Brand new H81M-DS2 Ram slot 1 not working?

[Ekemongo]

Just made a brand new PC from scratch, I assembled everything together but I have one issue with the GIGABYTE H81M-DS2, the first RAM slot does not work at all, whenever I put RAM in the 1st slot and try booting up my PC all I hear is beeping sounds for a good 5 seconds then the computer restarts and repeats. I've used the same RAM stick in both slots but it only works in the 2nd slot not both together,I was wondering if there is some settings I need to change in the BIOS or what, my BIOS has all the latest drivers installed and not sure what else to do, just sucks cause I only have 2 ram slots so I only have 4 GB installed atm. Forgot to mention, I also THINK I resetted the CMOS by taking out the battery for a few seconds..

This is the RAM I got. http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=7868681&CatId=4534
The mobo. http://www.newegg.ca/Product/Product.aspx?Item=N82E16813128648
and the CPU. http://www.newegg.ca/Product/Product.aspx?Item=N82E16819116898

Please let me know if I left any other important details out.

Thanks