Installing Memory - IBM 8185 - ThinkCentre M50 - 256 MB RAM User Manual

The following illustration shows the locations of parts on the system board.

Installing memory

Your computer has four connectors for installing dual inline memory modules
(DIMMs) that provide up to a maximum of 4.0 GB of system memory.
When installing DIMMs, the following rules apply:
v System memory is divided into two channels (channel A and B). DIMM
v If DIMM connectors 1 and 3 (or 2 and 4) are filled with the same technology and
v Use 2.5 V, 184-pin, 333 MHz double data rate synchronous dynamic random
v Use 128 MB, 256 MB, 512 MB or 1.0 GB (when available) DIMMs in any
v DIMMs are 25.4 mm (1.0 inch) in height.
Note: Only DDR SDRAM DIMMs can be used.
1 Microprocessor
2 DIMM connector 1
3 DIMM connector 2
4 DIMM connector 3
5 DIMM connector 4
6 Power connector
7 Diskette drive connector
8 PATA primary IDE connector
9 PATA secondary IDE connector
10 SATA 1 IDE connector
connectors 1 and 2 are channel A, and DIMM connectors 3 and 4 are channel B.
size of memory, the system operates in dual channel mode.
access memory (DDR SDRAM).
combination.
11 SATA 2 IDE connector
12 Promise of value (POV) daughter card
(some models)
13 Clear CMOS/Recovery jumper
14 Battery
15 SCSI LED connector
16 PCI slots
17 Front panel audio connector
18 CD-ROM audio connector
19 AGP slot
Chapter 1. Types 8185, 8186, 8192, 8413, and 8430
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