Hello,I have a problem that I can't solve by my self so I kinda need your help.
Problem is in 400W PSU that I had for 10 years it shuts down every time there is a full load on GPU which renders the PC useless for anything but internet browsing so its probably overload protection kicking in.
The problem started one day when I went to turn on the PC but nothing happened so I immediately knew that problem must be in the PSU,I took it apart and found 16V 2x2000uF leaked caps on secondary side,I didn't have any 2000uF caps so I replaced them with 35V 4000uF caps it solved the problem and PC booted up and performed very stable,no voltage fluctuation.So everything worked fine for 2 weeks and then problems started again,PC would fail to boot after windows loading logo and would shut down if I loaded my GPU hard.So I took it apart again and replaced the caps with proper ones but problem still persists.I noticed that voltage on -12 rail is actually -6V all other voltages are fine.I'm not sure why is the PC even booting since it shouldn't be sending power good signal since -12V is low.So the problem is probably in 12V rail which falls below required voltage.
http://www.sg.com.tw/semigp/data/6105/6105-datasheet.pdf
Problem is in 400W PSU that I had for 10 years it shuts down every time there is a full load on GPU which renders the PC useless for anything but internet browsing so its probably overload protection kicking in.
The problem started one day when I went to turn on the PC but nothing happened so I immediately knew that problem must be in the PSU,I took it apart and found 16V 2x2000uF leaked caps on secondary side,I didn't have any 2000uF caps so I replaced them with 35V 4000uF caps it solved the problem and PC booted up and performed very stable,no voltage fluctuation.So everything worked fine for 2 weeks and then problems started again,PC would fail to boot after windows loading logo and would shut down if I loaded my GPU hard.So I took it apart again and replaced the caps with proper ones but problem still persists.I noticed that voltage on -12 rail is actually -6V all other voltages are fine.I'm not sure why is the PC even booting since it shouldn't be sending power good signal since -12V is low.So the problem is probably in 12V rail which falls below required voltage.
http://www.sg.com.tw/semigp/data/6105/6105-datasheet.pdf
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