
Chapter 2: Installation
SMB
A System Management Bus
header is located at J22. Connect
the appropriate cable here to uti-
lize SMB on your system.
SMB Power (I2 C)
Connector
I2 C Connector (J24), located be- tween the PWR ForceOn Header and the PWR Fault header, moni- tors the status of PWR Supply, Fan and system temperature.
Fan Header Pin Definitions
(J22)
| Pin | 
 | 
| Number | Definition | 
| 1 | Data | 
| 2 | GND | 
| 3 | CLK | 
| 4 | NC | 
Caution: These fan headers are DC power.
SMB PWR
Pin Definitions (J24)
| Pin # | Definition | 
| 1 | Clock | 
| 2 | Data | 
| 3 | N/A | 
| 4 | N/A | 
| 5 | N/A | 
| 
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PWR SMB
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 | J32 | 
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 | JPF | 
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 | J1B4 | 
 | Force PWR ON | ||
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 | Fan6 Fan5 | 
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| KB/ | 
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 | PWR | 
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| Mouse | 
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| J9 | 
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 | DIMM 1B (Bank 1) | 
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| USB0/1 | 
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 | DIMM 1A (Bank 1) | 
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| COM1 | J6 | 
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 | DIMM 2B (Bank 2) | 
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| 
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 | DIMM 2A (Bank 2) | 
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| ParrallelPortJLAN1 | 
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 | DIMM 3B (Bank 3) | 
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 | DIMM 3A (Bank 3) | 
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 | DIMM 4B (Bank 4) | 
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| J23 | 
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 | DIMM 4A (Bank 4) | 
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| VGA | 
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| J5 | 
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| GLAN1 | 
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| Fan7 | 
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 | PWR | ||
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 | J24 | 
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 | SMBus | |
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| CPU 1 | 
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| CPU 2 | 
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| PW | JP12 | 
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| Fault | 
 | PWR | 
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| 
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 | 3rd PS Alarm | J1D1 | 
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| 
 | JP13 | 1 | 
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| 
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| 
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| 
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 | JF1 | 
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 | JP15 JD1 | 
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 | Reboot | 
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| 
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 | Opt. Enable | 
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| 
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 | Fan2 | 
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 | JOH1 | 
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GLAN2
| 
 | JPG1 | 
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 | VGA | |
| 
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 | Enable | |
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| RAGE- | 
 | J15 | 
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 | X8  | ||
| X | 
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 | J16 | 
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 | X8  | |
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| GLAN | 
 | J17 | X4  | 
| CTLR | 
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| 82546 | 
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Super I/O
North
Bridge
ICH5R
J20
| Clr | 
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| CMOS | COM2 | 
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| JBT1 | JWD | 
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| WD Enable | 
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 | BIOS | 
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| 8 | 
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| 
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| IPMI | 
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 | SI/O | 
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 | Alrm | Reset | 
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 | JL1CH Intru | |||
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 | Fan3 | 
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| Floppy | IDE2 | IDE1 | |||
| JP8 | J4 | J3 | |||
| 
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 | J11 | 
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 | A | 
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 | USB4 | 
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| 
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 | J14 | 
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 | JPA1 SCSI | 
 | SCSICH | 
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| Enable | 
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 | Enable | 
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| 
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 | 7902 | 
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| GLAN | 
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 | Ultra320 | 
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| 
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 | JPL1 | 
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 | SCSI | 
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| 
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 | J13 | 
 | 100 MHz | 
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 | PXH | 
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| 
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 | CTRL | 
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| 
 | Battery | 
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| 
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| 
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 | J12 | 
 | 100 MHz ZCR | 
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| 
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 | J22 | JS2 | 
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| 
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 | JPA2 | 
 | SCSI CHA Term. Ena | 
 | JA1 | 
 | 
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 | ||||||
| 
 | 
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 | WOR | JWOR | 
 | 
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 | SMBUS | 
 | SATA1 | 
 | 
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| 
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 | JPA3 | 
 | SCSI CHB Term. Ena | 
 | 
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 | ||||
| 
 | 
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 | 
 | 
 | 
 | Speaker | 
 | 
 | 
 | 
 | JS1 | 
 | Ultra 320 SCSI CH B | 
 | 
 | 
 | 
 | Fan4 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | WOL | JWOL | 
 | 
 | JD2 | USB2/3 | SATA0 | JA2 | 
 | 
 | 
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 | |||||
| 
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SMB
