John,
My I/O express is in my assistants PC so I cannot check it but; The Kona 3 card is in slot 2 of this 12 core MacPro and a simulated digital cut of DNxHD36 seems to play out fine, probably not relevant if you are using uncompressed 10 bit!
However the Aja System Test allows you to measure the read and write speed to the card, the reading here is 464 MB/s.
Hope this helps.
David
--- In Avid-L2@yahoogroups.com, John Moore <bigfish@...> wrote:
>
> So I've been posting about the io express set up I'm setting up. It does work but today we tried to output to HDCam. Machine control etc... all worked but we could only output roughly 90 secs without a stall on dropped frames. I found it wouldn't even go more than a second when the output was set to 10 bit in the digital cut tool. Setting that to 8 bit and we could output 90 secs ish chunks. I tried media from both an internal drive and our fibre connected unity. I even added a sync generator and feed the deck and the io express reference but still just short chunks between stalls. I took the same project into my sndx mac and it output without a hitch. I'm wondering if the lane configuration could be an issue. right now slot 1 has 16 lanes with the 1900 radeon card. Slot 2 has one lane with the HBA card for the io express. Slot 3 has a celerity card for fibre at 4 lane. Slot 4 has 4 land with another video card that can be used
> for a full screen playback monitor but isn't connected now. Could the 1 lane be choking the io express for output digital cut? I thought I read somewhere that the io express only needs one lane but I may be misremembering that. Are slots 2 thru 4 all compatible so I could choose one of the other configurations and get 4 lanes to the slot 2 or should I just move the io express HBA card to slot 4 and put the extra video card in slot 2. The extra video card isn't feeding anything right now so a one lane slot wouldn't really effect anything would it?
>
> John Moore
>
> Barking Trout Productions
>
> Studio City, CA
>
> bigfish@...
>
> [Non-text portions of this message have been removed]
>
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