Optiplex GX260 & Boot from USB 2.0 pendrive

DELL COMPUTER CORPORATION
BIOS RELEASE NOTES
Copyright 2003 Dell Computer Corporation.  All rights reserved.

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System:        Optiplex GX260
Version:       A09
Release Date:  11/01/2004

The following changes have been made to BIOS rev A08 to create A09:

1. Update Hotkey processing.

2. Fix ACPI tables for PCMCIA type devices.


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System:        Optiplex GX260
Version:       A08
Release Date:  09/24/2003

The following changes have been made to BIOS rev A07 to create A08:

1. Updated processor microcodes.

2. Prevent waking on wrong days when set to wake on weekdays only.

3. Added to support in PXE boot environments with Spanning Tree support
  enabled.

4. Fixed PCMCIA adapter support degraded in earlier revision.

5. Restored remote functionality of the SMBIOS PXE boot token.


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System:        Optiplex GX260
Version:       A07
Release Date:  05/13/2003

The following changes have been made to BIOS rev A06 to create A07:

1. Added display of error message if an FMB 1.5 processor is inserted.

2. Fixed error in 8 MB integrated video frame buffer memory allocation.

3. Added display of the Intel processor badge on the Dell splash screen.

4. Permit utility partition to be on any DOS accessible drive.

5. Updated processor microcodes.

6. Minor change to the RBU header to set PRGBOOT.

7. Correct amount of memory displayed on setup screen when 8 MB integrated
  video frame buffer is allocated.

8. Improved SMART error message reporting.

9. Insure diag LEDs show GGGG after a sucessful PXE boot.

10.Fixed possible issue with the auto-power-on WEEKDAYS function of SETUP.

11.Fix issue with some multichannel PCI graphics adapters and other PCI
  cards with multiple processors on the card.

12.Fixed POST hot-key reboot persistence problem.

13.Fixed problem resuming from S3 Stand by.

14.Updated USB code to fix system hangs with some USB multi-function
  printers, USB disk keys and USB CD-ROM drives. Improved USB boot
  operations for USB devices. Fixed USB bulk transfer end point checking.
  Enhanced USB support in Manufacturing. Fix issues with USB hard drive,
  key, CD and floppy booting when large numbers of bootable USB devices
  are present.

15.Improved USB keyboard and mouse emulation and clear USB Keyboard SHIFT
  status on disconnect. Ignore error packets from a USB mouse to prevent
  erratic mouse movement after a USB mouse is unplugged.

16.Eliminate several limited CDROM boot and install issues with some Linux
  configurations.

17.Flush F3/F10/F12 state information after handling each option ROM setup.
  Failing to do so could cause an unexpected boot menu appearance, etc.

18.Eliminate a case where an option ROM BIOS might fail to be cached.

19.Fix hang when the F12 boot menu is brought up with no bootable devices
  attached.

20.Add support for some 1920x1200 and 1024x768 modes in the integrated
  video.


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System:        Optiplex GX260
Version:       A06
Release Date:  04/28/2003

The following changes have been made to BIOS rev A05 to create A06:

1. Updated microcode for Northwood B0, C1, D0 and D1 processors.
2. Added support for RPL network boot if enabled in the BIOS setup screen
  and updated network PXE code to handle spanning tree issues completely
  and correctly.
3. Improved detection of hyperthreaded processors on resume from suspend and
  hibernate states.
4. Eliminated rare, nonrepeatable RTC and memory boot failures.
5. Updated intgrated video BIOS to correct an issue with full screen
  text mode switching and an issue with some LCD monitors and the DVI
  interface card.
6. Minor improvements in USB mouse polling speed, in USB floppy configuration
  control and in Bonzai USB minidisk support.


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System:        Optiplex GX260
Version:       A05
Release Date:  02/26/2003

The following changes have been made to BIOS rev A04 to create A05:

1. Remove Intel NIC PXE code added in A04 to prevent possible NIC errors.


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System:        Optiplex GX260
Version:       A04
Release Date:  01/28/2003

The following changes have been made to BIOS rev A03 to create A04:

1. Prevent sending PET alert when there is no boot device.
2. Allow booting from USB floppy and flash devices.
3. Added support for 48-bit LBA hard drives (> 137 GB).
4. Report memory size correctly in the SMBIOS structure type 11 entry.
5. Update SMBIOS token handling for HD Acoustic token.
6. Save and restore (across S3) AGP calibration.
7. Add support for hyperthreading.
8. Add Intel NIC PXE code fix for spanning trees.
9. Passes Microsoft HCT 11.


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System:        Optiplex GX260
Version:       A03
Release Date:  09/24/2002

The following changes have been made to BIOS rev A02 to create A03:

1. Properly set system power state when AC Power is lost in S3.
2. Support for multiple PCI adapters with PCI-to-PCI bridges and memory
  devices behind the bridges added.
3. Fix to improve handling of stalled USB keyboards and mice (Cherry
  smartcard keyboard, specifically).
4. Update SMBIOS tokens for UDMA/HD, HD Acoustic, S1/S3, JT_enable.
5. Added support for newer core chipsets.
6. Update PXE code to reduce timeouts when used with Gigabit switches
  with spanning tree protocol enabled.

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System:        Optiplex GX260
Version:       A02
Release Date:  07/25/2002

The following changes have been made to BIOS rev A01 to create A02:

1.  Added support for new cache ID on Celeron 2.0 processors.


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System:        Optiplex GX260
Version:       A01
Release Date:  07/19/2002

The following changes have been made to BIOS rev A00 to create A01:

1.  Added faster hard drive access support for shorter Hibernate resumes.
2.  Added chipset revision compatibility mechanism.
3.  Added System Setup performance settings for hard drives.
4.  Added "Series" to system name.
5.  Added support for Northwood 0F27h processors.
6.  Updated memory code to version 1.2.
7.  Fixed handling of USB 2.0 PCI cards.
8.  Fixed a race condition involving the power button override feature on
   a Standby resume.
9.  Reduced POST processing time when USB keyboard or mice are connected.
10. Fixed several ASF issues (yellow bang, double alerts, intermittent
   failure).
11. Fixed possible CMOS corruption due to BIOS/OMCI interface.
12. Removed display of F1/F2 prompt when keyboard error is displayed.
13. Fixed support for Cherry USB keyboard.
14. Updated SMBIOS table's processor structure maximum cpu speed value.
15. Updated BIOS and DOS support of USB 106 keyboard special characters.


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System:        Optiplex GX260
Version:       A00
Release Date:  5/10/2002

1. Initial BIOS Release.