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Demos Amiga Demoscene Archive Forum / General / Serious hardware problem

 

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d0DgE
Member
#1 - Posted: 24 Sep 2010 21:15
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I've got a problem to start my big machine.

It's an A 1200 tower 3.1 ROM equipped with:

- Zorro IV expansion board
- Mediator ZIV
- Blizz 68060/50 64MB RAM
- Voodoo 4

On start the PAL monitor shows two slim grey shaded "copperbars" moving top to bottom.
I know about all the regular dignostic screen colours (red,green,blue,yellow) but I never had this.
I suspect some failure on the Zorro board b/c the power supply is running from the Zorro through the
main expansion slot onto the mother board.

When I strip the Miggy naked and put a standard A1200 power pack on those "copperbars" don't appear.

Does anybody have a clue what this indicates ?
d0DgE
Member
#2 - Posted: 24 Sep 2010 22:17
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OK, the motherboard is all right. So is the accelerator.
It indeed might be the PC/AT power supply (which is rather old).
Crumb
Member
#3 - Posted: 28 Sep 2010 10:14
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@d0Dge

try just the motherboard and the accelerator. Have you got other simm modules to try out?
d0DgE
Member
#4 - Posted: 28 Sep 2010 23:11
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The AT power supply went belly up. Had to order a new ( and stronger) one.
I hope that in the process of breakdown no hardware elements got b0rken.

With the standard A1200 power supply the motherboard, accelerator and a 2.5" HDD worked.
But the crucial hub for my high end system is the ZorroIV board.
Gotta wait for the new power supply to arrive - PC/AT is quite hard to get nowadays.
d0DgE
Member
#5 - Posted: 11 Oct 2010 10:42
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It's all good again. New strong power supply \o/
The original supply in the EBox Towers was lousy 230W !
Crumb
Member
#6 - Posted: 11 Oct 2010 20:21
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d0Dge:

now you can work in more new prods! ;-)

PS: Amigas usually don't need much power but need a lot of power in the +5V lines, 20Amps for +5V is usually enough but the higher the better. +12V will just be used by your HDs and little else.
d0DgE
Member
#7 - Posted: 14 Oct 2010 20:21
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Not with all the periphery this "beast" has ;)

HDD, CD device, floppy, zorro IV, bilzz 060, repulse sound, Mediator ZIV, Voodoo 4 & Ethernet
noname
Member
#8 - Posted: 14 Oct 2010 22:40
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I like it how you mention "floppy" and "beast" in the same post. :)
Mine has floppy and ZIP-drive... *rrroar*

 

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A.D.A. Amiga Demoscene Archive, Version 3.0