Software way to find different parts of the computer?

I don't think there was an AGP 7350LE anyway, though I could be wrong.
The power supply is what concerns me, prebuilt units have very weak power supplies (typically 250W, 300W that sort of range) and since they're not exactly high caliber builds either, it's highly recommended that you upgrade it unless we know what brand it is (although to be honest, I'd be very surprises if it's a good one in there anyway)

 

I wish i could do anything that is hardware related to my computer... but i can't open it cuz my dad is almost sure it's gonna voidd the warrenty. But my dad said today that he is interested in opening it too...

 

It's not going to void your warranty, open that thing up!

 

Opening the case usually doesn't void your warranty. If they use a case intrusion switch they might notice, but it's not often checked these days, usually it's just a case of 'has the hardware been changed?'