Displays No signal to monitor after putting in new hard drive

my monitor wont put out a signal after i installed a new harddrive. The monitor worked before i put it in amd im not sure if i've either not wired it up right internally or the jumper on the drive is different although they look like they are in the same place.
 

Mark56

Posts: 1,880   +4
Check all of your internal connections by removing connectors and reseating them. Check connections to the monitor on the back of the PC and that the monitor has power.