Hey guys, I decided to downgrade my GPU in my ASUS G50 VT-X5 because I wanted to get more battery life out of it. I downgraded from an Nvidia 9800m GS to an Nvidia 9300m GS. The difference in power consumption between the two is big. The 9800m GS gulps down a whopping 60 wats of power while the 9300m GS sips down a mere 13 watts. I assumed the power consumption difference would provide a huge improvement on battery life for my notebook, so I purchased a 9300m GS from Ebay that was pulled out of an ASUS X83VB-X2 and just recieved it today. I pulled the 9800m GS out of the MXM slot on the motherboard and popped in the 9300m GS. When I powered on the notebook, the LCD screen powered on, but the BIOS did not post. I have no idea why it didn't post. I assumed the 9300m GS is compatible with this motherboard, because it is an MXM GPU and it does physically fit into the MXM slot on the motherboard. The only thing I can assume is that the GPU is dead, but I'm truly not sure about this. If anyone can help me with this, I would REALLY appreciate it.