I have the same laptop, bought around the same time actually.(Apr '06)
Anyway, I have seen people upgrade theirs to the GeForce Go 7600, but I have heard of a more recent upgrade with the 8400 (or is it the 8600?) series. I can't remember which 8 series card I heard about, but if you dig around you will find some more info. A good place to go is here: MXM upgrade linky
Ah, I found it: It is both the 8400 and the 8600 series...
|26 june 2008
There we go: DX10 is in the house. We will be starting to sell Type I 8400 cards and Type II 8600 cards today.
The 8400 will be our lowest cost, lowest effort card and at the same time our only Type I card. It does not require any modification on heatsinks on all Amilo MXM notebooks (identical to Alienware m5500, m5700, m5550 and m5750). It all boils down to 10 minuts quality time with your screwdriver and a new driver. These cards should also be compatible with some Amilo Pro Type I only notebooks out there.
The 8600 (512MB DDR2) is basically the same story but the added performance comes at the cost of a heatsink job to accomodate a large coil on the card. Being Type II, the card will not fit a Type I only notebook.
As both cards lack the threaded spacers of "standard" cards, we will provide a set of bolts and nuts for mounting during a transition period. We are currently sourcing the actual spacers. Once they are in, they will replace the bolts and nuts. We assume both cards to be suited for a wide range of brands (MSI, Asus Z81,Z84, Acer and Aopen are likely candidates) and we also look forward to tackle some of the "problem" brands again (Arima, Gateway,..). We have good hopes these cards will behave nicely there as well.
The x1800 cards remain in our inventory as the best price/performance option we have.
I might do the same thing with my m5500 once the warranty runs out in April '09. But then again, I will more than likely have a new laptop by then and will relegate this one to just being my Linux toy.
Anyway, good luck and let us know what happens if you go that route.