Pin Definition

Motherboard Pin Denition
1-17
5 Onboard buttons and switches
Onboardbuttonsallowyoutone-tuneperformancewhenworkingonabareoropen-
case system. This is ideal for overclockers and gamers who continually change settings to
enhance system performance.
1. Power-on button (START)
The motherboard comes with a power-on button that allows you to power
up or wake up the system. The button also lights up when the system is
plugged to a power source indicating that you should shut down the system
and unplug the power cable before removing or installing any motherboard
component.
2. RESET button (RESET)
Press the reset button to reboot the system.
RESET
• TurnoffthesystemandreinstalltheDIMMbeforeusingtheMemOK!function.
• TheMemOK!buttondoesnotfunctionunderWindows
®
OS environment.
• Duringthetuningprocess,thesystemloadsandtestsfailsafememorysettings.It
takes about 30 seconds for the system to test one set of failsafe settings. If the test
fails, the system reboots and test the next set of failsafe settings.
• Duetomemorytuningrequirement,thesystemautomaticallyrebootswheneach
timing set is tested. If the installed DIMMs still fail to boot after the whole tuning
process,replacetheDIMMswithonesrecommendedintheMemoryQVL(Qualied
Vendors Lists) in this user manual or on the ASUS website at www.asus.com.
• IfyouturnoffthecomputerandreplaceDIMMsduringthetuningprocess,thesystem
continues memory tuning after turning on the computer. To stop memory tuning, turn
off the computer and unplug the power cord for about 5–10 seconds.
• IfyoursystemfailstobootupduetoBIOSoverclocking,presstheMemOK!button
to boot and load the BIOS default settings. A message will appear during POST
reminding you that the BIOS has been restored to its default settings.
• WerecommendthatyoudownloadandupdatetothelatestBIOSversionfromthe
ASUS website at www.asus.com after using the MemOK! function.
3. MemOK! button (MemOK!)
Installing DIMMs that are not compatible with the motherboard may
cause system boot failure. Press the MemOK! button until the memory
compatibility tuning for successful boot.
E11133_MB_pin_definition_v2.indd 17 2015/12/28 17:21:49