Hello, so I am fairly tech savvy but mostly with software. I've built my own computers so I'm quite comfortable inside the computer and also inside the BIOS. However, what I am not comfortable with and part of the reason I am here is Overclocking. To generalize my issue: I bought more RAM, I currently have 8GB Kit (4GBx2 1600MHz) and I bought a second 8GB Kit 1600MHz as well, Kingston Hyper X stuff for both sets, with the new Kit installed my computer will not POST. Other Specs: MB - P67A-C45 (B3) (http://ca.msi.com/product/mb/P67AC45_B3.html#hero-specification) CPU - Intel i7 2600k 3.4GHz GPU - nVidia GTX 980 PSU - 750W CoolerMaster I installed the new RAM kit, and the computer powers ON but does not POST. It turns on for about 5s then off (No beeps) but clearly the RAM is causing an issue. I removed the RAM and tested my board again with the original setup, POST's fine. So I installed the new set again (thinking maybe one didn't click in properly) does not POST. Then I removed the stick in DIMM 4 and it booted... so I removed DIMM 2 and put back DIMM 4 and it wouldn't boot. Immediately I thought I had a faulty board/DIMM Slot, however, I removed the new sets of RAM, moved my original set from DIMM1/DIMM3 into DIMM2/DIMM4 and it booted fine, put the new sticks in and it wouldn't post. Each set will post when separate (1 Kit at a time) but with both kits in it will not. So, my motherboard states in the Specifications (Link given above) to support 32GB of RAM. What I noticed, however, was that it says it supports "DDR3 1066/1333/1600*/2133*(OC)", and I also noticed in the BIOS that my RAM is being clocked down to 1333. I am wondering if this could be causing my issue with the no POST, and what I can do to resolve it. From the look of the Specs sheet it seems I have to overclock to be able to get the 1600MHz speed on my board, I have all the options available to OC but I have never done it and do not feel comfortable making these changes alone and was hoping someone on here could step me through what's needed to be done. If I am missing any information I do apologize, just ask and ye shall receive!