----- Original Message ----- From: "Jeff Walther" <[EMAIL PROTECTED]> To: "Vintage Macs" <[email protected]> Sent: Saturday, December 10, 2005 2:20 AM Subject: Re: On MIDI Sequencing - IIci performance enhancements
> Daystar also made the Turbo040 accelerator based on the 68040 CPU. > This came in the 25MHz, 33MHz and 40 MHz versions. All of these > provide a nice boost to the IIci. There are two versions of the > Turbo040 card. The newer version has the 128K L2 cache soldered on > the card. The original version has a connector on the back for the > optional "Fast Cache" 128K L2 cache board. You can distinguish the > two, because the older one has a long thin black socket on the back > of the card near the top edge for the cache board adn the newer > version lacks teh socket (no need with the cache soldered down). > Also, the newer version has a large chip (~1" square) on the front of > the board next to the 68040 while the older version consists of a > bunch of smaller chips. > > If you buy one of the older version, check to see if the cache board > is attached and included. Often it is, and often the seller has no > idea what the piggybacking board is doing on the back of the thing. > > The older version with the cache board attached will be two boards > sandwiched together pretty closely when viewed from above. > > All of the Turbo040s that I have had could be clocked up to 40 MHz > without issues even if they were originally the 25 MHz version. > However, if you replace a 68LC040 chip (no FPU) with a full 68040 > (has FPU) chip, there is a firmware version change required. > > Daystar sold versions of all the Turbo040 which had the FPU > "Turbo040" or lacked the FPU "Turbo040i". > > Jeff Walther I have the older Turbo 040 (33Mhz no cache add-on), how rare are the cache boards for these currently? -- 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/> iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com
