Appendix A
Pin
Signal
21
S21 (+ATN)
22
S22 S22
23
S23 (+BSY)
24
S24 (+ACK)
25
S25 (+RST)
26
S26 (+MSG)
27
S27 (+SEL)
28
S28 (+C/D)
29
S29 (+REQ)
30
S30 (+I/O)
31
S31 (+DB 8)
32
S32 (+DB 9)
33
S33 (DB 10)
34
S34 (DB 11)
IDE
One IDE connection exists inside on the Legacy I/O Board. The cable connects to
both the diskette drive and DVD. If no IDE drives are present, an IDE cable
should not be connected. If only one IDE drive is installed, it must be connected
at the end of the cable.
Table A-12. IDE Connector Pinout
Pin
Signal
1
RSTDRV
2
GND
3
DD7
4
DD8
5
DD6
6
DD9
Pin
Signal
55
S55 (-ATN)
56
S56
57
S57 (-BSY)
58
S58 (-ACK)
59
S59 (-RST)
60
S60 (-MSG)
61
S61 (-SEL)
62
S62 (-C/D)
63
S63(-REQ)
64
S64 (-I/O)
65
S65 (-DB 8)
66
S66(-DB 9)
67
S67 (-DB 10)
68
S68 (-DB 11)
39
40
Figure A-8. IDE Connector
Pin
Signal
21
DRQ
22
GND
23
DIOW
24
GND
25
DIOR
26
GND
Specifications
1
2
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