|"i took off the cooler to check the thermal compound and somehow bent some pins"|
I'll never understand why people do this. As soon as you break the thermal bond, the paste is ruined & needs to be completely removed & replaced. I'm guessing you didn't power up the PC & get the CPU up to operating temp before removing th heatsink? If you do it cold, the CPU often sticks to the heatsink & ends up getting yanked out of the socket. If you warm it up 1st, all you need to do is give the heatsink a little twist & it'll pop right off. If you didn't break the pins off the CPU, all you had to do was straighten them & re-use it.
According to the manual: "For op-timum performance, when enabling Dual Channel mode with two memory modules, we recommend that you install them in the DDR3_1 and DDR3_2 sockets"
"i am using the first 2 slots closest to the cpu, but cpuz, says that is slot 1 and 3"
That IS slots 1 & 3. Actually, you're using slots 2 & 4. Going from the edge of the board toward the CPU, the slots are numbered 1-3-2-4 or if you prefer, from the CPU toward the edge of the board the order is 4-2-3-1. So you should be using the 2nd slot from the CPU & the farthest slot.