Computer goes into power save mode during XP install?

I'm adding a new hard drive to an older Dell Dimension 4600. During XP install the computer goes into power save mode at the same exact point each time. The other components of the CPU are original from the factory. The original hard drive crapped out which is why a new one is going in.

First i thought it was the video card but then why would the whole computer go into power save mode and why would it happen at the same exact point of installation. It occurs right before the user info/security key is to be added. It says there is 34 minutes left of installation and thats when it shuts down each and every time.

Computer goes into power save mode during XP install?internet security software

try setting in control panel / power options , to never or always on

Computer goes into power save mode during XP install?moto guzzi

Dell goes to very minimum with power supplies you need to make sure you have a sufficient power supply or you could burn up your MB, IF its 2005-2001 i believe Dell had its own PS form factors so you cannot use just any power supply or you will burn something out.