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Maxxing a Magma [message #93436] Sat, 08 December 2007 13:51 Go to previous message
DJ is currently offline  DJ   FRANCE
Messages: 1124
Registered: July 2005
Senior Member
I've got two Powercore cards and 4 x UAD-1 cards working in a single 13
slot Magma with the POCO's sharing IRQ 18 and the UAD-1's sharing IRQ 17. My
3 x RME cards are in a second Magma all sharing IRQ 19 so pending a serious
torture test to test the PCI bandwidth, it appears that this may play nice.

I'm using an older gigabyte GA-K8NS Ultrra 939 (AGP based board) and the AGP
is on IRQ 16 so since there is no IRQ sharing, unless my PCI bandwidth is
all used up, I'm not expecting any problems.

I'm currently converting everything I'm working on to 88.2KHz. I don't know
if this is going to end up being a waste of time or not, but I figure, since
I made the decision to move to an 88.2 capable system, I need to start using
it. I've spent quite a bit of time and effort getting all my hardware DSP
processors to function at 88.2 and I wanted to try to offload as much CPU
load to outboard hardware and DSP cards as possible. Since my UAD-1
resources will be cut in half, the extra POCO's will be there to pick up the
slack. I've got a couple of 750GB SATA Barracudas to handle the
recording/playback and backup so here goes.

Upsampling existing projects in Cubase is pretty easy to accomplish and
perhaps the OD's and final DSP processing at 88.2 will add a bit of extra
mojo to the mixes..............before they get hosed by the MP3 codec.

Just in case someone wants to go down this road, the compatibile slots in
the Magma are as follows:

1, 5, 7 and 11 share IRQ 17
2 and 6 share IRQ 18
If you are adding a second Magma, use 1, 5, 7 or 11 for any audio cards or
DSP cards. They will all probably populate IRQ 19, or some other compatible
IRQ that doesn't share with the AGP, or the devices in the other Magma. If
you've got two PCI slots that don't share with the AGP or each other this
should work.

OK....I'm off to give this thing a hard test drive. I'll let you know if
anything catches on fire.

;o)
 
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