7Fanlouvers
Theinternalfanandlouversenableairtocirculateinthecomputerandcoolthecentralprocessor.
Note:T oavoidimpedingairow,donotplaceanyobstacleinfr ontofthefan.
Statusindicators
Yourcomputerhassystem-statusindicatorsandpower-statusindicators.Thestatusindicatorsshowthe
currentstatusofyourcomputer.

System-statusindicators

1WirelessLAN/WAN/WiMAX/Bluetoothstatusindicator
•Green:ThewirelessLAN,WAN,Bluetooth,orWiMAXfeatureison.
•Off:Wirelessnetworkdevicesaredisabledorthewirelessradioisturnedoff.
2Deviceaccessstatusindicator
Theharddiskdrive,solidstatedrive,mSATAsolidstatedrive,orthesecondharddiskdriveintheSerial
UltrabaySlimbayisreadingorwritingdata.
Note:Whenthisindicatorisblinking,donotputthecomputerintosleepmode,removethesecondhard
diskdrive,orturnoffthecomputer.
3Power-onstatusindicator
Thepowerbuttonstayslitwheneverthecomputerison,blinkswhenthecomputerisinsleepmode,and
isoffwhenthecomputeristurnedoff.
8UserGuide