Xeon 5650 running on 2 cores 4 threads

[Brandon316]

I checked the bios and it says all cores should be running, hyperthreading is enabled and I'm not sure why the CPU is still running on 2 cores out of 6.
BIOS version is FH, I didn't mess with the bios I just got the PC and not sure what is the issue.

My specs:
CPU cooler - Corsair H75
CPU - Xeon x5650
MOBO - gigabyte x58a-ud3r

Full specs:
https://valid.x86.fr/1kr6r0

 

[asoroka]

I don't see that your CPU is listed in the compatibility guide.

https://www.gigabyte.com/au/Motherboard/GA-X58A-UD3R-rev-20#support-cpu

What is the Motherboard Revision number.

Has this ever worked, where did you get the PC from

 

[william p]

Did you get the latest BIOS? early X58 LGA1366 was 4 core Nehalem 45nm. The 32nm 4 and 6 core Westmerl came later. Most boards will run them with a BIOS update.
I see them running here.X5650 with OC at the top of the chart. But Revision might matter.
http://www.userbenchmark.com/System/Gigabyte-GA-X58A-UD3R/3127

 

[Brandon316]

Thanks for attempting to help me, I panicked and thought I wasted money on this mobo and CPU.
I googled the issue and I've seen that some people suggested to update windows, and that's what I did - it works just fine, 6 cores 12 threads.

Screenshots:
https://valid.x86.fr/neh7tk
https://imgur.com/a/9nytNte


This is the link where I updated windows from:
https://answers.microsoft.com/en-us/windows/forum/windows_10-windows_install-winpc/how-to-perform-a-repair-upgrade-using-the-windows/35160fbe-9352-4e70-9887-f40096ec3085

 

[william p]

Do you have a 3 channel RAM configuration? That a big feature of X58. That means sets of 3 matching modules, not 3 sets of 2. Glad to hear you got it going.

 

[Brandon316]

Do you have a 3 channel RAM configuration? That a big feature of X58. That means sets of 3 matching modules, not 3 sets of 2. Glad to hear you got it going.

At first, I installed only 8 ram in 2 slots, so 4 each, I think it had nothing to do with the problem tbh.
I'm glad I posted it here, someone else might find this useful.

Do you have a clue what is the idle temps for that CPU?

 

[william p]

Nothing to do with the problem. It just something a lot of people miss on that platform. Another 4GB module will get you 3 channel. It will run with all kinds of substandard RAM configurations. But 3x4GB, and 3X8GB are the best.

 

[Brandon316]

Nothing to do with the problem. It just something a lot of people miss on that platform. Another 4GB module will get you 3 channel. It will run with all kinds of substandard RAM configurations. But 3x4GB, and 3X8GB are the best.

I'm running it 3x4GB, that's what I had already.
Can you help me, I ran into a problem, I don't know where to plug the front audio thingy to the motherboard I just can't seem to find it.

 

[william p]

I'm afraid my LGA1366 experience is all Delllworkstations.
It should be in here somewhere.
http://download.gigabyte.us/FileList/Manual/mb_manual_ga-x58a-ud3r_v2.0_e.pdf

 

[Brandon316]

I'm afraid my LGA1366 experience is all Delllworkstations.
It should be in here somewhere.
http://download.gigabyte.us/FileList/Manual/mb_manual_ga-x58a-ud3r_v2.0_e.pdf

Dunno, not working.

I have HD Audio and AC 97 cables, not sure where to plug one of them into the mobo - first PC build tbh.
It's for the front headphone plug.

 

[william p]

It might only have audio out the rear. Or only SPDIF digitaL on the MB. I'm so used tro dells having a single ribbon cable for everything I don't know. Try posting another question for that issue. I'm sure somebody here will know. It just won't be me.