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Appendix A: Specifications
167
Pin
Signal Pin Signal
29 S29 (+REQ) 63 S63(-REQ)
30 S30 (+I/O) 64 S64 (-I/O)
31 S31 (+DB 8) 65 S65 (-DB 8)
32 S32 (+DB 9) 66 S66(-DB 9)
33 S33 (DB 10) 67 S67 (-DB 10)
34 S34 (DB 11) 68 S68 (-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.
39
40
1
2
Figure A-8. IDE Connector
Table A-12. IDE Connector Pinout
Pin Signal Pin Signal
1 RSTDRV 21 DRQ
2 GND 22 GND
3 DD7 23 DIOW
4 DD8 24 GND
5 DD6 25 DIOR
6 DD9 26 GND
7 DD5 27 IORDY
8 DD10 28 CSEL (1
KΩ p/d)
9 DD4 29 DACK
10 DD11 30 GND
11 DD3 31 IRQ
12 DD12 32 Reserved
(N/C)
13 DD2 33 DA1
14 DD13 34 Reserved
(N/C)
15 DD1 35 DA0
16 DD14 36 DA2
17 DD0 37 CS1P_L
18 DD15 38 DS3P_L
19 GND 39 DHACT_
L