Lenovo ThinkPad 770X Technical Reference Manual for the ThinkPad 770 - Page 30

Hard Disk Drive Connector

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Hard Disk Drive Connector The hard disk drive connected to the system board is removable. Figure 2-6 shows the pin assignments for the connector on the system board. Pin Signal I/O or Feature 1 DetectIn O 2 Jumper A NC 3 Jumper B O 4 Jumper C O 5 Jumper D O 6 RSTDRV O 7 GND Ground 8 PDD7 I/O 9 PDD8 I/O 10 GND Ground 11 PDD6 I/O 12 PDD9 I/O 13 GND Ground 14 PDD5 I/O 15 PDD10 I/O 16 GND Ground 17 PDD4 I/O 18 PDD11 I/O 19 GND Ground 20 PDD3 I/O 21 PDD12 I/O 22 GND Ground 23 PDD2 I/O 24 PDD13 I/O 25 GND Ground 26 PDD1 I/O 27 PDD14 I/O 28 GND Ground 29 PDD0 I/O 30 PDD15 I/O Pin Signal I/O or Feature 31 GND Ground 32 NC NC 33 -PDREQ I 34 GND Ground 35 -PDIOW O 36 GND Ground 37 -PDIOR O 38 GND Ground 39 PIORDY I 40 CSEL O 41 -PDACK O 42 GND Ground 43 IRQ14HDD I 44 -IOCS16 I 45 PDA1 O 46 -PDIAGHDD O 47 GND Ground 48 PDA0 O 49 PDA2 O 50 -CS1P O 51 -CS3P O 52 -DASPHDD I 53 GND Ground 54 VCC5B Vcc 55 VCC5B Vcc 56 VCC5B Vcc 57 VCC5B Vcc 58 Reserved NC 59 -HDDDETECTI 60 GND Ground Figure 2-6. Hard Disk Drive Connector Pin Assignments 2-8 System Board

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Hard Disk Drive Connector
The hard disk drive connected to the system board is removable.
Figure
2-6 shows the pin assignments for the connector on the
system board.
Figure
2-6.
Hard Disk Drive Connector Pin Assignments
Pin
Signal
I/O or Feature
Pin
Signal
I/O or Feature
1
DetectIn
O
31
GND
Ground
2
Jumper A
NC
32
NC
NC
3
Jumper B
O
33
-PDREQ
I
4
Jumper C
O
34
GND
Ground
5
Jumper D
O
35
-PDIOW
O
6
RSTDRV
O
36
GND
Ground
7
GND
Ground
37
-PDIOR
O
8
PDD7
I/O
38
GND
Ground
9
PDD8
I/O
39
PIORDY
I
10
GND
Ground
40
CSEL
O
11
PDD6
I/O
41
-PDACK
O
12
PDD9
I/O
42
GND
Ground
13
GND
Ground
43
IRQ14HDD
I
14
PDD5
I/O
44
-IOCS16
I
15
PDD10
I/O
45
PDA1
O
16
GND
Ground
46
-PDIAGHDD
O
17
PDD4
I/O
47
GND
Ground
18
PDD11
I/O
48
PDA0
O
19
GND
Ground
49
PDA2
O
20
PDD3
I/O
50
-CS1P
O
21
PDD12
I/O
51
-CS3P
O
22
GND
Ground
52
-DASPHDD
I
23
PDD2
I/O
53
GND
Ground
24
PDD13
I/O
54
VCC5B
Vcc
25
GND
Ground
55
VCC5B
Vcc
26
PDD1
I/O
56
VCC5B
Vcc
27
PDD14
I/O
57
VCC5B
Vcc
28
GND
Ground
58
Reserved
NC
29
PDD0
I/O
59
-HDDDETECT
I
30
PDD15
I/O
60
GND
Ground
2-8
System Board