24 Jun
2023
24 Jun
'23
5:46 p.m.
I think that the tubo mode is not happening, it's running like a regular
XT. I have seen it go into Turbo mode once or twice, so there is a
marginal chip somewhere that needs to be replaced. That's my final
decision.
Either way, I have filled the hard drive up with various software from the
time period and put it out for people to use in the museum. If you're in
the south-eastern PA area, feel free to stop by and check it out.
The PC Limited machine from the VCForum I think is the same one as this
one. I think the guy gave up on it and donated to the museum. It needed a
new power supply, hard drive controller, disk drive to get it running
again. I put MS DOS, removed the botched IBM DOS someone had attempted to
load.
Really, you're right. It's just a cheap clone, but it's a cheap clone that
happens to be one of the first PCs made by what would become Dell Computer,
worth saving and keeping running!
B
On Sat, Jun 24, 2023 at 1:36 PM John Herron via cctalk <
cctalk(a)classiccmp.org> wrote:
On Fri, Jun 23, 2023, 6:59 PM Bill Degnan via cctalk
<
cctalk(a)classiccmp.org>
wrote:
wrote:
> On Fri, 23 Jun 2023, Bill Degnan via cctalk wrote:
> > It boots fine, did I say it did not boot? I don't remember. There
is
On Fri, Jun 23, 2023, 6:33 PM Fred Cisin via
cctalk <
cctalk(a)classiccmp.org
no
is a
> arcnet card, it's not the later model
PCs LIMITED box, does not match
the
> red label logo that came out in 1986
Well, I appreciate that people answered my question. I sometimes ask
questions and then proceed to work on it until I figure it out. There
THESYS "MULTI/RAM card and that was the card
with the password ROM. I
found the dip switch "PW" and turned it off. Problem solved. The Turbo
error #04 is still a mystery, but it does not prevent me from using the
system. I am thinking there's an incorrect but incidental switch
setting.
It could be a RAM chip but I have no proof.
Chkdsk returns an full 640K.
I'm very curious if it gets figured out or if there are any publications
maybe around the time to help identify the parts Dell would have used. I
could be thinking too simply for the college years he built them in his
dorm so I'd imagine common off the shelf parts and generally just an IBM
clone. I would think some other similar era computers would also have that
error code.
I started reading another person's post with a similar error on vcfed
forums but I don't think they ever really solved it. There was an attempt
to dump the bios to see what it might be checking (beyond my depth of
knowledge).
I guess that would let you know if it's a bios or other device printing
the error. I assume you've booted it with no addon cards and still see the
message.