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| Sony vpccw21fx (MBX-226) Not Booting https://vlab.su/viewtopic.php?f=55&t=28809 |
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| FRD [ 02 фев 2015, 20:52 ] | |
| Заголовок сообщения: | Sony vpccw21fx (MBX-226) Not Booting [РЕШЕНО] |
Hi everybody. There is a notebook (VPCCW21FX) (M9A0 Main Board MBX-226 rev1.1) that gets switched on but nothing happens after that. After switching on, all the chips get warm a little bit, fan starts to spin up but noting happens, no lights except Power LED. At first I reballed the GPU and nothing changed. I was Searching on the forum and came across a thread that mentioned to check Pin5 (SI/SIO0) of BIOS IC so I checked it and other pins have voltage but Pin 5 is GND. I'm confused and would appreciate any help to diagnose the problem. Thanks in advance. |
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| freeqwer [ 03 фев 2015, 06:50 ] | |
| Заголовок сообщения: | Re: Sony vpccw21fx (MBX-226) Not Booting |
Raise 5 pin at U12 and measure the resistance . Find out which side has a short circuit. From eeprom or from NPCE783LA0DX. |
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| FRD [ 04 фев 2015, 23:41 ] | |
| Заголовок сообщения: | Re: Sony vpccw21fx (MBX-226) Not Booting |
freeqwer писал(а): Raise 5 pin at U12 and measure the resistance . Find out which side has a short circuit. From eeprom or from NPCE783LA0DX. Thanks for the reply. Before proceeding I decided to flash bios and fortunately it worked like a charm. Anyway thanks again for the reply. |
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