Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows
the tray upside down.
Figure 19. Cable routing, SAS drive cables (upper tray with storage-board assembly)
Table 41. Cable routing, SAS drive cables (upper tray)
Cable
Routing
1 PCIe SAS interface
• From:
– Lower system board in upper compute tray, “PCIe/NVMe” connector (see
“System-board connectors” on page 283)
– Storage-board assembly in upper tray, “PCIe” connector (see “Storage-board-
assembly connectors” on page 284)
• To: Storage interposer, “PCIe” connector (see “Storage interposer connectors” on
page 289)
2 RAID interface for drive
backplane 4
• From: RAID card, “C3” connector (see “RAID card connectors” on page 290)
• To: Drive backplane, connector “SAS” (see “Drive backplane connectors” on page
291)
3 RAID interface for drive
backplane 5
• From: RAID card, “C2” connector (see “RAID card connectors” on page 290)
• To: Drive backplane, connector “SAS” (see “Drive backplane connectors” on page
291)
4 RAID interface for drive
backplane 6
• From: RAID card, “C1” connector (see “RAID card connectors” on page 290)
• To: Drive backplane, connector “SAS” (see “Drive backplane connectors” on page
291)
NVMe drive cables (upper tray)
Common drive cables are used by only NVMe drives.
48
ThinkSystem SR950 Setup Guide
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