MSI X79A User Guide - Page 43

Memory channel A and B voltage. Refer to DDR_C/D.

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Chapter 1 BATT + MS-7760 Voltage Check Point Lite These voltage checkpoint are used to measure the current system voltages. A multimeter (not included) will be required to check voltages. To check the voltage, set the voltmeter switch to "DC", put the positive lead (red) on the postivtive point of the voltage source point and the negative lead (black) on the GND (ground) point. The following table describes the voltage check points. PCH_1P1V DDR_C/D DDR_A/B CPU_SA CPU_IO CPU_CORE GND Point PCH_1P1V DDR_C/D DDR_A/B CPU_SA CPU_IO CPU_CORE GND Description PCH 1.1 voltage. The PCH voltage is the voltage supplied to the Platform Controller Hub. Memory channel C and D voltage. The DDR memory voltage is the voltage supplied to the DDR memory modules on the mainboard. Lower memory timings may require higher voltages to maintain system stability. Memory channel A and B voltage. Refer to DDR_C/D. CPU system agent voltage (iMC). The CPU SA voltage is the voltage supplied to the IMC (Integrated Memory Controller) on the CPU. Higher overclocks may require a higher CPU SA voltage to maintain stability. CPU IO voltage (Uncore). The CPU IO voltage is the voltage supplied to the Uncore on the CPU. Higher overclocks may require a higher CPU IO voltage to maintain stability. CPU core voltage. The CPU core voltage is the voltage supplied to the CPU core. Higher overclocks may require higher CPU core voltages to maintain stability. Ground 1-33

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1-33
MS-7760
Chapter 1
Voltage Check Po±nt L±te
These voltage checkpo±nt are used to measure the current system voltages. A mult±meter
(not ±ncluded) w±ll be requ±red to check voltages. To check the voltage, set the voltmeter
sw±tch to “DC”, put the pos±t±ve lead (red) on the post±vt±ve po±nt of the voltage source
po±nt and the negat±ve lead (black) on the GND (ground) po±nt. The follow±ng table
descr±bes the voltage check po±nts.
BATT
+
CPU_CORE
CPU_IO
CPU_SA
DDR_A/B
PCH_1P1V
DDR_C/D
GND
Po±nt
Descr±pt±on
PCH_1P1V
PCH 1.1 voltage. The PCH voltage ±s the voltage suppl±ed to
the Platform Controller Hub.
DDR_C/D
Memory channel C and D voltage. The DDR memory voltage
±s the voltage suppl±ed to the DDR memory modules on the
ma±nboard. Lower memory t±m±ngs may requ±re h±gher voltages
to ma±nta±n system stab±l±ty.
DDR_A/B
Memory channel A and B voltage. Refer to DDR_C/D.
CPU_SA
CPU system agent voltage (±MC). The CPU SA voltage ±s the
voltage suppl±ed to the IMC (Integrated Memory Controller)
on the CPU. H±gher overclocks may requ±re a h±gher CPU SA
voltage to ma±nta±n stab±l±ty.
CPU_IO
CPU IO voltage (Uncore). The CPU IO voltage ±s the voltage
suppl±ed to the Uncore on the CPU. H±gher overclocks may
requ±re a h±gher CPU IO voltage to ma±nta±n stab±l±ty.
CPU_CORE
CPU core voltage. The CPU core voltage ±s the voltage suppl±ed
to the CPU core. H±gher overclocks may requ±re h±gher CPU
core voltages to ma±nta±n stab±l±ty.
GND
Ground