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Hard Drive Port
Under ordinary circumstances, it is not necessary to
access the hard drive port. The pin locations are listed
1 2 3 4 5 6 7
Signal Segment
Table 4-9. Hard Drive Pin Assignments
Signal Segment
Pin Number
Signal
1
GND
2
A+
3
A-
4
GND
5
B-
6
B+
7
GND
Power Segment
Pin Number
Signal
1
V33
2
V33
3
V33
4
GND
5
GND
6
GND
7
V5
8
V5
9
V5
10
GND
11
Reserved
12
GND
13
V12
14
V12
15
V12
and illustrated below in the event of hard
replacement.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Power Segment
Description
2nd mate
Differential signal pair A from Phy
2nd mate
Differential signal pair B from Phy
2nd mate
Description
3.3V power
3.3V power
3.3V power, pre-charge. 2nd mate
1st mate
2nd mate
2nd mate
5V power, pre-charge, 2nd mate
5V power
5V power
2nd mate
1st mate
12V power, pre-charge, 2nd mate
12V power
12V power
Hard Drive Port
4
46
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