Upgrading and Servicing Guide

Upgrading and Servicing Guide 7
Connecting the Parallel ATA Hard Disk Drive
Cables
A — Connect to primary hard drive
B — Connect to second hard drive (select models only)
C — Connect to PC motherboard
WARNING: For a second Parallel ATA
drive, make sure to connect the data
cable end labeled Master (A) to the
primary hard disk drive, and the
connector labeled Slave (B) to the
secondary hard disk drive. If the data
cable is not connected correctly, the PC
will not be able to locate the hard disk
drives and data may be lost.
7 Push the drive the rest of the way into the bay until
the drive snaps into place.
8 Complete the procedures to replace the front panel,
replace the side panel, and close the PC. See
“Opening and Closing the PC“ on page 1.
Adding Memory
Your PC comes with random access memory (RAM),
which temporarily stores data and instructions on your
PC. The PC ships with one or more memory modules,
but you can replace the existing memory module(s)
with higher-capacity ones.
The motherboard contains sockets for DDR DIMMs
(double data rate dual in-line memory modules). The
exact number of sockets and type of DDR memory
module depends on which model PC you have.
A DDR DIMM
To determine which type and speed of memory
module your PC uses, and for specific memory module
information and specifications, go to the Web site
listed in your Warranty and Support Guide and click
the Support link.
WARNING: Using the wrong type of
memory module could damage the
system.
Removing a Memory Module
1 Complete the procedures to prepare the PC and to
remove the side panel. See “Opening and Closing
the PC“ on page 1.
2 Gently lay the PC on its side.
3 Locate the memory sockets on the motherboard.
CAUTION: When handling a memory
module, be careful not to touch any of
the contacts. Doing so may damage the
module.
4 Move any cabling out of the way, if necessary.