Hello,
well to run the memory in dual channel you the pair of DDRs have to be in slots with same color.
I have seen some thread somewhere around this forum, where someone had the same problem. I don't remember exactly the link to that thread, but basically the problem was that there were some bent pins on the processor socket, which belong to RAM, they got the same error.
All they had to do was to take the magnifying glass or microscope and bend the pins back with a toothpick. Then make sure your CPU is sitting properly and your cooler is making equal pressure on all sides.
Hope this will work for you.
Also don't forget to turn on the XMP in BIOS to get full speed from DDRs.
EDIT: Found the link for original thread:
http://rog.asus.com/forum/showthread.php?47812-MAXIMUS-VII-HERO-Dual-Memory-wont-work-error-55&count...Next time you should use search
🙂
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