EDIT: ...sorry. forgot that the i810E chipset is probably used in more than 1 mobo. probably not the right one then. I'd suggest what everyone else is about opening up your computer. You're gonna have to do it anyway to replace it. But if you do
open it up, and find out that there are white PCI slots, you can read on.
According to PCstats.com
Originally Posted by PCstats.com
WS133 i810E Motherboard Review:
- 6 PCI / 0 ISA / 0 AGP / 1 AMR slots
that's the right motherboard, looks like you need a PCI card. That's kinda bad, since PCI was, for the most part, replaced by PCI-E.
I think that your best bet would be a Radeon X1300 PCI
. I noticed it just today on Newegg, so I don't really know too much about it. Looks to be decent, but I don't know too much about many PCI cards. You should notice a performance difference from whatever you're upgrading from, but I can't guarantee that it will run many ganes maxed out graphically. It looks to be better than the FX5200 PCI though. The X1300's got Pixel Shader 3.0, whereas the FX5200 has 2.0a. It's also got good (for PCI standards) clock speeds: 450MHz Core and 533MHz Memory, with 4 fragment pipelines and 128-bit memory. If you want, you can look for yourself and try to find a PCI card, but there's not really much out there. All the high-profile cards are made for PCI-E.
Hope this helps a little.