Amiga.org

Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Gwion on May 26, 2007, 11:08:46 PM

Title: A1200 Problem!!!
Post by: Gwion on May 26, 2007, 11:08:46 PM
I have a A1200 and i took the roms out and put them back in and all i get is a blank screen! And they get boiling hot! :madashell:
Can someone help me?
Title: Re: A1200 Problem!!!
Post by: Homer on May 26, 2007, 11:17:03 PM
Erm, you have to put them back exactly where they came from  :-o

Questions:

1. Why did you take them out ?
2. Did you put them back in the right sockets ?
3. Did you leave the gap at the correct end ?
4. Did you protect the chips from static damage while they were out of the A1200 ?

Good luck  :-)
Title: Re: A1200 Problem!!!
Post by: Gwion on May 26, 2007, 11:19:07 PM
I took them out as i had a wierd video problem is there a website that will show me how to put them back in and where?
Title: Re: A1200 Problem!!!
Post by: amiga92570 on May 26, 2007, 11:19:19 PM
You probably installed them backward. That can damage the board. I would make sure you have chips installed with the notch or dimple on the chip facing the PCMCIA slot. Take a look at this photo. Also make sure you have them in the socket correctly as shown. http://www.amiga-hardware.com/download_photos/a1200mb_rev1d4.jpg
Title: Re: A1200 Problem!!!
Post by: Gwion on May 26, 2007, 11:42:48 PM
I think i just need new roms as when the roms are out the green light is on and when the roms are in its off
Title: Re: A1200 Problem!!!
Post by: Gwion on May 26, 2007, 11:45:31 PM
Could i put A500 roms in the A1200?
Title: Re: A1200 Problem!!!
Post by: amiga92570 on May 26, 2007, 11:49:09 PM
No, There is only one rom in the 500. They are not compatible. Also try switching the chips to make sure you have them in the right socket.
Title: Re: A1200 Problem!!!
Post by: amigakid on May 27, 2007, 12:10:25 AM
You prob put them in backwards.  The A500 ROM will not work as there are 2 in the A1200.  I would look on Ebay for some ROMS.  I'll look and see if I still have my 3.0 ROMS for my A1200.  Cheers and good luck
Title: Re: A1200 Problem!!!
Post by: Gwion on May 27, 2007, 12:19:12 AM
I've tried them all ways possible but it still shows that blank screen :(
Title: Re: A1200 Problem!!!
Post by: _ThEcRoW on May 27, 2007, 03:39:20 AM
You possibly fried your chips. Is also possible to destroy the mobo? I always thought that were the chips the ones that could get broken in case of wrong way connection.
Title: Re: A1200 Problem!!!
Post by: odin on May 27, 2007, 03:44:29 AM
:-(
Title: Re: A1200 Problem!!!
Post by: Brian on May 27, 2007, 06:42:10 AM
On the A1200 you need to orinetate the ROMs so the notch on the rom is on par with the notch on the ROM sockets... however the sockets have 2 pins to much and therefore you should leave the first pair of pins free. If you do not do this or turn it around it'll fry the ROMs, however the motherboard will most likely be just fine.
Title: Re: A1200 Problem!!!
Post by: Gwion on May 27, 2007, 11:43:20 AM
Yes they are fried when i put them in just nothing!
I'll just buy some new 3.0 roms!
The board is ok!! (thank god) :-D
Title: Re: A1200 Problem!!!
Post by: orange on May 27, 2007, 11:50:40 AM
they should be really really cheap as most of us switched to 3.1
Title: Re: A1200 Problem!!!
Post by: twizzle on May 27, 2007, 05:20:25 PM
hi Gwion
i have some 3.0 roms you can have :-)
pm me with your address details
mike
Title: Re: A1200 Problem!!!
Post by: twizzle on May 27, 2007, 05:23:15 PM
hi Gwion
i have some 3.0 roms you can have :-)
pm me with your address details
mike
Title: Re: A1200 Problem!!!
Post by: magistral on May 27, 2007, 08:11:18 PM
@amiga92750

And what is the rightmost blue connector? Never seen that...
Title: Re: A1200 Problem!!!
Post by: amiga_3k on May 27, 2007, 08:19:53 PM
@magistral:

That's a mouse/joystick connector. Not all (maybe none) A1200 motherboards had both on the mainboard.
Title: Re: A1200 Problem!!!
Post by: sir_inferno on May 27, 2007, 08:19:55 PM
it looks like the second mouse/joy socket...some a1200 motherboards had the second one stuck on like that rather than having it directly attached to the pcb