********************************************************************
* *
* A05 *
* *
********************************************************************
DELL COMPUTER CORPORATION
BIOS RELEASE NOTES
Copyright 1995 Dell Computer Corporation. All rights reserved.
System: XPS PxxxC
Version: A05
Release Date: 12/14/95
The following changes were made to the A04 BIOS to generate the A05
BIOS:
(These items apply to the SYSTEM BIOS)
1. Win95 certification requirements update.
2. Password code modified to allow backspace.
3. APM code modified to work correctly with serial mouse.
4. Fixed Disk drive ready algorithm modified.
5. Added PB to the Cache string when 512K pipeline burst cache is
detected.
6. Added code to support higher speed CPUs.
********************************************************************
* *
* A04 *
* *
********************************************************************
DELL COMPUTER CORPORATION
BIOS RELEASE NOTES
Copyright 1995 Dell Computer Corporation. All rights reserved.
System: XPS PxxxC
Version: A04
Release Date: 9/26/95
The following changes were made to the A02 BIOS to generate the A04
BIOS:
(These items apply to the SYSTEM BIOS)
1. Added PB to the Cache string when pipeline burst cache is detected.
2. Fixed problem with the startup string on the TEAC 6X CD-ROM to show
proper ID of CD-56E.
3. Fixed problem with Adaptec SCSI/IDE CDROM booting.
4. Added PB to the Cache string when pipeline burst cache is detected.
5. Hitachi CDR-7730 set to mode 0 IORDY to solve timing problems.
6. Hot keys disabled during password.
7. Fixed problem with the CD-ROM TEAC 6X taking too long during POST after
floppy detection.
8. Added text to the Boot Sequence field in the Setup utility for the
CD-ROM boot.
9. Fixed the problem which was causing an error to be displayed at the end
of post indicating NVRAM Checksum Invalid, NVRAM Cleared.
10. Changed the CMOS Defaults to match what was on A02.
11. Changed Drive Type help text to accomodate the new Physical drive
mapping.
12. Fixed a problem with password prompt was being skipped if Setup
Utility was entered and exited without bootingthe system.
13. Fixed a problem with PIIX IDE Master latency Timer programming which
was causing a GP fault when disabled in Win 95.
14. Changed the CMOS clear procedure to check for all bytes the same VS.
all bytes zero.
15. Added support to Intel Specific Int15 to also return CPUs internal
speed.
16. Added support for Turbo/Deturbo in Protected Mode.
17. Added code to reset the IDE hard drives before a hard reset is issued
to fix a problem with slow drives and OS/2 Warp shutting down.
18. Added National 306B support.
19. Changed code to correctly return the status of the PIIX IDE.
20. Changed mouse devnode from static node to dynamic node.
21. Added code to map the IDE drives Physically vs. Logically in the Setup
Utility.
22. Changed the resource allocation per Win 95. This means that IPL and
Generic device resources are allocated before PCI resources are
allocated.
23. Added a CMOS Bit to the hard drives to be able to disable Individual
hard drives.
24. Added ATAPI Detection and Boot support.
25. Removed IDE Initialization Timout and Pre Delay per changes to the
ATAPI code which changed the way we wait for the Hard Drive to
respond back to any commands.
26. Changed code to have the IDEC Table float through the Flash area and
dispatch it when needed vs. a fixed address.
27. Added Product Information Storage Capability for Manufacturing and OEM
use.
28. Added support for Int15 AH=C7, Return Memory map Information. This is
required for OS/2 supporting greater than 64M memory.
29. Changed resource manager code to leave a dummy entry in the resource
list when a resource is disabled and released. This gives capability
of enabling the resource within the PnP OS.
30. Added code to program cache line size and Master Latency Timer for
Bridges.
31. Made sure all 32-bit registers are preserved on Get Node calls.
32. Changed PUT and GET parameter checking for invalid combinations. This
allows Win 95 BIOSTEST to pass.
33. Updated code to reflect PnP Rev 1.0A for Node attributes.
34. Took out code which checked for invalid bus for configuration space
read and write. This was a feedback from SIG.
35. Aligned memory requests in 400H block boundries to conform to PCI
Spec.
36. Added code to make sure that a device is initialized and resource
manager data structure is set-up correctly before a resource is freed.
********************************************************************
* *
* A02 *
* *
********************************************************************
DELL COMPUTER CORPORATION
BIOS RELEASE NOTES
Copyright 1995 Dell Computer Corporation. All rights reserved.
System: XPS PxxxC
Version: A02
Release Date: 5/31/95
The following changes were made to the A01 BIOS to generate the A02
BIOS:
(These items apply to the SYSTEM BIOS)
1. Fixed the problem with ATA mode 4 drives were being programmed as Mode
3 drives, where PIIX IDE was being programmed with Mode 4 timings.
2. Changed Serial Port Help Text in the Setup Utility.
3. Added the support for 133Mhz processors.
4. Fixed the problem with keyboard not being detected when using 133Mhz
processors.
********************************************************************
* *
* A01 *
* *
********************************************************************
DELL COMPUTER CORPORATION
BIOS RELEASE NOTES
Copyright 1995 Dell Computer Corporation. All rights reserved.
System: XPS PxxxC
Version: A01
Release Date: 4/21/95
The following changes were made to the A00 BIOS to generate the A01
BIOS:
(These items apply to the SYSTEM BIOS)
1. Changed the hard drive default values to have the Auto for Drive 0 and
None for all other drives.
2. Added Video Power Down field in Setup Utility to the Setup Password
list to be hidden when Setup Password is installed.
********************************************************************
* *
* A00 *
* *
********************************************************************
DELL COMPUTER CORPORATION
BIOS RELEASE NOTES
Copyright 1995 Dell Computer Corporation. All rights reserved.
System: XPS PxxxC
Version: A00
Release Date: 4/4/95
1. Initial release.
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.