Complete the following tasks in order on Office$1$:

Connect the missing $8-$pin CPU power cable connector to the motherboard.

Replace the bad memory module.

Use the PC tools on the Shelf to test for the memory module that is not functioning.

Replace the bad memory module with the known good module on the Shelf.

Install a new SATA CD$/$DVD drive and connect the power and data cables.

Install the drive in one of the empty drive bays.

Connect the SATA data cable from the CD$/$DVD drive to the motherboard.

Connect the SATA $15-$pin power cable to the CD$/$DVD drive.

Power on the Office$1$ computer and add the Brother HL$-2140$ on CorpServer printer as the default printer.