My son's computer, made by ABS technology, had intermittent turn on for a while. It finally will not turn on at all. The computer is about 6 years old and the CPU runs at about 700 Mhz. The power supply is an SH 250 watt unit with 4 large connectors, 2 small connectors and the connection to the main board. I plugged in an old ATX 200 watt power supply and it turned on when the start button was pressed. I believe the problem with the starting is the power supply and am looking to purchase a replacement. The power supply I tried does not have the correct dimensions or connectors and I would like to get one with a higher power rating. The fuse in the old power supply is good and beyond that, troubleshooting becomes questionable. Are there any items I should be aware of when purchasing the new supply other than physical dimensions and mounting holes? I assume the CPU operating voltage is determined on the main board.. Wally ========================= The list's FAQ's can be seen by sending an email to PCWorks-request@xxxxxxxxxxxxx with FAQ in the subject line. To unsubscribe, subscribe, set Digest or Vacation to on or off, go to //www.freelists.org/list/pcworks . You can also send an email to PCWorks-request@xxxxxxxxxxxxx with Unsubscribe in the subject line. Your member list settings can be found at //www.freelists.org/cgi-bin/lsg2.cgi/l=pcworks . Once logged in, you have access to numerous other email options. The list archives are located at //www.freelists.org/archives/pcworks/ . All email posted to the list will be placed there in the event anyone needs to look for previous posts.