How to grab two IEEE 1394 cameras simultaneously?

Is it possible to grab two or more firewire cameras simultaneously? I have two Sony XCD-X710 cameras and they are both connected in same card in PC. Grabbing works fine with only one camera, but when trying to grab two cameras simultaneously, the computer will crash. Sometimes it crash immediately and sometimes it takes few seconds to crash.
Used frame rate is quite low (about 3.75 fps).

It is definitely possible to acquire from two or more firewire cameras simultaneously, as long as you are not exceeding the bandwidth of the firewire bus (which you should not be at a frame rate of 3.75 fps).
What version of the NI-IMAQ for IEEE 1394 driver do you have? There were some issues with version 1.1 of the driver with certain cameras and simultaneous acquisition, and these were resolved in version 1.5 of the driver. If you have not yet upgraded to version 1.5, contact NI Sales at (888) 280-7645 for a free upgrade.
If you already have NI-IMAQ for IEEE 1394 version 1.5, please let me know and I would be happy to assist you further.
Best regards,
Dawna P.
Applications Engineer
National Instruments

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