PC shuts down under heavy load

So, I'm guessing the PSU is the culprit since it keeps cutting out under heavy load. The PC is about 7 or 8 years old and is still running on its original power supply. It just shuts down right in the middle of a heavy task and won't boot back up until I flip the switch on the back of the unit off and then back on. It’s a Modec Feel 400 w. If anyone can confirm it's definitely the PSU, let me know—and if it is, hit me with some solid recommendations for a replacement.

It’s almost certainly a power supply issue. I guess you might want to see if anyone can lend you a better unit just to test it out for a day?

Anyway, Fortron Hexa + 400 w

Will this power supply work on an older PC? Are all the connectors standardized? I don't have anyone I can borrow one from to test it out.

They’re all pretty much the same, really—unless you're working with an older motherboard that only uses a 20-pin connector while your power supply has the standard 24-pin. In that case, you can actually just pull those extra 4 pins off the main 24-pin connector from the PSU... kind of like what you see in the picture, just so you know what to look for if you run into it. 🙂

It’s a 24-pin motherboard, thanks for the help 🙂

It's the same deal with these CPU and GPU pins. It says 4+4 and 6+2, so does that mean they can be split up?

Exactly. You'll need the 4+4 pin for the CPU and the 6+2 pin for the GPU.

By the way, what kind of temperatures are you seeing on the CPU and GPU when under load? It could potentially be an overheating issue, though I suspect the power supply is the more likely culprit here.

Can't really verify much since the whole thing just dies under load immediately lol. Ran an OCCT power supply test last night and it shut down after two seconds flat. I already ordered a Fortron Hexa + 400 w, so hopefully I can figure out the installation. Just praying it has all the same connectors as my current one.

Changed the thermal paste about three months ago. I also blow out the dust once a month.

Nah, you didn't screw up by getting a new PSU. That thing was junk when you first bought it, and after 7 or 8 years, it’s basically twice as much junk now 😁

You were going to have to swap it out eventually anyway, so you haven't really lost anything—especially since it's not even about the power supply anymore