I have 4 slots, I plan to install 2GB each Slot on my Windows XP 32Bit, Dell optiplex GX620. this for the intention of doing video rendering using Sony Vegas 8 and Adobe Premiere CS4.
When im not doing video I would like to use GNS3 (for cisco router emulation) to help with my Cisco studies, this is because the routers images take up alot of processing power and I was thinking that more RAM would help to ease the load on the computer (even though it is processor load not memory load)
Is it wise and will the software/s use the RAM or is it a waste of money in doing so.
Yeah, you have to be careful. You have a 4GB limit and 4 slots, so it's likely you have a 1GB/slot limit. If you can verify that a 2GB stick will show up properly and run then the 2 x 2GB is preferable. Some mobos have problems with four sticks and it wouldn't surprise me if the 945G was one of them.