Hi! I got a PC at a garage sale for 30$ with a modern printer, tv and safe. It's a compaq presario s4300cl or nx (no idea, all stickers are scraped off except for "compaq"). I currently have Windows 7 Ultimate 32 bit on it, but i'm downgrading to Windows XP SP3. Which games can this PC play? It has a pentium 4 and 512MB of DDR memory. I have alot of old graphics cards/RAM that i'll check out if I can use. The resolution is 1024 × 768 I think.