gpw@ihlpf.ATT.COM (Wilkin) (05/20/88)
> In order to convert your machine to EGA compatibility, you > will need to: > i) Make sure your ROM BIOS is at level 1.43 or later. This includes 2 EPROMS and one PAL chip > ii) Order two replacement chips on your video board; one of them Not exactly true, You need 1 Video Disabler if you have a P4 video card, a new PAL (Part of a non-AT&T Kit) for the P3 or P2 video card, and NO PARTS if you have a P8 video card. > iii) Find someone who makes an EGA card which can go in a 6300. As PARADISE, TAXAN, SOME OTHERS (STB)...... It is using the AT&T monitor that is tough, a Mult sync works fine. The best choice is the TAXAN 557 GOLD Card If you have an AT&T 318 monitor. The cable is easy to make. > A few gotchya's: You need to know your video card version > before you call AT&T to order your ROM BIOS (if needed) and the > two replacement bugs. To find out your video board version, pop the Not True Just order the 1.43 ROM BIOS Kit... You only need the video card info to order the disabling kit. Here's a source for a KIT to correct a software bug built into the 6300 (16 bit i/o inverted), it works but need a better connector for the 16bit slots. gpw William J. Allen, 10120 Lockwood Drive, Cupertino, CA 95014, (408) 257-9739, has developed a hardware fix for the hi-byte low-byte order problem with the AT&T 6300's bus converter board. This board, which he sells for $45 mounts in one of the 16 bit connector slots (uses a signal from this slot) and connects to th PROM chip socket on the bus converter board by a ribbon cable. The front half of the 16 bit slot remains available for a half card. He reports it permits installation of a EGA card (he is using a VEGA Deluxe) and all programs he has tried so far work fine. This includes WINDOWS 1.x and 2.0, PC PaintBrush, Generic CADD in EGA mode, 123 (including 132/43 mode), QUATTRO and AUTOCAD. His $45 kit includes the board for the fix and the needed disabler chip for the AT&T VDC. HIS KIT USES A PAL TYPE DISABLERC, THIS WILL WORK ON OLDER 6300s. NOTE: If you have a memory card to bring your 6300 up to 640K you may experience problems getting some EGA cards to work. You will also need a newer DOS version (AT&T 3.2 v2.02 or newer) to get ANY EGA basic or special(ANSI) functions to work. DO THIS AT YOU OWN RISK gpw -- George Wilkin AT&T Network Systems,(IH MAIN BL) 2000 N. Naperville Rd. Rm IH4A157 Naperville, IL. 60566-7033 att!ihlpf!gpw work ph# (312) 979-4317