65
Pin
Signal
Pin
Signal
Pin
Signal
35
SD-(12)
47
SD-(7)
59
SRSI-
36
SD-(13)
48
SDP0-
60
SMSG-
37
SD-(14)
49
Ground
61
SSEL-
38
SD-(15)
50
Ground
62
SCD-
39
SDP1-
51
TERMPWR
63
SREQ-
40
SD-(0)
52
TERMPWR
64
SIO-
41
SD-(1)
53
No connection
65
SD-(8)
42
SD-(2)
54
Ground
66
SD-(9)
43
SD-(3)
55
SATII-
67
SD-(10)
44
SD-(4)
56
Ground
68
SD-(11)
Remaining pins connect to ground.
J64 - MCBL340, Internal Wide Ultra2 SCSI
Same as “J63”.
Jumper Functions
The following tables lists important connector information.
Jumper
Description
W4
BIOS is flashable when jumpered
W5-W7
Routes outer USB port to AGP port when pins 2-3 are jumpered
W9
Clears CMOS when pins 2-3 are jumpered
W11
Enables on-board audio if jumpered
W12
When closed, sets processor speed in BIOS
J16-J22
PCI expansion slots
J22
PCI expansion slot (shared)
J24
ISA expansion slot (shared)
J27
AGP expansion slot
J31-J36
DIMM memory module sockets
J38
Channel A Wide Ultra2 SCSI termination
J39
Channel B Wide Ultra2 SCSI termination
J52, J59, J60, J62
Processor frequency
J15, J29, J30
Host bus frequency