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I took 2 AA batteries and soldered one of these holders to the outside of the clamps of the original holder: https://www.amazon.com/-/de/dp/B07TB4HDYH/ref=zg_bs_18007817011_13 Fixed the new holder somewhere inside the SE with a strap.

I sadly have to report, that the 32 bit clean rom did not solve my problem of a freezing mouse cursor with a radius pivot SE/30 grayscale and more than 8 MB RAM. If the 2nd (pivot) screen is the main dektop I lose the cursor right after startup. With the SE/30 crt as the main screen it usually...

Thanks cheesestraws, will do and then get back here to report, if this solves the paralyzed mouse cursor issue. I think it will take 2-3 weeks for the rom to ship from the US, it took at least that long for the 16 MB ram simms.

Many thanks to both of you! I just ordered the systen ROM simm @BadGoldEagle recommended. Maybe you can give me a hint reg the small hack to some system files sometime or maybe this is described in the shipment.

It is this Radius Pivot SE/30 Display with upgraded VRAM (not on the pic).

Come on guys, this radius pivot setup with red and green connected to the blue line in order to get a greyscale picture on a vga TFT display is just a copy cat of numerous simliar configurations others posted here previously like @Bolleor @BadGoldEagle. None of you ever booted up his Mac with...

Remember the wobbling ram simms I recommended from here: https://www.amazon.com/-/de/gp/product/B00FAYV3NO Gary, the dealer behind the account named mally, sent me 3 replacements, all wobblers, too. By then he had realized, that the boards were not thick enough, and made his supplier produce...

So I installed 68 MB (4x16 and 4x1) on my SE/30 with the Radius Pivot 4bit grayscale and now I loose the mouse cursor movement (click still possible), if enable 32 bit RAM access in the Mode 32 extension. Without the 2nd display connected everything works fine. The machine works also fine, if I...

No, sorry, I could not solve it because the next day my drive was dead again, most likely because the heads were magnetically „glued“ to the disk and the motor is to weak to spin the drive up. There is no practical fix for this I guess. 

If you look at this post of bigmessowires‘ and his following one in the same thread, you will find that he was stuck with the 1152 resolution at a time and finally solved this with a) the right drivers and b) grounding the right sense pins of his card. So I thought the same should be possible...

Well, I think the original resolution of the radius pivot SE 30 grayscale is 640x864/864x640. The Eizo Flexscan L885 in the pic has a native resolution of 1600x1200 px.

But no matter which dip switches I choose on my vga adapter, I always end up with a resolution of 1152x864 like Bolle. Is that due to a lack of radius drivers or a problem with the vga adapter? 

Thank you so much for digging out that old thread! Will browse/read through it more thoroughly in the next couple of days. From what I have read so far I understand that ar least some radius software is needed in order to leave the 1152x640 resolution and get 640x864 or 864x640. Do you have an...

Last night I tested connecting sense0 and sense1 (pin 4 and 7) with no effect at all. So can we conclude, that only connected to an original Radius pivot monitor the monitor can do it's magic during rotation on some sense lines on the card (which we do not know) and there is no way, to simulate...

If this (above) is the pivot SE 30 pinout, then l connecting 4 + 10 like with the Pivot IIsi (below, quoted from the above mentioned WTB: Radius Pivot IIsi cable thread) is obviously nonsense, since with the Radius pivot SE 30 only 4 is sense and 10 is 69hz vsync. But what if I were to...

Forgot two things to mention: That looks absolutely great, Thanks ,Trash80toHP_Mini, for the Scaler Pics! And I did like JT737 did and bought 2 Micron VRAM chips on ebay.de for 6€ (+1,10€ delivery!) and now I enjoy luxurious 4 bit gray scale, an update that Radius charged 150$ for back in those...

Guys, it must be possible to convince the Pivot SE/30 Card, that it is connected to a landscape radius pivot monitor at boot time, i.e. displaying something like 864x640 on VGA. I found these two thread with a Radius Pivot IIsi card, indicating, that connecting pins 4 and 10 on the pivot side...

So I did and it worked.  :b&w:

I found another pic of JT737's card on the bay and a pinout of a female db-15 connector. From these two and 9166188's table above  I gather, that I have to solder red and green to pin 2 and 5 of the db-15 connector, right?

So in this thread I found a pic provided by 9166188 of the pin situation between DB15 and VGA pinout Bolle described the pinout of the 12 pins on the Radius card and JT737 seems to have connected the missing green and red lines on the card to the female DB 15 on the Radius clamp. But to...