Peter, I'm not sure if any work has been done with SMP on the DP s900. You may want to check up on this rather than be disappointed if things don't work out the way you planned. I am not sure if the DP extension loaded when booting MacOS with MOL will make a difference for MacOS programs, but afaik there is not native support for the second processor with Linux kernel.
Jess -----Original Message----- From: Peter [mailto:[EMAIL PROTECTED]] Sent: Sunday, September 29, 2002 9:31 AM To: [EMAIL PROTECTED] Subject: [SM] Dual processor S900 challenge - HELP! Since I am not too much bothered about getting OS X working just for the sake of it, I am considering giving my S900 (well, Pulsar in Europe) a second life just like I did for my 840AV, by installing Debian GNU/Linux PPC with MOL (running Macintosh applications at native speed). However, this time I would like to exploit the dual processor capabilities of the S900 and use an SMP compiled Linux kernel (2.4) The hardware ingredients are: 1. a Umax primary processor card 604e/233 2. a Umax primary processor card 604e/200 I am aware of the fact that Umax had a proprietary secondary processor card dedicated to fit in the ASPD slot (secondary CPU slot). However, from my experience with other multiprocessing systems I don't expect much of a difference between the primary and secondary CPU card. Well, the heat sink will definitely be different ; ) Therefore it should be possible to get a primary processor card working in the second CPU slot and I believe it is feasible to give it a try. Unfortunately, I cannot find any tech specs about the original Umax secondary processor card. I only know that the jumper settings on the secondary card differ from the primary card and it seems a small flatcable is bridging the primary and secondary card. I can only guess what the purpose of this cable is. That's all I know so far. I am also aware of the fact that I will have to sacrifice a bit in regards to the cpu/bus ratio because of the difference in clock speed between both processor cards (i.e. 200 and 233MHz) Is there anyone out there who owns an S900DP with a secondary CPU installed? What I would like two know is the jumper settings of this card.how the flat cable is connected (if any) and how the narrow space for a heat sink has been solved. I wonder if someone has tried (successfully?) the same in the past of what I would like to achieve. Any help is much appreciated! Cheers, Peter -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.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/supermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
