Troubleshooting CPU/Memory results varying drastically

[dougbc]

I'm trying to understand how my system went from perfectly fine to incredibly slow, in the span of one reboot. Rather than anything failing/crashing outright, everything is just extremely slow.

I initially thought it was a video card issue, since I first noticed the slow down during some gaming. But in all the PT10 testing I have done, I was finding that the CPU and memory tests were varying with every run. I eventually pulled the video card and did the same tests only using the integrated board vid, and found the same results.

I was also considering if it was a malware issue, and did a fresh install of Win10 (and then later Win11) with same results.



Finally, I switched over to Ubuntu and did some more CPU/memory runs to see. Here is a chart of the summaries for ten tests.



At this point, I'm trying to determine where my machine is falling down. Without a failure to focus on, I don't know if I'm looking at board, CPU, power?

System Info:
CPU Type: Intel Core i9-9900K @ 3.60GHz
Number of CPUs: 1
Cores per CPU: 8
Hyperthreading: Enabled
Motherboard: Z390 GAMING X-CF
Memory: 32GB Kingston Unknown
Videocard: NVIDIA GeForce RTX 2070 SUPER
Hard Drive: WDS500G3X0C-00SJG0 (500GB)

Any thoughts would be appreciated.

Thanks

-dc

[dougbc]

Resolved. CPU cooler failed, CPU was cooking.

Replaced AIO cooler and life is back to normal.

[David (PassMark)]

Always nice to hear about the solution and not just the problem