I bought a computer off of Ebay for $100 with the hopes to get it running good (with some upgrades) for me to game with. Its a Dell Dimension E510 running windows xp. I have had countless issues with it and no matter what trouble shooting I go through I cannot figure out what is wrong. Let me start with what is wrong....when I boot up it gets to the dell logo and the white bar at the bottom loading bios will not complete it halts at about 25%. Because it freezes I cannot access the bios nor windows. Due to suggestions I tried resetting the bios by removing the cmos battery. When I did that it would not go to the logo screen but either would be a blank screen with a blinking cursor...or it would be a black screen that says x300xt bios p/n 113-A33-437-102 and not move any further. The diagnostic lights indicate a solid number 1 and number 4 light for the x300 screen....and for the other (bios freeze) the 1 2 3 lights are lit solid green. The fans work, the hard drive works (tried it in another system), the ram is brand new just bought it (yes this error occured before I switched the RAM). I also tried unplugging the cd drives and no change. What do you think is wrong or what else should I try? When I first got it, it would sometimes do these errors, and sometimes boot to windows...its random, but now it seems to be stuck between these two errors I explained.