Hi @Bong welcome to this user to user discussion forum. This is not Dell Support.
Support for Alienware M15x Documentation includes Top Solutions to keep your system serviceable.
From your description POST is trying to complete, but you did not say if it did, or if screen works, splash screen appears with F2 and F12 options, or that boot into operating system was successful.
If POST fails to detect RAM, it will not complete and there will be no screen. If that is the problem, the RAM cards need reseating.
Laptop without battery is designed to function as Desktop on ac adapter power. Check that 10 year old laptop works when battery disconnected. Does the ac adapter diagnostic light remain on when plugged into laptop?
Please click on Kudos to say thank you for response from user that is not employed by Dell. Please share an update on progress, so that other users derive benefit from your experience. Thank you.
The image below will tell you what your problem could be, based on the blinking lights. I think you had a typo above. Is the CAPS blinking or not? What is the SCROLL lock light doing?
It's quite common for the GPU to fail and these are very old laptops now so I wouldn't be surprised if the 260M has failed. If it's the SCROLL and NUM locks that are flashing then my guess is that it will be the GPU causing the problem. You can replace it easily.
crimsom
7 Technologist
•
6.1K Posts
0
August 26th, 2021 03:00
Hi @Bong welcome to this user to user discussion forum. This is not Dell Support.
Support for Alienware M15x Documentation includes Top Solutions to keep your system serviceable.
From your description POST is trying to complete, but you did not say if it did, or if screen works, splash screen appears with F2 and F12 options, or that boot into operating system was successful.
If POST fails to detect RAM, it will not complete and there will be no screen. If that is the problem, the RAM cards need reseating.
Laptop without battery is designed to function as Desktop on ac adapter power. Check that 10 year old laptop works when battery disconnected. Does the ac adapter diagnostic light remain on when plugged into laptop?
Please click on Kudos to say thank you for response from user that is not employed by Dell. Please share an update on progress, so that other users derive benefit from your experience. Thank you.
mattyb3
5 Practitioner
•
1.7K Posts
0
August 29th, 2021 15:00
Hello,
The image below will tell you what your problem could be, based on the blinking lights. I think you had a typo above. Is the CAPS blinking or not? What is the SCROLL lock light doing?
It's quite common for the GPU to fail and these are very old laptops now so I wouldn't be surprised if the 260M has failed. If it's the SCROLL and NUM locks that are flashing then my guess is that it will be the GPU causing the problem. You can replace it easily.