You need to have WinXP SP1 installed (or Win2k SP3 with a slight registry modification) and a BIOS that supports 48-bit logical block addressing (LBA) which yours probably doesn't since it's an old motherboard. You could always check the manufacturers website though. I know that a lot of newer controller cards support 48-bit LBA, but I'm not sure if you still need to meet the OS requirements for that case. If you don't want to have to buy new stuff then you can always just partition the hard drive to make full use of its capacity. Otherwise, you'll be limited to 137GB.