Could somone help me identify these boards? (Large Images)

Hi folks.

I'm trying to figure out some of the hardware that showed up inside of this abandoned cube I've adopted.  I appears to be 2 logic boards, 1 year apart.

The system booted, albiet in a somewhat bizzaro fashion.  By plugging the monitor/keyboards into one mainboard, I could boot the system, I then had to swap the cable over to the other board to get an image on the monitor.

The machine ran for about 5 minutes before a pop was heard and thick black smoke filled the house.  Smoke poured out of the DPS1202G voltage reducer.  I'll need to find another.  :oops:

Any help with letting me know what these are?







ps.

I also have what appears to be an original nextstation. The monitor cable I have that plugs into the cube won't plug into the station.  Are there any adapters out there for a monoslab?

Thanks!

You've got 68040 25mhz and a TurboCube, 68040 33mhz.

That Turbo board has some nasty damage to the DC-DC converter.

Quote from: "barcher174"That Turbo board has some nasty damage to the DC-DC converter.

It certainly does, I was surprised to find a supplier (from honk kong, naturally) who has NOS of these converters.  He has 34 of them with a 1991 date code. It's on the way, as are replacement caps.

the exact same thing happened on one of my turbos. replaced the DC-DC and the nearby capacitor: everything's okay again. BTW: the board was still working with the blown DC-DC, except for the ethernet which was dead.

By sound of it your Cube is set up to boot multiple system boards (a rare, "homemade" modification). Some would probably like pictures of the backplane inside the Cube, there was much speculation on UseNet that you could make this work but few dared to try on this most precious hardware. Once you've fixed the Turbo board you could try netbooting the non-Turbo off the Turbo, and vice-versa.

I'm pretty sure that one of my cubes has a modified backplane (but I never tried to boot it with more than one main logic board installed).

Quote from: "Noth"By sound of it your Cube is set up to boot multiple system boards (a rare, "homemade" modification). Some would probably like pictures of the backplane inside the Cube, there was much speculation on UseNet that you could make this work but few dared to try on this most precious hardware. Once you've fixed the Turbo board you could try netbooting the non-Turbo off the Turbo, and vice-versa.

Happy to oblige, it certainly doesn't look modified.

Thanks nextse7en,  I can't see any mods on there... weird. The relevants posts are here : https://groups.google.com/forum/?fromgroups#!searchin/comp.sys.next.sysadmin/dual$20board/comp.sys.next.sysadmin/nTTS_JlC9Fs/XS2mkbPNxtIJ

Good news, the new DPS1202g went in just fine.  I also cleaned up the board and installed new caps near the effected site.



It took a bit of work getting it shipped to the US.