Table of Contents
Advertisement
Notes:
• All DIMMs to be installed must be the same type with the same capacity, frequency, voltage, and ranks.
• If the rank of installed DIMMs is one rank, rank sparing mode is not supported. If the rank of installed
DIMMs is more than one rank, follow the installation rules listed in the following tables.
The following table shows the DIMM population sequence for rank sparing mode when only one processor
(CPU1) is installed.
Table 14. Rank sparing mode with one processor
Total
DIMMs
1
1
2
3
4
5
1
6
1
The following table shows the DIMM population sequence for rank sparing mode when two processors
(CPU1 and CPU2) are installed.
Table 15. Rank sparing mode with two processors
Total
DIMMs
1
2
2
3
4
5
2
6
2
7
2
8
2
9
1
2
10
1
2
11
1
2
12
1
2
Install a DIMM
Use this information to install a DIMM.
"Read the
installation
Guidelines" on
page 59
114
ThinkSystem ST550 Maintenance Manual
Processor 1
2
3
3
3
2
3
2
3
2
3
2
3
Processor 1
3
4
5
3
3
4
3
4
3
4
3
4
3
4
5
3
4
5
3
4
5
3
4
5
3
4
5
3
4
5
for this task"
4
4
4
4
4
4
Processor 2
6
7
8
8
8
8
6
8
6
7
8
"Power off
the server
on page 12
5
6
5
5
5
6
9
10
11
12
10
10
9
10
9
10
9
10
11
9
10
11
9
10
11
9
10
11
9
10
11
12
9
10
11
12
9
10
11
12
"ATTENTION:
Static Sensitive Device
Ground package before opening"
on page 60
Total
DIMMs
1
2
3
4
5
6
Total
DIMMs
2
3
4
5
6
7
8
9
10
11
12
Hide quick links:
Advertisement
Table of Contents
