Acer Aspire 5250 multicolor pixels and lines on the screen even in bios and external monitor

I have an Acer Aspire 5250 laptop. It has an AMD processor and an AMD Radeon gpu.

Everything is disconnected, no hard drive, no dvd, no modem, no wireless lan card. The only thing on it is the heat sink and ram. The ram is good, have tried many others. It should post just fine given this setup.

I have also disconnected the LCD screen, all I am trying to get this computer to do is post with an external monitor attached.

When i turn it on, it shows acer logo with lines and pixels, goes to no bootable device detected etc. So there is display OK and its asking for a bootable device, fine. Also when i go into bios setup, there are multicolor pixels and lines all over the screen. Broken lines and recurring pixels. Even in the bios setup?

I am trying to use this computer to connected to my tv with the HDMI or VGA port. I am not concerned if the LCD on it works or not, doesnt matter.

Why are there these lines and pixels showing up even in the bios setup. Is it a dead/overheated GPU or something other than that.

I havent tried reflowing the GPU yet. I think I better ask for some advice before i get into that.

Both the processor and the gpu are soldered on the motherboard, hence both are irreplaceable without the right tools. Please let me know if this is a bios issue, or where to go from here. Thanks much.

 

Indeed it looks like a GPU problem,
Can you post a photo of the lines?

 

This is what i'm getting on the screen

 

It looks like a GPU issue. Being it's not an MXM machine you can either replace the mobo, retire the notebook or send the mobo to a specialist that would reflow it or attempt do do it yourself in the oven.

It's not one of those units that typically need reflowing though so it might not be it.