I need cf chips internally maked as fixed - extremely
rare.KomputerBay is the only one that I know of.
Will do a search for your source, thanks.
cheers
DS
On Sun, 27 Dec 2020 07:12:07 +0100 "Frantisek Rysanek"
writes:
> On 26 Dec 2020 at 17:13, Dale E Sterner wrote:
>
> > I've been using the
Dec 27, 2020 3:03:02 AM Frantisek Rysanek :
> On 27 Dec 2020 at 6:42, Jon Brase wrote:
>
>> OK, if modern SATA gets 75, then 25 isn't too concerning. I was
>> worried it might be more like an order of magnitude (or two)
>> difference.
>>
> Um... note that real HDDs have a memory buffer, acting
On 27 Dec 2020 at 6:42, Jon Brase wrote:
>
> Dec 27, 2020 12:05:46 AM Frantisek Rysanek
> :
>
> > On 26 Dec 2020 at 22:40, Jon Brase wrote:
> >>
>
> > 40 MB of RAM in Windows95 - that's something I once had in a
> Pentium
> > 75 MHz :-)
>
> Possibly the same model of machine, given that both
Dec 27, 2020 12:05:46 AM Frantisek Rysanek :
> On 26 Dec 2020 at 22:40, Jon Brase wrote:
>>
> 40 MB of RAM in Windows95 - that's something I once had in a Pentium
> 75 MHz :-)
Possibly the same model of machine, given that both RAM and CPU match, and 40
MiB is a rather idiosyncratic amount
On 26 Dec 2020 at 17:13, Dale E Sterner wrote:
> I've been using the same cf card for years. OS's
> 2000 an higher can only run on KomputerBay cf chips.
> These versions of windows check for fixed or removable.
> XP will give you a memory error on a Sandisk card but
> it still will run poorly.
>
On 26 Dec 2020 at 22:40, Jon Brase wrote:
>
> Actually I anticipate swap usage at about double physical RAM (for a
> total memory usage of 3x physical RAM). I'm using Debian to
> administer the machine (with DOS/Win95 for actual retrocomputing),
> and empirically that runs well (shell only) with
Dec 26, 2020 3:47:44 PM Frantisek Rysanek :
> I've noticed that you want to have about 4 times the swap space
> compared to physical RAM. This means to me that your historical
> machine is starved of RAM, and you envisage enhancing the volume of
> RAM by a quick swap space. Hmm.
> The actual
I've been using the same cf card for years. OS's
2000 an higher can only run on KomputerBay cf chips.
These versions of windows check for fixed or removable.
XP will give you a memory error on a Sandisk card but
it still will run poorly.
Sandisk does make a fixed version but you can't buy them.
On 25 Dec 2020 at 22:36, Jon Brase wrote:
> Dec 25, 2020 3:26:42 PM Frantisek Rysanek
> :
>
> > A) standard desktop Windows (XP or earlier) with swapping left
> operational, 1 year of lifetime sounds about right.
>
> It sounds like you're using the card for the OS + swap, though,
> rather than
Dec 25, 2020 3:26:42 PM Frantisek Rysanek :
> A) standard desktop Windows (XP or earlier) with swapping left operational, 1
> year of lifetime sounds about right.
It sounds like you're using the card for the OS + swap, though, rather than
having separate cards for the OS and swap. My plan is
On 24 Dec 2020 at 13:10, ZB wrote:
> On Tue, Dec 22, 2020 at 02:37:44PM +0100, DosWorld via Freedos-user
> wrote:
>
>> 1. This is bad idea - use flash cards for swap or more modern os
>> (like all windows). I had experience with 16 TF cards, which die
>> after 1 year (rewrite limit). All 16
On Thu, Dec 24, 2020 at 02:00:31PM +0100, tom ehlert wrote:
> this obviously doesn't depend on time, but on the way you use it, in
> particular how much you write to it.
BTW: professional photographers use their CF-cards much more intensively
than I am using it as HDD replacement. Here's a whole
On Thu, Dec 24, 2020 at 02:00:31PM +0100, tom ehlert wrote:
>
> >> 1. This is bad idea - use flash cards for swap or more modern os (like all
> >> windows). I had experience with 16 TF cards, which die after 1 year
> >> (rewrite
> >> limit). All 16 cards work in non-overloaded machines.
>
> >
>> 1. This is bad idea - use flash cards for swap or more modern os (like all
>> windows). I had experience with 16 TF cards, which die after 1 year (rewrite
>> limit). All 16 cards work in non-overloaded machines.
> My CF card is used as "HDD" 3rd month - we'll see in 9 months will it survive.
On Tue, Dec 22, 2020 at 02:37:44PM +0100, DosWorld via Freedos-user wrote:
> 1. This is bad idea - use flash cards for swap or more modern os (like all
> windows). I had experience with 16 TF cards, which die after 1 year (rewrite
> limit). All 16 cards work in non-overloaded machines.
My CF
Hello everybody,
my past experience with embedded PC computers includes a decade when
CompactFlash was the bread and butter bootdisk flash format for the
computers that we used to sell at the time.
As for IDE/CF conversion adapters, I recall a time when the CF cards
did not support DMA
Check the speed of the cf chip. If too fast for your machine, it
might not work. If over 266x I have problems. Sandisk chips are
high quality but they are internally marked as removable. Alot
of programs are made to refuse to run on removables.
Komputerbay cf chips are internally marked as fixed,
> I have a 486 Toshiba laptop and a 286 desktop. Both use CF cards as their
> only storage, connected through cheap mechanical CF<->IDE adapters. It works
> perfectly.
>
Which size (MB) this cards ?
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On 22/12/2020 14:37, DosWorld via Freedos-user wrote:
2. Use last generation of motherboard for Pentium-1 (as minimum) with VIA
Apollo chipset (designed for Pentium and Amd K6/K6-2) - only this chipset
understand ATA100 native and allow connect CF via simple IDE-CF reductor
I have a 486
>> 1. This is bad idea - use flash cards for swap or more modern os (like all
>> windows). I had experience with 16 TF cards, which die after 1 year (rewrite
>> limit). All 16 cards work in non-overloaded machines.
>>
Another point - try use SSD. Like PCIE in "PCIE to IDE" box (one year ago, i
> Primary master: 512 MiB DOS partition, Win 95 above 512 MiB
> Primary slave: possible 512 MiB DOS partition, Linux home and root above 512
> MiB, plus anything Unixy I feel like experimenting with.
> Secondary master: 512 MiB FAT partition for Win 3/9x page files, Linux swap
> above 512
Hi!
If you say you have a 512 MB BIOS limit, your limit probably
is 512 * 63 * 16 * 1024 bytes, in other words a limit in the
number of "heads" (those do not relate to actual surfaces).
Are you sure FreeDOS is affected when you use LBA? Note that
the limit is only 504 * 1024 * 1024 bytes, so
>Remember FAT16 partitions are limited to 2GiB in MS/PC-DOS.
>So, drives are limited to 8GiB.
The BIOS on this machine doesn't like partitions outside of the first 512 MiB
of the disk, so DOS is limited to 512 MiB per disk (but I'm able to run Linux
and Win95 beyond that point).
>Regarding your Linux: On a modern computer, you probably want
>to use a RAM filesystem for temporary files. But you say you
>need a lot of swap, so this is probably no option for you. I
>can predict that if your swap is on CF, your Linux will be at
>least as slow as it was with a harddisk ;-)
My
Hi,
I have two CF adapters. A front side floppy size Startech one in an Athlon XP
system that had an AsRock VIA motherboard until
a few days ago when I upgraded it to an EPoX nForce 2 motherboard. Then I have
another chinese one that is mounted
on the back in an extension bracket on an IBM
Remember FAT16 partitions are limited to 2GiB in MS/PC-DOS.
So, drives are limited to 8GiB.
Check out industrial Flash modules or DiskOnModule.
Read a little about them here: http://www.glitchwrks.com/2010/12/16/xtide
Note: Expensive compared to more modern SATA devices.
I have bought about 25 of these and have only had an issue with one not
working. Not a compatibility issue but a bad solder point on the connector.
Hi! This indeed is a fun topic. CF "disks" are supposed to
understand IDE and you can have purely mechanical adapters
to use them with IDE controllers in your PC. But be aware
that CF were originally popular in good digital photographic,
so they are tuned towards writing a few, large files
IDE <-> Compact Flash adapters seem to be popular for extending the life
of old computing hardware, and I'm looking at replacing the magnetic
disks on my old machines with CF.
However, there seem to be issues with ensuring that the motherboard <->
adapter <-> CF card chain is all compatible.
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