Ok so just a little while ago this is what I did. I plugged in a hard drive withought unplugging my computer but the power was off and changed the ram timing from 2t to 1t. Then after that my computer will not boot and it gives me beep codes that sound like this. Beeeeeeeeeeeep bep bep. I have an a8n sli premium motherboard with a Phenoix bios. Does anyone know what is going on.