Skip to main content

Rear view

The rear of the server provides access to several connectors and components.

Figure 1. Rear view of server models with eight PCIe slots
Rear view of server models with eight PCIe slots

Figure 2. Rear view of server models with 2.5-inch rear drive bays and six PCIe slots
Rear view of server models with a rear 2.5-inch drive bays and six PCIe slots

Figure 3. Rear view of server models with 3.5-inch rear drive bays and two PCIe slots
Rear view of server models with two rear 3.5-inch drive bays and three PCIe slots

Table 1. Components on the rear of the server
CalloutCallout
1 PCIe slot 1 (on riser 1)2 PCIe slot 2 (on riser 1)
3 PCIe slot 3 (on riser 1)4 PCIe slot 4 (on riser 2)
5 PCIe slot 5 (on riser 2)6 PCIe slot 6 (on riser 2)
7 PCIe slot 7 (on riser 3)8 PCIe slot 8 (on riser 3)
9 Power supply 210 Power supply 1
11 NMI button12 Serial port
13 USB 3.2 Gen 1 (5 Gbps) connectors (2)14 VGA connector
15 BMC management network connector16 Ethernet connectors on the OCP 3.0 Ethernet adapter(optional)
17 2.5-inch rear drive bays (4)18 3.5-inch rear drive bays (4)

1 2 3 4 5 6 7 8 PCIe slots

You can find the PCIe slot numbers on the rear of the chassis.

PCIe slots 1, 2, and 3 on riser 1:

There are four types of riser cards that can be installed in riser 1 slot.
FHFL: full-height, full-length; FHHL: full-height, half-length
Riser card 1PCIe slots
Type 1*

  • Slot 1: PCIe x16, FHFL

  • Slot 2: PCIe x16, FHFL

  • Slot 3: not available

Type 2*

  • Slot 1: PCIe x16, FHFL

  • Slot 2: PCIe x16 (x8, x4, x1), FHFL

  • Slot 3: PCIe x16 (x8, x4, x1), FHHL

Type 3

  • Slot 1: PCIe x16, FHFL

  • Slot 2: not available

  • Slot 3: not available

Type 4

  • Slot 3: PCIe x16, FHHL

Note
This riser card is for configuration with 3.5-inch rear bays.
Note

  • Riser card 1 of Type 1 or Type 2 needs to be connected to the system board. For detailed cable routing, see Riser cards.

PCIe slots 4, 5, and 6 on riser 2:

There are three types of riser cards that can be installed in riser 2 slot.
FHFL: full-height, full-length; LP: low-profile
Riser card 2PCIe slots
Type 1

  • Slot 4: PCIe x16, FHFL or LP

  • Slot 5: PCIe x16, FHFL or LP

  • Slot 6: not available

Type 2

  • Slot 4: PCIe x16, FHFL or LP

  • Slot 5: PCIe x16 (x8, x4, x1), FHFL or LP

  • Slot 6: PCIe x16 (x8, x4, x1), LP

Type 3

  • Slot 6: PCIe x16, LP

Note
This riser card is for configuration with 3.5-inch rear bays.

PCIe slots 7 and 8 on riser 3:

The server supports riser 3 if no rear bay is installed. The following two types of riser cards are supported:
FHFL: full-height, full-length
Riser card 3PCIe slots
Type 1

  • Slot 7: PCIe x16 (x8, x4, x1), FHFL

  • Slot 8: PCIe x16 (x8, x4, x1), FHFL

Type 2

  • Slot 7: PCIe x16, FHFL

  • Slot 8: PCIe x16, FHFL

Note

  • Riser card 3 of Type 1 or Type 2 needs to be connected to the system board. For detailed cable routing, see Riser cards.

9 10 Power supplies

The hot-swap redundant power supplies help you avoid significant interruption to the operation of the system when a power supply fails. You can purchase a power supply option from Lenovo and install the power supply to provide power redundancy without turning off the server.

On each power supply, there are three status LEDs near the power cord connector. For information about the status LEDs, see Rear view LEDs.

11 NMI button

Press this button to force a nonmaskable interrupt (NMI) to the processor. By this way, you can blue screen the server and take a memory dump. You might have to use a pen or the end of a straightened paper clip to press the button.

12 Serial port

Used to attach a device that requires serial connection for data transferring.

13 USB 3.2 Gen 1 (5 Gbps) connectors (2)

Used to attach a device that requires a USB 2.0 or 3.1 connection, such as a keyboard, a mouse, or a USB storage device.

14 VGA connector

Used to attach a high-performance monitor, a direct-drive monitor, or other devices that use a VGA connector.

15 BMC management network connector

Used to attach an Ethernet cable to manage the system using Lenovo ThinkSystem System Manager.

16 Ethernet connectors on the OCP 3.0 Ethernet adapter (optional)

Figure 4. OCP module (two connectors)
OCP module (two connectors)

Figure 5. OCP module (four connectors)
OCP module (four connectors)

Note

  • The OCP 3.0 Ethernet adapter provides two or four extra Ethernet connectors for network connections.

  • Any of the connectors (connector 1 by default) on the OCP module can function as a shared management connector.

17 2.5-inch rear drive bays (4)

Used to install up to four 2.5-inch hot-swap drives on the rear of the server. The 2.5-inch rear drive bays are available on some models.

The number of the installed drives in your server varies by model. The EMI integrity and cooling of the server are protected by having all drive bays occupied. The vacant drive bays must be occupied by drive bay fillers or drive fillers.

18 3.5-inch rear drive bays (4)

Used to install up to four 3.5-inch hot-swap drives on the rear of the server. The 3.5-inch rear drive bays are available on some models.

The number of the installed drives in your server varies by model. The EMI integrity and cooling of the server are protected by having all drive bays occupied. The vacant drive bays must be occupied by drive bay fillers or drive fillers.