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| Pegatron IPMIP-GS Rev 1.02 - Dont Start (solved) https://vlab.su/viewtopic.php?f=44&t=124398 |
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| estudier [ 23 мар 2022, 18:16 ] | |
| Заголовок сообщения: | Pegatron IPMIP-GS Rev 1.02 - Dont Start (solved) |
Good Morning. Today I was working on this motherboard. Its doesnt start, doesnt turn on power supply, ... Testing input voltages, STB was OK, Power Button with 3V, but nothing happen when pressed. I checked BIOS and SIO voltages, came from Step Down Converter (PU6 - RT8250), but its has only 0,52V on its Vout. Pins 1 and 3 was short-circuited. Change to a similar step-down 3A (MP2703), Vout changed to 1,52V, dont starting MB. Removing the CAP on pin 3 out, get Vout to 3,34V, starting MB normally. Go to another challenge.... txs |
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