aslong as your sure they are for onboard,don't forget the 3770k is different to the 2500k
hyperthreading ect
bent pins usually = memory issues,same as overtightened cpu cooler/flexing motherboard
done a cmos clear yet? it could be messed up slightly from your old cpu being in there
dual channel and two sticks is always slots 2 and 4
0 1 0 1
1 being ram stick installed 0 being empty
Going to try removing the Cmos battery and see if that helps.
The ram has always been in slots 2&4.
Before I bought the mobo, I got the pin layouts for the board( from Asus forum moderator) and the chip( from Intel). Using the two together all 3 pins were associated with the onboard graphics. I also checked it 3 times to make sure before buying it and the results were the same. And I have never had a problem with it.