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A1311 (820-2641-A) no power on
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onworkrs [ 10 май 2019, 14:33 ]
Заголовок сообщения:  A1311 (820-2641-A) no power on

Hi
I've a problems with this kind motherboard. Only the first green led is on, but if i press the power switch nothing happen.

No short on the board, and correct tension on the power switch (3.3 V)

I tried another machine and tested it with another source, CPU, graphics and memories ... and it's still the same!

On board:
- I have 3v on the bios and the power button and zero when pressing.
-I have 12V and 5V coming U7700 ISL62383
Any suggestion?
Thanks

onworkrs [ 21 май 2019, 13:29 ]
Заголовок сообщения:  Re: A1311 (820-2641-A) no power on

help please!

Shooter75 [ 21 май 2019, 23:49 ]
Заголовок сообщения:  Re: A1311 (820-2641-A) no power on

Hi.
Do You have a schematics and boardview?
Do You understand, what means 2nd,3rd,4th, ..., 11th debug LEDs?
Yes, You have 11 debug leds on this MOBO, but only 4 are soldered on it.
What do You want?
It's not a primary school for hardware repair stuff.

5V and 12V - it's all, what are You measured on MLB?

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