BSOD when waking from sleep

Hi all, I have been getting random BSOD after waking the computer from sleep. On the last BSOD the CHKDSK utility ran automatically when the computer rebooted. The computer is a self build. Thank you for looking, hope you can help. Attachment 233724 (http://www.sevenforums.com/attachments/crashes-debugging/233724-bsod-when-waking-sleep-sf_26-09-2012.zip)