Four-Socket Upgradable - Lenovo ThinkSystem SR950 Setup Manual

Table 12. Location of the three processors and 36 supported memory module slots (viewed from the front)
Not populated
CPU 1 and DIMM 1-12
Table 13. Location of the nine supported PCIe slots (viewed from the rear)
PCIe 1
PCIe 2
PCIe 3
PCIe 4
PCIe 5
Four-socket performance / storage rich, four processors
This configuration comes with four processors, requires at least two 1100/1600-watt PSUs, and supports up
to:
• 48 memory modules.
• 13 rear PCIe slots.
See the following tables for the location of the supported components.
Table 14. Location of the four processors and 48 supported memory module slots (viewed from the front)
CPU 3 and DIMM 25-36
CPU 1 and DIMM 1-12
Table 15. Location of the 13 supported PCIe slots (viewed from the rear)
PCIe 1
PCIe 2
PCIe 3
PCIe 4
PCIe 5

Four-socket upgradable

These configurations allow a simple upgrade to eight-socket configurations in the future, while support up to
12 drives and 15 rear PCIe slots. The upper tray slot requires a upper tray filler.
3. This slot is blank if a 2 x16 riser is installed.
Upper tray filler
3
3
PCIe 6 PCIe 7
Upper tray filler
3
3
PCIe 6 PCIe 7
CPU 4 and DIMM 37-48
CPU 2 and DIMM 13-24
PCIe 8 PCIe 9
(ML2) (LOM)
CPU 4 and DIMM 37-48
CPU 2 and DIMM 13-24
PCIe 10
PCIe 11
PCIe 12
PCIe 13
PCIe 8 PCIe 9
(ML2) (LOM)
.
Chapter 1 Introduction
15