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Ref Des
Colour
Default Setting
1
J3F1
Black
Open
J3G1
Black
Open
J3H1
Black
Open
J4G1
Black
Open
J5A4
Red
Open
J6A1
Red
Open
J6A2
Black
Open
J6E3
Blue
Open
J6E7
Red
Open
J6F1
Blue
Open
J6F2
Blue
Open
J6F3
Blue
Open
J6F5
Red
Open
J6F7
Red
Open
J6F8
Black
Open
J8C1
Black
Open
J8C2
Black
Open
J8D2
Red
Open
J8D3
Red
Open
J8D4
Red
Open
1. The headers below are implemented primarily for board debug purposes. Please ensure that these are
correctly populated to ensure board operation.
A.6
SMBus Headers
Table 21.
SMBus Headers
Jumper Name
Ref Des
Location
Default
Setting
Description
EP_SMBus Header
J3D1
Open
Header for the PCH Endpoint Header
GBE_SMBus Header
J4J1
Open
GbE SMBus Header
PCH_SMLink1 Header
J4J2
Open
PCH SMLink Header
SMBus PCH - PCIe Slot
Header
J5B2
Open
Header on PCIe SMBus
SMBus PCH - DDR VREF
Header
J7D2
Open
Header on DDR VREF SMBus
SMBus PCH - LPC/TPM Header
J1B2
Open
Header on LPC/TPM SMBus
SMBus PCH - DIMM Header
J7E3
Open
Header on DIMM SMBus
SMBus PCH - Clock Header
J5A2
Open
Header on Clock SMBus
Crystal Forest—Technical Reference
Intel
®
Xeon
®
Processor E3-1125C with Intel
®
Communications Chipset 8910 Development Kit
User Guide
October 2012
40
Order No.: 328009-001US