E1-571 (la-7912) no display

R EZ A

hi guys

i've a board that it powered on,but no display

it first use about 0.45A and fan work 100%
after a moment corrent decrease to 0.35 and fan work slower

all voltages exept cpu_core are ok

what i should be do?

alexalexa

Try found and download BIOS firmware from oficial page of Acer company.
Refill Bios to flash- chip by the use programmator device.

R EZ A писал(а):

hi guys

i've a board that it powered on,but no display

it first use about 0.45A and fan work 100%
after a moment corrent decrease to 0.35 and fan work slower

all voltages exept cpu_core are ok

what i should be do?

R EZ A

no change with bios programming

Posted after 1 hour 20 minutes 43 seconds:
i replace the isl95836 (cpu pwm controler)

it worked

greedy

Please tell me that element? What are the characteristics of this element? And it would be very well - position number in the diagram. Many thanks in advance.

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E1-571 (la-7912) no display

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