Is It Possible To Play Online Games (pc) With Onboard Graphics?
and when i mean online games i mean Counter Strike: Source/Hl2 Mods/Gmod etc 
- i was just wondering if i should invest in the 9800Gtx Video Card or if i should just leave it.
its some Compaq motherboard chipset.
I ran Half Life 2 on my Geforce 8200 (integrated) before I got my 9600GT. It worked pretty good. Also, if you do buy a graphics card, just get the 9600GT. I play Oblivion 1680×1050 4x AA HDR with no problems, and Crysis 1680×1050 2x AA no problems.
Besides that, a 9800GTX could blow up your PSU (Power Supply Unit), so if you got a 9800, you’d have to buy a new power supply too.
You’re not going to have a chance running Source-based games with 98% of integrated GPUs. Some older games may run, but nothing made in the last few years.