Table 8. Components on the server rear view (continued)
AC power LED (green)
5
DC power LED (green)
6
Power supply error LED (yellow)
7
Power supply unit 2
8
Power supply unit 1
9
1
PCIe slots (slot 1-2, 8-11):
Install PCIe adapters into these slots. Following are detailed descriptions of each slot:
• Slot 1: PCI Express 3.0 x16 (supports PCIe switch card)
• Slot 2: PCI Express 3.0 x8 (supports RAID adapters for SATA/SAS drives)
• Slot 8: PCI Express 3.0 x8 (supports RAID adapters for SATA/SAS drives)
• Slot 10: PCI Express 3.0 x16
• Slot 11: PCI Express 3.0 x16 (supports PCIe switch card)
For more information, see "System-board connectors" in ThinkSystem SR850P Maintenance Manual for the
location of the slots, and "PCIe riser-card and adapter replacement" in ThinkSystem SR850P Maintenance
Manual for information about installation and removal.
2
PCIe riser-card (slot 3-5):
Install a full-height PCIe riser-card into this slot. Following are the PCIe riser-cards supported by this server.
• x8/x8/x8 PCIe full-height riser assembly provides:
– Slot 3: PCI Express 3.0 x8
– Slot 4: PCI Express 3.0 x8
– Slot 5: PCI Express 3.0 x8
• x8/x8/x8ML2 PCIe full-height riser assembly provides:
– Slot 3: PCI Express 3.0 x8
– Slot 4: PCI Express 3.0 x8
– Slot 5: Customized slot for x8 ML2 adapter
• x8/x16ML2 PCIe full-height riser assembly provides:
– Slot 3: PCI Express 3.0 x8
– Slot 4: Not available
– Slot 5: Customized slot for x16 ML2 adapter
• x16/x8 PCIe full-height riser assembly provides:
– Slot 3: PCI Express 3.0 x16
– Slot 4: Not available
– Slot 5: PCI Express 3.0 x8
3
M.2 backplane (slot 6):
Install M.2 backplane to this slot. See
M.2 backplane" on page 86
ThinkSystem SR850P Setup Guide
22
"Install the M.2 backplane" on page 88
for more details.
USB 3 (USB 3.0)
14
Serial connector
15
VGA connector
16
XClarity Controller network connector
17
NMI button
18
and
"Install an M.2 drive in the