BTW, for the record, I’m using all ADS or SIIG firewire cards (some PCI, some PCI Express) with TI chips. They all seem to perform about the same. One of the models is an ADS card from a certified Avid/Digi list which works with Pro Tools, and it turns out to work beautifully with the MR. Those seem to be hard to find nowadays, but the SIIG models seem to work well too. I do not bother with onboard firewire anymore, even if it’s TI-based. I had one Gigabyte-based DAW just a couple of years ago give me a few troubles, and when I switched to ADS, it immediately worked better. Your mileage, as usual, may vary! 