Dell Copyright (C) 2004, All Rights reserved. www.dell.com BIOS Release Notes =================================================================== =================================================================== Systems: Dell Latitude C640 Series (Memory location F000:E840) Version: A10 (Memory location F000:E842) Build Date: 01/12/04 (Memory location FFFF:0005) The following updates were made to the A09 BIOS to create the A10 BIOS: Fixes: 1. Fixed issue where Celeron processors may always run throttled under Windows XP SP1. 2. Fixed issue where the operating system may report erroneous battery information if a battery swap is performed while the system is in Standby. The BIOS release has been validated on the following operating systems: 1. Microsoft Windows NT 4.0 2. Microsoft Windows 98 Second Edition APM Only 3. Microsoft Windows 2000 ACPI 4. Microsoft Windows XP ACPI =================================================================== =================================================================== Systems: Dell Latitude C640 Series (Memory location F000:E840) Version: A09 (Memory location F000:E842) Build Date: 05/15/03 (Memory location FFFF:0005) The following updates were made to the A08 BIOS to create the A09 BIOS: Fixes: 1. Fixed issue in which the system may display the following error message after the BIOS is flashed using Floppy-less or Remote BIOS Update: "The System ROM version and the Keyboard Controller ROM 2. Fixed issue where the system would fail to boot to an available CD-rom drive if the system hard disk drive was not installed. 3. Fixed issue where an ACPI battery gauge may not report the correct percent capacity. 4. Fixed issue under APM operating systems where the active display may change after performing a suspend-to-disk with a CRT attached. Enhancements: 1. Added support for newer revisions of the Pentium 4 processor. 2. Added "Configure Passwords" field to the System Security page in System Setup. This feature allows the system administrator password to be used to prevent users from installing system or hard disk drive passwords. The BIOS release has been validated on the following operating systems: 1. Microsoft Windows NT 4.0 2. Microsoft Windows 98 Second Edition APM Only 3. Microsoft Windows 2000 ACPI 4. Microsoft Windows XP ACPI =================================================================== =================================================================== Systems: Dell Latitude C640 Series (Memory location F000:E840) Version: A08 (Memory location F000:E842) Build Date: 03/04/03 (Memory location FFFF:0005) The following updates were made to the A07 BIOS to create the A08 BIOS: Fixes: 1. Fixed issue in which modular bay and dock media bay drives may not be recognized correctly by SMBIOS under ACPI operating systems. 2. Fixed poor modem and serial port connectivity under APM and ACPI operating systems. 3. Fixed issue in which System Setup displays the wrong capacity for hard disk drives larger than 65GB. 4. Fixed problem in which SMBIOS fails to notify Dell Open Manage Client Instrumentation of system fan failures. Enhancements: 1. Updated the Pre-boot System Assessment (PSA) diagnostics to build version 3009. The BIOS release has been validated on the following operating systems: 1. Microsoft Windows NT 4.0 2. Microsoft Windows 98 Second Edition APM Only 3. Microsoft Windows 2000 ACPI 4. Microsoft Windows XP ACPI =================================================================== =================================================================== Systems: Dell Latitude C640 Series (Memory location F000:E840) Version: A07 (Memory location F000:E842) Build Date: 01/24/03 (Memory location FFFF:0005) The following updates were made to the A05 BIOS to create the A07 BIOS: Fixes: 1. Fixed problem where the Madge PCMCIA Token Ring card may cause the system to lockup under Windows 2000. 2. Fixed problem under Windows 2000 Service Pack 3 where a Matrox Millennium G450 PCI card installed in a C/Dock or C/DockII PCI slot would be listed in Device Manager with an error. 3. Fixed a problem with an erratic USB Mouse while running the Dell Diagnostic utilities. 4. Fixed problem where there may be slow device recognition for USB devices connected to HUBs during POST and while in use. 5. Fixed problem where the hot-key will not respond under ACPI with AC attached and no batteries installed. 6. Fixed problem where the keyboard LED will remain on while running the Pre-boot System Assessment (PSA) diagnostics. 7. Fixed intermittent failure in which the BIOS password screen will appear blank when resuming from Standby. 8. Fixed problem where the USB signal strength would deteriorate when using 5 meter long cables. Enhancements: 1. Added support for newer Celeron processors. 2. Enhanced BIOS code support to allow Computrace Security Software to run more reliably. The BIOS release has been validated on the following operating systems: 1. Microsoft Windows NT 4.0 2. Microsoft Windows 98 Second Edition APM Only 3. Microsoft Windows 2000 ACPI 4. Microsoft Windows XP ACPI =================================================================== =================================================================== Systems: Dell Latitude C640 Series (Memory location F000:E840) Version: A06 (Memory location F000:E842) Build Date: 01/21/03 (Memory location FFFF:0005) Never released =================================================================== =================================================================== Systems: Dell Latitude C640 Series (Memory location F000:E840) Version: A05 (Memory location F000:E842) Build Date: 12/10/02 (Memory location FFFF:0005) The following updates were made to the A04 BIOS to create the A05 BIOS: Enhancements: 1. Updated system name to include the word "Series" as displayed during BIOS POST and BIOS setup screen. The BIOS release has been validated on the following operating systems: 1. Microsoft Windows NT 4.0 2. Microsoft Windows 98 Second Edition APM Only 3. Microsoft Windows 2000 ACPI 4. Microsoft Windows XP ACPI =================================================================== =================================================================== Systems: Dell Latitude C640 (Memory location F000:E840) Version: A04 (Memory location F000:E842) Build Date: 11/05/02 (Memory location FFFF:0005) The following updates were made to the A03 BIOS to create the A04 BIOS: Issues Fixed: 1. Fixed issue in which ISA devices could not be manually reconfigured to use IRQ 10 in Device Manager. 2. Fixed issue in which the system cannot enter Standby with a Simpletech Flash Card installed in the PCMCIA slot. 3. Fixed problem in which large file transfers using the serial port may fail. 4. Fixed issue in which some bootable CDs do not boot. 5. Decreased the amount of time required to wake from Standby under Windows XP. 6. Fixed erratic mouse behavior problem that may occur when using a USB mouse. 7. Fixed issue in which some external serial port devices attached to the system may detect a break or framing error when the OS loads. 8. Improved accuracy of the battery discharge rate reported to ACPI for purposes of battery time remaining calculations. 9. Fixed issue in which the user may need to suspend touchpad and trackstick use for several seconds before either device will respond. Enhancements: 1. Replaced with as the hotkey used to exit the One Time Boot Menu screen. 2. Improved battery status reporting algorithm to reduce time spent in SMM when updating the OS battery information. 3. Optimized the thermal management algorithm. 4. Added support for newer revisions of the Pentium 4 processor. 5. Updated the ATI M7 video BIOS to version 006.006.006.008.005. The BIOS release has been validated on the following operating systems: 1. Microsoft Windows NT 4.0 2. Microsoft Windows 98 Second Edition APM Only 3. Microsoft Windows 2000 ACPI 4. Microsoft Windows XP ACPI =================================================================== =================================================================== Systems: Dell Latitude C640 (Memory location F000:E840) Version: A03 (Memory location F000:E842) Build Date: 08/23/02 (Memory location FFFF:0005) The following updates were made to the A02 BIOS to create the A03 BIOS: Issues Fixed: 1. Fixed bloom during DELLDIAG video test on Hitachi SXGA+ panel. 2. Fixed the issue in which ACPI OSes on a lid open event will resume the display to CRT only regardless of the system was in simul mode before the lid close event. 3. Fixed the issue in which throttling state is not properly set/returned for Intel SpeedStep Applet. Enhancements: 1. Added support for Pentium 4 C1 step processor. 2. Added BroadCom wireless Mini-PCI card detection. 3. Added support for new version of DELLDIAG interface. 4. Added EDIAGS LED pattern support. 5. Added Post Memory Manager. 6. Enabled CPU throttling in Max Battery mode. 7. Updated the thermal table. 8. Changed fan start PWM. 9. Changed maximum CPU speed in SMBIOS table. 10. Changed the marketing name of video controller. 11. Updated the ATI VBIOS version to 006.005.006.008.005. The BIOS release has been validated on the following operating systems: 1. Microsoft Windows NT 4.0 2. Microsoft Windows 98 Second Edition APM Only 3. Microsoft Windows 2000 ACPI 4. Microsoft Windows XP ACPI =================================================================== =================================================================== Systems: Dell Latitude C640 (Memory location F000:E840) Version: A02 (Memory location F000:E842) Build Date: 08/05/02 (Memory location FFFF:0005) The following updates were made to the A01 BIOS to create the A02 BIOS: Issues Fixed: 1. Decreased the amount of time required to wake from Standby under Windows XP. The BIOS release has been validated on the following operating systems: 1. Microsoft Windows NT 4.0 2. Microsoft Windows 98 Second Edition APM Only 3. Microsoft Windows 2000 ACPI 4. Microsoft Windows XP ACPI =================================================================== =================================================================== Systems: Dell Latitude C640 (Memory location F000:E840) Version: A01 (Memory location F000:E842) Build Date: 06/19/02 (Memory location FFFF:0005) The following updates were made to the A00 BIOS to create the A01 BIOS: Issues Fixed: 1. Fixed the issue in which W2K/XP hung at resume after warm-undock. The BIOS release has been validated on the following operating systems: 1. Microsoft Windows 98 Second Edition APM Only 2. Microsoft Windows 2000 ACPI 3. Microsoft Windows XP ACPI =================================================================== =================================================================== Systems: Dell Latitude C640 (Memory location F000:E840) Version: A00 (Memory location F000:E842) Build Date: 06/12/02 (Memory location FFFF:0005) Initial release of the BIOS Video BIOS is ATI 006.003.006.008.005 The BIOS release has been validated on the following operating systems: 1. Microsoft Windows 98 Second Edition APM Only 2. Microsoft Windows 2000 ACPI 3. Microsoft Windows XP ACPI