Lenovo ThinkPad Edge E520 - Bottom View

Bottomview
Figure5.ThinkPadEdgeE420andE520bottomview
1Battery
2SIMcardslot
3PCIExpressMiniCardslotforwirelessWAN
4Memory-upgradeslot
5Harddiskdrive
6PCIExpressMiniCardslotforwirelessLAN/WiMAX
1Battery
Useyourcomputerwithbatterypowerwheneveracpowerisunavailable.
Byinstallinganextendedlifebatteryavailableasanoptionyoucanextendtheoperatingtimeofthe
computer.
YoucanalsousePowerManagertoadjustyourpowersettingasneeded.Fordetails,refertotheinstructions
in“PowerManager”onpage23.
2SIMcardslot
IfyourcomputerhasawirelessWANfeature,itmayrequireaSIM(SubscriberIdenticationModule)cardto
establishawirelessWAN(WideAreaNetwork)connections.Dependingonthecountryofdelivery,theSIM
cardmaybealreadyinstalledintheSIMcardslot.
3PCIExpressMiniCardslotforwirelessWAN
YourcomputermightincludeaPCIExpressMiniCardforwirelessWANinthePCIExpressMiniCard
slotwhichenableswirelessWANcommunications.
4Memory-upgradeslot
Youcanincreasetheamountofmemoryinyourcomputerbyinstallingamemorymoduleinthememory
bay.Memorymodulesareavailableasoptions.
Chapter1.ProductOverview9