MSI Z77A User Guide - Page 40

Ground, the Platform Controller Hub.

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Getting Started FV1: Voltage Checkpoints Connector (optional) 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, please use the included voltage checkpoint cables included in the mainboard package. Attach the positive lead of the multimeter to the voltage checkpoint cable and the negative lead to the ground connector. 7 GND GND PCH_1P05 VCC_DDR CPU_GFX CPU_VTT 1 VCCP Point GND (pin 6, pin 7) PCH_1P05 (pin 5) VCC_DDR (pin 4) CPU_GFX (pin 3) CPU_VTT (pin 2) VCCP (pin 1) Description Ground PCH 1.5 voltage. The PCH voltage is the voltage supplied to the Platform Controller Hub. Memory 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. The CPU_GFX voltage is the voltage supplied to the integrated graphics processor located on the CPU. 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 voltage is the voltage suppoied to the CPU core. Higher overclocks may require higher CPU core voltages to maintain stability. 1-30

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1-30
Gett±ng Started
FV1: Voltage Checkpo±nts Connector (opt±onal)
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, please use the ±ncluded
voltage checkpo±nt cables ±ncluded ±n the ma±nboard package. Attach the pos±t±ve lead of the
mult±meter to the voltage checkpo±nt cable and the negat±ve lead to the ground connector.
Po±nt
Descr±pt±on
GND (p±n 6, p±n 7)
Ground
PCH_1P05 (p±n 5)
PCH 1.5 voltage. The PCH voltage ±s the voltage suppl±ed to
the Platform Controller Hub.
VCC_DDR (p±n 4)
Memory 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.
CPU_GFX (p±n 3)
The CPU_GFX voltage ±s the voltage suppl±ed to the
±ntegrated graph±cs processor located on the CPU.
CPU_VTT (p±n 2)
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.
VCCP (p±n 1)
CPU core voltage. The CPU voltage ±s the voltage suppo±ed
to the CPU core. H±gher overclocks may requ±re h±gher CPU
core voltages to ma±nta±n stab±l±ty.
VCC_DDR
GND
1
7
PCH_1P05
CPU_GFX
CPU_VTT
VCCP
GND