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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: mantisspider on October 28, 2003, 02:21:58 PM

Title: no power to A1200
Post by: mantisspider on October 28, 2003, 02:21:58 PM

:-(
i thought the PSU was dodgy, and thats why the 1200 wouldnt get any power going to it. No little yellow lights and no funny noises.
But I found another PSU and tried that, the same problem.

I plugged in the PSU to the A500+ and it booted up, so the PSU works.

The problem is now, why doesnt the amiga 1200 get any power????
How common is this problem? anyone else had it guys? anyone out there that could diagnose this problem?

I am going to open up the machine and take out the accelerator and see if it boots without it.

apart from that i dont have a clue :-(

I HOPE ITS NOT DEAD!

Title: Re: no power to A1200
Post by: amigamad on October 28, 2003, 03:06:18 PM

Quote

I am going to open up the machine and take out the accelerator and see if it boots without it.

It could be lack of power what type of acelerator is it . :-)

Title: Re: no power to A1200
Post by: Linchpin on October 28, 2003, 03:15:39 PM

Try it bare, that will rule out the power loss problem. Maybe reseat all the chips?? Do you get any output from the video port at all?

Title: Re: no power to A1200
Post by: mantisspider on October 28, 2003, 04:01:01 PM

Hi guys,

i opened her up and found a harddrive in there too.
so i unplugged the harddrive and she boots.

so either a faulty harddrive or not enough power to run the harddrive, accelerator, floppy and mainboard?

yeegads, the PSU says 25W
it also says PSU A600 BSI on the back.

eeek

Title: Re: no power to A1200
Post by: Tomas on October 28, 2003, 04:53:51 PM

The standard a1200 is said to be very weak.... An a500 psu is supposed to be stronger, but dunno if it is still enough for all this addons

Title: Re: no power to A1200
Post by: amigamad on October 28, 2003, 05:44:11 PM

It sounds very much like not enough power a 500 supply is more powerfull but you might need something a bit more powerfull than that . :-)

Title: Re: no power to A1200
Post by: Madgun68 on October 28, 2003, 08:15:20 PM

The brick style power supplies for the Amiga 500/600/1200 are all quite weak. They're quite fine for bare systems, but it's possible to overload them once you start upgrading.  (The difference between the A500 and A1200 power supplies isn't very much either.. It might work okay or might start failing after a while.)

A couple options (if you need something even bigger) would be finding a Big Foot power supply or hacking a AT power supply to work on an Amiga (just a matter of changing connectors.)

Title: Re: no power to A1200
Post by: mantisspider on October 30, 2003, 04:02:22 AM

Whats a Big Foot PSU? is it a big external PSU?