Warpengine 4040 in a 3000D

[chfriend]

I have one bank of static column zip's, but it's setup to run in page mode since the other two banks are page mode (Bank 0 & 1 are page, bank 2 is SC).  I'm assuming that problem only crops up if Ramsey is in static column mode.

[Zac67]

Static column RAM/mode is for '030 burst mode only, the '040 bursts differently and SC mode will be disabled (=there is no difference between SC and FP RAM for '040+).

AFAIR, there's a problem with an '060 and SC RAM with Kick 2.0 (it fails to deactivate SC mode) but you can easily sabotage SC mode by swapping in a single FP chip into the first bank (Kickstart just tests the first bank only).

Leaving the slow mobo RAM in doesn't hurt because the faster accelerator RAM gets higher priority and is always allocated first. Only when it's depleted mobo RAM will get used.

[mechy]

Zac, i could be wrong on this  but if memory serves it was the DMAC2 chip that had the problem deactivating sc mode when using a 040 and why you needed fast page in bank one. i didn't think kick 2.0 had anything to do with this(but i could be wrong).. The dmac4 fixed this problem and autosensed 030 or 040 and set the ram up accordingly.

Mech

[magnetic]

The dmac4 fixed this problem and autosensed 030 or 040 and set the ram up accordingly.

Mech

Man good luck finding that chip and iirc you cant just change the dmac you have to upgrade Ramsey as well at the same time..

[matt3k]

Very true, you do need to upgrade to dmac 04 from 02 and to ramsey 07 from 04.  As Magnetic said, they are extremely rare and will very likely cost more then a used 3000 itself.  

I saw a one of these a while ago and they were asking over 200USD and you still need the companion chip to make it work.

Wish they could be produced again.  Most 3000's out there don't have them.

[Zac67]

Zac, i could be wrong on this  but if memory serves it was the DMAC2 chip that had the problem deactivating sc mode when using a 040 and why you needed fast page in bank one.

Hmm... I think I recall seeing Ramsey setup code in Kickstart's bonus area - but I may be misremembering (we're all older now). Don't think DMAC has anything to do with it, but a newer Ramsey calls for a DMAC 4 anyway.