54 Net finity 3500 -M20 – T ype 8657 Mod els 21 Y, 2 2Y, 31Y, 32Y ,
b. If the server has a hard disk drive installed in the
drive c age, disconnect the ca bles from the rear of
the dr ive.
c. Car efu lly pull the dr ive cage out of the server.
7. Remove the plastic bag containing the drive screws
from the outside rear of the server. Slide each drive
into the drive cage and secure it with four of the screws
provided in th e plastic bag.
8. Reinstall the cage in the server and s ecure it with the
sc r ew you r em ov e d pr ev i ou sl y.
9. Conne c t the ser v er SCSI an d power c ables to the re ar
of the drives.
Note: Make sure to route the SCSI cable s o that it
does not block the air flow to the rear of the
drives or ov er the microproces s ors.
10. If you have other options to install or remove, do so
now; otherwise, replace the support bracket and the
side cover (see “Installing the side cover” on page 60
fo r de tails).
Installing memory-module kits
Adding memory to the server is an easy way to make pro-
grams run faster. Yo u can incre ase the amount of memory
in the server by installing options called
memory-module
kits
. Each kit contains one industry-standard, dual-inline
memory module (DIMM). The server uses a noninterleaved
mem ory configuration.
The s er ve r co mes wit h a du al in li ne me mory mod ul e (D IMM)
installed on the system board in DIMM slot 4.
Notes:
1. When ins talling additional memory modu les, install the
second memory module in the connector labeled
DIMM3, the third in DIMM2, and the fourth in DIMM1.
(See the following illustration for memory connector
locations.)
2. Th e Netfinity 3500 M20 serve r support s 128MB,
256MB, and 512MB DIMMs. These DIMMs can be
installed in any memory slot. The server supports a
minimum of 128MB and a maximum of 2GB of system
memory. See the ServerProven list at
http://www.ibm.com/pc/compat for a list of memory
modules for use with the server.
3. Installing or removing DIMMs changes the configura-
tion information in the server. Therefore, after installing
or removing a DIMM, you must save the new configura-
tion information by using the Configuration/Setup Utility
program. When you restart the server, the system dis-
plays a message indicat ing that the me mory configura-
tion has changed. Start the Configuration/Setup Utility
program and select Save Set ting s. See “Configuring
the ser v er” on page 33 for more information.
4. The illustrations in this document might differ slightly
from yo ur hardware.