[SOLVED] why does my 8 core processor only show up as 1 core?

[XzfX]

I have a ryzen 7 2700 8 core processor but it only shows up as one core in the task manager. I have also tried msconfig but it also shows up as 1 and there is no dropdown to change the cores. I have also went to my bios and set the SMT option to auto (there is no enabled). Other third party apps like core temp and cpu z also show i have 1 core and thread. How do i fix this problem?

 

[COLGeek]

What is the make/model of your motherboard?

What does Ryzen Master report?

 

[rickypicky5]

Bring up task manager, select the Performance tab, then select CPU. Right click on the CPU graph and select Change graph to -> Logical processors.

The 'dropdown' is displayed when you right click on the graph.

 

[boju]

Did you recently upgrade to the 2700 on the same Windows install? If Number of processors check box is ticked in msconfig > boot, try unticking it and reboot. If you did upgrade cpu, sometimes Windows limits the cores by checking number of processors itself.