Device issues detected, CPU or motherboard may be faulty.
Device issues detected, CPU or motherboard may be faulty.
Hey, I found a friend's prebuilt setup to fix the issue. It began shutting down during games, sometimes didn't recognize the SSD, and eventually wouldn't boot at all. I brought it home for testing—putting his M.2 in my test bench didn’t work, so I got a replacement. Now the new SSD also isn’t being detected, but it works fine on my bench. Since I don’t have any spare Intel 9000 Series chips nearby, I’m not sure if the board or CPU is completely dead. I checked the i5 9400 and saw it only has 16 PCIe lanes, which makes me think it might be the board itself. What do you all think?
I'd begin with the motherboard. Unless you're able to test the CPU on a board you own.
The issue is needing a backup CPU from the same generation and a spare motherboard with the same chipset for testing. You might have to borrow one or purchase it from a hardware store. Since many technicians need samples of each component, this can become costly.
CPUs usually work well. About 99 out of 100 times they don’t break down. The main reason for issues here is the motherboard, not the chip makers or any special tricks in their processors. There are simply more components that can go wrong on a motherboard than on a CPU.