Is it possible to replace a case wire?

[Azureth]

So we're pretty sure we know why my friends computer is having problems, the wire for the PWR button has been chewed up, probably by a cat. Is there anything that can be done?

 

[Sinclair]

Cut off the damaged portion and either solder the shorter portion back on or put an new wire segment in place of it?

 

[Ockie]

Pretty simple to re-wire. You can buy new pigtails from sites like frozen cpu.