Will my new MoBo (Asus M5A97 R2.0) support a three-DIMM (2+2+4 GB) configuration?

bifutake

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Aug 12, 2015
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MoBo: Asus M5A97 R2.0
DIMM's: DDR3 2x2GB Kingston 1333 MHz + 1x4GB Kingston 1333 MHz

My previous MoBo worked fine with these modules (until it died in an unrelated event). Various hardware diagnostic software even reported that I've managed to connect them in Dual-Channel.

I've been reading through my new MoBo's digital manual (the actual product should be in my hands in a couple of days) and page 27 (1-13) only specifies 1, 2 or 4 DIMM support. This puzzles me a bit. Can't I connect my 8 GB (2+2+4) on this board?
 
Solution
It won't lose dual channel. It will run in flex mode, like your last board. Put the 2 gigs in the same channel, and the 4gb in another, it will run the 2gb's in dual and the 4gb in single channel.

bifutake

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How much speed? What would be better, to keep all three modules or ditch one?

How do you explain the fact that, according to CPU-Z and HWinfo64, I was able to achieve dual-channel connection with these same three modules on my previous MoBo (Gigabyte GA-MA785GT-UD3H)? Won't I be able to do the same with the new one?
 

bifutake

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That was exactly what I was thinking last night. But now I have to start a new thread because my brand new MoBo won't POST. For some reason which I can't figure out.
 

Bobcat12

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Aug 11, 2013
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Remove the 4GB DIMM. Put the two 2GB DIMMs in BLUE Sockets and make sure they are a matched pair from the same vendor with the same CAS latency. Then reboot. It should go into POST. If Not rum MemTest to see if you have a bad stick. Also make sure it is DDR3 memory, and fits the correct speed. Don't OC until the machine POSTS. Add the 4GB SIMM next if it is DIMM you may need to add a second SIMM to match the 1st.