>Date: Wed, 02 Oct 2002 08:23:12 +0200 >From: Christophe Collot <[EMAIL PROTECTED]> > >> Two SCSI cards for high performance RAID, two video cards for dual >> monitors, FW/USB, Wired4DVD and I'm still a card short for ATA >> support. Of course, I could buy a video card that has two heads or >> get the Sonnet Trio. But the point is, it's easy to fill six slots >> and still want more.
>Don't hesitate, use a Magma PCI expansion chassis !! > Ignoring the practical issue of expense and heading straight for the technical... Can you confirm that the Magma actually works with the 9500 or 9600? If so, what size of chassis? Based on my experiences with the Umax S900 and its PPB (which is the same chip that allows the Magma to expand PCI) I believe there is a flaw in PowerSurge ROM which does not properly support PCI-PCI Bridge chips on the PCI bus. Specifically, it will support a single PPB such as will be found on a FW/USB or dual channel SCSI card, but if you try to build a hierarchy (daisy-chain) of PPBs the host machine freezes during PCI initialization under most circumstances, i.e. a grey screen freeze. There are a few exceptions involving installing only one PCI card or using only PCI cards without on-board drivers such as ethernet and USB cards. However, I'm not 100% certain I have the underlying cause nailed. Some experimentation with a 7 slot or greater Magma would go a long way to identifying the nature and extent of the problem. Jeff Walther -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.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/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
