Yes, the motherboard (4x) will run with an AGP card at 8x.
Thanks Stemnin: I think this is only true if the card is 8X/4X compatible. I have read that an 8X-only card will not run on a 4X mobo.
I have checked out a promising AGP card: the GeForce 6200 [Asus N6200/TD/128] but I cannot find any information on what resolutions this card is capable of. Does anyone know if it has widescreen 1440 x 900 capability?
All AGP 8x cards have been backwards compatible in my experience.
Same here. Get yourself a decent AGP card from newegg. Heres a good one.
My buddy at work just bought one of these and its pretty nice.
BFG Tech BFGR78256GSOC GeForce 7800GS 256MB 256-bit GDDR3 AGP 4X/8X Video Card - Retail
You can't beat that with a stick. One of the best AGP cards for $159 is about the best deal of the day really. Annnnd its the OC one even Life Time Warrantee too.
edit: I just realized that you may have to upgrade your powersupply for this card also. Unless you have a fair one. This is taken from newegg.
"CPU with processor speed of 700MHz or higher
128MB of RAM
CD or DVD-ROM drive
An available AGP 2.0 slot or higher
35MB available hard disk space (50MB for full installation)
A minimum 400W system power supply (with 12V current rating of 20A or more)
An AGP compliant motherboard. Some motherboards violate the AGP specification and therefore this card may not physically fit in some systems
An available hard disk drive power dongle (smaller floppy disk drive connector is not sufficient)"