Want to upgrade 7900GS(256MB) to 7900GTX(512MB)

So far this is where I've gotten... I would like to learn what needs to be done so that I can do this..and how dangerous is it really...

My system is as follows:

Gateway NX860XL
Intel Core 2 Duo Processor T7200 (2.00GHz, 667MHz, 4MB L2)
2048MB 667MHz DDR2 SDRAM
17.1" WUXGA TFT Active Matrix (1920x 1200) DKT 802.11n
Chassis w/ Intel 945PM Chipset & IEEE1394
nVidia 7900 GS 256MB Graphics Card
120 Watt AC Adapter and Power Cord

 

The guys who did it had Dell laptops, I am not optimistic about doing this on your Gateway. In fact, this could very well prevent your laptop from booting up. Tread very carefully, and look for a Gateway BIOS mod for the 7900GS.

That being said, they modded the BIOS of the 7900GS and essentially turned it into a 7900GTX performance wise. They did not have to pin mod the card either.

Here is the link to the LaptopVideo2Go discussion.
Here is the link to the NBF discussion.

 

Heh, I wonder if perhaps upgrading my 7900 GS to a 7900 GTX could work on my laptop...

 

Yes, you could use the BIOS flash and proceed to overclock it to near GTX levels, however you won't match its performance what with disabled pipes and such. And watch the heat, I'm serious guys you could very easily end up frying your GS.

 

Dunno. I take no responsibility for this link.

http://www.notebookforums.com/thread151471.html

 

Interesting article, but it's really vague. The pictures help a little bit, but not a whole lot.

 

I have not done it either way, but it seems to me like the BIOS change would be a lot easier than the method in that link