Several problems: Boot loop, can't access bios (due to CSM) and apparently, no RAM

demalmar

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Jun 4, 2014
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My cousin gave me his laptop since it was boot looping.

The issue is that it is in a boot loop by acpi_boot_error. I have tried to boot from windows dvd and USB, but the first is stopped by an error, and the second boot loops, so I can't boot from any device.

Second issue is that, in order to make them work, I activated CSM option in bios, and now the laptop can't access the bios anymore. I have tried disconnecting the hard drive, but there is little information about this issue in internet, So I have now an extra problem.

For the record, I don't know if this is normal, I haven't opened much laptops, but whereas mine has a RAM module, his is empty. Can ram be somewhere else in a laptop? That slot is empty is his, and that is really weird to my eyes.

I'm really struggling with this so if any of you can give me a clue, it would be great.
The laptop is an ASUS s400ca.

Please, help.
 

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