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1
19
2.2.2 CPU and SYS FAN Connector
The fan power connector is for additional thermal requirements. The pin assignments
of SYS_FAN1, SYS_FAN2, SYS_FAN3, SYS_FAN4 and CPU_FAN1 are listed in
the following table.
SYS_FAN1
4
1
4
4
2.2.3 P1_DIMMA1, P1_DIMMA2, P1_DIMMA3, P1_DIMM_A4 : DDR4 Slot
There are 4 DDR4 channel onboard, support DDR4 2666/2400/2133, max 64GB
Each channel 16GB.
1
19
4
1
4
Pin No.
P1_DIMM_A1
P1_DIMM_A3
©Vecow UMBC-1100 User Manual
7
7
7
SYS_FAN2
1
Pin No.
1
1
3
7
7
7
1
Definition
DDR4 Channel A
DDR4 Channel B
1
4
CPU_FAN1
2
1
1
7
1
7
7
7
1
8
2
1
1
1
1
8
2
7
10
10
1
1
10
1
1
7
Definition
GND
Fan speed sensor
2
3
1
4
5
U4
U1
U4
U1
U9
U5
U9
U5
U13
U10
U13
U10
22
25
U18
U14
U18
U14
1
R1
R9
R1
R9
4
R10
R2
R10
R2
L1
L2
L3
L4
L3
L4
L1
L2
1
7
8
2
4
1
2
1
7
1
7
1
7
7
1
8
2
1
1
1
1
8
2
7
10
10
1
1
1
10
1
7
Pin No.
P1_DIMM_A2
P1_DIMM_A4
GETTING TO KNOW YOUR UMBC-1100
2
30
8
2
2
8
2
8
2
8
1
1
1
1
1
7
7
7
7
SYS_FAN3
1
10
10
1
10
1
10
1
4
Pin No.
Definition
2
+12V (1.5A max)
4
Fan PWM
L5
L8
L1
L4
R1
R13
R10
R22
7
8
R11
R23
R12
R24
1
1
P1_DIMMA4
P1_DIMMA3
P1_DIMMA2
P1_DIMMA1
2
30
8
2
2
8
2
8
2
8
1
1
1
1
1
7
7
7
7
1
10
10
1
10
1
10
1
4
Definition
DDR4 Channel A
DDR4 Channel B
24
12
11
SYS_FAN4
1
4
1
11
15
10
6
5
1
1
4
24
12
11
1
4
1
12
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