HP P6-2125 no longer boots. Black screen, but can turn on.

[alphafoxians1]

Hey y'all.

I've had a Pavilion P6-2125 for more than a decade now and I've done a few things here and there to keep it running for a relative to use. I've upgraded the ram and even added a graphics card. At some point in 2019 - 2020, I upgraded the thing to Windows 10 (I think this was a bad decision on my end, hence why the performance got worse)

Recently, my sibling did an 'upgrade' on it as it was becoming too slow and he wanted to swap out the motherboard or so to see if it would help. The motherboard was essentially replaced altogether with a new processor in it.

At first it worked fine and would actually be faster than before, but over the course of days, booting it up took way too long and every now and then the computer would become overloaded and crash, shutting down and restarting at times.

Recently, the computer began to bootloop a few times and eventually shut down. Next thing you know, the next attempt to start it up would only show nothing but a black screen. Fans whir, the green light on the back is on, but nothing is booting. Nothing's showing. Can't go into safemode, boot mode or anything. Keyboard doesn't light up.

So, I attempted to restore the hard drive back into the old motherboard, connected all the cables where it made sense, and tried to turn it on again to no avail. Swapped out the PSU to see if anything changed. Nothing. FYI, I don't do computer stuff too often, so perhaps I may have plugged in a few cables wrong. Although, I wouldn't know because there's no video or diagram out there that shows me (on Youtube there's disassembly videos but they don't show the cables clearly).

At this point, is the hard drive fried? Was the motherboard incompatible and caused some hardware issues? Did I plug in anything wrong? I really hope we can get this fixed because there's a bunch of music folders on a Chrome folder that said relative has been building up (although I warned him to use YouTube playlists instead so it could be accessed on any device).

THINGS USED

'Replacement' Motherboard, Gigabyte GA-H61M-DS2H

'Replacement' Power supply, ATX Switching Power Supply Model PSIV-500-2

Pictures below if you wanna point out if I've got something plugged in wrong.

[alphafoxians1 · Accepted solution]

Update: it was a dead ram stick.

LOL