Very good job.
I'm tempted to try this myself.
Can all registered uses please login, even just for a few minutes..
It helps build a picture where our "good traffic" is coming from..
Thanks :)
It helps build a picture where our "good traffic" is coming from..
Thanks :)
ATW800/2 in a MonSTErbo powered STE
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chronicthehedgehog
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Re: ATW800/2 in a MonSTErbo powered STE
Hey Jun,
You could design a 3D print bracket here, so you can secure the card nicely to that metal. What do you think?
You could design a 3D print bracket here, so you can secure the card nicely to that metal. What do you think?
- 3.jpg (90.95 KiB) Viewed 764 times
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HigashiJun
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Re: ATW800/2 in a MonSTErbo powered STE
Thanks !
My advice: go for it !
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HigashiJun
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Re: ATW800/2 in a MonSTErbo powered STE
That's a very good idea Steve !Steve wrote: Tue Jun 09, 2026 2:05 pm Hey Jun,
You could design a 3D print bracket here, so you can secure the card nicely to that metal. What do you think?
But the problem is I do not have a 3D printer (due to space restrictions...) and I have never designed something to be honest.
I will try to find another solution though.
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HigashiJun
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- Location: Tokyo
Re: ATW800/2 in a MonSTErbo powered STE
And some progress since my last post...
The original "rabbet" provided with the card fits nicely in the STE (you have to use double sided tape to keep it in place though).
Added a heatsink here, since this chip gets quite hot.
Normal VGA output (Monsterbo at 68020@40 MHz and Monsterbus @40 MHz):
And HDMI output at 800x600@256 colours:
Some artefacts are visible on the menu bar, but I guess it is due to the blitter, which is set to enabled.
I am currently booting from the ATW800/2 ROMs, but booting from the Monsterbo ROMs was not problematic at all.
I have now to fine tune my setup and check the Alt-ram settings (the Alt-ram is now disabled since the HDMI output is garbled when the Alt-ram is on).
More to come...
The original "rabbet" provided with the card fits nicely in the STE (you have to use double sided tape to keep it in place though).
- 1.JPG (354.36 KiB) Viewed 538 times
Added a heatsink here, since this chip gets quite hot.
- 2.JPG (368 KiB) Viewed 538 times
Normal VGA output (Monsterbo at 68020@40 MHz and Monsterbus @40 MHz):
- 3.JPG (278.26 KiB) Viewed 538 times
And HDMI output at 800x600@256 colours:
- 4.JPG (302.08 KiB) Viewed 538 times
Some artefacts are visible on the menu bar, but I guess it is due to the blitter, which is set to enabled.
- 5.JPG (252.32 KiB) Viewed 538 times
I am currently booting from the ATW800/2 ROMs, but booting from the Monsterbo ROMs was not problematic at all.
I have now to fine tune my setup and check the Alt-ram settings (the Alt-ram is now disabled since the HDMI output is garbled when the Alt-ram is on).
More to come...
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HigashiJun
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- Joined: Fri Jun 19, 2020 7:21 am
- Location: Tokyo
Re: ATW800/2 in a MonSTErbo powered STE
OK, Alt-ram issues solved.
The ATW800/2 is set to 2 MB and the Alt-ram on the Monsterbo to 8 MB.
If you set the ATW800/2 to 4 MB, you can only have 2 MB of Alt-ram (more will create conflicts).
The ATW800/2 is set to 2 MB and the Alt-ram on the Monsterbo to 8 MB.
If you set the ATW800/2 to 4 MB, you can only have 2 MB of Alt-ram (more will create conflicts).
Re: ATW800/2 in a MonSTErbo powered STE
@HigashiJun quite the powerful machine now! 
time to try dml's raytracer
time to try dml's raytracer -
HigashiJun
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- Location: Tokyo
Re: ATW800/2 in a MonSTErbo powered STE
Yes, why not...Steve wrote: Sat Jun 20, 2026 8:53 am @HigashiJun quite the powerful machine now!
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rubber_jonnie
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Re: ATW800/2 in a MonSTErbo powered STE
Just looking at the pics and I'm wondering if you'll have space for a couple of TRAMs in there as well?
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
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HigashiJun
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- Location: Tokyo
Re: ATW800/2 in a MonSTErbo powered STE
Yes, still enough room for 2 TRAMs.rubber_jonnie wrote: Sat Jun 20, 2026 9:48 am Just looking at the pics and I'm wondering if you'll have space for a couple of TRAMs in there as well?