wwwdjrcs said:
It wasn't really a suggestion out of functionality, but the CPU is a major change. I would at least re-run an ACPI Multi-Processor driver installation, just to ensure everything gets detected smoothly.
Going to a higher clocked CPU on the same mobo, is no big change, and I wouldn't recommend reinstalling the OS for this in the main...
As to what Sazar has indicated/run into, this isn't quite the same thing. Sazar went from a uni-core A-64 to an X2, which uses dual cores. Rather then simply going to a higher clocked CPU, this is going from a uni-proc (where winNT/2k/XP uses a uni-processor hardware abstraction layer), to a dual proc setup, where a different HAL is used. If one were to run winNT or 2k, which still shows the text mode part of the boot, one would see
on the bluescreen part of boot, or reference to multi-processor. This is because the installer loads a different HAL, depending on whether one has 1 CPU or more then 1. An X2, is seen by the OS as 2 CPUs, and hence needs the multi-proc HAL... That's why he saw what he did.
http://support.microsoft.com/?id=309283
Windows XP Device Manager and Windows Server 2003 Device Manager list limited choices for changing your HAL type when you click Update Driver. Unsupported options are not available. Microsoft Windows 2000 Device Manager lets you select any HAL type. If you select an incorrect HAL, you may not be able to start Windows 2000, or you may have other issues.
When you install the following HALs on a Windows XP-based or Windows Server 2003-based computer, the following device manager HAL options appear:
Latter on, they go to mention different hardware abstraction layers present, with different entries for uni-processor, and multi-processor... This is something I had noticed back in NT 4 days, as unlike winXP, this part of boot wasn't eliminated, in favor of a GUI image only... It is good to understand why, one can have this issue.
If one were to go from one uni-proc to another uni-proc of a different clock, this would not be an issue. If one were to go from an X2 4200+ to an X2 4600+ this would not be an issue, as one would have the correct HAL (be it uni-proc or multi-proc) already installed.