Lenovo ThinkSystem SR645 User Manual

ThinkSystem SR645 Quick Start
In the box
 Server
 Rail kit*
 Cable management arm*
 Material box, including items such as accessory kit, power cords*
and documentation
Note: Items marked with asterisk (*) are available on some models
only.
If any item is missing or damaged, contact your place of purchase.
Ensure that you retain your proof of purchase. They might be required
to receive warranty service.
First glance
Front view:
Note: Your server might look different from the following illustrations.
Figure 1. Server model with 8 x 2.5-inch drive bays and pull-out LCD
diagnostics panel
Figure 2. Server model with 8 x 2.5-inch drive bays
Figure 3. Server model with 10 x 2.5-inch drive bays
Figure 4. Server model with 4 x 2.5-inch drive bays
Figure 5. Server model with 4 x 3.5-inch drive bays
Drive status LED
Drive activity LED
LCD diagnostics panel Diagnostics panel
Power button with power
status LED
Network activity LED (for
OCP 3.0 Ethernet
adapter)
System ID button with
system ID LED
System error LED
USB 2.0 connector with
XClarity Controller
manangement
USB 3.1 Gen 1 connector
Rack latch (right)
External diagnostics
connector
Pull-out information tab VGA connector (optional)
Drive bays Rack latch (left)
Rear view:
Figure 6. Rear view with one PCIe slot and two 2.5-inch rear drive
bays
Figure 7. Rear view with two PCIe slots and two 7mm rear drive bays
Figure 8. Rear view with two PCIe slots
Figure 9. Rear view with three PCIe slots
PCIe slots
Rear drive bays
Power supplies NMI button
VGA connector USB 3.1 Gen 1 connectors
System error LED
XClarity Controller network
connector
System ID LED
Ethernet connectors on
OCP 3.0 Ethernet adapter
(optional)

Lenovo ThinkSystem SR645 Specifications

General

Product Type	Server
Memory Slots	32 DIMM slots
RAID Support	RAID 0, 1, 10, 5, 50, 6, 60
Processor	AMD EPYC
Memory	Up to 4TB
Storage Controller	RAID 0/1/10/5/6
Network Interface	1GbE and 10GbE options
Operating System Support	Windows, Linux, VMware
Form Factor	2U Rack

Summary

First glance

Front view overview

Overview of front panel components including buttons, LEDs, drive bays, and rack latches.

Rear view overview

Overview of rear panel components including PCIe slots, drive bays, power supplies, and connectors.

System setup and configuration

Server specifications and support

Storage and networking capabilities

Details storage options for front/rear bays and internal M.2 drives, plus networking connectors.

Dimensions and weight

Details the physical dimensions and weight of the server.

Processor support

Lists supported processors and socket type for the server.

Memory specifications

Outlines memory slots, minimum/maximum capacity, and types of supported memory modules.

Support resources

Provides links to Lenovo Press, forums, support, and compatibility information.