[sec1028]

My son has a storebuilt computer witha 600 Duron, a K7R board, a DVD rom, an old cdr burner. 250 watt power supply. When trying to add a new hard drive to supp his old one, the computer cut off immediately. We tried to put in the new drive alone and the same thing happened. We also tried a few other drives and the same thing happened. When we replaced the old drive alone it started up. We think it is in need of a higher wattage power supply. Do you thing we are correct? (We checked the cables and the set up all looks good).

 

[Terrister]

It sounds like an overloaded power supply.
Try this to see what size power supply you need.
http://www.jscustompcs.com/power_supply/Power_Supply_Calculator.php?cmd=AMD

 

[ebackhus]

Is the PSU a smaller box with the fan section jutting outward? Some prebuilt computer came with those and upgrading from that is difficult if not impossible.

 

[keymaker]

probably an antec 350watts power supply will solve the computer issue.

 

[sec1028]

Thank you for the replies.