Gigabyte GA-Z87X-UD4H - Page 26

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Hardware Installation
3) ATX4P (PCIe Power Connector)
The power connector provide auxiliary power to the onboard PCI Express x16 slots. When two or more
graphics cards are installed, we recommend that you connect the SATA power cable from the power supply
to the ATX4P connector to ensure system stability.
Pin No. Denition
1 NC
2 NC
3 NC
4 GND
5 GND
6
GND
7 VCC
8 VCC
9 VCC
10
GND
11
GND
12 GND
13 +12V
14 +12V
15 +12V
F_USB30
F_AUDIO(H) DB_PORT
F_PANEL(NH) F_PANEL
(H61M-D2) ACPI_CPT (GA-IVB)
BIOS_PH (GA-IVB)
SMB_CPT (GA-IVB)
CLR_CMOS CI DIS_ME GP15_CPT (GA-IVB) XDP_CPU XDP_PCH (GA-IVB)
TPM w/housing
Voltage measurement module(X58A-OC)
PCIe power connector (SATA)(X58A-OC)
DIP
123
DIP
123
DIP
123
DIP
123
1
1
1
1
BIOS Switcher (X58A-OC)
PWM Switch (X58A-OC)
M_SATA
PWM Switch (SW1)(X79-UD7)
DIP
1 2 3 4 5
Voltage measurement points(G1.Sniper 3)
BIOS Switcher (SW4)
PCIe Control (Z87X-UP7)
DIP
1 2 3
4
DIP
1 2 3 4
DIP
1 2 3
4
DIP
1 2 3 4
ATX_12V_2X3
F_USB3 (Front Panel)
15
1
4) BAT (Battery)
 Thebatteryprovidespowertokeepthevalues(suchasBIOScongurations,date,andtimeinformation)
in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low
level, or the CMOS values may not be accurate or may be lost.
You may clear the CMOS values by removing the battery:
1. Turn off your computer and unplug the power cord.
2. Gently remove the battery from the battery holder and wait for one minute.
(Oruseametalobjectlikeascrewdrivertotouchthepositiveandnegative
terminalsofthebatteryholder,makingthemshortfor5seconds.)
3. Replace the battery.
4. Plug in the power cord and restart your computer.
• Always turn off your computer and unplug the power cord before replacing the battery.
• Replace the battery with an equivalent one. Danger of explosion if the battery is replaced with
an incorrect model.
• Contact the place of purchase or local dealer if you are not able to replace the battery by yourself
or uncertain about the battery model.
• Wheninstallingthebattery,notetheorientationofthepositiveside(+)andthenegativeside(-)
ofthebattery(thepositivesideshouldfaceup).
• Used batteries must be handled in accordance with local environmental regulations.