Unknown card in PDS slot — #44

Post #44 by Compgeke

Source Forum	68kMLA
Category	Hardware
Post Date	Wed, 10 Jun 2015 - 15:15
Original URL	https://68kmla.org/bb/threads/unknown-card-in-pds-slot.2078/

Post

trag said:
IAs to whether a PDS CPU upgrade **needs** an extension/control panel or not, I had a conversation in which I was told that one of the early daughter board upgrades on the 128K/512K used some trick in bus arbitration to shut down the host CPU, but in that case, the upgrade has full access to all of the original CPU's pins. So I could go either way. Sure seems like the Turbo040 and such are active whether you load Daystar's software or not, but my memories are old and crumbly.

Trash80toHP_Mini said:
Daystar's Universal PowerCache Install Manual says you've gotta install Power Central in the System Folder. Dunno, I've used several PDS Accelerators and Cache Cards from the 68000 on and all needed an INIT to shut down the native proc. to work. 2x CPU active on one I/O bus = BAD Juju, but this Card is definitely an odd duck.

On my SE Sytem Profiler detects the CPU part of the Hypercharger 020 PDS upgrade fine, no extension needed. If I were the op I'd try and find something that can detect the speed of the processor and run that, see if maybe the card does run extensionless.

Failing that something which lists devices on the PDS would work.