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| desktop HP compaq DC-5750 ( use Asus M2RS485-btx.106 ) https://vlab.su/viewtopic.php?f=289&t=68198 |
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| eletmoraes [ 11 ноя 2017, 01:39 ] | |
| Заголовок сообщения: | desktop HP compaq DC-5750 ( use Asus M2RS485-btx.106 ) |
no video . does not turn off when I press the power button. voltage of 3.3v and 5V normal. normal memory supply voltage I do not realize heating in bga north and bga south I did not find schematic diagram of the motherboard sem sinal ou tensão nos pinos (D +) e (D-) no conector usb I suspect that the South Bridge is not receiving power source |
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| Tektronix [ 11 ноя 2017, 03:00 ] | |
| Заголовок сообщения: | Re: desktop HP compaq DC-5750 ( use Asus M2RS485-btx.106 ) |
Are you getting the enable signals for the DC/DC converters? If so, what about other voltages? Make measurements at the inductors. |
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