First time I got it was trying to run a drive benchmark, then I got the one in the photo below when running Prime 95 after an Overclock and I got the latest on today when analyzing a drive for defrag. They all had peaty much the same code as the one in photo.
 

 
Thanks

D.M.W.T

Sounds like an unstable overclock. Return to defaults and see if they go away. If so there's your answer

 
Got much the same one before overclock when tiring to benchmark one of the drives. I myself thing its the SATA III ports on the Motherboard and those Marvell Chipset drivers that the E770 Motherboard has.

do a chk disk possibly bad hdd
 
f4 according to a couple forums could be low resources
 
ie not enough mem or hdd space
 
how much hdd space you use? less then 80% of course right?
 
do a ram check put on stick in the first slot at a time booting up on stock settings if you cant boot up or bsod with one stick run memtest86 via cd or usb prewindows boot itll tell you if def bad memory red=bad
 
anyway i gotta roll
 
also check the health and run an error scan using hdtune

Looks like a memory error to me. I looked at your Mods Rigs page and you show your memory with a 4 timing on Corsair Dominators, loosen the timing up and see if you still have this issue.