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Check this out.. no need for a Magma..! :D

imdrecordings

Venerated Member

Paul Woodlock

Established Member
It's just a riser card for low profile cases ( racks )

I suppose if you're short of PCI slots and have enough physical room - PCI slot is the last slot and nothg populates the other slots it could work.

:? :? 8)
 

imdrecordings

Venerated Member
So how do these things work? Do you just plug the cable into 1 PCI slot and are able to plug 3 PCI devices into it? Or do you have to plug 3 cables into your Mobo, allowing you to switch the position of the cards? What are the thin cables for?
Anyone?
 

jrankin

Member
The information in the link above gives a fairly good explanation. Those flying cables you see are to plug into other PCI slots to pick up the interrupt signals properly for three slots. To \"convert\" one slot to multiple slots expansion you need to have a full bridge and that is what Magma, SBS etc. do for you. There are apparently some hybrid cards out there that try to perform some tricks with interrupts but I don't know if they would work - I would doubt it as we would have heard from others that they do by now. I suppose someone could arrange to borrow one of the active cards from TMC to see if it would work. Also, I would suspect that on most motherboards it would be hard to get the physica layout to work.

There are some interesting expansion chassis products beginning to emerge which have both PCI and PCIe bridging and switching expansion on the same board. As ever, because they are generally for a small specialist market, these things are expensive. If UA go down the path of a PCIe UAD 2 product I hope we can mix UAD1 and UAD2 in products such as these and UA do a deal with a manufacturer to provide these things at a good price.
 

imdrecordings

Venerated Member
jrankin said:
The information in the link above gives a fairly good explanation. Those flying cables you see are to plug into other PCI slots to pick up the interrupt signals properly for three slots.
Why would that matter if you had all of the UADs on the same IRQ, coming from one slot, like UA recommends? Just don't hook up those wires, if that's all they do.
Looks like the active one would work. No?
 

Eric Dahlberg

Purveyor of musical dreams fullfilled.
Scott, I've got a 2U rack case here that you can try out if you want. It uses the same riser card system so you'll be able to find out if that will work for the UAD cards.
 

jrankin

Member
It may be that the active card would work. As I said, someone may want to give it a try and it would be a great option if one of these cards could be shown to work with UADs. As far as the passive card is concerned the IRQs may be hard wired to those flying leads, slots 2 and 3 may not pick up the interrupt coming in on the main connector.
 

Fundy

Established Member
Interesting stuff...that peaked my interest. They don't cost so much, sop may be a viable option to go along with a new motherboard for me in the future.
 

imdrecordings

Venerated Member
a-ha!
$75.00
I'll have to see their return policy.
http://www.orbitmicro.com/global/3x....html?osCsid=b3863275de31110c486dac534025dbfa
I only have PCI slots.. don't know if tis one would fit... it says it will. I'm worried that the extra chip might get in the way of the standard 32bit PCI slot. Anyone?
All of them:
http://www.orbitmicro.com/global/ad...earch&osCsid=7bffbbbdafcab3d0ac14bb6a1043d6ea
Now, to find those extension cables. hmmmm 8)
Edit:
BINGO!
http://www.orbitmicro.com/global/ad...earch&osCsid=7bffbbbdafcab3d0ac14bb6a1043d6ea
 

djsynchro

Hall of Fame Member
imdrecordings said:
Why would that matter if you had all of the UADs on the same IRQ, coming from one slot, like UA recommends?
Is that right? I thought everything should have its own IRQ ideally?
 

imdrecordings

Venerated Member
djsynchro said:
imdrecordings said:
Why would that matter if you had all of the UADs on the same IRQ, coming from one slot, like UA recommends?
Is that right? I thought everything should have its own IRQ ideally?
Right, but UAD cards work fine when sharring an IRQ with another UAD card. In theory this should work. :)
 
G

Guest

Guest
imdrecordings said:
djsynchro said:
imdrecordings said:
Why would that matter if you had all of the UADs on the same IRQ, coming from one slot, like UA recommends?
Is that right? I thought everything should have its own IRQ ideally?
Right, but UAD cards work fine when sharring an IRQ with another UAD card. In theory this should work. :)
....and so do RME cards..and I'm running three HDSP cards and 4 x UAD-1 cards in my master DAW. I have been considering purchasing the SBS PCIe>PCI 64 bit expansion chassis. I've already got it priced at $2050 from GEFanuc. I'm also getting ready to spring for a Tyan S2915 and pair of Santa Rosa Opterons.

I'm looking at these as a 64 bit option:

http://www.circotech.com/2u-3-x-64-bit- ... cable.html

I'm thinking of buying three of them. One for the RME cards and the other two to daisy chain to accommodate my 4 x UAD-1 cards. If it works I'd be good for 64 bit without spending 2k on the SBS chassis as long as the host card has compatible voltage keying for PCI (which I will need if I want to run the RME cards on the PCIX bus and the UAD-1's on the PCI bus.

It would certainly be worth a try. 3 of these 2U riser cards would be under
$200.00.

The case is not a problem. I have all of my components on test benches in a machine room where I don't hear the racket.
:wink:
 
G

Guest

Guest
Heheh!!! This ain't gonna work. These devices are designed to mirror mobo slots according to tech support and won't work in any other way. The extra blades must be inserted into the mobo Of course, I think it would be possible to daisy chain a bunch of them together and loop the extra blades of each riser card back into the the slots on the next riser card, thus directing all PCI bus traffic from one card to the next instead of to the extra mobo slots. I decided to have some fun and got the tech support people at this company all freaked out when I told them that I was going to try this and asked what their return policy was. Calls were made from lower tier to upper tier techies within the heirarchy. They were genuinely alarmed. I don't think they will forget me for a while.

I love the smell of burning PCB in the morning.
:wink:
 

Agent Smith

New Member
imdrecordings said:
Check this out.. no need for a Magma..! :D
Could this work if you mount it away from the MOBO's PCI Bus? I hope so.
http://www.circotech.com/rack-mount-case-rack-mount-accssories-2urisercards.html
PC Builders.
Check this place out....
http://www.circotech.com/index.html
I"m going to be getting one of their Rack Mount Cases.
As Mr. Woodlock said this is a riser card needed to mount PCI cards horizontaly in a 2-U rackmount chassis because there's not enough space for the cards to fit otherwise. It doesn't expand the number of available PCI slots as it takes three slots to 'create' three slots.
Be aware that the 2-U chassis are meant for server mobos with integrated graphics chips and won't accept AGP or PCI-E cards, only PCI.
I have one on the shelf collecting dust because of it.
 
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