Discussion on:

how to replace Asus G1s Gaming laptop graphics card

I have an Asus G1 gaming laptop with an over heated graphics card, is there any company that sells replacements..? I have tried Asus but no results..and also how do I replace the damaged one...because it seems the graphics card is attached to the motherboard..

This is because you have a NoteBook and in this NoteBook the Video Chip Set is part of the M'Board, there is not a replaceable Video Card as such.

This nVidia Chip Set was the faulty one made by nVidia and probably should have been recalled fixed by ASUS by designing a new M'Board and fitting it then taking action against nVidia to recover costs. This didn't happen and you are stuck with what you have which is a faulty nVidia Chip Set Video Setup on a otherwise working NB.

Short of starting a Class Action against ASUS which I now believe is way too late because nVidia has finalised the faulty Batch of Video Chip Sets I think you'll find that you are stuck with what you have and if it's no longer displaying any Video it's effectively a brick.

Col

The 8400M is a square board with an edge connector, looks like a small square PCI card, but with no connectors. Look on eBay for Nvidia GeForce 8400M.

Boards like that are held in with four screws and the edge of the card has a connector on one side.

If you see NO Screws on yours, that's not a replaceable board, unless you have the necessary SMD (surface mount device) re-work tools.

-OR-

Note that OFTEN you can repair one of those through the use of a toaster-oven or heat gun, there are tons of how-to videos on the net about how to fix your GPU that way.

The solder blobs (called balls) under the GPU get cracked (I'm not making this up) and by applying the right amount of heat, you re-melt the solder blobs and fix your GPU. I've done it twice, using a heat gun, IR thermometer, and a copper heat-shield.