thanks for all the reply's, yes i have removed the 4 GB stick and ran with just the 8 GB stick, as well as i uninstalled panda antivirus. this stopped my BSOD for almost a week, however they have returned this morning. i have not tried running my system with just the 4 GB stick of ram as i would like to have at least 8 GB of ram in my system. I have however at many different points replaced every piece of hardware in this pc, ie new ram, new motherboard, processor, tried a SSD drive, and now a 1 TB western digital drive. the only thing i have not replaced is the video card for dual monitor purposes as i dont have an extra one at the office. I have pcap installed on my system for use with wireshark program which is needed for packet capturing of audio files that i need in order to decipher VOIP issues from time to time. i will post my latest BSOD collection file here shortly.