The computer isn't powering up.
The computer isn't powering up.
I was assembling my PC using this video as a guide. This was my second build, and everything functioned properly until I inserted it into the case. After removing it, I tested again—it still wouldn’t power on.
Look for any indications of harm, including the rear side of the motherboard.
That's accurate. The only alternative would be to disassemble and reassemble it, then test it.
I believe the PSU is the issue. I tried the test using the cables without fully understanding the steps, but now I realized the fan isn’t running. I might consider getting a replacement.