User guide

IfyouneedtoremovethewirelessLANcard1forrepairorreplacement,followtheprocedurein“Replacing
aPCIExpressMiniCardforwirelessLANconnection”onpage74.
Note:OnlyLenovoauthorizedwirelessLANisallowedtobeusedinyourcomputer.Ifyouinstallan
unauthorizedPCIExpressMiniCardthatisnotapprovedforuseinyourcomputer,thecomputerwillnot
start,butwillonlydisplayanerrormessageandemitaudiblebeeps.
CerticateofAuthenticitylabel
TheCerticateofAuthenticitylabelforthepreinstalledoperatingsystemisattached.Printedonthislabelare
theproductIDandtheproductkeyinformationforyourcomputer.Recordthisinformationandkeepitina
safeplace.Youmightneedthesenumberstostartyourcomputerorreinstalltheoperatingsystem.
TheCerticateofAuthenticitylabelofyourcomputerisshownasbelow:
Note:TheCerticateofAuthenticitylabelonlyappliestocomputerspreinstalledwiththeWindows7
operatingsystem.
Features
Thistopicliststhefeaturesofyourcomputer.
Processor
•Toviewtheprocessorinformationofyourcomputer,dothefollowing:
–ForWindows7:ClickStart,right-clickComputer.ThenclickProperties.
–ForWindows8:Movethecursortothebottomrightcornerofthescreentobringupthecharms.
ThenclickSettings➙PCinfo.
Memory
•Doubledatarate3synchronousdynamicrandomaccessmemorymodules(DDR3SDRAM)
Storagedevice
•2.5-inchharddiskdrivewithaheightof7mm(0.28inch)or9.5mm(0.37inch)
Display
ThecolordisplayusestheTFTtechnology.
•Size:
–ForE445models:14.0inches(355.6mm)
Chapter1.Productoverview13