A capacitor blew

frvgii · May 26

I was using my RX 580 8GB normally then a capacitor blew and the whole pc shut off.

I believe its labeled C721 but the label is gone now. I wanna know what size and value it is so I can replace it.

Kilrah · May 26

There wouldn't have been a label anyway. I'd just clean up the remains and there's quite some chance it'll work without.

frvgii · May 26

2 hours ago, Kilrah said:

There wouldn't have been a label anyway. I'd just clean up the remains and there's quite some chance it'll work without.

I just tested it again and the pc did not boot. The cpu cooler fans spun for 1 second and the pc turned off by it self.

Nevermind I tried it again and the C720 capacitor blew

womp womp

mariushm · May 26

When that capacitor died it shorted out so a direct connection between 12v and ground was created, and the power supply detected this short circuit and shut down to protect itself.

Removing the capacitor will remove the short circuit and everything should run again.

If you want to replace the capacitor, it will be most like some low value capacitor , 1uF , 10uF, something like that. 1 uF would probably be safest choice.

frvgii · May 26

5 minutes ago, mariushm said:

When that capacitor died it shorted out so a direct connection between 12v and ground was created, and the power supply detected this short circuit and shut down to protect itself.

Removing the capacitor will remove the short circuit and everything should run again.

If you want to replace the capacitor, it will be most like some low value capacitor , 1uF , 10uF, something like that. 1 uF would probably be safest choice.

Thank you for the answer! I'll try it out tomorrow and make an update on the result.

frvgii · May 27

21 hours ago, mariushm said:

When that capacitor died it shorted out so a direct connection between 12v and ground was created, and the power supply detected this short circuit and shut down to protect itself.

Removing the capacitor will remove the short circuit and everything should run again.

If you want to replace the capacitor, it will be most like some low value capacitor , 1uF , 10uF, something like that. 1 uF would probably be safest choice.

Thank you my man! its working again!