P55-GD65 Limited to 2 Cores

[Xplorer4x4]

I have a P55-GD65 running a Core i7 860. HT is working fine but the system only finds 2 cores/4 threads rather then 4 cores/8 threads.

In the bios it is limited to run on 1 core, 2 cores or auto. I have it on auto but none the less, it should be 4 cores.

I hear alot of reference to the pins on this board...should i take the cpu and cooler out and check the pins? I have a foxconn socket.

 

[Svet]

In the bios it is limited to run on 1 core, 2 cores or auto. I have it on auto but none the less, it should be 4 cores.

What's current BIOS version installed?
Do >>Clear CMOS Guide<< with Power cord removed.
Then go to BIOS and "Load BIOS Optimized Defaults", followed by "SAVE AND EXIT"
Re-check.
If problem persist, re-seat the CPU and check/examine the cpu socket for bent pins

 

[Xplorer4x4]

I dont recall the bios version number but i did try to flash to the latest version in hopes of fixing this. Will clear cmos and see what happens.

CMOS/Defaults didnt work, guess ill have to check the seating.

I checked the seating, didnt see anything wrong, reseated it and tried again, still only 2 cores.

EDIT2: Tried reseating again, still no luck.

~! EDIT3:Ok I tried google before coming here, but i was including the mobo in the search. No luck. After I searched "Core i7 2 cores" I found an answer on the Dell forums. I had manually adjusted the boot to run off 4 cores, once i disabled that and rebooted I now have all 4 cores running!