Intel G870 BX80623G870 User Manual

68

Datasheet, Volume 1

VCC

Processor core power rail

Ref

VCCIO

Processor power for I/O

Ref

VDDQ

Processor I/O supply voltage for DDR3

Ref

VCCAXG

Graphics core power supply.

Ref

VCCPLL

VCCPLL provides isolated power for internal processor PLLs

Ref

VCCSA

System Agent power supply

Ref

VIDSOUT

VIDSCLK

VIDALERT#

VIDALERT#, VIDSCLK, and VIDSCLK comprise a three signal serial 

synchronous interface used to transfer power management information 

between the processor and the voltage regulator controllers. This serial 

VID interface replaces the parallel VID interface on previous 

processors.

I/O

O

I

CMOS

VCCSA_VID

O

VCC_SENSE
VSS_SENSE

VCC_SENSE and VSS_SENSE provide an isolated, low impedance 

connection to the processor core voltage and ground. They can be 

used to sense or measure voltage near the silicon.

O

Analog

VAXG_SENSE

VSSAXG_SENSE

VAXG_SENSE and VSSAXG_SENSE provide an isolated, low 

impedance connection to the V

AXG 

voltage and ground. They can 

be used to sense or measure voltage near the silicon.

O

Analog

VCCIO_SENSE

VSS_SENSE_VCCIO

VCCIO_SENSE and VSS_SENSE_VCCIO provide an isolated, low 

impedance connection to the processor V

CCIO

 voltage and ground. 

They can be used to sense or measure voltage near the silicon.

O

Analog

VDDQ_SENSE

VSSD_SENSE

VDDQ_SENSE and VSSD_SENSE provides an isolated, low 

impedance connection to the V

DDQ 

voltage and ground. They can 

be used to sense or measure voltage near the silicon.

O

Analog

VCCSA_SENSE

VCCSA_SENSE provide an isolated, low impedance connection to 

the processor system agent voltage. It can be used to sense or 

measure voltage near the silicon.

O

Analog

VSS

Processor ground node

GND

VSS_NCTF 

Non-Critical to Function: These pins are for package mechanical 

reliability.