can I use an old hard drive with new computer components

Solution

The hard drive you have will not have the drivers for the new motherboard installed so you can't just plug it in and have it boot up. That's why you have to do a fresh install - so it will install the correct drivers for the new motherboard.

You will need a new PSU with the correct connectors. There's more to it than just the connectors. Its highly likely that your existing PSU wouldn't supply the power needed even if you could find or make adapters. Also don't skimp on the PSU. Everything else in...


 
the hard drive already has windows xp will that be a problem... also I am installing a new mother board and I cannot hook my power supply up to it is there an adaptor for this issue it has an 8 pin atx 12 v and a 24 pin atx what gives
 

The hard drive you have will not have the drivers for the new motherboard installed so you can't just plug it in and have it boot up. That's why you have to do a fresh install - so it will install the correct drivers for the new motherboard.

You will need a new PSU with the correct connectors. There's more to it than just the connectors. Its highly likely that your existing PSU wouldn't supply the power needed even if you could find or make adapters. Also don't skimp on the PSU. Everything else in the box depends on clean reliable power to operate and you can damage existing and/or new components with poor power.
 
Solution