I have a Pentium 3 computer with Intel i810 motherboard. It is 866 Mhz, 512Mb SDRAM, 20+160 Gb harddisk which is originally showing 20+137 Gb, 16 Mb inbuilt video memory. I have only three PCI slots and not PCI-express or AGP. I want to install a graphics card to my computer. Please, tell me which graphics card should I buy which will support my computer and also I want to install a graphics card having memory of 128-256 Mb or it can be more also if my pentium 3 supports it. Also, do I need to upgrade my powersupply also to install a graphics card? I want to play games like Vice city, Underground. I am currently using Windows Xp.

I have an old P3 running a Radeon 7000 PCI (128mb) that works flawlessly on some of the older games.

Welcome to LQ.

PCI only : Usually you will have to disable the on-board graphics
in the BIOS, to add a PCI graphics card.
And disabling is most often not possible, I think.

So may be it's the mother board, that needs to be replaced ?


Furthermore, there are very few available PCI graphics cards.

..

This?

http://www.amazon.co.uk/ZOTAC-256MB-.../dp/B000VG4J64

Should be fast enough for Vice City and Underground (I assume that you mean Need for Speed). But as knudfl already has stated, you may become problems with the inbuilt card. I had that some time ago with a somewhat similar board, and there was no way to turn the onboard-chip off.

Thanks to all for their suggestions!