Inmy machine, at least, even the VGA-only Radeon would only operate in the top two slots, though I have heard of the Acards doing fine in the lower slots. Sonnets, as aforementioned, tend to use the FirmTek chipset... which I think I also mentioned misbehaves in my Gigabit Ethernet G4.
I'mnot certain of why exactly Umax usaed the bridge chip, but the reason I gave echoes their own... but who's to say. Propaganda? Maybe. It wouldn't surprise me. -Antonio On 8/18/05, Jeff Walther <[EMAIL PROTECTED]> wrote: > At 12:53 -0700 08/18/2005, Tony Michaels wrote: > > >Basically, ATA 100 and ATA 133 cards should go in one of the first two > >slots, as should graphics cards... there are exceptions, > > Acard ATA100 and 133 cards work fine in the lower slots. There have > not been issues with the Acards. It's the Sonnets that cause > problems. > > Single function video cards also tend to work fine in the lower > slots. It's the dual output and capture cards that have problems in > the lower slots. > > >As for the bridge chip... the thought was to enable cards ont he PCI > >bus to communicate directly with each other, leaving the rest of the > >system's resources free to do other things. > > It may also have had something to do with the fact that Umax could > buy the parts from Apple for a three PCI slot machine and then sell a > six slot machine. > > I'm not sure if the licensing addressed this. Depending on the terms > of the contract between Apple and Umax this may not have been an > advantage. But it may have been an advantage. It could have worked > out such that Apple contracted to sell components for what it thought > were three slot machines and Umax built four and six slot machines. > > Also Umax could build a six slot machine using two fewer custom Apple > ASICs by this method. > > Jeff Walther > > -- > 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/> > > > --------------------------------------------------------------- > iPod Accessories for Less > at 1-800-iPOD.COM > Fast Delivery, Low Price, Good Deal > www.1800ipod.com > --------------------------------------------------------------- > > -- 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/> --------------------------------------------------------------- iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com ---------------------------------------------------------------
