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Detailed specifications - ThinkPad X41
CommunicationsOperating environmentStorage

  • Chipset is AD1981B
  • One 0.5W internal speaker (mono)
  • 16-bit and 8-bit stereo playback and recording
  • Sound Blaster compatible
  • DirectSound 3D positional audio
  • Volume up, down, and mute buttons
  • Three 1/8" audio jacks:
    • One for external stereo speakers or headphone
    • One for an external microphone
    • One for line-in
  • 85 SBCS key keyboard with imbedded numeric keypad and integrated TrackPoint(TM) with enhanced features
  • Embedded numeric keypad
  • The keyboard has a Fn key which is a special key and is located in the lower left corner. The Fn key allows the user to instantly activate the following operational features by pressing the Fn key and a designated function key: - Standby/Suspend/Hibernation - Switching between Display devices - Power management mode
  • Access IBM button, allowing one-touch entry into Access IBM / ThinkVantage Productivity Center
  • ThinkLight which illuminates the keyboard in low light conditions
  • Fingerprint reader is integrated into the palm rest of the ThinkPad notebook computer to prevent unauthorized access to your notebook and data.
  • PC2-4200 CL4 Non-Parity (NP) Double Data Rate Two (DDR2)
  • Prepopulated with 256MB or 512MB with one slot available for expansion.
  • Expandable with SDRAM modules to a maximum 1.28 GB or 1.536 GB
  • TrackPoint with Press-to-Select, Internet scroll, and magnifying glass features for accurate and convenient control
  • Low Voltage Intel Mobile Pentium M 758 (1.5GHz), 778(1.60GHz)
  • 2 MB onboard L2 cache memory

Infrared (IR)
  • IR transceiver for wireless file and data transfer and printing.
  • Speeds up to 4Mbps.
  • Compatible with the Infrared Data Association (IrDA) IR data link specification
  • Sensing Distance: 1 m
  • Sensing Angle: + 15 degree, -15 degree horizontally
  • 56K v.92
  • Available as either a single CDC card or in combination with the Bluetooth CDC card
Note: Public network download speeds are limited to 53kbps. Upload speeds are limited to 31.2kbps. Actual speeds depend on many factors and are often less than the maximum stated.
  • Ethernet
    • 1Gb Ethernet soldered on system board
  • Wireless
    • 802.11bg wireless or 802.11abg wireless, (depending on model) available as Mini PCI cards
    • Click here for FCC information

  • One Mini PCI type III slot
  • One Communications Daughter Card slot
  • Ultrabay slim is available via the ThinkPad X4 UltraBase
External ports
  • Two USB (One on the right side, one on the left side) version 2.0
  • One Ethernet RJ-45 with 2 LEDs
  • One RJ-11 for modem enabled systems
  • Secure Digital (SD) card slot
  • One DB-15 external display
  • Audio line out and microphone in ports
PC Card
  • Conforms to the PC Card Standard 95
  • The Type II slot can accommodate one Type I or one Type II
  • Both 16-bit and 32-bit cards are supported.
  • PCMCIA 2.1 standard

Operating environment
Physical specifications


  • Width: 268mm (10.5in)
  • Depth:
    • 211mm (8.3in) with 4 cell battery
    • 236.8mm (9.32in) with 8 cell battery
  • Height:
    • Minimum: 20.6mm (0.81in)
    • Maximum: 26.9mm (1.06in)
  • Weight:
    • Minimum: 1.25kg (2.8lb)
    • Maximum: 1.51kg (3.3lb)
Note: Weight is approximate.
Agency approvals
  • FCC Class-B certified to comply with FCC Rules, Part 15
  • VCCI Class 2
  • CB Report
  • UL-1950
  • C-UL
  • CCIB/CCEE (for China)
  • BSMI (for Taiwan)
  • MIC (for Korea)
  • SMA 3548 (for Australia and New Zealand)
  • CE Mark

AC Adapter
  • AC adapter: This AC-to-DC converter supplies the necessary power to the computer. The AC adapter also charges the battery pack when it is installed in the computer.
  • Universal AC adapter (56 W):
    • Input is 100/240 V ac, 1.2/0.7 A, 50/60 Hz
    • Output is 16 V dc, 3.5 A
  • 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.
  • Four cell Li-Ion battery pack: 200g (0.44lb)
  • Eight cell Li-Ion battery pack: 405g (0.89lb)
  • Li-Ion battery pack:
    • 14.4V, 1.9Ah, 4 cell battery
    • 14.4V, 4.2Ah, 8 cell battery
  • Approximate operation and charging hours are:
    • Power off/suspend charging**:
      • 3.5hr, 4 cell battery
      • 4.3hr, 8 cell battery
    • Charging during operation **
      • 3.5 hours minimum, 4 cell battery
      • 4.3 hours minimum, 8 cell battery
      • 4.0 hours typically, 4 cell battery
      • 5.0 hours typically, 8 cell battery
      • 6.0 hours maximum, 4 cell battery
      • 12 hours maximum, 8 cell battery
    • Battery operation:
      • Up to 3.5hr *, 4 cell battery
      • Up to 7.5hr *, 8 cell battery

Results obtained using eTesting Labs Inc's BatteryMark(TM) Version 4.0.1. Battery life will vary based on many factors including screen brightness, applications, features, power management, battery conditioning, and other customer preferences.
* BatteryMark(TM) is a trademark of Ziff Davis Publishing Holdings Inc., an affiliate of eTesting Labs Inc., in the United States and other countries.
** Recharge time will also vary

  • Security Chip (TCPA/Crypto 3) on selected models
  • Locking device in the security slot provides physical security.
  • A Power-on password (POP) protects the system from unauthorized
    use. If a POP is set, the password prompt appears:
    • Each time the system is turned on
    • When the system is returned to normal operation from suspend mode
  • A Supervisor Password provides a higher level of security than the POP. The Supervisor Password protects the system functions from being used by unauthorized users, and protects the hardware configuration from unauthorized modification.
  • A hard drive Password (HDP) protects hard drive data from unauthorized users. Once HDP is set, data on the hard drive cannot be accessed without the correct HDP. Because the HDP is stored in the hard drive, the data remains protected even if the hard drive is removed to another system. The HDP password prompt appears:
    • Each time the system is turned on

Operating system
The following operating systems are supported on the ThinkPad X41 systems:
  • Microsoft Windows 2000 (no service pack, SP1, SP2, SP3, SP4)
  • Microsoft Windows XP Professional (no service pack, SP1)
  • Microsoft Windows XP Home (no service pack, SP1)
Note: Preloaded software utilizes the disk-to-disk recovery method. Previous versions of these operating systems are not supported.

Optical drive
  • Available via USB or X4 UltraBase Ultrabay slim slot
Floppy drive
  • Available via USB or X4 UltraBase Ultrabay slim slot
Hard drive features
  • Standard with either 40GB or 60GB sizes
  • Supports one additional hard drive which can be used concurrently to offer expanded storage
  • S.M.A.R.T. technology to issue an alert if a hardware failure is pending
  • ATA Bus Interface
  • 4200 rpm
  • Although you can upgrade the hard drive, it is not designed to be removed and reinserted on a regular basis. Repeated and frequent removal, for purposes other than to upgrade for greater capacity, can cause damage to the system. The Ultrabay slim hard drive adapter is designed to provide this flexibility with a second hard drive in the Ultrabay slim in the X4 UltraBase


Large, brilliant 12.1inch XGA (1024 x 768) active matrix TFT display

  • All displays are measured diagonally.

Graphic Controller
Video chipset:
  • 16MB Intel Graphics Media Accelerator 900 chipset
16MB ATI Mobility RADEON
ResolutionLCD Color depth
640x480256, 64k, 16M
800x600256, 64k, 16M
1024x768256, 64k, 16M
1280x1024256*1, 64k*1, 16M*1
1600x1200256*1, 64k*1, 16M*1
2048x1536256*1*2, 64k*1*2, 16M*1*2

ResolutionSupported refresh rates in Hz for external monitors
640x48060, 72, 75, 85, 100, 120 Hz
800x60056, 60, 70, 72, 75, 85, 100, 120 Hz
1024x76860, 70, 75, 85, 100, 120 Hz
1280x102460, 70, 72, 75, 85, 100, 120 Hz
1600x120060, 70, 72, 75, 85, 100 Hz
2048x153660*2, 75*2 Hz
*1 Supported in panning mode.
*2 This video mode is not supported on Windows NT4. It is supported only on Windows 2000, XP Home, and XP Professional.
*3 Supported at external monitor only. When the LCD and external monitor are used at the same time, the refresh rate may be lower.

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Document ID : PD013609
Legacy Document ID : MIGR-59154
Last Updated :
Copyright © Lenovo 2013, all rights reserved
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