Lenovo B575e User Manual

Ifanyofthesepasswordshasbeenset,apromptforitwillbedisplayedonthescreenwheneverthe
computeristurnedon.Thecomputerdoesnotstartuntilthepasswordisentered.
Note:Ifonlyasupervisorpasswordisset,thepasswordpromptwillnotbedisplayedwhentheoperating
systemisstarted.
Power-onpassword
Apower-onpasswordprotectsthesystemfrombeingturnedonbyanunauthorizedperson.Thepassword
mustbeenteredbeforeanoperatingsystemcanbestarted.
Supervisorpassword
AsupervisorpasswordprotectsthesysteminformationstoredintheBIOS.Theusermustenterthe
supervisorpasswordtogetaccesstotheBIOSandchangethesystemconguration.
Attention:Ifyouforgetthepassword,thereisnoserviceproceduretoresetthepassword.Thesystem
boardmustbereplacedforascheduledfee.
Powermanagement
Note:PowermanagementmodesarenotsupportedforAPMoperatingsystem.
Toreducepowerconsumption,thecomputerhasthreepowermanagementmodes:screenblank,sleep,
andhibernation.
Screenblankmode
Inthefollowingcircumstances,thecomputergoesintoscreenblankmode:
•Thetimesetonthe“T urnoffmonitor”timerontheWindows7operatingsystemexpires.
Toendscreenblankmodeandresumenormaloperation,pressanykey.
•Y ouhavepressedFn+F2.
Toendscreenblankmodeandresumenormaloperation,pressFn+F2.
Sleepmode
Whenthecomputerenterssleepmode,thefollowingeventsoccurinadditiontowhatoccursinscreen
blankmode:
•TheLCDispoweredoff.
•Theharddiskdriveispoweredoff.
•TheCPUstops.
Toentersleepmode,pressFn+F1.
Incertaincircumstances,thecomputergoesintosleepmodeautomatically:
•Ifa“suspendtime”hasbeensetonthetimer,andtheuserdoesnotdoanyoperationwiththekeyboard,
theharddiskdrive,theparallelconnector,orthediskettedrivewithinthattime.
•Ifthebatteryindicatorblinksorange,indicatingthatthebatterypowerislow.
Tocausethecomputertoreturnfromsleepmodeandresumetheoperation,dooneofthefollowing:
•PresstheFnkey.
•OpentheLCDcover.
•Turnonthepowerbutton.
34HardwareMaintenanceManual

Lenovo B575e Specifications

General

Processor cache	1 MB
Processor cores	2
Processor model	E2-1800
Processor family	AMD E
Processor frequency	1.7 GHz
Processor cache type	L2
Processor manufacturer	AMD
Motherboard chipset	AMD A70M
Internal memory	4 GB
Internal memory type	DDR3-SDRAM
Maximum internal memory	- GB
HDD speed	5400 RPM
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD-RW
Card reader integrated	Yes
Total storage capacity	500 GB
Number of HDDs installed	1
Display diagonal	15.6 \
Display resolution	1366 x 768 pixels
Native aspect ratio	16:9
Contrast ratio (typical)	10000:1
LightScribe	-
Infrared data port	No
On-board graphics card model	AMD Radeon HD 7340G
On-board graphics card family	AMD Radeon HD 7000
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Networking features	Gigabit Ethernet
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Charging port type	DC-in jack
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
eSATA/USB 2.0 ports quantity	0
Pointing device	Touchpad
Operating system installed	Windows 7 Home Premium
Operating system architecture	64-bit
Form factor	Clamshell
Product color	Black
Battery life (max)	- h

Weight and Dimensions

Weight	2500 g