Hello again and I really hope somebody can give a heads up so I can find the issue.
This PSU has busted Ltec caps, the 12V and 5VSB ones are sooo bulged and the reading is 28pF... The 5V + 3.3V ones show way above rated capacity and I guess they are approaching their death.
Stock CAPS
12V -> Ltec LTG 2200uf 16V X2 -> Nichicon HV 1500 16V + HD 2200 16V
5V -> Ltec LZG 3300uf 10V -> Nichicon HD 3300uf 10V
3.3V -> Ltec LZG 3300uf 6.3V X2 -> NCC KY 2200uf 10V X2
5VSB -> Ltec LTG 1000uf 10V + 1500uf 10V -> NCC KY 1000uf 16V X2
This patient is from a friend of mine and the system could hung on sleep mode and very rarely would BSOD. After the re-cap I see this strange behavior : doing cold boot the system will 100% of times boot fine run great and all voltages will be fine. The moment I shut down the PC and for about 1-2 minutes the PC will boot fine again! The "magic" happens if I try to boot after 10minutes (the PSU switch is ON but system is shut down) the case FANS will do half a turn the CASE led will start blinking and there will be no power/post from there. It looks to me more like an OCP/OVP or some sort of protection kicking in, from there and the only way to boot is to turn PSU switch off for a while then On again. The 5VSB line looks fine and shows around 5.1V at all times.
*There looks to be a StartUp cap *35V 220uf* that I already tested, removed then re-soldered cause the same thing happened with the replacement cap.
*Most likely a PowerGood signal issue so far but the psu is terrible in terms of repairability.
This PSU has busted Ltec caps, the 12V and 5VSB ones are sooo bulged and the reading is 28pF... The 5V + 3.3V ones show way above rated capacity and I guess they are approaching their death.
Stock CAPS
12V -> Ltec LTG 2200uf 16V X2 -> Nichicon HV 1500 16V + HD 2200 16V
5V -> Ltec LZG 3300uf 10V -> Nichicon HD 3300uf 10V
3.3V -> Ltec LZG 3300uf 6.3V X2 -> NCC KY 2200uf 10V X2
5VSB -> Ltec LTG 1000uf 10V + 1500uf 10V -> NCC KY 1000uf 16V X2
This patient is from a friend of mine and the system could hung on sleep mode and very rarely would BSOD. After the re-cap I see this strange behavior : doing cold boot the system will 100% of times boot fine run great and all voltages will be fine. The moment I shut down the PC and for about 1-2 minutes the PC will boot fine again! The "magic" happens if I try to boot after 10minutes (the PSU switch is ON but system is shut down) the case FANS will do half a turn the CASE led will start blinking and there will be no power/post from there. It looks to me more like an OCP/OVP or some sort of protection kicking in, from there and the only way to boot is to turn PSU switch off for a while then On again. The 5VSB line looks fine and shows around 5.1V at all times.
*There looks to be a StartUp cap *35V 220uf* that I already tested, removed then re-soldered cause the same thing happened with the replacement cap.
*Most likely a PowerGood signal issue so far but the psu is terrible in terms of repairability.
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