P5N-T Deluxe and Q9300

maslaten · June 1st, 2008, 06:01 PM

Can someone explain to me why I can only see 1 core in my Q9300?

Unixlord · June 1st, 2008, 06:14 PM

Is this a fresh installation of windows we're talking about? Did you upgrade or is this a new rig? More info mate.

**Regeneration** · June 1st, 2008, 06:38 PM

Sounds like you forgot to reinstall the OS and its using the ACPI Single CPU layer.

IModIntel · June 1st, 2008, 06:39 PM

Had same problem with my mom's boyfriend's computer. He was using E4600 and a fresh install of Windows fixed the problem. I don't think there is any other way to fix it, but when you do a major upgrade like that you reinstall your OS anyways.

maslaten · June 1st, 2008, 07:12 PM

This is a new build new OS install (Vista x64 HP) System as follows:
Asus P5N_T Deluxe Rev1.02 Bios 1001
Intel Q9300 2.5Ghz currently OCed@ 3.19Ghz
TR Ultra 120 Extreme HS (Lapped)
OCZ Reaper HPC PC 8500 Dual Channel 1066Mhz @ 531Mhz x2
Nvidia GeForce 8600GTS x2 SLI Mode

maslaten · June 1st, 2008, 07:13 PM

sounds like maybe a bad install

**Regeneration** · June 1st, 2008, 07:23 PM

Make sure you're using the latest BIOS build for your motherboard.

maslaten · June 1st, 2008, 07:33 PM

Quote:

Originally Posted by Regeneration

Make sure you're using the latest BIOS build for your motherboard.

Yes it is the latest bios

**Regeneration** · June 1st, 2008, 07:51 PM

Check out your BIOS settings then, maybe something is wrong there.

maslaten · June 1st, 2008, 07:58 PM

went through everything in bios saw nothing to lead me to believe that cores could be enabled/disabled

I have have found the solution: I enabled hyper-threading technology and spread spectrum control and that cured the issue. Happily running my Q9300 2.5Ghz @ 3.19Gghz stable.