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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: flaviosr on May 24, 2008, 08:27:36 PM
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Hi to all,
take a look at my signature to see the config of my A2000.
I decided to add a true HD for the A2286 and I bought an XT SCSI controller (I have only one 8 bit slot), a Future Domain TMC-850MEX... everything seems ok apart that I cannot see the HD (a Maxtor LXT213SY, and I am sure it works!)!!! :(
Some suggestions? Hints?
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Hi,
try to had the isa extension to get 8 more bits, it's not hard i did it last month.
Your HDD seems to be a 200 MB, but are the terminaisons good and the settings ?
do you see the SCSI "bios" when starting/restarting the pc side ? do you well have the last janius software ?
When i put an Adaptec 15xx with my A2386sx it bips because i have to find the good setup...
Settings (http://stason.org/TULARC/pc/hard-disk-floppy-controllers/E-H/FUTURE-DOMAIN-CORPORATION-Up-to-seven-SCSI-devices-194.html)
and beware of the performances of these 8 bits card, even M$ warn you about performances problems.
Try to get the drivers to see if your hdd is well detected.
drivers (http://www.driverfiles.net/SCSI-Adapters/Future-Domain-(Adaptec)/page,level2,113,18,resultpage1.html)
But do you know well Old PC & DOS ?
that can help you (http://www.adaptec.com/en-US/speed/obsolete/future_domain-trantor/pwrscsi4_exe.htm)
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AFAIR I had a TMC-850MEX included with my first Toshiba XM-4101 CDROM. The one I had lacked a BIOS and for DOS only CDROM drivers were available. Might've worked in Win95 with a general SCSI driver, but it got replaced by a much better NCR810 before that.
Check if your 850 has got a BIOS (28 pin DIL EPROM chip). If it doesn't and/or doesn't show a POST message on system start, then it's the crippled version.
If I'm not mistaked, I might have an old Adaptec AHA-1540 that also worked in 8 bit mode (probably sloooow) - I'll check that, but am afraid, I can't test it any more...
[...]Checked Adaptec's docs: it seems it's not compatible with 8 bit slots. Also found an AHA-1520 (PIO instead of DMA), but that one won't work either.
You'll have to salvage a 16 bit ISA slot from an old PC mobo and add it to your A2000, I'm afraid.
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Zac67 wrote:
AFAIR I had a TMC-850MEX included with my first Toshiba XM-4101 CDROM. The one I had lacked a BIOS and for DOS only CDROM drivers were available. Might've worked in Win95 with a general SCSI driver, but it got replaced by a much better NCR810 before that.
Check if your 850 has got a BIOS (28 pin DIL EPROM chip). If it doesn't and/or doesn't show a POST message on system start, then it's the crippled version.
If I'm not mistaked, I might have an old Adaptec AHA-1540 that also worked in 8 bit mode (probably sloooow) - I'll check that, but am afraid, I can't test it any more...
[...]Checked Adaptec's docs: it seems it's not compatible with 8 bit slots. Also found an AHA-1520 (PIO instead of DMA), but that one won't work either.
You'll have to salvage a 16 bit ISA slot from an old PC mobo and add it to your A2000, I'm afraid.
:(
Ok... my problem is solved! :(
No BIOS chip and no POST message on boot! It's a slave controller...
My problem now is to find a PC-XT SCSI controller... uff...
Apart this card (obviously with BIOS chip), any suggestions?
The A2000 has "only" two ISA 16 bit... one for the A2286AT and one for the video card... :-o
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The A2000 has "only" two ISA 16 bit... one for the A2286AT and one for the video card... :-o
Take a look at the PCB: just the slot connectors are missing and can be added. Get an old AT/386/486 mobo and transplant them. :-)
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Zac67 wrote:
The A2000 has "only" two ISA 16 bit... one for the A2286AT and one for the video card... :-o
Take a look at the PCB: just the slot connectors are missing and can be added. Get an old AT/386/486 mobo and transplant them. :-)
mmm... now understand the following sentences:
"You'll have to salvage a 16 bit ISA slot from an old PC mobo and add it to your A2000"
"try to had the isa extension to get 8 more bits"
... I refused the meaning instinctively! ;)
Have I simply to solder the "missing parts"?!?!? Wow...
No problems?
Is there a small doc somewhere?
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> Have I simply to solder the "missing parts"?!?!? Wow...
Yep.
> No problems?
Nope. None to be expected.
> Is there a small doc somewhere?
What for? Just put them in, solder the pins and you're set. Works for at least 99%. Stingy C= just had to save on those .30.
PS: you're welcome to one of my old 1542s for postage if you care. ;-)