Recent content by StormyNormy

Wish you all the best. Hope everything will work out for you.

Where is the supercap located? The mobo has a sticker stating "danger of explosion if the battery is replaced incorrectly". What can explode? TiA

Love the Mr.Driller2 and HNG64.

Wish you the best of luck with your business plan. Hope everything will work out for the way you planned it!

There are many matching replacements for the transceiver; just slightly different part numbers. Anything in particular to pay attention too?

@'chacal231077' 74LCX16245MTD-ND is the DigiKey part number, right? Seems like I got 'till Feb 2023 to hone my SMD soldering skills. Any recommendations on the kind of soldering needles best suited to do that kind of work. TIA

Got a new SCSI cable; old one wasn't the problem. Any ideas on how I can test my Dimm board? Any pics of where to find the buffer chip that causes the board timeout? Thanks

I'm not using CF cards ATM; thanks for your answer. I had checked with BIOS list on Sega-Naomi and GD-ROM for Naomi 1 seems to be only supported for BIOSes higher than 21576E, but was wondering if a certain DIMM board firmware version required a particular BIOS version. Anyways, I found I had...

Hi all, Can I use any SCSI cable to connect the DIMM board with the GD-Rom drive or is the wiring for the Naomi special? Are there any known compatibility issues between Naomi BIOS and DIMM firmware version (e.g. BIOS ver. X does not work with DIMM fw. ver. Y)? Thanks.

After a good week of research of what could be the problem and what to try out, I measured the voltage of the setup under load. To do that, I had to remove the cover from the mobo and dimm board. To my surprise everything operated without any problems (yes, really). I put the Naomi 2 back in its...

Hi, my Naomi 2 with GD-Rom setup is giving me headaches. Used to work but it now freezes on boot, or boots into "System initializing" (not memory check) and freezes or gives me straight up a error 22 message ("Communication error occurred between main board and option board"). I think I can hear...

Thanks guys!:)

Hi everyone, I'm Norman, live in the south of Germany and have been into arcade for a while. Since recently I'm also a proud owner of a Naomi Universal cab with a Naomi 2. I'm eager to learn about all kinds of technical aspects of arcade tech/devices as much as I can and also hope to add more...