2.Next, locate the hard disk drive ribbon cable that came with your computer. If you removed a drive from the vertical mounting position, the cable you disconnected from that drive should be strapped to the bottom of the subassembly by a tie wrap. Cut the tie wrap so you can access the connectors.
The hard disk drive ribbon cable has three connectors. The connector on one end goes to the system board. The other two connectors (closest together) go to the hard disk drives. Of these two connectors, you attach the middle one to the hard disk drive in the vertical position and you attach the end one to a hard disk drive in the lower horizontal bay.
As shown in the illustration below, there are two rows of holes in a hard disk drive connector. One of the holes is blocked with a plastic plug.
blocked hole
3.Notice the ribbon cable socket on the back of the drive you just installed; you see two rows of pins. In one of the rows, a pin is missing.
Installing and Removing Disk Drives |