Hey, I've been having a problem that's been making my skull crack. I'm trying to figure out why this PCI GeForce 2 MX400 64 MB DDR will not work in this PC133 GfXcel motherboard. When I insert the card and start the PC up, it sorta powers up, with the fans and LEDs going, but it won't go to the POST or boot up. It just sits there making a quiet hum. First I thought it was my BIOS settings, so I messed around with them, changed the default Graphics Adapter to PCI instead of AGP (It doesn't even have an AGP slot), but no results turned up. So, if anyone has any suggestions, please say so. This is bugging me like crazy. If you want to know the rest of the specifications, look below: 600 MHz Celeron 4 GB Hard Drive IDE Master, 6.5 GB Hard Drive IDE Slave 384 MB SD RAM Windows XP Pro PC133 GfXcel Motherboard with SiS 6xx Chipset Using most up to date version of its BIOS Again, thanks for any help.