The Corsair RM450? It's actually a pretty decent unit, so you're probably fine grabbing it. I guess it could handle pretty much any new GPU you decide to throw in there.
Uninstall the AMD Catalyst Manager, you probably had ATI drivers installed before anyway.
@slyraven57/">@@slyraven57 why are you even looking at a new card? You aren't going to find anything better; what you’ve got is honestly pretty decent for an AGP card...
Go to Start > Control Panel > Programs and Features and just wipe out the old drivers. If you were running an Nvidia card, they're usually listed as Nvidia graphics drivers; if it was ATI, you'll see the AMD Catalyst Manager.
Then just unplug everything, especially the power cord. It varies depending on your case, but the card is probably held in by one screw. Unscrew that, pop off the power connector if the old card had one, and pull the card out. You'll probably have to press or slide a little plastic tab at the end of the slot to get the card to release.
Pop the new card in, plug in the power connector (it should be a 6-pin, which your PSU should have, but if not, you can grab an adapter to turn a couple of Molex plugs into a 6-pin), screw it back in, and I guess that's pretty much it. Drivers are right here: http://support.amd.com/us/gpudownloa...w_vista32.aspx
If you're on 64-bit Windows, try here http://support.amd.com/us/gpudownloa...w_vista64.aspx
stormytiger57 said:I was looking at getting that MSI 7770 Power Edition, but some people were telling me it's pretty much useless for running modern games
You’re gonna need a new CPU since this one is pretty ancient. I guess you could grab a new GPU for now, but the processor will probably bottleneck it a bit. What motherboard are you running?
Look, I'd say go for the 6670—ideally with DDR5 memory. If you really want to step things up a bit, maybe look at a 6770 or a 7750. Honestly, anything more than that probably isn't worth your time.