TOS 2.06 Mega STe

Upgrade or replace the ROM.
Fletch
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TOS 2.06 Mega STe

Post by Fletch » Sun Aug 19, 2018 8:33 pm

I received a TOS 2.06 upgrade kit for my Mega STe from Chris this week and am not having luck getting the machine to boot with the new ROMs installed. From everything I see on the web the HI chip is on the left and the LOW is on the right. Does this look right? Any suggestions?

Thanks!

Pete
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troed
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Re: TOS 2.06 Mega STe

Post by troed » Sun Aug 19, 2018 9:03 pm

Yeah that's correct.

What do you get when it tries to boot? What TOS did you have before and was that working?

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exxos
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Re: TOS 2.06 Mega STe

Post by exxos » Sun Aug 19, 2018 9:25 pm

How many pins did the ROM's have you took out ?
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.

Fletch
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Re: TOS 2.06 Mega STe

Post by Fletch » Wed Aug 22, 2018 3:22 am

The TOS 2.05 chips I took out have the same number of pins as the 2.06 ones I purchased. I put the 2.05 ROMs back in and they work fine. Swapped the 2.06 in and out a half dozen times without success. I just thought maybe I had installed the ROMs incorrectly. Oh well, maybe I'll buy another set sometime and try again.

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exxos
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Re: TOS 2.06 Mega STe

Post by exxos » Wed Aug 22, 2018 9:08 am

Fletch wrote:
Wed Aug 22, 2018 3:22 am
The TOS 2.05 chips I took out have the same number of pins as the 2.06 ones I purchased. I put the 2.05 ROMs back in and they work fine. Swapped the 2.06 in and out a half dozen times without success. I just thought maybe I had installed the ROMs incorrectly. Oh well, maybe I'll buy another set sometime and try again.
You can send them back for a re-test if you like, they are all tested before they are sent out and never known any not work in a machine.. I guess you could swap HI & LO just in case I stuck the stickers on wrong.

BTW - the pin on the left chip , bottom left, pin looks like its bent and missed the socket ?

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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.

Fletch
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Joined: Sun Aug 19, 2018 8:23 pm

Re: TOS 2.06 Mega STe

Post by Fletch » Thu Aug 23, 2018 11:56 am

I hastily reinstalled the chips to take the picture of how I had installed them. I put them in many times before this. So yes, in the picture the pin appears to have missed the socket, but not during use.

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exxos
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Re: TOS 2.06 Mega STe

Post by exxos » Fri Aug 24, 2018 2:22 pm

Fletch wrote:
Thu Aug 23, 2018 11:56 am
I hastily reinstalled the chips to take the picture of how I had installed them. I put them in many times before this. So yes, in the picture the pin appears to have missed the socket, but not during use.
I will send you out a new set in a few days. Though I don't know why they wouldn't work, they are all verified before they are sent out.
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.

Fletch
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Re: TOS 2.06 Mega STe

Post by Fletch » Sat Aug 25, 2018 4:14 am

I appreciate that. I have no idea either.

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exxos
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Re: TOS 2.06 Mega STe

Post by exxos » Sat Aug 25, 2018 8:47 am

Fletch wrote:
Sat Aug 25, 2018 4:14 am
I appreciate that. I have no idea either.
Did you try swapping HI & LO ?
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.

Fletch
Posts: 6
Joined: Sun Aug 19, 2018 8:23 pm

Re: TOS 2.06 Mega STe

Post by Fletch » Sat Sep 08, 2018 7:57 pm

Chris,

The replacement ROMS arrived today and they worked immediately. Thanks so much for sending them.

I did try swapping them around on the original set. No go.

The new ones you sent are great though.

Thanks again,

Pete
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