--- "J.S. Garrison" <[EMAIL PROTECTED]> wrote: <clip> > The IIsi has my vote, only slightly edging out the > LC III. Why? More RAM. > The LC III tops at ten, the IIsi goes to 33 megs > with two 16's, one meg on board.
You need another cuppa Joe. ;) The IIsi has one meg built in, part of which is used for video RAM. It has four 30 pin SIMM slots and maxes out at 65 megs with four 16meg SIMMs. The IIsi RAM Muncher INIT "munches" any of the first meg not in use by the video to give a bit of a speed boost. Whyfor do that? Because whenever the System or other software accesses the first meg (which is Bank A) the video controller is blocked from accessing it. And when the video is refreshing the screen, the System etc is blocked. The RAM Muncher fills up the "extra" memory so that every time the CPU checks to see if that space needs attention for System or programs, it gets back a "nope" fast as possible and control is passed back to the video. And though the video/memory sharing is similar on the IIci, the RAM Muncher doesn't work, even if you only put one meg in Bank A. > And, with that spiffy angle adapter, you put in the > Daystars I mentioned > for the IIci. 68040/40 or 68030/50. The IIsi needs the special IIsi 030 PowerCache PDS adaptor to use the 030 Power Cache, Turbo 040 or Turbo 601. (If the 601 will even fit the IIsi.) The most common version has two slots, one converts to the IIci type slot for the CPU upgrade and the other is a straight pass through of the IIsi slot so another SE/30 or IIsi PDS card can be installed. ISTR there was a single slot adaptor that only provided a IIci type slot. Daystar also made a short, straight IIsi to IIci slot adaptor that plugged onto the IIsi-SE/30 PDS at the top of many cards. At the time my Universal Powercache manual was printed, the only IIsi card that had to use this adaptor was the Radius Hard Pivot Videocard. This adaptor could also be used with many network cards that had a PDS at the top edge. ===== "You never have to repair or replace what you leave out of the design." William "Bill" Powell Lear, inventor of the 8-Track tape and the Learjet. __________________________________ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/ -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Vintage Macs list info: <http://lowendmac.com/lists/vintagemacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/vintage.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
