Hi,
I have a DA0HK5MB6F0 MBX-269 motherboard and it is not working. I have schematics and I checked all power supplies and found out that 1.05V 15A PS controlled by PU105 was not working. I checked MOSFETS PQ252 & PQ253 and PQ253 was damaged. I replaced it but still PU105 is not producing 1.05V.
When I press power button, 3 LEDS LED_NUM1, LED_CAP1, LED_SCR1 are lighting and orange LED D13 (SATA_ACT) is lightning for 2-3 seconds. Then it powers down again.
On screen there is nothing.
What is the problem? I don't have any EEPROM programmer.
If I replace KU1 NPCE885L, can it work?
If yes, where can I find it?
Thanks.
I have a DA0HK5MB6F0 MBX-269 motherboard and it is not working. I have schematics and I checked all power supplies and found out that 1.05V 15A PS controlled by PU105 was not working. I checked MOSFETS PQ252 & PQ253 and PQ253 was damaged. I replaced it but still PU105 is not producing 1.05V.
When I press power button, 3 LEDS LED_NUM1, LED_CAP1, LED_SCR1 are lighting and orange LED D13 (SATA_ACT) is lightning for 2-3 seconds. Then it powers down again.
On screen there is nothing.
What is the problem? I don't have any EEPROM programmer.
If I replace KU1 NPCE885L, can it work?
If yes, where can I find it?
Thanks.
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