Lenovo ThinkPad Edge E420 User Manual

9.Attachthecover1,pivotitdownwards,andthentightenthescrews2.
10.Reinstallthebattery.Formoreinformationabouthowtoreinstallthebattery,referto“Replacingthe
battery”onpage77
.
11.Turnthecomputeroveragain.Connecttheacpoweradapterandthecablestothecomputer.
Replacingtheopticaldrive
ThinkPadEdgeE420
Beforeyoustart,printtheseinstructions.
Anopticaldriveispreinstalledinthebay.Ifitneedstoberepaired,removeitasfollows:
1.Turnoffthecomputer;thendisconnecttheacpoweradapterandallcablesfromthecomputer.Waitfor
afewminutes,tilltheinsideofthecomputercools,beforeyoustartthefollowingprocedures.
2.Removethebattery.
3.Closethecomputerdisplay,andturnthecomputerover.
4.Loosenthescrews1,andthenremovethecover2.
82UserGuide

Lenovo ThinkPad Edge E420 Specifications

General

Processor	Intel Core i3/i5/i7
RAM	Up to 8GB DDR3
Display	14-inch HD (1366 x 768) or HD+ (1600 x 900)
Wireless	Wi-Fi 802.11 b/g/n
Bluetooth	Bluetooth 3.0
Webcam	720p HD Webcam
Storage	320GB/500GB/750GB HDD or 128GB SSD
Graphics	AMD Radeon HD 6630M
Operating System	Windows 7
Battery	6-cell Lithium-Ion
Ports	USB 2.0, USB 3.0, VGA, HDMI, Ethernet
Card Reader	SD
Optical Drive	DVD-RW
Keyboard	Numeric Keypad