Gigabyte GA-Z77X-UD4H Manual - Page 23

1-8 Onboard Buttons, Switches and LEDs F_USB30 F_AUDIO(H) F_PANEL(NH) BIOS Switch and BIOS LED InFd_UiScBa30tors F_AUDIO(H) F_PANEL(NH) The BIOS switch (SW4) allows users to easily select a different BIOS for boot up or overclocking, helping to reduce BIOS failure during overclocking. ThFe_ULSBE30D indicator (MBIOS_LED/BBIFO_ASUD_IOL(HE) D) shows which BIOS is active. F_PANEL(NH) F_UBSIBO30S Switch: SW4 F_AUDIO(H) F_USB30 1: Main BIOS (Boot from tDFh_BeA_UPmDOIROaT(iHn) BIOS) 1 F_PANEL(NH) BIOS Switcher (X58A-OC) F_PANEL(NH) 1 TPM DIP w/housing 1 23 DIP 1 23 DIP 1 1 23 DIP 1 1 23 DIP 1 1 23 DIP 1 1 23 DIP 1 1 23 1 1 F_USB30 2: Backup BIOS (Boot fromDF_BA_tUhPDOeIRObT(Ha)ckup BIOS) 1 1 BIOS Switcher (X58A-OC) M_SATA F_PANEL(NH) 1 Voltage measurement points(G1.Sniper 3) BIOS Switcher (SW4) TFP_MUBSBI3O0S LED Indicators: VoltDagBe_PmOeRasTurement module(X58A-OC) F_AUDIO(H) w/housing BBIOS_LED (The backup BIOS is active) 1 1 BIOS Switcher (X58A-OC) M_SATA F_PANEL(NH) PWM1 Switch (X58A-OC) 1 23 DIP TPM w/housing VoltDagBe_PmOeRasTurement module(X58A-OC) MBIOS_LED (The main BIOS is active) 1 1 BIOS Switcher (X58A-OC) M_SATA PWM1 SDwIPitch (X58A-OC) DIP 1 23 1 23 DIP TPM w/housing VoltDagBe_PmOeRasTurement module(X58A-OC) PCIe power connector (SATA)(X58A-OC) 1 BIOS S1w2it3cher (X58A-OC) PWM1 SDwIPitch (X58A-OC) 1 M_SATA DIP 1 23 1 23 DIP TPM w/housing VoltDagBe_PmOeRasTurement module(X58A-OC) PCIe power connector (SATA)(X58A-OC) 1 BIOS S1w2it3cher (X58A-OC) PWM1 SDwIPitch (X58A-OC) 1 M_SATA DIP 1 23 1 23 DIP Voltage Measurement Points TPM w/housing VoltDagBe_PmOeRasTurement module(X58A-OC) PCIe power connector (SATA)(X58A-OC) 1 BIOS S1w2it3cher (X58A-OC) PWM1 SDwIPitch (X58A-OC) 1 M_SATA 1 23 DIP DDIIPP 11 22 33 PCIe power connector (SATA)(X58A-OC) DIP 1 23 1 Users can use a multimeter to measure component voltages, incluVodltaingegmeVasCureOmeRnt Emo,duCle(PX5U8AV-OCT)T, VSA, 1C2 3PUPLL, M_SATA VDIMM, DDRVTT, and PCHIO. YouTwcP/hMaounsineg mploy following way to measPuCrIee pocwoermcopnnoecntoer (nSAtTAv)o(Xl5t8aA-gOeC)s. PWM SDwIPitch (X58A-OC) DIP 1 23 1 23 DIP PWM Switch (X58A-OC) 1 23 DDIIPP TPM w/housing Voltage measurement points(G1.SniperV3o)ltage measuremBeIOnSt mSowdituclhee(Xr5(S8AW-4O)C) VCORE PCIe power connector (SATA)(X58A-OC) PWM SDwIPitch (X58A-OC) DIP 1 23 1 23 11 22 33 Pin 1 DIP 1 23 Voltage measurement CPUVTT points(G1.SnipePr 3i)n PNCIoe.poweDr cBeoInfOinnSeciSttoiworit(ncShAeTrA(S)(WX548)A-OC) DIP Voltage measurement module(X58A-OC) DIP 1 23 Pin 1 1 Power 1 23 2 GND Voltage measurement points(G1.Sniper 3) BIOS Switcher (SW4) VSA PCIe power connector (SATA)(X58A-OC) DIDIPP 11 2233 11 DDIPIP 11 2233 11 Pin 1 Voltage measurement points(G1.Sniper 3) BIOS Switcher (SW4) 11 CPUPLL DB_PORT Pin 1 Voltage measurement points(G1.Sniper 3) VDIMM BIOS Switcher (SW4) Pin 1 Voltage measurement points(G1.Sniper 3) DDRVTT BIOS Switcher (SW4) Pin 1 Voltage measurement points(G1.Sniper 3) PCHIO BIOS Switcher (SW4) Pin 1 Steps: Connect the red lead of the multimeter to the pin 1 (Power) of a voltage measurement point and the black lead to the pin 2 (ground). BIOS Switcher (X58A-OC) 11 M_SATA F_USB30 F_AUDIO(H) F_PANEL(NH) - 23 - Hardware Installation