What do you actually need a Super-DMAC-04 for?

[qq1975b]

Moved this discussion to its own thread, so as not to clog up someone's FS thread. --AndyLandy

Still looking for Super DMAC rev 04.

Just for completeness? Or because you want to do something specific with an A3000?

If it's the latter, you may well find you don't need a DMAC-4 at all. There are lots of rumours about needing to upgrade DMAC and RAMSEY in the A3000 to make it work with certain hardware, most of these rumours aren't true.

Hi,

And what is true about the DMAC-04 upgrade needed, please?

For what is this upgrade needed? If you use an A3000 withe A3640 3.2, IDE board (Buddha or Elbox) and Zorram or similar (Z3 fastlane,etc...)...?

DMAC02+Ramsey-04 would be ok? and DMAC02+Ramsey-07 can work well together and with the above hardware config?
Or DMAC04+ Ramsey-07 needed?

I have read about the DMAC-04 and Ramsey-07 and is not very clear...Some people say that their stock A3000 DMAC02+RAMSEY04 are working fine with A3640 and ZIII cards...

Ramsey is possible to get...but DMAC04.......

thanks.

 

[AndyLandy]

I can't say for sure, but I do know that I have an A3000 at home with DMAC-02 and RAMSEY-04. It's got an A3640 r3.2 in it and it used to have a FastLane Z3. Never had a single problem with either of them.

 

[rkauer]

You can't make a Ramsey7 work with DMAC2, they are used as a set.

I concur with Andy on the matter: DMAC4+Ramsey7 are only necessary with A3640 3.0 (why one will put this model inside a A3000?), GVP Phonepack and Zorro3 boards, when using kickstart 2.04.

For all normal uses with a 3.2 A3640 and kick 3.1 you don't need to worry about those chips.

 

[hese]

You can't make a Ramsey7 work with DMAC2, they are used as a set.

That's just another rumour. Mine's running just fine with DMAC-02 and Ramsey-07.

 

[AndyLandy]

You can't make a Ramsey7 work with DMAC2, they are used as a set.

That's just another rumour. Mine's running just fine with DMAC-02 and Ramsey-07.

Really? That's cool! I love it when silly myths and rumours are put to bed like this!

 

[Merlin]

You need one because you are sooo worth it.

[/Cheryl Cole]

 

[BlindGerMan]

You can't make a Ramsey7 work with DMAC2, they are used as a set.

That's just another rumour. Mine's running just fine with DMAC-02 and Ramsey-07.

That's right, in one of my A3000, both Ramsey 7 and DMAC 2 are perfect working together with a Fastpane Z3!

 

[rkauer]

Very good to know!

Seems like the same as when I upgraded my A2000 to OS3.9 using the IDE version of GVP Impact A3001 with RAM8.

Someone told me that with the A3001 OS3.9 is not possible to install.

Hell! No one told me before!

 

[qq1975b]

I was going to say to move this part of the thread to AmiOracle section...AndLandy thought it faster than me

About this myth...Maybe we can run some tests on our machines to see if there is any issue. But I don't know what kind of tests can be run to see if something crashes. . Those that need 040 CPU and/or ZIII cards ( memory, graphic cards,...)? Demos for 040 maybe?

I have an A3000 with 2MB chip+16MB fast+A3640 3.2. I can add a Fastlane Z3, a FastATA 4000 and a Cybervision 64/3D to see if something goes wrong. Maybe we need to run tests on different DMAC+Ramsey combinations:
DMAC 02-Ramsey04
DMAC 02-Ramsey07
DMAC 04-Ramsey07 (If someone has one...I had one but it is gone...better no to think about it because I get angry... :x...sent to repair and the guy disappeared with it oh:)

My actual A3000 has DMAC 02 and Ramsey 04 (but I can replace the Ramsey for the 07 version if needed).

What do you think? Is it worth it? Tests to run? which machines?

 

[AndyLandy]

My actual A3000 has DMAC 02 and Ramsey 04 (but I can replace the Ramsey for the 07 version if needed).

What do you think? Is it worth it? Tests to run? which machines?

It sounds like it might be worth a try! I wonder if it's worth me searching a Ramsey-07 for my own A3000...

I also wonder what happens if you run DMAC-04 and Ramsey-04 together!

For SCIENCE!

 

[qq1975b]

Cool! we need to determine machines to test and which tests (I do not have any idea which ones would be interesting to run and that can cause to fail the system if it is a bug).

First, I think is better to determine the tests: which software we are going to run....some that can cause the A3000D to fail due to a DMAC and RAMSEY combination/versions.

Later will determine about the machines to run them on and see results.

Does that sound ok?


So...which tests?

 

[hese]

I also wonder what happens if you run DMAC-04 and Ramsey-04 together!

That combination works too. I tried them today by booting to Workbench and running some benchmarks. Everything seemed to be okay.

I haven't done any exhaustive tests but I can say that the following combinations do work:
DMAC-02 + Ramsey-04
DMAC-02 + Ramsey-07
DMAC-04 + Ramsey-04
DMAC-04 + Ramsey-07

 

[qq1975b]

I also wonder what happens if you run DMAC-04 and Ramsey-04 together!

That combination works too. I tried them today by booting to Workbench and running some benchmarks. Everything seemed to be okay.

I haven't done any exhaustive tests but I can say that the following combinations do work:
DMAC-02 + Ramsey-04
DMAC-02 + Ramsey-07
DMAC-04 + Ramsey-04
DMAC-04 + Ramsey-07

Which hardware and tests done, please?

 

[hese]

I also wonder what happens if you run DMAC-04 and Ramsey-04 together!

That combination works too. I tried them today by booting to Workbench and running some benchmarks. Everything seemed to be okay.

I haven't done any exhaustive tests but I can say that the following combinations do work:
DMAC-02 + Ramsey-04
DMAC-02 + Ramsey-07
DMAC-04 + Ramsey-04
DMAC-04 + Ramsey-07

Which hardware and tests done, please?

A3000 with onboard 68030@25 CPU and some Zorro cards attached.
Did the basic benchmarks and tests everybody seems to run: SysInfo, AIBB, WhichAmiga and ShowConfig.

 

[qq1975b]

I think a 3640 card is needed to see if there is any problem with the DMAC+RAMSEY combination.

I don't know if there is any specific kind of software that is more vulnerable to DMAC+RAMSEY combination too...

 

[AndyLandy]

My (somewhat limited) understanding of the situation is that if you had a DMAC/Ramsay mismatch, the machine would simply not boot. So, if you've got as far as loading Workbench, it's pretty safe to say the combination works.

There may be issues with running r3.0 A3640s with DMAC-02/Ramsey-04, but it's both better and cheaper to upgrade the A3640 to r3.2 instead.

 

[wbochar]

I know this is an Older thread. But I have some additional Info.
I have an A3000 that had a SuperDMAC 02, with an upgraded Ramsey 07. It would boot, install OS run for brief periods of time and then a mix of memory errors and other things would crop up. There were modern cards installed, but even after going to the most basic system I found that most of the crashes were tied to RAM (Static/Column Modes) and that chip combo. Changing the RAM type to the slower version cut down on the errors. But going to the DM02/RM04 combo killed the problems all together.
After putting the rest of the cards back in, things were still 100% rock solid.
I'm sure that older OS versions might not pick up the flaws as much, but the newer Kickstart/OS's definitely do. I have a site that I kept all my upgrade notes: http://www.wbochar.com/?p=315 / http://www.wbochar.com

 

[qq1975b]

Very interesting. Thank you for sharing.