ASUS ROG GX800VH Black Screen, Fan Spinning and Numlock light on. No POST with battery and Black screen when AC plug removed
On Jun 19, 2023
My Asus ROG GX800vh laptop, which I have been using for over a year
Last night I used all fine and shutdown as usual, came from office today and started it up; laptop turns on, fans spinning but no display, not posting and numlock light is on.
Things I've tried: Opened laptop and 2 out of 4 rams to see if it boots, cleaned rams and ram slots. Not working.
Also, getting access to 2 of the ram slots are tedious thing. Resitteed all 3 SSDs.
So far nothing worked. And in google there's not much info about gx800vh.
Update on Jun 21, 2023
I force shutdown few times to get to windows repair and then proceed to Safe Mode. In Safe Mode I DDU my Nvidia display driver and restarted. I login normally then proceed to install Nvidia Driver. But during driver intallation I get Black screen with windows running in the background. I tried a couple of times but same reuslt.
Also this laptop had 2 Nvidia GTX 1080 in SLI and in Device Manager one of the GPU shows Yellow error icon. And when I try to open Nvidia Control Center, I get an error message saying no display is attached to the GPU.
Yesterday I found out the laptop doesn't POST using battery and fan spins fast with keyboard backlight on. Then when I connect the AC plug, it boots up normally after a coupe minutes with no POST. Also, If I remove AC while the laptop is running, I get black screen with windows running. I cleared CMOS, changed CMOS batter with a new one. This issue repeats. Battery charges and discharges fine btw, also battery health is good.
Note: ASUS Gaming Center gives me a Falied Overclocking message, saying BIOS>Defaul> Save, which I did. Even though I clearly didn't overclocked anything. (ASUS ROG GX800VH does overclock on its own when docked but even without docked I get Overclock Failed error message.)
I want to take it to a repair shop but I am scared that they would try to repaste ICs without care and nuclear the board. It's Bangladesh after all.
Any suggestion would be appreciated. I don't understand I'm not getting help from any forum sadly.