Qasim76
1 Copper

15 R3, wont turn on after bios update

Does not turn on alienware logo is blinking 3 times red 1 time blue Then 3 times red and 1 time blue tried cmos reset tried power drain tried booting with 1 stick of ram nothing helps

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1 Reply
JOcean
5 Tungsten

Re: Alienware 15r3 wont turn on after bios update

That light sequence indicates a bad CMOS battery (coin cell). Replace the battery, as the following support page explains.

https://www.dell.com/support/manuals/us/en/04/alienware-15-laptop/alienware-15-r3-service-manual/pro...




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