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Summary of changes for BIOS Update - ThinkPad R52 (1846, 1847, 1848, 1849, 1850, 1870, 1957)
Applicable countries and regions
Symptoms

Symptom corrected by version 76ET69WW (1.29)
Note: This BIOS version will only work with Embedded Controller Program Version 1.05 (or higher).

  • (New) Support for Microsoft Windows Vista.

Symptom corrected by version 76ET68WW (1.28)
Note: This BIOS version will only work with Embedded Controller Program Version 1.05 (or higher).

  • (Fix) If the computer is forcibly shut down by special conditions (such as pressing the power button for a few seconds or exhausted battery while in suspend mode), the computer may not function after power on.

Symptoms corrected by version 76ET67WW (1.27)
Note: This BIOS version will only work with Embedded Controller Program Version 1.05 (or higher).

  • (Fix) ThinkPad Wireless LAN Mini PCI Adapter may not work.

Symptoms corrected by version 76ET66WW (1.26)
Note: This BIOS version will only work with Embedded Controller Program Version 1.05 (or higher).

  • (New) Presentation Director can switch to the unknown external display which the computer fails to detect.
  • (New) When the computer boots with a USB memory device, a drive letter is always assigned to the device. (A drive letter had been assigned to the USB memory device only if the computer was set in BIOS to be booted from the USB memory device.)

Symptom corrected by version 76ET65WW (1.25)
Note: This BIOS version will only work with Embedded Controller Program Version 1.05 (or higher).

  • (Fix) Floppy disk access error may occur on the floppy disk drive connected to the docking station.

Symptoms corrected by version 76ET63WW (1.23)
Note: This BIOS version will only work with Embedded Controller Program Version 1.05 (or higher).

  • (New) Support for ThinkPad NumLock. A new ThinkPad NumLock option is added to Keyboard/Mouse of Config menu in BIOS Setup Utility.

    Settings
    [Independent] : The NumLock on the ThinkPad computer can be disabled independently regardless of the NumLock state of the external keyboard. If the NumLock on the ThinkPad computer is enabled, the NumLock on the external keyboard will also be enabled.
    [Synchronized] : The NumLock on both the ThinkPad computer and the external keyboard are synchronized.

  • (Fix) Intel Pentium M Processor and Centrino logos displayed on screen after power-on is modified.
  • (Fix) The computer may hang if the hard drive is damaged.
  • (Fix) ATI Display property does not show a correct memory type.

Symptom corrected by version 76ET62WW (1.22)
Note:
This BIOS version will only work with Embedded Controller Program Version 1.01.

  • (New) A BIOS Setup option to allow the system to boot without pressing the Esc key when a 2010 error (An unsupported hard drive is used or the firmware of the hard drive is old) is displayed. To change the setting, go to 'BIOS Setup menu -> Startup -> Boot after message for Hard drive...'.
    Note: Use a supported hard drive or update the hard drive firmware.

Symptoms corrected by version 76ET61WW (1.21)
Note:
This BIOS version will only work with Embedded Controller Program Version 1.01.

  • (Important) The system may go into standby mode freely and then hang even if the standby timer in Power properties is disabled when any type of optical disks (such like DVD, CD-R drive) is detached from the system.
  • (Fix) A CardBus Controller setting was wrong.
  • (Fix) The system may hang up when a boot device is changed in Startup menu of BIOS Setup Utility.

Symptoms corrected by version 76ET60WW (1.20)
Note:
This BIOS version will only work with Embedded Controller Program Version 1.01.

  • (Fix) With the BIOS version 1.18 (76ET58WW) or later, the system will shut down on Wake On Lan with a Ultrabay Slim Second Hard drive adapter, even if no password is set in the second Hard drive.
  • (Fix) An error appears on power-on, just after powering off at a password prompt with a newly attached USB storage device.
  • (Fix) The system may not start with some USB devices, attached to docking station or port replicator.

Symptoms corrected by version 76ET58WW (1.18)
Note:
This BIOS version will only work with Embedded Controller Program Version 1.01.

  • (New) Enhancement of security function on power-on: When hard drive password is set, regardless of other passwords settings, Wake On Lan from power off state does not work.
  • (New) Support for a new type of video memory. No function changes.

Symptoms corrected by version 76ET29WW (1.09)
Note:
This BIOS version will only work with Embedded Controller Program Version 1.01.

  • (Fix) After the system is turned on, it may hang with the error message, "Operating System not found".
  • (Fix) The system may not resume normal operation from standby mode.
  • (Fix) (On some models) Adjustment of the completion time of both booting the system and resuming from standby mode.

Symptoms corrected by version 76ET27WW (1.07)
Note:
This BIOS version will only work with Embedded Controller Program Version 1.01.

  • (New) Improvement of the completion time of resuming from standby mode by around one second.
  • (New) Addition of new BIOS Setup menus to hide the following internal communication devices from Operating System.
    Modem: Config -> Modem -> Modem Device
    Infrared: Config -> Infrared -> Infrared Device
  • (Fix) Some of BIOS Setup menu items can not be updated with Remote CMOS Update Utility.
  • (Fix) Fast-IR data transfer speed on Windows XP may be slow.
  • (Fix) After the system is turned on, it may not be booted with the error message, "Operating System not found".

Symptom corrected by version 76ET24WW (1.04)
Note:
This BIOS version will only work with Embedded Controller Program Version 1.01.

  • (New) Support for a new type of video memory. No function is changed.

Symptom corrected by version 76ET22WW (1.02)
Note:
This BIOS version will only work with Embedded Controller Program Version 1.01.

  • (New) (Initial release) Support for ThinkPad R52 (Machine Types 1846, 1847, 1848, 1849, 1850 and 1870).

Affected configurations
Any of the following ThinkPad systems:
  • ThinkPad R52 (Machine Types 1846, 1847, 1848, 1849, 1850 and 1870).

Solution
Click here to download the latest Embedded Controller Update (Diskette).
Click here to download the latest Embedded Controller Update (Non-Diskette).

Click here to download the latest BIOS Update (Diskette).
Click here to download the latest BIOS Update (Non-Diskette).

Applicable countries and regions
Worldwide

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Document id:  MIGR-60761
Last modified:  2006-12-14
Copyright © 2009 IBM Corporation
Copyright © Lenovo 2009, all rights reserved
 
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