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Service Hints & Tips

Document ID: GSMH-39KHD6

TP 760C/CD/L/LD - BIOS PN and date matrix

Applicable to: World-Wide

Follow this link to obtain the latest version of the BIOS Diskette:

BIOS PN and Date Matrix for TP 760C, 760CD, 760L, 760LD:

Disk Ver.

Part Number

Date

1.00

91G1228

10-27-95

1.10

91G1530

01-30-96

1.20

91G1535

02-23-96

1.21

91G1727

04-16-96

1.22

91G1791

05-30-96

1.23

91G1977

08-07-96

1.24

91G2007

11-08-96

1.25

05K3093

09-05-97

1.30

97H4095

06-01-98


Summary of Change

Key: <n.nn> Diskette version (for example, 1.00 means Version 1.00)
<New> New function or enhancement
<Fix> Correction to existing function

1.00
- (New) Support for Windows 95.
- If Mwave modem is disabled, the SCSI IRQ of Dock-II can't be changed to other than IRQ 11 in the SCSI Select utility.
- The password prompt of secondary hard disk password is distorted when the personalization feature is active.
- When SVGA monitor refresh rate is changed by ThinkPad Features program, the screen of attached monitor is shrunk.
- To resume normal operation from ring indicator or resume timer while the suspend mode, any key must be depressed prior to entering your password.

1.10
- The system doesn't start when CMOS data is incorrect or the CMOS backup battery is discharged.
- The serial and parallel ports can't be disabled by the Device Manager in Windows 95.
- If hard disk password is set and when the system resumes normal operation from suspend mode, the mouse cursor appears before the hard disk password icon is displayed.
- The serial or parallel port data communication is sometimes broken, or the modem/fax communication can't be established correctly.
- "Will not suspend even if LCD is closed" option doesn't work when the Enhanced Video is enabled.
- In Windows 95, the system can't go into suspend mode when 'Standard' option is selected in the power management setting of <My Computer>-<Control Panel>-<Power Management>.
- (Test menu in Easy-Setup) 051-30 and 051-50 occurs intermittently (Enhanced Video test error).
- (Test menu in Easy-Setup) 009-03 occurs intermittently (System Board test error).

1.20
- (New) Support for ThinkPad 760L and 760LD.
- (New) A new Windows 95 PnP (Plug and Play) ID is assigned for the Infrared features.
- When an IBM Mini Mouse is attached, the keyboard may be locked.
- If the hard disk or diskette drive is disabled in the Windows 95 Device Manager, the resource will be still in use (will not be free).
- When an Adaptec 1542CP SCSI card (with PnP (Plug and Play) and FDC (Floppy Disk Controller) enabled) is inserted in the IBM Dock-II, the system can not be booted in Windows 95.
- The system with some Europe preload models hangs intermittently in Windows 95.

1.21
- The system with a docking station does not load the Operations System. The 'diskette drive in use' icon on the LCD indicator panel stays on and the system hangs. The system works fine out of dock.
- If the <Easy-Setup>-<Config>-<Initialize> operation is done to initialize the CMOS, the Power-On Password prompt doesn't appear on the screen when the system returns to normal operation from suspend mode.
- (Test menu in Easy-Setup) When any test is done in the Easy-Setup Test Menu, the HDD timer is set to 0 minute (disabled).

1.22
- (Fix) (Model 760C, 760CD only) On Windows 95, the system hangs when next two conditions meet.
1. The IBM Ethernet PC Card is inserted and configured to use I/O address 0120-013Fh (default setting)
2. The AC adapter is attached or detached to the ThinkPad or the system goes into suspend mode (by Fn+F4 keys).
- (Fix) On Windows 95, the system hangs when it is left alone for a few hours without AC adapter (i.e. at the battery operation mode).

1.23
- (Fix) Suspend-resume operation intermittently results in an unexpected unstable status, only when several conditions and timing meet.

1.24
- (Fix) A small amount (8KB) of data could be overwritten and lost under the following circumstances:
= Hibernation is Enabled.
=There is data present on the last cylinder of the Hard Disk Drive. This Is the last area on the drive to be used, but may contain user data if the drive has been full or contains very large files.
= The ThinkPad actually enters Hibernation mode by pressing Fn-F12 or by customized power management options.

NOTE:
+ The problem does not occur when creating the Hibernation file.
+ It only occurs when the ThinkPad actually enters Hibernation mode.
+ Only 2.1GB Hard Disk has this problem. There is no problem with other hard disks currently available from IBM.

1.25
- (New) IBM 4GB and 5GB hard disk drives are supported.

1.30
- (Fix) Keystroke entry immediately after entering the power on password can result in failure of proper recognition of subsequent keystrokes That is, a keystroke immediately after the entry of a password (before the operating system is fully loaded), can cause problems with any subsequent keyboard entry. If you experience this problem, update the BIOS with this SPSD.
- (Fix) CHKDSK.COM does not run from command prompt after executing RediSafe-suspend / resume with opening window or full screen, if installed FIX PACK-005 over OS/2 4.0 .
- (New) Support for Windows 98.

Service Information

The System Program Service diskette installs System Program as follows:

ThinkPad Model

BIOS P/N

Date

Reserved
BIOS Area*

Usable BIOS
ROM Area*

760C/760CD/760L/760LD

97H4095

06/01/98

C000-C7FF
F0FF-FFFF

E000-EFFF


* NOTE:
- Memory Area C000-C7FF is reserved for Video BIOS.
- Memory Range E000-EFFF can be used as UMB (Upper Memory Block) by a memory manager such as EMM386.EXE.
The "Usable BIOS ROM area" specified above is effective only with the corresponding BIOS P/N. It is subject to be changed by a future system program upgrade. It is not guaranteed for future use.
- Memory Range F000-FFFF is reserved for BIOS.

The BIOS P/N and the date can be viewed by invoking Easy-Setup and selecting Config followed by System Board.

Trademarks

* IBM and ThinkPad are registered trademarks of IBM Corporation.
* Windows is a registered trademark of Microsoft Corporation.
* Pentium is a registered trademark of Intel Corporation.

Search Keywords

Hint Category

BIOS

Date Created

27-06-96

Last Updated

17-07-98

Revision Date

16-07-99

Brand

IBM ThinkPad

Product Family

ThinkPad 760C, ThinkPad 760CD, ThinkPad 760L/LD

Machine Type

9546, 9547

Model

Various

TypeModel

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