I have a 450 Watt pwr supply, and my computer has i think a 250 or 350, and it has a AMD Duron 1.19 GHz, so my qustion is if I would put the 450 in would it mess anything up.
yeah it voids the warranty. so if your not computer savy. your probably best off to take it to a computer service and have them do it. then again you could just get help from people o the forum