ThinkPad T420 Laptop specification Support
Audio : High Definition (HD) Audio Conexant 20672 codec / stereo speakers, Combo audio/mic jack
Memory : PC3-10600 Non-Parity (NP) Double Data Rate Three (DDR3) Technology, Two SO-DIMM Slots 1 GB, 2GB, or 4GB, Supports up to 8GB maximum memory, 2GB or 4GB Intel Turbo Memory (selected models), Note: Only 64-bit operating systems support more than 3GB of system memory (RAM).
Mouse : All systems come with the UltraNav dual-pointing system, featuring TrackPoint and customized touch pad for the ultimate in pointing flexibility is a part of the keyboard. The TrackPoint features Press-to-Select, Internet scroll, and magnifying glass for accurate and convenient control.
Available processors are:
Intel® Core™ i3 processor i3-2310M with dual-core
DDR3 memory controller (up to 1333MHz), Intel Turbo Boost, Hyper-Threading technology; 3MB cache
Intel® Core™ i5 processor i5-2410M with dual-core
DDR3 memory controller (up to 1333MHz), Intel Turbo Boost, Hyper-Threading technology; 3MB cache
Intel® Core™ i5 processor i5-2520M with dual-core
DDR3 memory controller (up to 1333MHz), Intel Turbo Boost, Hyper-Threading technology; 3MB cache
Intel® Core™ i5 processor i5-2540M with dual-core
DDR3 memory controller (up to 1333MHz), Intel Turbo Boost, Hyper-Threading technology; 3MB cache
Intel® Core™ i7 processor i7-2620M with dual-core
DDR3 memory controller (up to 1333MHz), Intel Turbo Boost, Hyper-Threading technology; 4MB cache
Network :
802.11abgn wireless PCIe Half Mini Card on selected models.
802.11bgn wireless PCIe Half Mini Card on selected models.
Intel Centrino® Wireless-N 1000
Intel Centrino® Advanced-N 6205
Wireless WAN upgradable on selected models.
Wireless WWAN Minicard for AT&T on selected models
Qualcomm® Gobi™ 3000 chipset, PCIe Mini Card
Bluetooth with Enhanced Data Rate (BDC-2.1)
Battery :
The battery pack is an internal power source to the computer when the AC adapter is not available. The battery pack is rechargeable and is charged using the AC adapter with the system.
You can determine how much battery power remains by using the Fuel-Gauge ThinkPad utility program. This displays the percent charge remaining, whether one or two batteries are in the system.
A 6- or 9-cell Li-Ion battery pack is shipped with the system.
Supports optional Slice battery as second battery at bottom.
Battery life : 6-cell ( up to 3.5 hours ), 9-cell ( up to 5.8 hours ), 9-cell Slice battery ( up to 5.8 hours ). Notes : Battery life (and recharge times) will vary based on many factors including screen brightness, applications, features, power management, battery conditioning and other customer preferences.
Display :
14.0-inch HD (1366 x 768) LED backlight Anti-Glare Display
14.0-inch HD+ (1600 x 900) LED backlight Anti-Glare Display
Notes :
Support for a external monitor is through VGA DB-15 connector
Support for digital monitor via DisplayPort (supports single-link DVI-D via cable 45J7915)
Maximum external resolution: 2560x1600 (DisplayPort)@60Hz; 2048x1536 (VGA)@75Hz; 1920x1200@60Hz (single-link DVI-D via cable 45J7915
All displays are measured diagonally.
Video chipsets : Intel HD Graphics 3000, NVIDIA NVS™ 4200M
Notes : Support for a external monitor is through VGA DB-15 connector, digital monitor via DisplayPort (supports single-link DVI-D via cable 45J7915). Maximum external resolution: 2560x1600 (DisplayPort)@60Hz; 2048x1536 (VGA)@75Hz; 1920x1200@60Hz (single-link DVI-D via cable 45J7915. All displays are measured diagonally.
To download driver for Thinkpad T420 Laptop please visit this link
