-Z shows only one of the cores of my C2D E6550 is functioning. Does anyone have any ideas?

[BigFatCat]

Does windows task manager show one or two cores, likewise the BIOS on post?

If you've swapped a single for a dual core, you MAY need to refresh the windows core to support a second core, usually most successfully by putting the windows CD in when it's running and doing an "upgrade."

[Lee H]

Have you upgraded from single to dual core ?

If so then the following post might be a possible fix

http://forums.hexus.net/hexus-hardwa...ml#post1168523

[directhex]

silly windows and needing a new kernel for SMP

[i9300]

no I started off with this processor for this computer

[i9300]

the task manger sees only one and the bios sees both of them

[i9300]

how do i get a new kernel for SMP (I figure you mean symmetric multiprocessing and not Senior Medicare Patrol)

[Splash]

The traditional way is to reinstall your OS, though this claims it will sort it for you without resorting to that.

[directhex]

i've changed post-install without using silly tools before

[Splash]

i've changed post-install without using silly tools before

In Windows? Without breaking a bajillion other things? Do tell

[Fraz]

i've changed post-install without using silly tools before

Aren't you clever.

[i9300]

Well Silly, might you humor us in telling how you able to do that?

[Aisalem]

Just silly try but if you check you BIOS just to be sure that you didn't disabled second core there.
Because when it's disabled during booting it'll still show 2 cores but OS will see just one.
As I told it might be silly but maybe

[BigFatCat]

I've had limited success with XP and 2003 server when trying to enable a second core after install.

The best way I've had experience of was to boot and log in so windows is running, then insert the OS CD and let it autoplay. Choosing Upgrade from the menu then starts the install process to deploy the SMP HAL but with everything else being left as is. It's a nondestructive install but has always activated the second core of any CPU.

[directhex]

In Windows? Without breaking a bajillion other things? Do tell

the obvious way. right click on the HAL in device manager, update driver, pick frmo the list

[TheAnimus]

the obvious way. right click on the HAL in device manager, update driver, pick frmo the list

I used to frequently do this with my PIII system under windows 2000, as i was playing with the effect it had on the timing of a device driver i was developing. Had no side issues what so ever, its fun not having to compile a new kernel.