Rear view
The rear of the server provides access to several connectors and components.
| Callout | Callout |
|---|---|
| 1 Ethernet connectors on the LOM adapter (available on some models) | 2 XClarity Controller network connector |
| 3 VGA connector | 4 USB 3.0 connectors (2) |
| 5 NMI button | 6 Power supply 1 |
| 7 Power supply 2 (available on some models) | 8 PCIe slot 5 (on riser 2) |
| 9 PCIe slot 6 (on riser 2) | 10 PCIe slot 4 (with a serial port module installed on some models) |
| 11 PCIe slot 1 (on riser 1) | 12 PCIe slot 2 (on riser 1) |
| 13 PCIe slot 3 (on riser 1) | 14 Rear 3.5-inch drive bays (2) |
1 Ethernet connectors on the LOM adapter (available on some models)
The LOM adapter provides two or four extra Ethernet connectors for network connections.
The leftmost Ethernet connector on the LOM adapter can be set as XClarity Controller network connector. To set the Ethernet connector as XClarity Controller network connector, start Setup utility, go to and select Shared. Then, go to Shared NIC on and select PHY card.
2 XClarity Controller network connector
Used to attach an Ethernet cable to manage the system using XClarity Controller.
3 VGA connector
Used to attach a high-performance monitor, a direct-drive monitor, or other devices that use a VGA connector.
4 USB 3.0 connectors (2)
Used to attach a device that requires a USB 2.0 or 3.0 connection, such as a keyboard, a mouse, or a USB storage device.
5 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.
6 Power supply 17 Power supply 2 (available on some models)
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.
8 9 10 11 12 13 PCIe slots
You can find the PCIe slot numbers on the rear of the chassis.
Your server supports PCIe slot 5 and PCIe slot 6 when two processors are installed.
Do not install PCIe adapters with small form factor (SFF) connectors in PCIe slot 6.
Observe the following PCIe slot selection priority when installing an Ethernet card or a converged network adapter:
| Number of installed processors | PCIe slot selection priority |
|---|---|
| One processor | 4, 2, 3, 1 |
| Two processors | 4, 2, 6, 3, 5, 1 |
PCIe slots 1, 2, and 3 on riser 1:
There are five different riser cards that can be installed in riser 1.
Type 1
Slot 1: PCIe x16 (x8, x4, x1), full-height, half-length/full-height, full-length
Slot 2: PCIe x16 (x8, x4, x1), full-height, half-length/full-height, full-length
Slot 3: PCIe x16 (x8, x4, x1), full-height, half-length
Type 2
Slot 1: PCIe x16 (x8, x4, x1), full-height, half-length/full-height, full-length
Slot 2: PCIe x16 (x8, x4, x1), full-height, half-length/full-height, full-length
Slot 3: ML2 x8 (x8, x4, x1), full-height, half-length
Type 3
Slot 1: PCIe x16 (x16, x8, x4, x1), full-height, half-length/full-height, full-length
Slot 2: Not available
Slot 3: PCIe x16 (x8, x4, x1), full-height, half-length
Type 4
Slot 1: PCIe x16 (x8, x4, x1), full-height, half-length/full-height, full-length
Slot 2: Not available
Slot 3: ML2 x16 (x16, x8, x4, x1), full-height, half-length
Type 5
Slot 1: PCIe x16 (x16, x8, x4, x1), full-height, half-length/full-height, full-length
Slot 2: PCIe x16 (x8, x4, x1), full-height, half-length/full-height, full-length
Slot 3: PCIe x16 (x16, x8, x4, x1), full-height, half-length
PCIe slot 4 on the system board: PCIe x8 (x8, x1), low-profile
Slot 5: PCIe x16 (x16, x8, x4, x1), full-height, half-length/full-height, full-length
Slot 6: PCIe x16 (x16, x8, x4, x1), full-height, half-length/full-height, full-length
14 Rear 3.5-inch drive bays (2)
Used to install up to two 3.5-inch hot-swap drives on the rear of the server. The rear 3.5-inch 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.