For a pentium d, 55*C to 60*C is the preferred load temperature. If you go higher (60*C-75*C) the fans will spin up to higher speeds. Anything above 70*-75*C is unsafe and may cause problems and...

55*C is not normal for startup temps of the video card, so that's why it's speeding up. As long as you can play games without hitting 85-95*C you'll be fine. Spray the computer with compressed air to...

as the person above me said, those are your options, but, a bios update may be necessary. if it fails, ur pc is screwed. i don't personally recommend upgrading an oem pc, but if u can do it, congrats.

More than likely one of the slots is under the keyboard, and requires a little more digging to uncover. While you look for this second slot, install the one gig in place of the 512mb in the slot, and...