MC68EC030 with functional MMU???

[mingle]

Hi,

Can anyone tell me if it's possible for an EC 68030 to have a fully functional MMU?

I'm getting conflicting reports from SYSINFO and SYSPEED...

Does anyone know what I can try to tell me once and for all if the MMU is actually active and working?

Cheers,

Mike.

[xeron]

Generally EC030 and full 030 chips rolled off the same production lines, but the EC030 failed the MMU tests, so they physically have an MMU on board, which might or might not work to some degree, but not enough that Motorolla would claim it had a working one.

[Argus]

I bought an Apollo/Winner MarkIII 68030 board which was clocked at 40MHz, unfortunately, the PLCC package chip soldered to the board was only a 16MHz chip so it overheated it about 10 minutes or less and caused all kinds of colorful error screens and gurus.  Fortunately, Apollo saw fit to also put in the holes on the PCB for a PGA 68030.  So I cut out the PLCC 68030, bought a cheap solder remover from Radio Shack, cleaned out the holes, and soldered in a PGA socket for a 68030.  Trouble is I didn't have any 68030 chips lying around other than a plastic PGA 68EC030 that I took off a GVP Combo board a while back.  Well, just for kicks I put it in the new cpu socket and not only found the board worked perfect now with no crashes or overheating, but, also found the el cheapo plastic 68EC030 has a fully functioning (as far as I can tell) MMU.  This is important because the Apollo board has no built-in kickstart remapping circuitry like the GVP cards so I use a CPU FASTROM command to remap kickstart.

[Zac67]

Probably due to demand of cheap EC030s and good yield, Motorola might have also binned fully functional, but possibly MMU-untested 030s as EC - there's only one way to find out if a detected MMU is functional.  ;-)

[mingle]

@Zac67,

Please spill the beans - how do I confirm a fully working MMU? :-)

Which apps will only run with an MMU?

Cheers,

Mike.

[meega]

http://aminet.net/package/util/moni/CheckMMU