I wanted to get more RAM for my older PC (CPU Q8400 on Asus P5P43TD PRO). The motherboards' specs say it works with 1600Mhz RAM so I bought 8GB of Kingston HyperX Blu (Kit 2x4GB), code KHX1600C9D3B1K2/8GX. I already have the latest version of BIOS but it doesn't POST for the life of me (fans are working, black screen, no beeps). I tried inserting only one stick (tried all 4 slots). I tried both sticks in slots 1 and 3, both sticks in slots 2 and 4, still no luck. When I put back my old RAM (2x2048 Kingston Value RAM) it works just fine. Everything in BIOS is set to AUTO. I tried increasing the RAM voltage to 1.65v as specified on the new sticks without success. I'm sure the memory is fine but I just can't get it to work. Any suggestions are greatly appreciated!