ryzen Ryzen 7 1700x only showing half of itself in Windows. HELP!

[Luckdragon82]

HELP! I am having a very odd issue with my AMD Ryzen 7 1700x on a Gigabyte AX370-Gaming 5 motherboard.

After some extensive overclocking, I suddenly had issues with getting the Gigabyte App Center CIV app to work properly. No matter how many times I wiped and re-installed the software, I couldn't get it to control the fans anymore. So I decided to re-install Windows 10 Pro to see if it would fix the problem. This didn't fix the issue, but now I'm having a far worse problem. Even though "Device Manager" shows I have all 16 threads visible and working properly, Going into "Task Manager" and selecting "Performance" shows I have literally half of my processor available. Even CPU-Z shows I have 4-cores and 8-threads. It's even showing I only have HALF of my cache! Has anyone else had this issue, or is this possibly the sign my CPU has died (praying to Bob it's not a dead CPU)?

[The Sloth]

go to your BIOS to see if you have SMP enabled. 

[Jarno.]

like nerdslayer1 already said, check SMT in bios or you might have cores disabled.

[skullbringer]

12 minutes ago, Luckdragon82 said:

HELP! I am having a very odd issue with my AMD Ryzen 7 1700x on a Gigabyte AX370-Gaming 5 motherboard.

After some extensive overclocking, I suddenly had issues with getting the Gigabyte App Center CIV app to work properly. No matter how many times I wiped and re-installed the software, I couldn't get it to control the fans anymore. So I decided to re-install Windows 10 Pro to see if it would fix the problem. This didn't fix the issue, but now I'm having a far worse problem. Even though "Device Manager" shows I have all 16 threads visible and working properly, Going into "Task Manager" and selecting "Performance" shows I have literally half of my processor available. Even CPU-Z shows I have 4-cores and 8-threads. It's even showing I only have HALF of my cache! Has anyone else had this issue, or is this possibly the sign my CPU has died (praying to Bob it's not a dead CPU)?

 

 

 

 

since device manager shows all 16 active threads, the cpu and the bios are not your problem. 

 

the issue is probably an old windows install that is based on your old 4 core, 8 thread cpu which your windows install is "used to". for windows to use all of your cores after the upgrade, you will either need to fiddle with windows startup options, see https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/howto-get-windows-7-to-detect-your-new-multi-core/71519d51-f6cb-47df-b3ff-66c2928d6de4

or do a reinstall.

[19_blackie_73]

8 minutes ago, nerdslayer1 said:

go to your BIOS to see if you have SMP enabled. 

this first

7 minutes ago, Jarno. said:

or you might have cores disabled.

doesn't have to be, i remember a case where you needed to type some line into the command prompt to get all cores back, but i dunno how this worked, as it was a bit long ago.

[Luckdragon82]

8 minutes ago, nerdslayer1 said:

go to your BIOS to see if you have SMP enabled. 

Just checked, but there's no option to turn SMT on or off.

[Fraser Cow]

You could try booting from a Linux USB to determine if the problem is with windows and not the CPU or motherboard.

[The Sloth]

5 minutes ago, Luckdragon82 said:

Just checked, but there's no option to turn SMT on or off.

look again 

download all the latest Ryzen drivers especially mobo make sure you are on the latest version 

[Luckdragon82]

Currently what it's reading.

I did try the EasyBCD, but it locks up once I've tried saving the settings.

[Luckdragon82]

35 minutes ago, skullbringer said:

 

since device manager shows all 16 active threads, the cpu and the bios are not your problem. 

 

the issue is probably an old windows install that is based on your old 4 core, 8 thread cpu which your windows install is "used to". for windows to use all of your cores after the upgrade, you will either need to fiddle with windows startup options, see https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/howto-get-windows-7-to-detect-your-new-multi-core/71519d51-f6cb-47df-b3ff-66c2928d6de4

or do a reinstall.

We're back in business! I had to interpret the directions as the software mentioned had changed a bit since Win7. Thanks for all the help, everyone!

[Be Healed in Jesus Name!]

How did you fix this issue?