15 R3, 2 red 3 blue blinking code, problem, #2

Question

<You replied to a 4 year old thread. Started your own thread. DELL-Admin>I have the exact same problem. I brought my laptop to a repair shop and the guy told me it might be the motherboard. In that case there’s really nothing we can do, although I believe it’s due to the computer getting to hot. I’m currently waiting for that stroke of luck for my pc to turn on so I can play Counterstrike.

JOcean · Answer

That blink code indicates no RAM detected. Try reseating the RAM. If that does not help try one RAM module at a time.

crimsom · Answer

Hi @Caphareus the original February 20th, 2020 post says "the power button just blinks red twice and blue three times with no alarm sound and the screen is totally black, but the LED light seems to work just fine. I was able to turn it on after 48 hours or so, and it works perfectly when I play games."

The screen needs memory for it to work. POST is the Power-On-Self-Test initial diagnostic tests performed by the computer right after it's powered on, to check for any hardware related issues. Memory cards are usually very reliable and do not fail.

The Alienware m15 R3 (5/21/2020) is old and should have had any accumulated dust and/or debris periodically removed from intake and exhaust vents, and fan blades. Dust and/or debris should also have been removed from the surface of the system board (aka motherboard) using can of pressurised clean dry air, or similar.

Check the electrical connection of the memory cards and their slots by making sure that they do not have any dust and/or debris, clean using can of pressurised clean dry air, or similar. Avoid contamination by touching the bright copper connections on memory cards. Install one memory card in slot A (and then slot B) and switch on laptop to see if screen works. Then repeat using other memory card. Hopefully, the screen will now start working.

Please share an update on progress, so that other users derive benefit from your experience. Thank you.