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INSTALLATIONS
MB990 User’s Manual
17
CN3: COM1 and COM2 Serial Ports
[
Pin #
Signal Name
RS-232
R2-422
RS-485
1
DCD
TX-
DATA-
2
RX
TX+
DATA+
3
TX
RX+
NC
4
DTR
RX-
NC
5
Ground
Ground
Ground
6
DSR
NC
NC
7
RTS
NC
NC
8
CTS
NC
NC
9
RI
NC
NC
10
NC
NC
NC
CN5: DVI-D and HDMI Connector
Signal Name
Pin #
Pin #
Signal Name
DATA 2-
1
16
HOT POWER
DATA 2+
2
17
DATA 0-
Shield 2/4
3
18
DATA 0+
DATA 4-
4
19
SHIELD 0/5
DATA 4+
5
20
DATA 5-
DDC CLOCK
6
21
DATA 5+
DDC DATA
7
22
SHIELD CLK
NC
8
23
CLOCK +
DATA 1-
9
24
CLOCK -
DATA 1+
10
SHIELD 1/3
11
DATA 3-
12
DATA 3+
13
DDC POWER
14
A GROUND 1
15
Summary of Contents for MB900
Page 1: ...MB990 Intel 6th Generation Core Q170 PCH ATX Motherboard USER S MANUAL Version 1 0...
Page 4: ...iv MB990 User s Manual This page is intentionally left blank...
Page 9: ...INTRODUCTION MB990 User s Manual 5 Board Dimensions...
Page 18: ...INSTALLATIONS 14 MB990 User s Manual This page is intentionally left blank...
Page 20: ...INSTALLATIONS 16 MB990 User s Manual Connector Locations on MB990...