Ok thanks, the new sticks are Trident Neo's, my current sticks are ripjaws. I will try the 2/4 slot and see if I can get the system to boot.
Edit - OK that seemed to work. I reset bios to optimized defaults (didn't before), shut down, installed two sticks and system booted fine. Added the other two sticks and system booted up fine again. Went into bios adn setup DCOP, etc and so far so good!
Thanks for the assist!
Keep in mind that mixing DIMMs often causes problems for most users. This is why most manufacturers recommend you only use matched RAM. Also keep in mind that some manufactures use different dies in some configurations that they sell over periods of time, so keep that mind. 🙂
Having said the above, glad things are working for you.
Update to 3601, show qcode 22 error today, 3501 does not have this problem error
ps: I using Gskill Royal 3200 16X4