Mail Archives: opendos/2001/02/24/00:36:27
----- Original Message -----
From: "White Dragon" <white DOT dragon AT tin DOT it>
To: <opendos AT delorie DOT com>
Sent: Friday, February 16, 2001 12:29 AM
Subject: chs pin
> I've never seen the chs Pins. Do you mean Cable select? (not
sure about
> this, cable select automatically select master or slave. So it
can't be the
> one you're talking about. Or yes?)
Yes, I have seen it labled various things. Just another example of
a non-standard standard.
> Well, before i had this system, i have had 2 cdreaders which
gave me
> problems under windows and dos. It was an Oti9xx (labeled
Tae-IL-media or
> similar...) 10x and a samsung 24x max. I guess that the 10x
drive made a
> mess with my controller (ali aladdin5 [asus a5 atx] )and this
prevented my
> system to recognize correctly my second ide controller.
Sometimes i couldn't
> use my cdroms at all!
Yes, and this is the so-called ATAPI standard. Basically all an
IDE controller is, is a buffer between the drive and motherboard.
You do select an IRQ and base address DMA, etc. for each or are
already set for you.
> So i tryed with linux (i was very interested in that os at the
time) and I
> noticed that on the boot procedure it had to reset the drive
(actually the
> probing process stopped on that drive and lost about 30 sec to
find a way to
> communicate with it).
I never ran across that for Linux, but sence I have never used IDE
CDROMs or and other IDE device other than a single HD on my own
computer. The only thing along these lines is I did have to set
the time for SCSI recognition a little higher for my SCSI tape
drive to be recognized. I also had to do this in DOS.
> I don't know if it is similar to Utz Zarwell problem,
> but i
> think that problems with 2 cdroms of different manifacture are >
very common.
And, very few people probably even attempt it.
> I have tried many kind of disk interfaces and architectures:
Esdi,
> ide, eide, microchannel, pci, isa, Vesa local bus... There is
> always an
> incompatibility problem with them. Mainly with other
manifacturer products
> (those strange "shouldn't be" bugs)... Anyone can give me an
acceptable
> reason? ;)
I certainly cannot. Also, it is not always with different brands,
sometimes it is backward compatibilty even with the same brand.
> Another example. Agp is aknowdlege to be an universal standard.
Well, last
> year i decided to change my Ati rage pro 8mb with a newer Video
card.
> Because i had an Asus mainboard i wanted to buy a board from the
same brand.
> Asus 4400 (or similar) which mounted nvidia TNT2 MX. It had
video IN/OUT so
> it was perfect for my video editing needs. It was also cheap
(70$ more or
> less)but on the box was written (with a tiny 9 points character)
"we
> raccomend to not use this board with ali aladdin5 agp chipsets".
What the
> he#@!
What you probably ran into there was an OEM board made for ASUS
and ASUS themselves probably could not write a driver for that
chipset. The company that buys these OEM boards often have their
own BIOS and they are also responsible for writing drivers for OEM
products. I ran into this mess with Gateway with those OEM
boards.Even brand name boards made for these companies like
Gateway, they have to provide their own drivers.
> There are only 3 MainBoard (and 3 video chipset designers...)
brands chipset
> that support AGP, and none of them products is fully compatible
with the
> standard! Plus, Asus sells hardware which is not compatible with
its own
> hardware (asus TNT2 MX and Asus A5)!!!
Yes, see above about OEM boards.
I have an NCR 53c825 SCSI controller. I wanted updated drivers for
it. I went to the NCR site and found they no longer make these
chips and the whole ball of wax was bought by Symbios. I went to
their site and got the latest software and drivers. They did not
work very well. So after doing some research, I found that Tyan
actually manufactured the board. I went to Tyan's site and
downloaded their latest software and drivers. Those drivers work
just fine.
> Should we talk about the i740 bug?
>
> "This Hard Disk uses the zzz yyy standard, BUT we recommend to
not use it
> with yyy zzz products. So, for optimal performances we recommend
to buy only
> our hardware..."
Then when that company goes out of business or is bought out by a
competitor, your hardware becomes obsolete!
Pat
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