dontpanic80 Posted January 31, 2021 Share Posted January 31, 2021 (edited) hello guys, just dropped here... was using my computer and suddenly screen went weird and the power board started buzzing (yeah I opened it) a video says more than thousands words... what do you guys think happened? it's only the power board or can be more? the power board unplugged from the computer doesn't buzz and the voltages seems correct Edited January 31, 2021 by dontpanic80 Quote Link to comment Share on other sites More sharing options...
tuf Posted January 31, 2021 Share Posted January 31, 2021 Any smell of smoke or visibly blown capacitors? The first thing you need to do if you're able is measure the voltages coming out of that supply board. Quote Link to comment Share on other sites More sharing options...
dontpanic80 Posted January 31, 2021 Author Share Posted January 31, 2021 7 minutes ago, tuf said: Any smell of smoke or visibly blown capacitors? The first thing you need to do if you're able is measure the voltages coming out of that supply board. no smell... voltages seems to be okay, maybe the 12Vdc is little low... it gives 11.7 Quote Link to comment Share on other sites More sharing options...
AwkwardPotato Posted February 1, 2021 Share Posted February 1, 2021 Unplug the power board from the motherboard. On the motherboard's power connector, measure the resistance between each of the power rails (+5V, +12V, -5V) and ground. Chances are at least one rail is shorted if it's causing the power board to buzz. Also, 11.7V is totally fine for the 12V rail. Quote Link to comment Share on other sites More sharing options...
+dhe Posted February 4, 2021 Share Posted February 4, 2021 BETTER YET.... Get a working spare 99, then you got parts to swap! W00t! 1 Quote Link to comment Share on other sites More sharing options...
GDMike Posted February 5, 2021 Share Posted February 5, 2021 Let me know what you did..thx Quote Link to comment Share on other sites More sharing options...
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