ok... um... FRAG is pretty much the original xbox equivalent of a RROD, with slight and i mean really slight differences. FRAG can be from a variety of issues, but sadly they don't tend to provide error codes.
thanks for the advice, I decided to bring this to my friend who is good with this type of stuff, and I showed him your post, I'll update you on if we can fix it but if I can't I'm gonna have to get a new one, and I'll probably just turn this one into some kind of decoration so I can keep the sentimental value
you could swap out the motherboard and hard drive. if it is a 1.0-1.5 the case is completely compatible.