I just bought a Dell Dimension 2400 with a Celeron 2.4gig processor, 512 meg DR SDRAM@333mhz, 80gig h/d, and Integrated Intel 3D AGP graphics. I can't run HL2 and the pc hangs every time. I'm told the integrated graphics can't handle the job (no surprise). I'm also told that adding a decent video card is tricky - something about dummying the system into thinking it has two monitors(???). I really need some help/advise about installing a decent video card so I can run HL2. Some advise about a good card to stick in the system would be a big help too. I'd appreciate any help I can get.
I think you're SOL on the video card, for I was looking at the specs and it doesn't look like you have a AGP slot for a Video Card (Although I'm not 100% sure on this, maybe someone else can shed some light on this). You can tell by opening the case and if you have a AGP slot it will be the very first one and offset from the other PCI slots, if you don't have one then you are definitely SOL on upgrading video card. FYI - Celerons aren't meant for gaming, so this computer is basically meant for school/work/surfing the internet.