On the Asus board here when a dimm was partially lifted in the slot while still looking as if it was down all the way the board beeped one short type of beep constantly(beep, beep, beep, beep, beep, ....) until it was realized that a little more pressure was needed to hear that click as it snapped down. From the system specs in your signature you are running an Asus board that generally has the Award-Phoenix or AMI type bios chipset where the codes listed point at some type of video adapter problem. You may want to try reseating your video card after cleaning the slot and rest of the case with an can of air cleaner to see if a dust/dirt buildup is your problem there with impartial contacts in the slot itself seeing only a partial functioning of the card.