I've got a p4-2.8GHz, w/ 1024mb of RAM, SATA drives, RAID 1, that I'm setting it up as an Exchange 2003 and Server 2003 Domain Controller. After spending the better part of an evening cursing at setup because it would only detect as "Standard PC", I finally found out you have to hit F5 to specify "ACPI Multiprocessor PC." So that's all set up now.
HOWEVER: I'm still only seeing one processor in performance monitor. With hyperthreading enabled, the system runs like a dog. If I disable hyperthreading in BIOS, it runs better, but still slower than I think it should. Boot time is in the 5 minute range with Exchange installed, shutdown is worse, and Outlook Web access runs REALLY slow.
I need to get this server deployed ASAP, so I'm setting the points to max.
Can anyone toss some wisdom at me?