Release Note ==================== DIGITAL PC 5510 and PC 3500 Series System BIOS Version : V1.05 Date : Mar 3 1998 BIOS.ROM - English+French PHLASH.EXE - flash rom utility, PLATFORM.BIN - flash rom utility. (used under DOS to flash) note: This PLATFORM.BIN file is only used under DOS to flash the system BIOS. It is different from the PLATFORM.BIN included in Crisis Recovery Disk which is used under "RECOVERY MODE". Changes to BIOS V1.03 to generate BIOS V1.04 1. DOS/Win95 boot diskette loses Western Digital UDMA drive if connect it as master device and connect the other drive as slave device. 2. Windows 95 loses the CD-ROM drive when the CD is set as Primary Master and the Hard Drive is set as Secondary Master. 3. Int13, function 8, returns incorrect segment (LS-120) 4. Int13, function 48, returns with incorrect flags & information (LS-120) 5. BIOS references to incorrect Fixed Disk Parameter Table. 6. As per the Western Digital recommendations, BIOS reset Fdisk uses at least 5 us during POST. 7. Support for 333MHz Pentium II CPU Changes to BIOS V1.04 to generate BIOS V1.05 1. Year 2000 problem : fail to pass DOSCHK.EXE & CHECK2000.EXE. 2. Intel Pentium II 333 MHz CPU (Deschute) CPU is not properly supported. 3. ECP mode printing is not properly supported. 4. Additional IRQ reservation function is required so that user can reserve a specific IRQ for Legacy ISA device. 5. Multiboot Default Priority needs to be changed (from: Floppy > HDD > CD ROM to: Floppy > CD ROM > HDD). 6. Incorrect CPU core voltage Hi/Lo margin of Pentium II 333 MHz CPU. Multi-Boot II Supporting description... In a MultiBoot system, the first boot device is selectable. It does not default to the Floppy device A: or IDE primary-Master. Any bootable device can be specified as a Master Boot device on the MultiBoot Menu of Setup. This allows you to select the order that boot devices are attempted. This feature is called the "Boot Priority" and is always present. If you select the [Hard Disk] item in the Boot Priority section of Setup and then press the key, the Boot Connection Device menu appears. The Boot Connection Device menu allows you to specify the order in which hard drives are installed into the system during ROM scan (POST code 98h). BOOT MENU: Some CD-ROM drives do not auto-type correctly. This will be apparent during POST when the "CD-ROM identified" message is not displayed. In this case, go into Setup and select the hard disk type for the CD-ROM manually, instead of auto-typing it in Setup. Many advanced operating systems such as Windows 95, Windows NT, OS/2 Warp, Unix, and others, modify the boot sectors of any hard drives that are installed in the system while the OS is being installed. This can cause normally bootable hard drives to be rendered non-bootable, even though the user did not want this behavior. In systems where there are two or more bootable hard drives, it is recommended that all bootable hard drives other than the target of the new OS be removed from the system prior to installing the new OS. Once installation of the new OS is complete, the other bootable drives can then be added back to the system. This simple procedure prevents the advanced Operating Systems from modifying the boot sectors of other bootable drives, thus preserving the MultiBoot II capability of choosing among several hard drives to boot from. Limitation: 1. The audio setup item "Integrated Audio Device: [ENABLED/DISABLED]" function is invalid for NT 4.0. It will always find audio chip under NT 4.0 if audio driver is installed. FOR DIGITAL PC 5510 ONLY