Alienware classic M17x R4 upgrade woes.

[jeand2001]

I once owned an m17x R4 with an nvidia GTX980m. It was perfect but eventually passed it on.

 

Now,  I've bought another this time with the standard GTX660m which is very weak.

 

So I bought a Tesla m6 and also a GTX980m

 

Problem is, when installing either the laptop does not post and I just get 8 beeps (supposedly display error).

 

It has the latest standard bios set to uefi.

 

When I re-insert the GTX660m everything goes back to normal and it starts up ok.

 

Just for further info, I tried these 2 cards in my old m15x Laptop and the Tesla M6 - no boot, the GTX980m works fine.

 

Any ideas on how to get these working in the M17x R4, or why they don't work?

 

I'd love to have this solved, I think I've come to the right place

 

Thanks!