Mitsubishi Electric Apricot Owner's Handbook Manual page 146

Fan Headers J4J3 and J1J1 (L and P)
These headers are identical.
Pin
1
2
3
SCSI Controller Activity Light Headers J4J2 and J1J2 (M and O)
These headers are identical.
Pin Signal
1 Return
2 Hard disk active
Server Management Header J4J1 (N)
Pin Signal
1 SMI#
2 I2CCLK
3 GND
4 KEY
5 PWROFF#
6 I2CDATA
7 LPOK
8 KEYUNLK
9 NMI
10 3.3 V
11 RESET#
12 GND
13 GND
14 KEY
15 SECURE
16 GND
17 INTRUD
18 RESERVED
19 KEY
20 GND
T e c h n i c a l I n f o r m a t i o n
Signal
GND (ground)
+12 V
Fan sense
Pin
3
4
Type Description
Input System management interrupt
2
Output I C clock (8 MHz)
Power Electrical ground
No connection, pin missing
Output Power supply off (active low)
2
I/O I C data signal
Input Host line power okay
Input Keyboard unlock
Input Nonmaskable interrupt
Input 3.3 V power
Output Reset baseboard
Power Electrical ground
Power Electrical ground
No connection, pin missing
Input Host in secure mode
Power Electrical ground
Input Chassis is open
No connection
No connection, pin missing
Power Electrical ground
Signal
Hard disk active
Return
OWNER'S HANDBOOK 5-31