(I'm folding many replies into one for the sake of mailing list etiquette) On Sun, Oct 2, 2011 at 8:29 PM, JDW <[email protected]> wrote:
> JAS, I can't help with your IIx/IIcx request, but here is what the > Daystar PDS Adapter looks like: > http://www.flickr.com/photos/66071596@N00/2406671347/ > http://www.flickr.com/photos/gary_w/3373765822/sizes/l/ > > --James Wages Thanks JW, it's useful to have those for reference. The difficulty reproducing that PDS adapter has to do with that long chip on the right. It's a custom programmable logic array, which frankly is beyond my means. On Sun, Oct 2, 2011 at 9:15 PM, TT <[email protected]> wrote: > > JAS, interesting project you are proposing here. How would you propose > attaching a Universal PowerCache or Turbo040 card to the socketed adapter? > Some kind of cable harness? > > One thought I have is to reverse engineer the SE/30 030 PowerCache board > and use a Universal PowerCache to donate all the proprietary chips from it. > Maybe an 040 version could be made as well. The main problem is those > boards have many components and are multi-layered. > I have hardware that can replace the hard drive with a small SCSI to CF card board, which frees up some space. So the plan is to mount the accelerator where the hard drive used to be, and connect it via heavy gage wire to the CPU socket using a male DIN connector, an extra 68030 socket, and a bundle of ~110 carefully soldered wires. Normally moving the CPU so far from the motherboard would be a problem, but use of somewhat heavy wire should help with that. While a power cache could be rearranged onto a board that fits the 68030 socket (all the pictures of these rare devices I've seen have seemed to be just that) it would be some very tricky soldering work and the new multi-layer PCB isn't something you could make at home (well maybe you could, but not me). On Sun, Oct 2, 2011 at 10:27 PM, James Wages <[email protected]> wrote: > ARTMIX Japan (Manabu Sakai) reverse engineered the Daystar design several > years ago and came out with his own product, the TS Adapter: > http://www.flickr.com/search/?w=66071596%40N00&q=twin+spark&m=text > > I paid a pretty penny for it, but it works well to not only allow you to > install an accelerator, but it also provides a pass-thru slot too. > Something to consider if you are serious about creating your own design. > That's a very nice item to have your hands on. Unfortunately AFAIK they've been sold out for years. I have to envy yours. Making one of those involves creating the programmable logic array, which is a significant barrier for a connect-the-dots american like myself. On Sun, Oct 2, 2011 at 11:46 PM, Gregg Eshelman <[email protected]> wrote: > The IIsi adapter might also be of some help, since that Mac has the same > PDS as the SE/30. For the IIsi adapters with two slots, the Daystar ones > have one IIci type usually labeled for cache card and the other slot is a > straight passthrough from the mainboard. > > Daystar also made a "stubby' adapter for any IIsi or SE/30 card that didn't > work connected to the upper adapter slot. AFAIK only one video card was that > picky *and* had a passthrough PDS to use the stubby adapter to plug in one > of the IIci CPU cards. A IISI adapter would be quite nice, but the only way to find one is to buy IISIs in bulk on ebay and hope one of them has it. These items just aren't changing hands anymore. -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/
