Если появляется BSOD (синий экран с последующим рестартом) вызванный firewire драйвером 1394ohci.sys, попробуйте поставить hotfix:

http://support.microsoft.com/kb/981613

Для скачивания, нажимаем на
Hotfix Download Available
View and request hotfix downloads
и запрашиваем линки на свой email (пароль на архивы, там же)

In case this is not already known, Microsoft has released a hotfix for the Windows 7 firewire driver, 1394ohci.sys, to resolve an issue with data corruption or data transfer interruption during isochronous data transfers between a PC and a 1394 device.

This is probably a good driver hotfix to install for all Fireface 400/800 users with Windows 7 PCs. Link to download the hotfix is provided at the upper left of this KB article.