You may just need an increased QPI/Vtt voltage, this is often needed when increasing the memory to 4-8GB or above, try rasing this before you insert the second module and see if it helps. Try 1.2-1.35 and see if that helps.
It very well could also be a memory compatibility issue...
Hi i tried upping both memory voltage and QPI/Vtt, not helping yet. They were 1.5v and 1.05.
I checked and my ram are listed as being compatible for both the MX and the MA board.
I tried with other rams. But i'm quite sure the issue is with the boards
when more than one channel is involved.
When more than one channel is involved the boot cycle happens.
These are the ram's
http://www.corsair.com/vengeance-16gb-dual-channel-ddr3-memory-kit-cmz16gx3m4a1600c9b.htmlthese are their specs:
Performance Profile :: XMP
Memory Configuration :: Dual Channel Memory
Type :: DDR3
Package - Memory Pin :: 240
Package - Memory Format :: DIMM
Tested Voltage ::1.5
SPD Voltage :: 1.5
Speed Rating :: PC3-12800 (1600MHz)
SPD Speed :: 1333Mhz
Tested Speed :: 1600
Mhz Tested Latency :: 9-9-9-24
SPD Latency :: 9-9-9-24
Anything else i can try?