DualTOS assembly accident

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exxos
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Re: DualTOS assembly accident

Post by exxos » Sun Mar 25, 2018 10:56 pm

I would try cleaning the contacts on the CPU and see if that solves it... I've only ever seen TOS206 bomb when floppy drive isn't connected, though thats normally 2 or 4 bombs not 11..
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Bobrane
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Re: DualTOS assembly accident

Post by Bobrane » Mon Mar 26, 2018 6:05 am

Thanks for your answer.
The CPU is a new HC, and the socket bas been cleaned when mounted. I'll have a look again.
Have a nice day!

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rubber_jonnie
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Re: DualTOS assembly accident

Post by rubber_jonnie » Mon Mar 26, 2018 10:44 am

Just as a sidenote, I replaced the zero ohm jumpers in the board for W102-W104, with proper jumpers, and although I don't think it is necessary with the Dual TOS adapter, it does give you options for troubleshooting.
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Re: DualTOS assembly accident

Post by exxos » Mon Mar 26, 2018 10:53 am

I have had iffy connections on jumpers which drove me nuts for ages one time :(

Even so, TOS does actually almost boot with wrong settings.. though the Atari Fuji is a black square and it crashes somewhere just after that.

I don't understand how one TOS would work and another does not though :shrug: The only issues I have seen/heard of is when people have bad ROM sockets on the motherboard.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

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Bobrane
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Re: DualTOS assembly accident

Post by Bobrane » Mon Mar 26, 2018 12:54 pm

Thanks a lot,
Yes, I was thinking myself about the jumpers. Maybe i will replace them by real jumpers to be sure.
Also, i need to try the 1.62 TOS deeper, because i only saw the desktop. I didn't try to run anything. Just opened up the menu "about" and saw the rainbow fuji. It seemed to be fine though.

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Re: DualTOS assembly accident

Post by exxos » Mon Mar 26, 2018 1:48 pm

Do a long ram test run just to be sure...

viewtopic.php?f=25&t=28
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

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Re: DualTOS assembly accident

Post by Bobrane » Thu Mar 29, 2018 11:30 am

Thank you Exxos,

I made some little "progress".
I've put back my stock TOS 1.62 chips and the board still throws 4 or 11 bombs
I've changed the memory to the stock 4x256Mo >> no change
I've put back the factory power supply >> no change
I've cleaned again the cpu contacts >> no change
I've unplugged the floppy drive >> the board boots up and launch the GEM !
Power OFF, replugged the floppy drive, power ON >> the board boots up and launch GEM. So i launched YAART and let it run for 15 passes >> no errors.
Right after that i've launched GEMBENCH, and got 11 bombs. Power OFF then ON, GEM restarts fine. I've launched GEMBENCH but GEM restarted right away and got me back to desktop.

It seems that i somewhat damaged my motherboard, but really don't know how nor where ...
Before attempting to add the dual TOS she was running fine.
I'm currently stuck in the dark :cry:

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Re: DualTOS assembly accident

Post by exxos » Thu Mar 29, 2018 1:08 pm

I would get a STE diagnostic cart, then you can test things better.. might be bad ROM sockets... happens a lot.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
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Bobrane
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Re: DualTOS assembly accident

Post by Bobrane » Thu Mar 29, 2018 9:55 pm

Hi again, Exxos, and hi all readers of my adventures :D

It seems my motherboard don't like running outside of its metal shield.
I've put it back inside the shield, closed carefully every locks and she booted fine, currently running GEMBENCH.
Weird, isn't it ?

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Re: DualTOS assembly accident

Post by exxos » Thu Mar 29, 2018 9:58 pm

Bobrane wrote:
Thu Mar 29, 2018 9:55 pm
Hi again, Exxos, and hi all readers of my adventures :D

It seems my motherboard don't like running outside of its metal shield.
I've put it back inside the shield, closed carefully every locks and she booted fine, currently running GEMBENCH.
Weird, isn't it ?
You don't have 9 chip RAM do you by any chance ?
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

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