Hi!
I have this problem too. but I think the problems in the USB3.0 drivers.
My actions:
Step 1:
install OS Win 7 prof x64
Step 2:
reload
(Successful load)
Step 3:
install the network driver and install all updates v''tsentr Update Windows "(successfully)
Step 4:
reload
(Successful load)
Step 5:
Download drivers from
http://www.gigabyte.com/products/product-page.aspx?pid=3440 # dl
Step 6:
install chipset
reload
(Successful load)
Step 7:
install audio driver
reload
(Successful load)
Step 8:
install the driver USB3.0
reload
(FAIL load)
Next:
mhsn64 already described the problem.
configuration:
I have 2 identical PC
power man 450w (ip-S450T7-0)
GA-P55-USB3 ver 2.0
core i5 3.2G.H
kingstote 4gb kvr1333d3n9k2/4
geforce 210
hitachi 320gb p/n:0A39264