Gigabyte Ga-h81m-h Manual

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1-7 Internal Connectors
To  configure  7.1-channel  audio,  you  have  to  use  an  HD  front  panel  audio  module  and  enable  the multi-channel audio feature through the audio driver.
Read the following guidelines before connecting external devices: •First make sure your devices are compliant with the connectors you wish \
to connect. •Before installing the devices, be sure to turn off the devices and your computer. Unplug the power cord from the power outlet to prevent damage to the devices....

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1/2) ATX_12V/ATX (2x2 12V Power Connector and 2x12 Main Power Connector)  With the use of the power connector, the power supply can supply enough stable power to all the components on the motherboard. Before connecting the power connector, first make sure the power supply is turned off and all devices are properly installed. The power connector possesses a foolproof design. Connect the power supply cable to the power connector in the correct orientation. The 12V power connector mainly supplies...

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5) BAT (Battery)  The battery provides power to keep the values (such as BIOS configurations, 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...

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8) F_PANEL (Front Panel Header)  Connect the power switch, reset switch, speaker, and system status indicator on the chassis to this header according to the pin assignments below. Note the positive and negative pins before connecting the cables.
 •PW (Power Switch): Connects to the power switch on the chassis front panel. You may configure  the  way  to  turn  off  your  system  using  the  power  switch (refer to Chapter 2, "BIOS Setup," "Power Management," for more information)....

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10) F_USB1/F_USB2 (USB 2.0/1.1 Headers)  The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an optional USB bracket. For purchasing the optional USB bracket, please co\
ntact the local dealer.
11) CLR_CMOS (Clear CMOS Jumper)  Use this jumper to clear the BIOS configuration and reset the CMOS values to factory defaults. To clear the CMOS values, use a metal object like a screwdriver to touch the two \
pins for a few seconds.
10921Pin No.DefinitionPin...

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Chapter 2 BIOS Setup
2-1 Startup ScreenThe following startup Logo screen will appear when the computer boots.(Sample BIOS Version: F3a)
Function Keys
 •When the system is not stable as usual, select the Load Optimized Defaults item to set your system to its defaults. •The BIOS Setup menus described in this chapter are for reference only an\
d may differ by BIOS version.
On the main menu of the BIOS Setup program, press arrow keys to move amo\
ng the items and press  to accept or enter a sub-menu....

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2-2 M.I.T.
Whether the system will work stably with the overclock/overvoltage settings you made is dependent on your overall system configurations. Incorrectly doing overclock/overvoltage may result in damage to CPU, chipset, or memory and reduce the useful life of these components. This page is for advanced users only and we recommend you not to alter the default settings to prevent system instability or other unexpected results. (Inadequately altering the settings may result in system's...

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(Note) This item is present only when you install a CPU that supports this feature. For more information about 
Intel® CPUs' unique features, please visit Intel's website.
 &K OC (Note)
 Allows for increased performance by using certain CPUs. (Default: Auto)
 &CPU PLL Selection Allows you to set the CPU PLL. Auto lets the BIOS automatically configure this setting. (Default: Auto)
 &Filter PLL Level Allows you to set the Filter PLL. Auto lets the BIOS automatically configure this setting....

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(Note  1) This item is present only when you install a CPU that supports this feature. For more information about 
Intel® CPUs' unique features, please visit Intel's website.
(Note 2) This item is present only when you install a CPU and a memory module that support this feature.
 `Advanced Memory Settings
 &	
Extreme	Memory	Profile	(X.M.P.)	(Note 2), System Memory Multiplier, Memory Frequency(MHz) The settings above are synchronous to those under the same items on the \
Advanced Frequency...

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 `PC Health Status
 &Reset Case Open Status Disabled   Keeps or clears the record of previous chassis intrusion status. (Defau\
lt) Enabled     Clears the record of previous chassis intrusion status and the Case Open  field  will show "No" at next boot.
 &Case Open Displays the detection status of the chassis intrusion detection device attached to the motherboard CI header. If the system chassis cover is removed, this field will show "Yes", otherwise it will show...