Closed MacroSystem Warp Engine with 68060 CPU

[BaudToTheBone]

I opened my a4000 with the same set up and noticed two differences. Your mileage may vary:

Jumpers at the top (L-R) are LKJH and are jumpered. The rest (including A) are not. Yours are slightly different.

The SCSI crystal (left most) on my card has pin 1 (with the black dot) in the lower right position. Yours is upper right. Your card version looks slightly different than mine so upper right could be correct, but if it isn't that would DEFINITELY cause SCSI to not work.

Anyhoo, jumper LKJH first and remove A then and give it a test. That should give you the fastest SCSI.

If your SCSI still doesn't work and the crystal can be pulled out, rotate it 90 degrees.

 

[kalkkuna]

I have this exact card with this exact set up in my Amiga 4000. I can confirm that yes you may run the CPU at 100 mhz (rev 6 only) by adding a 50mhz CPU crystal (replacing the 40mhz) and the SCSI will still work since it takes its timing from the other crystal which reads 50mhz on your board.

I run my warp engine with rev6 060 using the 50mhz SCSI crystal and a 40mhz CPU crystal (which as you mention doubles the CPU speed to 80mhz since it is an 060) which is your exact config listed in this ad. The warp engine is my favourite card of all time and is a lovely addition to any Amiga but you definitely need to figure out why the SCSI isn't working since that's a big big feature of the card.

Thanks for the help. I haven't used the L jumper when testing the Warp Engine so that could well be the reason for SCSI not working.

I'm looking into traveling to see my friend who could test how the jumper settings affect the card and in particular the SCSI port, as I am unable to. This could take a few weeks or more. If someone is willing to buy the card in this partially untested state in the meantime then go ahead. You will have no guarantee of whether the SCSI works or not, but otherwise the card is fully working.

I will report after my travel about the SCSI and the jumper settings.

 

[BaudToTheBone]

I'd be happy to help test this card out for you but unfortunately we are an ocean from one another. I do hope you're able to test and get the SCSI working since without that feature the card's value is deeply compromised.

I would recommend testing it with the jumper settings I mention plus adding in one of those SCSI to SD cards since they have termination built in and generally don't require much work to get going. Zulu SCSI etc. That's what I'm using.

Best of luck Amiga brother/sister.

 

[kalkkuna]

Bump, price change.

 

[Micam]

On picture 3 it looks like the RN5 (might be a resistor network IC) has burned out. It has a brown strain and the IC looks like it has lifted itself off the PCB. This might be why the SCSI is not working, but I am only guessing. For this to happen a large current has gone through it.

 

[moggsie]

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Closed.