Lenovo ThinkCentre M90a Gen 3 Hardware Maintenance Manual page 57

15
Serial (COM1) connector
17
DisplayPort out connector
19
Ethernet connector
21
USB 3.2 connectors Gen 1
23
Radar card connector
25
Memory slot (DDR4 DIMM1)
27
Headset connector
29
USB 3.2 connector Gen 2
31
Clear CMOS (Complementary Metal Oxide
Semiconductor) / Recovery jumper
M90a Pro Gen3
16
SATA2 (SATA 3.0)
18
HDMI in and out connector
20
USB-C (3.2 Gen 2) connector
22
Speaker connector
24
Memory slot (DDR4 DIMM2)
26
Card reader connector
28
USB 3.2 connector Gen 2
30
USB 3.2 connector Gen 2
32
Coin-cell battery
.
Chapter 6 Hardware removal and installation
51