Hello,
It is an older Acer Aspire E300-M97S desktop PC
with a mainboard Foxconn CK804M03-6EKS.
When I turn it on the fan runs at full speed.
The monitor remains black.
I tried a different power supply - no success.
I tried a different graphics card - no success.
I changed the 3 volt battery.
Could it be because the BIOS settings have been lost?
The following happened before:
The graphics card has 2 DVI ports.
Once when I plugged the DVI connector into the other DVI port,
a picture appeared and I was able to enter the BIOS with "Enter".
The fan ran at normal speed.
But that only worked once or twice.
Now when I turn it on, the fan immediately runs at full speed and the monitor stays black.
What could be the problem, what can I do?
Comments
This is a very old motherboard. Are electrolytic capacitors good on the board? Do you see bulging tops?
https://i.imgur.com/Y5FV84W.jpg
https://www.capacitorlab.com/visible-failures/
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Hi besvg,
I think this is a typical sign indicating a north bridge BGA or CPU failure.
You can try to heat the north bridge bga with a blowtorch and start the motherboard.
If the mainboard starts, bga replacement is required.
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Thank you for your information.
So far I haven't found any suspicious electrolytic capacitors.
I heated the Northbridge with a heat gun.
Unfortunately nothing has changed.
The Northbridge has a cooler with a small fan.
I didn't know the abbreviation BGA.
There are so many shortcuts in computers.
I'll search and experiment more later.
)
(When it's not so cold in my workspace anymore
Thank you.
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