Man, I feel like such a novice.
Here’s the story: Two months ago I built a new uber-rig. Among other things, it included an Athlon 64 X2 4200+ and an Asus A8N32-SLI Premium motherboard (BIOS rev. 1009). After it was built and Windows installed I installed the proper drivers for the CPU along with the Cool 'n Quiet drivers. Checked device manager, confirmed two drivers (one for each core) were installed. All well and good.
Now, this evening, while trying to troubleshoot another problem I discovered something shocking: After installing a couple of AMD tools I didn’t have before (CPUInfo and AMD Power Monitor) I learned I was only running on one core! ONE. FREAKIN’. CORE.
Anyone have any idea how I’m supposed to enable the second core? I always assumed it was enabled by default!
Here’s some relevant info (apart from the mobo and CPU info above):
OS: Windows XP Service Pack 2
Drivers/patches: X2 drivers (18.104.22.168), Microsoft AMD 64 X2 Hotfix, Power Monitor, Cool 'n Quiet
For the record:
- There are no BIOS options that have anything to do with dual core processors.
- I’ve scanned the registry but found nothing I could identify as being useful.
- I’ve googled and failed.
Any ideas here?