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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: harryjon35 on May 15, 2004, 10:30:46 AM
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Hi there !
I have the following problem with my new G-Rex 1200 and
I wonder if anyone of you can point me in the right direction...
I installed the G-Rex correctly onto my BlizzardPPC, but when I try to start the Amiga it won't power up. Strangely this only happens when I connect the P8/P9 power connectors to the PCI board. If I unplug them, the Amiga starts up. It is even stranger that the G-Rex accepts the PCI cards plugged into it even with no power connected. Currently I use a nic and a Virge GFX-card that way. But as I plan to use a Voodoo in the future I'd really like the PCI-bus powered...
I'm completely puzzled. :-?
Any ideas ?
Bye,
Harry
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Do *NOT* use the PCI busboard without powering it up!
You risk frying the power circuit on the BPPC and the G-Rex
controller card!
If the G-Rex doesn't work with the AT supply there probably is something wrong with the PSU. Try using an ATX one.
Power it up by sorting the green wire with any ground.
I personally connecting a push-in/push-out switch to my
tower's power button and connected it there.
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Is your BPPC a revision 2?
Does your BPPC have the Grex flashrom on it?
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AmiGR wrote:
If the G-Rex doesn't work with the AT supply there probably is something wrong with the PSU. Try using an ATX one.
It IS a ATX PSU. However it has an adaptor from ATX to AT.
I thought that I need some sort of PIC to connect an ATX PSU to the G-Rex (?)
I don't think that there's anything wrong with the PSU as I've
already tried another ATX PSU...
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To do it electronically, yes, you do need a pic but there's
a much simpler way to do that,as I already said. Just short
the green wire to any ground (black wires) with anything
metallic, just to check if the system boots. If that works
and you don't want your case to be open all the time,
just get a push-in/push-out switch and connect it there.
That's the "official" way of powering up an ATX PSU.