Lenovo ThinkPad T450 User Manual

Keyboardproblems
•Problem:Allorsomekeysonthekeyboarddonotwork.
Solution:Ifanexternalnumerickeypadisconnected:
1.Turnoffthecomputer.
2.Removetheexternalnumerickeypad.
3.Turnonthecomputerandtryusingthekeyboardagain.
Ifthekeyboardproblemisresolved,carefullyreconnecttheexternalnumerickeypadandtheexternal
keyboard.Makesurethatyouhaveseatedtheconnectorscorrectly.
Iftheproblempersists,makesurethatthecorrectdevicedriverisinstalledbydoingthefollowing:
1.OpenControlPanel.ChangetheviewofControlPanelfromCategorytoLargeiconsorSmallicons.
2.ClickKeyboard.
3.SelecttheHardwaretab.IntheDevicePropertiespane,makesurethatyouseethismessage:
DeviceStatus:Thisdeviceisworkingproperly.
Ifkeysonthekeyboardstilldonotwork,havethecomputerserviced.
•Problem:Allorsomekeysontheexternalnumerickeypaddonotwork.
Solution:Makesurethattheexternalnumerickeypadiscorrectlyconnectedtothecomputer.
Problemswiththedisplayandmultimediadevices
Thistopicincludesthemostcommonproblemswithdisplaysandmultimediadevices,includingthe
computerdisplay,theexternalmonitor,audiodevices,andtheopticaldrive.
Computerscreenproblems
•Problem:Thescreenisblank.
Solution:Dothefollowing:
–Pressthedisplay-modeswitchingkeytobringuptheimage.
–Ifyouareusingtheacpoweradapter,orusingthebatteriesandthebattery-statusiconshowsthatthe
batteriesarenotdepleted,pressthebrightness-upkey
tomakethescreenbrighter.
–Ifyourcomputerisinsleepmode,presspowerbuttontoresumefromthesleepmode.
–Iftheproblempersists,followthesolutionforthefollowingproblem.
•Problem:Thescreenisunreadableordistorted.
Solution:Makesurethat:
–Thedisplaydevicedriverisinstalledcorrectly.
–Thescreenresolutionandcolorqualityarecorrectlyset.
–Themonitortypeiscorrect.
Tocheckthesesettings,dothefollowing:
1.Connecttheexternalmonitortoyourcomputer,andthenconnectthemonitortoanelectricaloutlet.
2.Turnontheexternalmonitor.
3.Right-clickonthedesktop,andclickScreenresolution.
Note:Ifyourcomputercannotdetecttheexternalmonitor,clicktheDetectbutton.
4.SelecttheexternalmonitorandsetResolution.
5.ClickAdvancedSettings.
Chapter10.Troubleshootingcomputerproblems137

Lenovo ThinkPad T450 Specifications

General

Form factor	Clamshell
Product type	Laptop
Product color	Black
Bus type	DMI2
Stepping	F0
Tjunction	105 °C
Processor cache	3 MB
Processor cores	2
Processor model	i5-5200U
System bus rate	5 GT/s
Processor family	Intel® Core™ i5
Processor series	Intel® Core™ i5-5200 Mobile Series
Processor socket	BGA 1168
Processor threads	4
Processor codename	Broadwell
Processor frequency	2.2 GHz
Processor cache type	Smart Cache
Configurable TDP-down	7.5 W
Processor lithography	14 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor boost frequency	2.7 GHz
Processor operating modes	32-bit, 64-bit
ECC supported by processor	No
PCI Express configurations	4x1, 2x4
Thermal Design Power (TDP)	15 W
Configurable TDP-down frequency	0.6 GHz
Maximum number of PCI Express lanes	12
Motherboard chipset	-
Memory slots	2x SO-DIMM
Internal memory	4 GB
Memory form factor	SO-DIMM
Internal memory type	DDR3L-SDRAM
Maximum internal memory	16 GB
Memory layout (slots x size)	1 x 4 GB
HDD speed	5400 RPM
HDD interface	SATA III
Storage media	Hybrid-HDD
Hybrid-HDD cache type	Flash
Card reader integrated	Yes
Total storage capacity	500 GB
Compatible memory cards	MMC, SD, SDHC, SDXC
Hybrid-HDD cache memory	8 GB
Number of HDDs installed	1
Display surface	Matt
Display diagonal	14 \
Display resolution	1600 x 900 pixels
Native aspect ratio	16:9
On-board graphics card ID	0x1616
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics 5500
On-board graphics card family	Intel® HD Graphics
On-board graphics card base frequency	300 MHz
On-board graphics card DirectX version	11.2
On-board graphics card dynamic frequency (max)	900 MHz
Intel segment tagging	Home Office, Small Business
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x
Audio system	Realtek ALC3232
Front camera resolution	1280 x 720 pixels
Front camera resolution (numeric)	0.921 MP
4G standard	LTE
Wi-Fi standards	Wi-Fi 5 (802.11ac)
Bluetooth version	4.0
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.
CardBus PCMCIA slots quantity	0
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	3
Pointing device	ThinkPad UltraNav
Recovery operating system	Windows 8.1 Pro
Operating system installed	Windows 7 Professional Preload
Operating system architecture	64-bit
Processor code	SR23Y
Processor ARK ID	85212
Processor package size	40 x 24 x 1.3 mm
Supported instruction sets	AVX 2.0, SSE4.1, SSE4.2
Intel Identity Protection Technology version	1.00
Battery capacity	23 Wh
Battery life (max)	17 h
AC adapter power	45 W
AC adapter input voltage	120 - 230 V
Sustainability certificates	RoHS, ENERGY STAR

Weight and Dimensions

Depth	232.5 mm
Width	339 mm
Height	21 mm
Weight	1730 g