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- Newsgroups: comp.sys.att
- Path: sparky!uunet!cs.utexas.edu!zaphod.mps.ohio-state.edu!uwm.edu!linac!att!cbnewsk!cbnewsj!att-out!cbnewsl!rl
- From: rl@cbnewsl.cb.att.com (roger.h.levy)
- Subject: Re: EGA/VGA cards for ATT6300
- Organization: AT&T Bell Laboratories
- Distribution: na
- Date: Fri, 8 Jan 1993 03:33:34 GMT
- Message-ID: <1993Jan8.033334.20024@cbnewsl.cb.att.com>
- References: <1993Jan7.185533.4937@aio.jsc.nasa.gov>
- Keywords: EGA VGA 6300
- Lines: 69
-
- In article <1993Jan7.185533.4937@aio.jsc.nasa.gov>, jim@kn5f.jsc.nasa.gov writes:
- > I just discovered this newsgroup and I haven't seen an FAQ yet, so I'm asking
- > for information about upgrades for the AT&T 6300. Such as:
- > - which third-party color monitors will work with stock video card
-
- The Amdek 725 RGB monitor works with the stock video card. I doubt
- seriously that it is still available new. This only gives you CGA but
- for text it is a nicer CGA than the conventional variety because it is
- 640 x 400 rather than 640 x 200. There is an enhancement card that can
- get you 16 colors called DEB but there aren't many drivers around for it.
-
- > - which EGA/VGA cards will work with an ATT 6300
-
- Any 8-bit card, however you will also need to acquire a "buss correction
- kit" for the 6300 (not 6300+). This is because 16 bit writes occur in
- reverse byte order on a 6300 compared to a compatible and the order of
- bytes for 16 bit writes matters to EGA/VGA although it probably doesn't
- matter to anything else. The buss correction kit is usually obtained
- from W. Allen Associates (408) 257-9739 for around $50 although there are
- other options. The 6300 is often criticized for having byte order back-
- wards but there was no reference at the time since the 6300 preceded the
- the AT so one might just as well say the AT got it backwards!
-
- > - can the motherboard be upgraded
-
- Sort of. There is a company that makes a variety of 386 motherboard
- that works but it costs a lot more than a conventional 386 motherboard.
- It doesn't seem the way to go although the manufacturer must have
- perceived some kind of market. If you want the info on this company,
- I can get it.
-
- > - if not, which accelerator cards (286,386) will work
- > or if you have a list of what doesn't work the 6300, I'll take that too.
-
- The Sota 286i and 386i are the ones that seem to work best. I think
- this is because they took the trouble to make a cable that reaches the
- 6300's distant processor socket. But with this upgrade, you still
- have an XT-like architecture so forget about himem, Win standard mode,
- etc. SOTA makes a memory board that in theory gives you extended
- memory but most people who have used it don't think it works very well.
-
- > If there is an upgrade path available, I can save a few bucks over a new
- > machine. Any suggestions are appreciated.
-
- Opinion - My machine has a 286i and two expanded memory boards that
- were made by AST specifically for the 6300's non-standard 16-bit slot.
- With that, I can get as far as running Windows 3.0 in real mode including
- some applications that aren't supposed to run on the likes of such a
- machine (e.g CorelDraw 2.0). There are other possibilities in addition
- to what I've mentioned including high density floppies (you'll need
- the pricy Compaticard controller), but you'll invest a lot that could
- go toward a 386 or 486 clone. I keep the machine because I'm fond of
- it despite the fact that it sits within feet of both a 386 and 486.
- Keep it as a standby to run the likes of Wordperfect 5.1 or Lotus 2.01
- but there's little that's new that it will be able to run. If you have
- an urge to upgrade, spend $10 on a V-30 to replace the 8086 - you'll
- get about a 10% boost and I don't know of any other way to get an
- additional 1% in performance for each $1 spent.
-
- Note - The best source of 6300 information was, until about 8 months
- ago, the BBS run by AT&T from Plainfield, NJ. When NCR took it over,
- it was decimated and although it still exists it has no discussion
- groups which were its lifeblood. I wonder if anyone running the AT&T/
- NCR computer operation had any idea that the BBS provided the last
- remaining thread of good feeling people had toward the original AT&T
- PC. There actually are quite a number still out there as became
- obvious just a year ago when this group and a few others were flooded
- with requests asking how to revive the machine's timekeeping, which
- by design oversight, failed exactly 8 years after January 1, 1984.
-