Since you have an older bios version 0052, it is best to update the bios using the following method:
Bios Update thru Recovery Method:
Download the latest bios file from the website below
Copy the bio file to a fat-formatted usb memory stick
Remove the bios jumper from the board.
Connect the usb stick on the target machine.
Make sure there is no other usb devices connected on the system
Switch on the system
Wait for the bios update to complete.
Put back the bios jumper to its normal position
Try to boot the machine. Check if after the 86A it is new bios version 0064
Now regarding the Intel82801PCI bridge 2444E:
(4) Intel 82801G (ICH7 family) PCI Express Root Port 27D0 needed updating
(2) Intel G33/G31/P35 express chips Root Port 29C1 needed updating
These can be updated by updating the Chipset Drivers with the latest version online.
Hope this helps a bit.