PCI Connector
Pin Side B Side A
--- ------ ------
1 -12V TRST#
2 TCK +12V
3 Ground TMS
4 TDO TDI
5 +5V +5V
6 +5V INTA#
7 INTB# INTC#
8 INTD# +5V
9 PRSNT1# Reserved
10 Reserved +5V
11 PRSNT2# Reserved
12 Ground Ground
13 Ground Ground
14 Reserved Reserved
15 Ground RST#
16 CLK +5V
17 Ground GNT#
18 REQ# Ground
19 +5V (I/O) Reserved
20 AD[31] AD[30]
21 AD[29] +3.3V
22 Ground AD[28]
23 AD[27] AD[26]
24 AD[25] Ground
25 +3.3V AD[24]
26 C/BE[3]# IDSEL
27 AD[23] +3.3V
28 Ground AD[22]
29 AD[21] AD[20]
30 AD[19l Ground
31 +3 3V AD[181
32 AD[17] AD[16]
33 C/BE[2]# +3.3V
34 Ground FRAME#
35 IRDY# Ground
36 +3.3V TRDY#
37 DEVSEL# Ground
38 Ground STOP#
39 LOCK# +3.3V
40 PERR# SDONE
41 +3.3V SBO#
42 SERR# Ground
43 +3.3V PAR
44 C/BE[1]# AD[15]
45 AD[14] +3.3V
46 Ground AD[13]
47 AD[12] AD[11]
48 AD[10] Ground
49 Ground AD[09]
50 Connector Key
51 Connector Key
52 AD[08] C/BE[0]#
53 AD[07] +3.3V
54 +3.3V AD[06]
55 AD[05] AD[04]
56 AD[03] Ground
57 Ground AD[02]
58 AD[011 AD[00]
59 +5V (I/O) +5V (I/O)
60 ACK64# REQ64#
61 +5V +5V
62 +5V +5V
Video connector (All models except the Power Macintosh 9500)
Pin Signal name Description
--- ----------- ------------
1 RED.GND Red video ground
2 RED.VID Red video signal
3 /CSYNC Composite synchronization signal
4 SENSE0 Monitor sense signal 0
5 GRN.VID Green video signal
6 GRN.GND Green video ground
7 SENSE1 Monitor sense signal 1
8 NC No connection
9 BLU.VID Blue video signal
10 SENSE2 Monitor sense signal 2
11 GND CSYNC and VSYNC ground
12 /VSYNC Vertical synchronization signal
13 BLU.GND Blue video ground
14 HSYNC.GND HSYNC ground
15 /HSYNC Horizontal synchronization signal
Shell SGND Shield ground
Apple Accelerated Graphics Card (Power Macintosh 9500/120)
Pin Description Pin Description
--- ----------- --- -----------
1 Red ground 9 Blue video signal
2 Red video signal 10 Monitor sense 2
3 Composite synchronization 11 Synchronization ground
4 Monitor sense 0 12 Vertical synchronization
5 Green video signal 13 Blue ground
6 Green ground 14 Horizontal synchronization ground
7 Monitor sense 1 15 Horizontal synchronization
8 No connection
Serial port connector (Geoport)
Pin Name Function
--- ----- ---------
1 HSKo Handshake output
2 HSKi Handshake input or external clock
3 TxD* Transmit data *
4 Gnd Ground
5 RxD* Receive data *
6 TxD+ Transmit data +
7 GPi General-purpose input (wake up CPU or DMA handshake)
8 RxD+ Receive data +
9 +5V Power to external device (100 mA maximum)
ADB connector
Pin Name Description
--- ---- -----------
1 ADB Bidirectional data bus
2 PSW Power-on signal
3 +5V +5 volts
4 GND Ground
AAUI-15 Ethernet connector
Pin Description Pin Description
--- ----------- --- -----------
1 +5 V 8 +5 V
2 DI+ 9 DO+
3 DI* 10 DO*
4 Ground 11 Ground
5 CI+ 12 No connection
6 CI* 13 No connection
7 +5 V 14 +5 V
10BASE-T Connector (RJ-45 Connector)
------------------------------------
Contact Signal
------- ------
1 TD+
2 TD-
3 RD+
4 Not Used by 10BASE-T
5 Not Used by 10BASE-T
6 RD-
7 Not Used by 10BASE-T
8 Not Used by 10BASE-T
SCSI connectors
Pin number Pin number Signal Signal
(internal 50-pin) (external 25-pin) name description
----------------- ---------------- ----- -----------
2 8 /DB0 Bit 0 of SCSI data bus
4 21 /DB1 Bit 1 of SCSI data bus
6 22 /DB2 Bit 2 of SCSI data bus
8 10 /DB3 Bit 3 of SCSI data bus
10 23 /DB4 Bit 4 of SCSI data bus
12 11 /DB5 Bit 5 of SCSI data bus
14 12 /DB6 Bit 6 of SCSI data bus
16 13 /DB7 Bit 7 of SCSI data bus
18 20 /DBP Parity bit of SCSI data bus
25 * n.c. Not connected
26 25 TPWR +5 V terminator power
32 17 /ATN Attention
36 6 /BSY Bus busy
38 5 /ACK Handshake acknowledge
40 4 /RST Bus reset
42 2 /MSG Message phase
44 19 /SEL Select
46 15 /C/D Control or data
48 1 /REQ Handshake request
50 3 /I/O Input or output
20, 22, 24, 28, 30, 34, and all odd pins except pin 25, 7, 9, 14, 16, 18, and 24 GND Ground
Floppy disk connector
Pin Signal name Signal description
--- ----------- ------------------
1 GND Ground
2 PH0 Phase 0: state control line
3 GND Ground
4 PH1 Phase 1: state control line
5 GND Ground
6 PH2 Phase 2: state control line
7 GND Ground
8 PH3 Phase 3: register write strobe
9 n.c. Not connected
10 /WRREQ Write data request
11 +5V +5 volts
12 SEL Head select
13 +12V +12 volts
14 /ENBL Drive enable
15 +12V +12 volts
16 RD Read data
17 +12V +12 volts
18 WR Write data
19 +12V +12 volts
20 n.c. Not connected
RAM DIMM connectors
Pin Signal name Pin Signal name
--- ----------- --- -----------
1 VSS 85 VSS
2 DQ(0) 86 DQ(32)
3 DQ(1) 87 DQ(33)
5 DQ(3) 89 DQ(35)
6 VCC 90 VCC
7 DQ(4) 91 DQ(36)
8 DQ(5) 92 DQ(37)
9 DQ(6) 93 DQ(38)
10 DQ(7) 94 DQ(39)
11 Reserved 95 Reserved
12 VSS 96 VSS
13 DQ(8) 97 DQ(40)
14 DQ(9) 98 DQ(41)
15 DQ(10) 99 DQ(42)
16 DQ(11) 100 DQ(43)
17 DQ(12) 101 DQ(44)
18 VCC 102 VCC
19 DQ(13) 103 DQ(45)
20 DQ(14) 104 DQ(46)
21 DQ(15) 105 DQ(47)
22 Reserved 106 Reserved
23 VSS 107 VSS
24 Reserved 108 Reserved
25 Reserved 109 Reserved
26 VCC 110 VCC
27 /WE(0) 111 Reserved
28 /CAS(0) 112 /CAS(1)
29 /CAS(2) 113 /CAS(3)
30 /RAS(0) 114 Reserved
31 /OE(0) 115 Reserved
32 VSS 116 VSS
33 A(0) 117 A(1)
34 A(2) 118 A(3)
35 A(4) 119 A(5)
36 A(6) 120 A(7)
37 A(8) 121 A(9)
38 A(10) 122 A(11)
39 A(12) 123 A(13)
40 VCC 124 VCC
41 Reserved 125 Reserved
42 Reserved 126 B(0)
43 VSS 127 VSS
44 /OE(2) 128 Reserved
45 /RAS(2) 129 Reserved
46 /CAS(4) 130 /CAS(5)
47 /CAS(6) 131 /CAS(7)
48 /WE(2) 132 /PDE
49 VCC 133 VCC
50 Reserved 134 Reserved
51 Reserved 135 Reserved
52 DQ(16) 136 DQ(48)
53 DQ(17) 137 DQ(49)
54 VSS 138 VSS
55 DQ(18) 139 DQ(50)
56 DQ(19) 140 DQ(51)
57 DQ(20) 141 DQ(52)
58 DQ(21) 142 DQ(53)
59 VCC 143 VCC
60 DQ(22) 144 DQ(54)
61 Reserved 145 Reserved
62 Reserved 146 Reserved
63 Reserved 147 Reserved
64 Reserved 148 Reserved
65 DQ(23) 149 DQ(55)
66 Reserved 150 Reserved
67 DQ(24) 151 DQ(56)
68 VSS 152 VSS
69 DQ(25) 153 DQ(57)
70 DQ(26) 154 DQ(58)
71 DQ(27) 155 DQ(59)
72 DQ(28) 156 DQ(60)
73 VCC 157 VCC
74 DQ(29) 158 DQ(61)
75 DQ(30) 159 DQ(62)
76 DQ(31) 160 DQ(63)
77 Reserved 161 Reserved
78 VSS 162 VSS
79 PD(1) 163 PD(2)
80 PD(3) 164 PD(4)
81 PD(5) 165 PD(6)
82 PD(7) 166 PD(8)
83 ID(0) 167 ID(1)
84 VCC 168 VCC
L2 cache SIMM connector
Pin Signal Pin Signal Pin Signal Pin Signal
--- ----- ---- ------ --- ------ --- ------
1 +5 V 41 /TOEN 81 +3.3 V 121 /DOEN
2 GND 42 /TWEN 82 GND 122 /DWEN
3 D0 43 /ADV 83 D1 123 /ADSC
4 D2 44 A12 84 D3 124 /CSIZ(2)
5 D4 45 CSIZ(1) 85 D5 125 GND
6 D6 46 A14 86 D7 126 A13
7 GND 47 A16 87 GND 127 A15
8 D8 48 A18 88 D9 128 A17
9 D10 49 A20 89 D11 129 A19
10 D12 50 GND 90 D13 130 GND
11 D14 51 A22 91 D15 131 A21
12 GND 52 A24 92 GND 132 A23
13 +5 V 53 A26 93 +3.3 V 133 A25
14 GND 54 A28 94 GND 134 A27
15 D16 55 GND 95 D17 135 GND
16 D18 56 +5 V 96 D19 136 +3.3 V
17 D20 57 GND 97 D21 137 D33
18 D22 58 D32 98 D23 138 D35
19 GND 59 D34 99 GND 139 D35
20 D24 60 D36 100 D25 140 D37
21 D26 61 D38 101 D27 141 D39
22 D28 62 GND 102 D29 142 GND
23 D30 63 D40 103 D31 143 D41
24 GND 64 D42 104 GND 144 D43
25 +5 V 65 D44 105 +3.3 V 145 D45
26 GND 66 D46 106 GND 146 D47
27 T0 67 GND 107 T1 147 GND
28 T2 68 +5 V 108 T3 148 +3.3 V
29 T4 69 GND 109 T5 149 GND
30 T6 70 D48 110 T7 150 D49
31 GND 71 D50 111 GND 151 D51
32 T8 72 D52 112 T9 152 D53
33 T10 73 D54 113 T11 153 D55
34 T12 74 GND 114 T13 154 GND
35 T14 75 D56 115 T15 155 D57
36 GND 76 D58 116 GND 156 D59
37 +5 V 77 D60 117 +3.3 V 157 D61
38 GND 78 D62 118 GND 158 D63
39 CLK 79 GND 119 CPRES 159 GND
40 GND 80 +5 V 120 A11 160 +3.3 V
DAV connector
Pin Signal description Pin Signal description
--- ------------------ --- ------------------
1 Ground 31 Ground
2 Reserved 32 Vertical sync
3 Ground 33 Ground
4 Reserved 34 Reserved
5 Ground 35 Ground
6 Reserved 36 HRef
7 Ground 37 Ground
8 Reserved 38 DIR *
9 Ground 39 IIC Data *
10 Reserved 40 IIC Clock
11 UV bit 7 41 Ground
12 UV bit 6 42 Analog audio input left
13 UV bit 5 43 Analog audio input common
14 UV bit 4 44 Analog audio input right
15 UV bit 3 45 Ground
16 UV bit 2 46 Digital audio input
17 UV bit 1 47 Ground
18 UV bit 0 48 Digital audio output
19 Y bit 7 49 Ground
20 Y bit 6 50 Digital audio clock
21 Y bit 5 51 Ground
22 Y bit 4 52 Digital audio sync
23 Y bit 3 53 Ground
24 Y bit 2 54 S video input C component
25 Y bit 1 55 Video input ground
26 Y bit 0 56 S video input Y component
27 Ground 57 Video input ground
28 Line-locked clock 58 Reserved
29 Ground 59 Reserved
30 Clock reference qualifier 60 Reserved
S-video input and output connectors
Pin S-video input connector S-video output connector
--- ----------------------- ------------------------
1 Analog GND Analog GND
2 Analog GND Analog GND
3 Video Y (luminance) Video Y (luminance)
4 Video C (chroma) Video C (chroma)
5 I 2 C clock(Philips serial bus) *
6 +12 V at 250 mA maximum * *
7 I 2 C data (Philips serial bus) *