My PC was working fine until I moved it to another room. Now it will only boot with Ram in DDR3_1 socket. I have ADATA Ram, AD3U1333W4G9-B DDR3 1333(9) 4GX8 U-DIMM. I had to replace the processor since I broke off a pin trying to remove the fan. The damaged processor was AMD FX-4300. The processor is now AMD Athlon II X4 600e. I have Bios ver 5. The motherboard is GA-78LMT-S2. Both sticks of Ram work fine in DDR3_1 socket, but when I populate DDR3_2 socket with either stick, the computer does not even produce a video signal. I have reseated the Ram sticks repeatedly with the same result. I have tested it using both the onboard video and my PCIE video card with the same results. I am running Windows 7 when it boots up. Is this a damaged motherboard or is there some setting in BIOS that is off? I have tried the default BIOS and the fail-safe BIOS, and tried resetting the CMOS.
