Dell Dimension 4300 - Manual (Page 18)

11. Carefully replace the drive bay cover.
You do not need to replace the cover insert.
12. Connect a power cable to the drive.
13. See the documentation that came with the drive for instructions on connecting a drive cable to the drive.
14. Connect your computer and devices to their electrical outlets, and turn them on.
15. Install any drivers required for the drive as described in the documentation that came with the drive.
Replacing the Microprocessor
1. Shut down the computer .
2. Turn off any attached devices and disconnect them from their electrical outlets.
3. Disconnect the computer power cable from the wall outlet, and then press the power button to ground the system board.
4. Open the computer cover.
5. Disconnect the cooling fan power cable from the FAN connector on the system board.
6. Disconnect the +12-VDC P2 DC power cable from the 12VPOWER connector on the system board.
7. Lift up the airflow shroud.
HINT: Your computer uses cable-select drive cables. This means that the device connected to the end connector of the drive cable is the master device
and the device connected to the middle connector is the slave device. Be sure the jumper setting on the new device is set for "cable select" (see the
documentation that came with the drive for information).
NOTICE: To connect a network cable, first plug the cable in to the network wall jack and then plug it in to the computer.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in " Safety Instructions ."
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the network wall jack.