Appendix A Megarac G2 Feature Cable; Megarac G2 Feature Cable Layout - American Megatrends MegaRAC G2 User Manual

Appendix A

MegaRAC G2 Feature Cable Layout

Note: If you do not have an American Megatrends Olympus II (series 821) motherboard, you
cannot use the I2C connector to monitor the hardware health of the motherboard.
Note: If you do not use the chassis power on switch or chassis reset switch pins, you should
place a plastic cap on them so that they do not short your motherboard. Do not use a
standard jumper. It will short the connection.
PART NUMBER CBL-G2RAC821
All Connectors Must be Labeled
Chassis Power On Switch = "Power"
Motherboard Power On Jumper = "Power"
Chassis Reset Switch = "Reset"
Motherboard Reset Jumper = "Reset"
Motherboard I2C Connector = No Label
Where two cables come together (marked with the letter
crimped with a connector or spliced and soldered. In Either case, the cable
must be wrapped in non-conducting plastic.
Black (Ground)
Blue
Black (Ground)
A
A
Blue
Power Off #
Gray
A
Black (Ground)
A
Gray
Black (Ground)
All Wires Must Be 28 AWG, A Total Length of 15" Long and Twisted Together
MegaRAC G2 Feature Cable
Chassis
Power On
Switch
Motherboard
Power On
Jumper
1 2
I2C Clock
3 4
5 6
I2C Data
7 8
Berg Electronics
9 10
Discrete
Crimp-to-Wire
11
12 Ground
FCI Part Number
Reset #
Plastic Housing
Polarizing (Center) Key
15 16 Ground
65846-006
Tin-Lead Receptacles
17 18
47747-000
Ground 20
Chassis
Reset
Switch
Motherboard
Reset
Jumper
This cable is specifically
designed for use with the
American Megatrends
Olympus II (series 821)
motherboard only.
A ), cables can be
Berg Electronics
Discrete
Crimp-to-Wire
FCI Part Number
Latch Housing
65039-035
Tin-Lead Pins
75653-005
Berg Electronics
Discrete
Crimp-to-Wire
FCI Part Number
Latch Housing
65039-035
Tin-Lead Receptacles
47747-000
Yellow
Green
Black
Molex (Bottom View)
SPOX(tm) Connector
IDT Spring Box
Molex Part Number
22-44-6031
Pin Cap
Berg Electronics
Discrete
Crimp-to-Wire
FCI Part Number
Berg Electronics
Latch Housing
Discrete
65039-035
Crimp-to-Wire
Tin-Lead Pins
FCI Part Number
75653-005
Latch Housing
65039-035
Tin-Lead Receptacles
47747-000
Pin Cap
Berg Electronics
Discrete
Crimp-to-Wire
FCI Part Number
Latch Housing
65039-035
Tin-Lead Receptacles
47747-000
Appendix A : MegaRAC G2 Feature Cable 109
Motherboard
I2C
Connector