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
-HDDDETECTI
30
PDD15
I/O
60
GND
Ground
2-8 System Board
Summary of Contents for ThinkPad 770
Page 1: ...05L1739 S05L 1739 00...
Page 6: ...vi...
Page 10: ...x Preface...
Page 148: ...IBM Part Number 05L1739 Printed in the United States of America...