User Manual

4.1.1 M.2 2280 Module Connector
Table 11. describes the M.2 2280 connector signals. SSD support is provided via PCIe Gen4 NVMe
on CPU attached and PCIe Gen3 NVMe/SATA on PCH attached. See Figure 2. for location of
respective M.2 2280 module connectors.
Table 11. M.2 2280 Module (Mechanical Key M) Connector
Pin
Signal Name
Pin
Signal Name
74
3.3V (4A total for pins 74, 72, 70, 18, 16, 14, 12, 4, 2 (0.5A per pin))
75
GND
72
3.3V (4A total for pins 74, 72, 70, 18, 16, 14, 12, 4, 2 (0.5A per pin))
73
GND
70
3.3V (4A total for pins 74, 72, 70, 18, 16, 14, 12, 4, 2 (0.5A per pin))
71
GND
68
SUSCLK(32kHz) (O)(0/3.3V)
69
PEDET (NC-PCIe/GND-SATA)
66
Connector Key
67
N/C
64
Connector Key
65
Connector Key
62
Connector Key
63
Connector Key
60
Connector Key
61
Connector Key
58
N/C
59
Connector Key
56
N/C
57
GND
54
PEWAKE# (I/O)(0/3.3V) or N/C
55
REFCLKP
52
CLKREQ# (I/O)(0/3.3V) or N/C
53
REFCLKN
50
PERST# (O)(0/3.3V) or N/C
51
GND
48 N/C 49 PETp0/SATA-A+
46
N/C
47
PETn0/SATA-A-
44
N/C
45
GND
42
N/C
43
PERp0/SATA-B-
40
N/C
41
PERn0/SATA-B+
38 DEVSLP (O) 39 GND
36
N/C
37
PETp1
34
N/C
35
PETn1
32
N/C
33
GND
30
N/C
31
PERp1
28 N/C 29 PERn1
26
N/C
27
GND
24
N/C
25
PETp2
22
N/C
23
PETn2
20
N/C
21
GND
18
3.3V (4A total for pins 74, 72, 70, 18, 16, 14, 12, 4, 2 (0.5A per pin))
19
PERp2
16
3.3V (4A total for pins 74, 72, 70, 18, 16, 14, 12, 4, 2 (0.5A per pin))
17
PERn2
14
3.3V (4A total for pins 74, 72, 70, 18, 16, 14, 12, 4, 2 (0.5A per pin))
15
GND
12
3.3V (4A total for pins 74, 72, 70, 18, 16, 14, 12, 4, 2 (0.5A per pin))
13
PETp3
10 DAS/DSS# (I/O)/LED1# (I)(0/3.3V) 11 PETn3
8
PLN
9
GND
6
N/C
7
PERp3
4
3.3V (4A total for pins 74, 72, 70, 18, 16, 14, 12, 4, 2 (0.5A per pin))
5
PERn3
2
3.3V (4A total for pins 74, 72, 70, 18, 16, 14, 12, 4, 2 (0.5A per pin))
3
GND
1
GND
NOTE
PCIe Gen3 NVMe/SATA connector will support either NVMe or SATA based on Table 11 pin
configuration