IBM IntelliStation M Pro 6219, Installation Manual

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- A round SCSI cable connects external SCSI devices to the integrated SCSI
controller on the system board. For more information about connecting
SCSI devices, see the SCSI documentation.
Installing memory modules
Adding memory to your computer is an easy way to make programs run faster. You
can increase the amount of memory in your computer by installing memory
modules. Your IntelliStation M Pro computer uses industry-standard PC2100
double-data-rate (DDR) dual inline memory modules (DIMMs).
Notes:
1. The system board contains four DIMM connectors and supports two-way
memory interleaving.
2. The DIMM options available for your computer are 128 MB, 256 MB, 512 MB,
and 1 GB memory modules . Your computer supports a minimum of 256 MB
and a maximum of 4 GB of system memory.
3. The amount of usable memory will be reduced depending on the system
configuration. A certain amount of memory must be reserved for system
resources. The BIOS will display the total amount of installed memory and the
amount of configured memory.
4. Your computer comes with two 128 MB, 256 MB, or 512 DIMMs, (for a total of
256 MB, 512 MB, or 1024 MB memory) installed in the DIMM 1 and DIMM 2
memory connectors. When you install additional DIMMs, be sure to install them
as a pair in DIMM connectors 3 and 4.
5. DIMMs must be installed in matched pairs. The first pair of DIMMs you install in
DIMM 1 and DIMM 2 memory connectors must be the same size, speed, type,
and technology. You can mix compatible DIMMs from various manufacturers. If
you install a second pair of DIMMs in DIMM 3 and DIMM 4 memory connectors,
they do not have to be the same size, speed, type, and technology as the
DIMMs you installed in DIMM 1 and DIMM 2 memory connectors. However, the
size, speed, type, and technology of the DIMMs you install in DIMM 3 and
DIMM 4 memory connectors must match each other.
6. Install only 133 MHz (memory bus), 2.5 V, 184-pin, double-data-rate (DDR) 266,
PC2100, unbuffered synchronous dynamic random-access memory (SDRAM)
with error correcting code (ECC) DIMMs. These DIMMs must be compatible
with the latest PC2100 SDRAM unbuffered DIMM specification. For a list of
supported options for your computer, go to http://www.ibm.com/pc/ on the World
Wide Web; then, select your country and navigate to the list of options for your
computer.
Complete the following steps to install a DIMM:
1. Review the safety information beginning on page v, “Installation guidelines” on
page 15, and “Handling static-sensitive devices” on page 16.
2. Turn off the computer and all attached devices (see “Turning off the computer”
on page 32); then, disconnect all power cords and external cables.
3. Remove the side cover (see “Removing the side cover” on page 17).
4. Remove the support bracket (see “Removing and installing the support
bracket” on page 18).
5. You might find it easier to install memory modules if you rotate the drive cage
out of the computer. Grasp the drive cage and rotate it until it locks into place.
Chapter 2. Installing the hardware
27