Miscellaneous Jumper Settings; Miscellaneous Jumper/Resistor Settings - Intel Xeon E3-1125C User Manual

Jumper
Name
Core
Oscillator
Power Strap
(GPIO30)
Flash Sec
Descriptor
Override Low
(GP33)
DMI Mode
(GPIO53)
Top Block
Swap
(GPIO55)
BIOS
Recovery
Strap
(PCH_GP46)
A.5

Miscellaneous Jumper Settings

Table 19.

Miscellaneous Jumper/Resistor Settings

Jumper Name
EP JTAG Enable
GPIO25 DDR3 Voltage
Select
PCH WDT Enable
CPU Fan Override
(CPU_FAN_CTRL)
PCH Fan Override
(PWM2_PCHFAN)
VTT_SA_VID Select
(VTT_SA_CPU_VID0)
THRMTRIP Clear
Serial Port Selection
(Port 1)
SIO Enable
(LPC_FRAME_SIO_N)
® ®
Intel Xeon Processor E3-1125C with Intel
User Guide
38
Ref Des Color
Location
J1H6 Blue
J1G4 Blue
R2G37(PU) N/A
R2G46(PU) N/A
J5A3 Blue
Ref Color
Des
Locatio
n
J6D1 Black
J9C2 Black
J4A1 Black
J7D1 Black
J3J2 Black
J6K2 Black
J6E1 Black
J3A3 Black
J3A2 Black
®
Communications Chipset 8910 Development Kit
Crystal Forest—Technical Reference
Default
Setting
Closed Open: VCC1P0_STBY (external)
Closed: SFI Out (internal)
Open Open: Normal
Closed: Security Override
Pull Up Pull Up: DC Coupling
Pull Down: AC Coupling
Pull Up Pull Up: Normal
Pull Down: Swap Top Block (BIOS)
Open Open: Normal Mode
Closed: BIOS Recovery Mode
Default
Setting
Open 3-pin header for Endpoint JTAG enable/
disable
Shunt 1-2: PCH JTAG only
Shunt 2-3: EP JTAG only
Open: PCH & EP JTAG
Open Open: VDD1P5_DDR is 1.5V (default)
Closed: VDD1P5_DDR is 1.35V
Open When closed, this header enables the board
to reset the board when the WDT times out
Open Open: Manual Control Full Speed
Closed: PWM Control
Shunt [1-2] Open: PWM Control
Closed: Full Speed
Shunt [2-3] Shunt [1-2]: 0.8V
Shunt [2-3]: 0.89V
Shunt [1-2] Open: Clear THRMTRIP LED
Closed: Normal
Open Open: SIO Serial <-> Serial Port #1
Closed: Intel
89xx Series (Serial Port #2) <-> Serial Port
#1
Shunt [1-2] Open: Disable SIO
Closed: Enable SIO
Description
Description
®
Communications Chipset
continued...
October 2012
Order No.: 328009-001US