Kevin T wrote:
My Compaq Presario computer is acting up and I'm afraid its toast.
By "acting up" what do you mean? Most of the parts on the machine should be fine, but your monitor, disk drive, or CD/DVD could be wearing out.
The other really high possibility it you've sucked in enough dust, pet dander, hair, and other crap into it it's overheating. If it's making noises figure out what's making the noise and you may be able to fix it with a $5 can of compressed air.
Without knowing what you're talking about it's pretty hard to say the "lifespan". I have a Mac Mini in the next room close to 10 years old so 3 years isn't end-of-life but it could be end-of-useful-life. I have another Pentium 4 Shuttle in a box close to that age that works just fine, it just doesn't perform well for anything but browsing and email.
As others have said spending $200-300 bucks to fix a three year old machine doesn't make sense unless it's a high end one, and your average Compaq Presario isn't. If you're getting systems errors, etc, you could get a whole new lease on life with a backup, reformat, and reload.