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Multiple PCI-6110 in one computer - Minimum Computer Specs?

I am building a computer system which will house 4 PCI-6110's. What minimum processor, RAM etc. is recommended. Also, can you mix the PCI bus speeds without adverse effects? Dell has a model that has 3 100MHz PCI slots and 1 30MHz slot. Would it be acceptable?

Thanks in advance.
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Hello,

In general, the specifications of a board are not dependent on the specifications of the computer. If boards use DMA, as all of our high-speed boards do now, the computer is not the factor. The main factor is the software, not the hardware. if you have LabVIEW, refer to the LabVIEW Release Notes particular to the version you have for more information about the minimum system requirements.

System performance is only an issue with single-point and continuous double-buffered operations, when the computer's ability to run a loop continuously is the only factor. Publishing specifications for double-buffered operations essentially is impossible because of the many variables present, such as buffer size, acquisition rate, bus type, bus activity, CPU activity, and
so on. Speed is an issue for single-point I/O only with digital I/O and handshaking. National Instruments does publish specifications for typical transfer rates with actual computers for boards such as the DIO-96.

Hardware specifications are not dependent on the system if the board uses DMA. The specifications are more dependent on your software and other processor activity occurring at the same time as the data acquisition.

Regarding your second question, your PCI 6110 requires a bus that has a clock speed of 33MHz, so it's definitely going to work on your first 3 slots but I am not sure if it will work on your 30MHz slot since it's too cloe from the clock speed required. It would be better if you can find a PC that has its 4 slots running at a speed faster than 33MHz just to be sure they will all work.

Please let me know if you have any further questions.

Best regards,

LA
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Thank you for your quick response. I believe I may have been in error when I specified the 30MHz PCI slot. It most likely was 33MHz. Since then I have found the ABIT KV8Pro-3rd Eye motherboard with 5 PCI slots. They don't mention the bus speed so one must conclude it is the standard 33MHz. So I guess my question now becomes: For a very short test period (nano or micro seconds) will the PCI-6110's save the data in an oncard buffer so that the data can be read later or will the cards try to transfer all 16 channels at once into memory possibly causing DMA clashes etc.?
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I forgot to mention, I will use LabView 7Express to acquire the data.
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Hello,

I am glad my other response was helpful for you. Regarding your new question, in the case you are going to acquire data in such short periods of time, I would recommend you to do a continuous buffered acquisition so that you can store all your data in a buffer and access it later. This is because we would know for sure that we acquired all the data you need, instead of running the risk of not having the DMA transfer fast enough that a new value might catch on an old value ready to be transfered through DMA. This would happen if we do a single point acquisition, not a buffered one.

Please let me know if you have any further questions.

Thanks,

LA
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@le Gross Bill wrote:
I am building a computer system which will house 4 PCI-6110's. What minimum processor, RAM etc. is recommended. Also, can you mix the PCI bus speeds without adverse effects? Dell has a model that has 3 100MHz PCI slots and 1 30MHz slot. Would it be acceptable?

Thanks in advance.





@le Gross Bill wrote:
I am building a computer system which will house 4 PCI-6110's. What minimum processor, RAM etc. is recommended. Also, can you mix the PCI bus speeds without adverse effects? Dell has a model that has 3 100MHz PCI slots and 1 30MHz slot. Would it be acceptable?

Thanks in advance.



Hi,
I am also trying to set up a computer system with 4 NI PCI-6110. I am having problems getting all of them to work together at the same time. If I put all cards in the computer will not boot, and give me a power supply overload error. If I use 2 cards, it will runs fine.

My question would be:
Did you run into power supply problems?

and more importantly:
Were you able to get a computer system with 4 NI PCI-6110 running? If so, on what machine?

Thanks in advance,
N. Chang
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Hello N. Chang,

I'm not sure if Le Gross Bill ran into any power supply problems or what kind of machine he was running, but these two links might help you out. The first one is a link to the specifications for the 6110 and the power that it requires to operate. The second is a link to a discussion forum thread on a very similar topic.

http://digital.ni.com/manuals.nsf/websearch/A9694D34EF10469386256E3000539747?OpenDocument&node=11888_US

http://forums.ni.com/ni/board/message?board.id=250&message.id=7178&requireLogin=False

E.Lee
Eric
DE For Life!
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