I really hope someone can help on this. New build. MSI H81i mITX MoBo with Celeron G1840 (Socket 1150) and 1 stick of Corsair 4gb DDR3-1333 memory. 300watt PSU. One 500gb HDD and 1 DVD drive (both sata-3) When I switch on the computer, all I get is 3 long beeps. No display. Nothing. MSI uses the AMI BIOS, and according to their website: "3 beeps - Base 64K memory failure - bad memory". Memory is fine (brand new and tested in another build). I removed and reseated it to be sure. Memory is in DIMM1 (of 2) closest to CPU. There are separate Beep Codes for "memory", so I'm wondering what "Base 64K memory" is? If it were the CPU, that has its own Beep code as well, so I don't think it's the cpu cache. I'm trying to build a HTPC for Mother's Day, so time is of the essence. Please help! TIA.