Operation Manual

5Harddiskdrive
Yourcomputermayhavealarge-capacity,customer-upgradableharddiskdrivethatcanmeetavarietyof
storagedemands.Tokeepthedrivesafe,ActiveProtectionSystemisinstalledonyourcomputer.For
details,refertoActiveProtectionSystem”onpage22.
Note:ThehiddenservicepartitionisthereasonwhythereislessfreespacethanexpectedonyourHDD.
6PCIExpressMiniCardslotforwirelessLAN/WiMAX
YourcomputermightincludeaPCIExpressMiniCardforwirelessLAN/WiMAXinthePCIExpressMiniCard
slotwhichenableswirelessLAN/WiMAXcommunications.
Rearview
Figure6.ThinkPadEdgeE420andE520rearview
1Ethernetconnector
2Fanlouvers(rear)
1Ethernetconnector
ConnectyourcomputertoaLANwiththeEthernetconnector.
DANGER
Toavoidtheriskofelectricalshock,donotconnectthetelephonecabletotheEthernetconnector.
YoucanonlyconnectanEthernetcabletothisconnector.
Twoindicators,tothelowerrightandleftoftheconnector,showthestatusofthenetworkconnection.When
yourcomputerconnectstoaLANandasessionwiththenetworkisavailable,thelowerrightindicatoris
solidgreen.Whiledataisbeingtransmitted,thelowerleftindicatorblinksyellow.
10UserGuide