10 August 2008, 20:20 | #1 |
Old Amiga 4000 User
Join Date: Jun 2008
Location: Italy
Age: 52
Posts: 28
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A4000 Internal IDE Controller DEAD
My Amiga 4000D stop to See his Internal IDE controller
the scsi.device aren't load on sistem. I think the alimantation chip is Dead, but i can't locate were part of the A4000 board is involved in the problem. Some CIA ? The GARY Chip ? I want try to ressurect it, and i don't know how initiate the search. |
10 August 2008, 23:00 | #2 |
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Join Date: Oct 2004
Location: Ioannina/Greece
Posts: 5,040
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wth? a 2nd A4000D with dead ide????
Last edited by keropi; 10 August 2008 at 23:20. |
11 August 2008, 01:48 | #3 |
Workbitch 1.3
Join Date: Oct 2001
Location: Melbourne, Australia
Age: 47
Posts: 2,084
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Weird, same thing happened to me around two weeks ago. No idea how to fix it so I ordered a buddha IDE card from amigakit.
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21 August 2008, 22:50 | #4 |
Old Amiga 4000 User
Join Date: Jun 2008
Location: Italy
Age: 52
Posts: 28
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No one Know What chip is involved on the board ?
I think is an Alimentation component, the board is not revealed, from the bootstrap sequence, this indicate, the section of the IDE is completament not revealed. PS: Yes the Hardware is OLD and Slowly all the A4000 DEAD...... The electrolitic capacitor have a lifetime ! |
22 August 2008, 05:17 | #5 |
I hate potatos and shirts
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IDE is controlled by Gary in any Amiga with an on-board IDE...
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22 August 2008, 12:49 | #6 |
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Join Date: Jul 2003
Location: Helsinki / Finland
Age: 43
Posts: 9,900
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What about the poor Gayle?
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22 August 2008, 19:05 | #7 |
I hate potatos and shirts
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Oops! Again!
My mistake! Our chief/moderator is right (I think big J is after me just to catch my mistakes, eheh). |
22 August 2008, 20:53 | #8 |
Registered User
Join Date: Mar 2008
Location: Poland
Posts: 159
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Actually in any Amiga 4000 the IDE controller is implemented using two PAL's. In Amiga 4000D they are U901 (decoder) and U902 (FSM).
Gary only decodes IDE controller memory range. Long time ago I made a replacement for U902 with faster transfer mode (PIO2 or PIO3, I can't remember exactly). But the speed gain wasn't spectacular (a few of 100KB/s increase). |
22 August 2008, 23:19 | #9 |
Needs a life
Join Date: Jan 2008
Location: England
Posts: 1,707
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That's very interesting! (Yes, I do need to get a life, but finding that sort of thing out 15 years after a machine was around makes me grin)
Are 901/902 responsible for anything else? My IDE interface died just before my warpengine did... |
10 June 2011, 07:00 | #10 | |
I hate potatos and shirts
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Quote:
I downloaded the jedecs and will try on. |
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