Asrock 775VM800 does not turn on

[Ravenwolf]

Hello! Well, I have a problem with an Asrock 775VM800 motherboard. It turns out that I found this computer lying around in a storage unit, without a power supply. I bought a power supply and tried to test it, but the PC doesn't start up directly... The motherboard has power (the keyboard lights and the mouse laser turn on) but it doesn't send anything to the video output, nor does it start the CPU fan...

What happens is: The motherboard has power, when I press the power button, a green LED lights up on the front of the case, but that's all that happens... Except for a "tuik!" sound (at first I thought it might be coming from a speaker noise, but then I realized there's no speaker). So I have a slightly high-pitched sound that emits when I press the button. The sound seems to come from near two capacitors (like water tanks, those cylindrical ones...) that have a "belly up", while the rest are all flat on top... Could these capacitors be broken? I have little knowledge of electronics, and even less experience, I don't know what a broken capacitor looks like, or how to test it (I don't have those testers to measure capacitors...).

Well, that's my problem... any suggestions? If it turns out to be the capacitors, I'll try to fix it... it would be a shame if it's broken (as far as I knew it was working...). If I manage to recover it, I'll have a new PC, although it's actually quite old... but it will come in handy for something I have in mind... Regards!

[Sylver]

Hello

What you're saying must be the capacitors and if they are swollen differently from the others it means they are broken because they have "burst" and probably spilled some liquid, although as a rule it is not so, it depends on the capacitor.

Honestly I don't think it's worth trying to fix it, it's possible that even by replacing the capacitors the board won't work due to some kind of internal damage, so if it was thrown away it must be for that reason.

If you want to try to fix it first you should replace those broken capacitors with new ones, but you need to find out what type of capacitors they are exactly to replace them with identical ones that perform exactly the same function as the damaged ones, and the truth is I don't know how you can find out the information of a capacitor on a board, I guess you could try to read the legend they supposedly have somewhere or on the board, but it's just a guess.

Regards