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FYI IRQ Allocation 13-Slot Magma Chassis and Asus A8V Deluxe

winnie_pooh

winnie_pooh

Member
Got a DIGIDESIGN PROTOOLS MH413 13-SLOT PCI EXPANSION with original Magma 13-slot PCI chassis through ebay and would like to share my experience.

Magma host adapter card is installed into PCI slot 4 of the A8V Deluxe. I’m getting the following IRQ allocation (slot numbering printed on the board starting from the left side if you look at the front of the chassis):

13-Slot Magma chassis:
Slot 10 | IRQ 17 | PCI-Lat 96 | FW800 card | RME Fireface800
Slot 09 | IRQ 16 | empty
Slot 08 | IRQ 19 | PCI-Lat 64 | UAD-1
Slot 07 | IRQ 18 | PCI-Lat 255 | RME HDSP Multiface
Slot 06 | IRQ 17 | empty
Slot 05 | IRQ 16 | empty
Slot 04 | IRQ 19 | PCI-Lat 64 | UAD-1
Slot 09 | IRQ 16 | empty
Slot 08 | IRQ 19 | PCI-Lat 64 | UAD-1
Slot 07 | IRQ 18 | PCI-Lat 255 | RME HDSP Digiface
Slot 06 | IRQ 17 | empty
Slot 05 | IRQ 16 | PCI-Lat 32 | SB5.1 live
Slot 04 | IRQ 19 | PCI-Lat 64 | UAD-1
Magma Chassis Adapter Card
PSU

Asus A8V Deluxe:
AGP-Slot | IRQ 16 | PCI-Lat 32 | Matrox P750
Slot 04 | no IRQ allocation | PCI-Lat 32 | Magma Host Adapter Card

IRQ 18, 19 is not shared. IRQ 16 is shared with AGP slot and onboard Via FW400, IRQ 17 is shared with the onboard Marvell Yukon NIC.

No crackling or other strange issues so far. UAD-1 CPU load possible on all four cards up to 95-97% depending on the plugins using RME HDSP cards. I haven’t experimented with the RME Fireface 800 and the UAD-1 because I use it only as a remote controlled AD/DA converter. Installation under WinXP SP2 without problems – no additional drivers required.

Magma chassis = fine piece of gear. :D
 
S

Steve Oxford

Member
I find this very intersting and TIMELY as I bought a 7 slot chassis yesterday and it should be here by the end of the week!! The only cards (at this point) that wil go in the Magma aside from the host will be the 4 UAD's.. Looks like I'll be able to free up all IRQ conflicts/sharing (with the exception of all the UAD's sharing) and have one 'extra' unused IRQ and three free slots in the host PC! And two empty in the Magma! Sweet!

Thanks for sharing!!

SO
 
A

Akis

Sadly, left this world before his time.
Moderator
Steve Oxford said:
I find this very intersting and TIMELY as I bought a 7 slot chassis yesterday and it should be here by the end of the week!! The only cards (at this point) that wil go in the Magma aside from the host will be the 4 UAD's.. Looks like I'll be able to free up all IRQ conflicts/sharing (with the exception of all the UAD's sharing) and have one 'extra' unused IRQ and three free slots in the host PC! And two empty in the Magma! Sweet!

Thanks for sharing!!

SO
Click to expand...
You'll have 3 free slots in the Magma: the 7-slot one has 8, but one is reserved for the host card. :wink:

2 weeks ago I bought an Avid branded, 7-slot Magma chassis and worked perfectly from the moment I plugged it in! :D
 
S

Steve Oxford

Member
Ah Ha!! Brilliant, Akis!! :D I am so happy to hear you've had good luck too!

(daydreaming a possible raise in the current 4 card limit and 3 empty slots... \" a UAD only chassis... 7 UAD's.. ) :D :wink: :D
 
S

Steve Oxford

Member
Akis - Winnie Pooh,

Since you two have recently blazed the trail, did you put all your UAD's in the expansion chassis at one time, then boot up or, did you install them one at a time?

SO
 
A

Akis

Sadly, left this world before his time.
Moderator
Yes, I just chucked all my cards (2xUAD-1 - 2xPowercore) in the Magma, powered it up, powered up the DAW and installed the drivers - worked like a charm!. I didn't even have to fiddle with slot positions - I only placed the cards in a configuration that I thought was the best for temperature issues and it worked. FWIW, here's my configuration:

Slot 0 - Magma card
Slot 1 - empty
Slot 2 - UAD-1
Slot 3 - empty
Slot 4 - UAD-1
Slot 5 - empty
Slot 6 - Powercore PCI mkII
Slot 7 - Powercore PCI Classic

With the ASUS A8V Deluxe, it worked just as it worked with the cards straight on the mobo (still had the Powercore freezes). With the MSI K8N Neo2 Platinum, everything works perfectly. With both mobo's, I had the Magma cards on slot 2 and RME HDSP Multiface PCI card on slot 4.
 
S

Steve Oxford

Member
Fantastic - Thanks Akis!! The Powercore's live happily with the UAD's too? That's great! Thanks again!!

Steve
 
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