Upgrade CPU without reinstalling Windows Server 2003?
Posted on 2003-11-24
I had a smooth installation of Windows Server 2003 going on an older 700MHz Athlon-based server. Over the weekend I swapped out everything in the box except for the boot drive (let's call it C:). The new CPU is a P4 with Hyper-Threading and all is well. The Device Manager shows all devices operating properly including all the new motherboard resources. But...
Unlike my other computers with HT that show two "CPU's" in the Task Manager, Performance tab, this Windows Server 2003 only shows one. I tried setting NUMBER_OF_PROCESSORS=2 in the environment and in the registry, but it won't stick.
Am I being naive to think I can change mobo+CPU without doing a new installation of Windows Server 2003?
It seems to be working great except for this one thing. I have HT [enable] in the BIOS, by the way.
PROCESSOR_IDENTIFIER=x86 Family 15 Model 2 Stepping 7, GenuineIntel