Hi all everyone has been asking for it so here it is!
How to get a 7800GTX in a Dell 9400, (I take no responsibility for damaging your laptop! do it at your own risk!)
Step 1
Remove Screen/palm rest from the laptop.
Step 2
Remove the original video card.
Step 3
Remove right hand screw post for keyboard
Look here

Do this by heating up the bottom of the post with a hot soldering iron, then pull it upwards with a pair of pliers, once the solder has melted.

Step 4
Remove metal from above CPU heatsink area.

The left side needs more removing than the right side, I used some pliers to break off the edges.
Step 5
Loosen the Video fan screws and push to the bottom of the system, no make more room for the heatsink above, re-tighten.

Step 6
Take 7800GTC card, and bend heatsink left and upwards a bit.

Step 7
Carefully place the 7800GTX card into the system, making sure the pci-e connector and screws align up, and maneuver into place the heatsinks into both positions.


As you can see there is one keyboard screw hole missing, am working on this now! but should be ok for now!
System can now be put back together, and tested!
Have also confirmed you do need the XPS 130W power adapter, as the 90W dies what graphics card it at full power.
Hope you all find this helpfull!
How to get a 7800GTX in a Dell 9400, (I take no responsibility for damaging your laptop! do it at your own risk!)
Step 1
Remove Screen/palm rest from the laptop.
Step 2
Remove the original video card.
Step 3
Remove right hand screw post for keyboard
Look here

Do this by heating up the bottom of the post with a hot soldering iron, then pull it upwards with a pair of pliers, once the solder has melted.

Step 4
Remove metal from above CPU heatsink area.

The left side needs more removing than the right side, I used some pliers to break off the edges.
Step 5
Loosen the Video fan screws and push to the bottom of the system, no make more room for the heatsink above, re-tighten.

Step 6
Take 7800GTC card, and bend heatsink left and upwards a bit.

Step 7
Carefully place the 7800GTX card into the system, making sure the pci-e connector and screws align up, and maneuver into place the heatsinks into both positions.


As you can see there is one keyboard screw hole missing, am working on this now! but should be ok for now!
System can now be put back together, and tested!

Have also confirmed you do need the XPS 130W power adapter, as the 90W dies what graphics card it at full power.
Hope you all find this helpfull!







thanks again



know that I know that 7800 Go GTX will work but I am still waiting for the 7900 Go GTX hope it works too thanks for the info good work!