Please remind me

[Alta_Rica]

How to update Windows to recognise it is now running on a dual-core instead of single core CPU. It is Windows XP Pro I am talking about.

[DoubleTop]

Device manager> Computer something along the lines of update from there from the Uniprocessor PC to Multiprocessor PC.

@MSDN

Installing Support for Multiple CPUs

1. Click Start, point to Settings, point to Control Panel, and then click System.
2. Click the Hardware tab, and then click Device Manager.
3. Double-click to expand the Computer branch. Note the type of support that you currently have.
4. Double-click the computer type that is listed under the Computer branch, click the Drivers tab, click Update Driver, and then click Next.
5. Click Display a list of known drivers for this device, and then click Show all hardware of this device class.
6. Click the appropriate computer type (do not change from non-ACPI to ACPI computer types), click Next, and then click Finish.

DT.

[Mulda]

Odd you should ask that Alta as I plan on performing the same ‘maintenance’ on one of my PCs tonight as well :Plot:

[DoubleTop]

/me considers renaming this to the Stooges fight back thread :chuckle:

DT.

[Mulda]

Hmmmm…

Oddest thing happened last night that I’ve never seen before. Now I’ve performed said procedure quite a number of times, but I changed the order a little - normally I perform the driver upgrade, shut down, fit additional/replacement CPU and power back on.

Last night the PC was already off so I fitted the CPU and booted up to perform the driver upgrade only to be greeted with the ‘new hardware found’ baloon telling me it had found an ACPI Multiprocessor PC and a 2nd CPU - bonus!

Just as an aside, I have performed said upgrade in that manner previously but always had to perform the upgrade manually.