My computer is a Digital Audio Workstation.
I use it under windows 7
My mother board is a DZ68DB with a I7-2600K CPU.
On the two PCI Express 2.0 x1 connectors, i have plugged two IEEE1394 controller cards.
These firewire ports are used for two MOTU ULTRALITE soundcards.
Since i have updated the bios from version 032 to 043, I noticed a significant decrease in performance on PCI express bus.
The system regularly loses communication with the firewire devices. They suddenly disappear and i must to restart them.
I did not have this problem before the bios update.
Can you help me?
By the way, how to downgrade to the 032 bios version ?
Thank you for your support.