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| dell n4030 (dj1) not trun on https://vlab.su/viewtopic.php?f=41&t=27964 |
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| nasser_pczone [ 11 янв 2015, 01:04 ] | |
| Заголовок сообщения: | dell n4030 (dj1) not trun on |
this laptop work fine till i copy some file and unexpected shutdown and not turn on again i do this work 1-change charge ic 2-change i/o 3-flash bios and ec with worked one 4-heated the HM57 chip i mixed up all voltages is present like 3.3 power button and 3.3v EC flash ic but on the bios chip (4 mb )3.3v not present i know this voltage is reason of the problem please tell me how i can solve this problem thank you |
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| and555 [ 15 янв 2015, 15:28 ] | |
| Заголовок сообщения: | Re: dell n4030 (dj1) not trun on |
replace RTC battery, it should turn on automatically. if not, check KBC_PWRBTN_EC#(3.3v), press the power button, and see the response of PM_PWRBTN#(it should be 3.3v when power button pressed), if no response of PM_PWRBTN#, reheat/replace PCH. nasser_pczone писал(а): on the bios chip (4 mb )3.3v not present this will present when the laptop is turn on. |
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