Stopped booting with dual channel ram. Can only use single.

RyanReid

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Jan 7, 2014
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A couple of days ago I put in a new CPU heatsink. Coolmaster Evo 212. Once finished I tried booting up my desktop but no video. I took it off, re-seated the processor and tried again but still nothing. I took out the ram when putting in the new heatsink since I had to take the mobo out of the case, I removed everything. Ram was originally in slots 1-3 so that's where I put them back. Currently running in single channel (1-2). I have also tested each ram individually, both seem to run at the proper speed by themselves (booted with just one in at a time.) So the ram itself doesn't seem to be the issue. I also tried booting them in slots 2-4 but same thing, no video. Would of removing the processor changed some sort of setting I am not aware of, or would the 3-4 slots somehow been damaged during this?

I bought my computer have have been (very slowly) upgrading it. Wish I just built my own from the start.
Specs:
OS: Dual booting Ubuntu 13.10 and Windows 8.1 (Secure boot is off)
Mobo: IPMMB-FM (Formosa) Link to MOBO
Processor: i5-3570k
GPU: Zotac GTX 660ti
PS: Corsair GS 800 (Overkill I know)
RAM: Elpida 2x 4G DDR3 1600. Speed: PC3-12800 MB/sec

Nothing is overclocked, (I was planning on overclocking my CPU in till this happened)

Sorry if I have missed anything important, thanks for all of your time!

EDIT: Ram, Mobo, and CPU game with the computer.
 

RyanReid

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Jan 7, 2014
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Currently running in single channel (1-2). I have also tested each ram individually, both seem to run at the proper speed by themselves (booted with just one in at a time.) So the ram itself doesn't seem to be the issue.

Already did that. Thanks though.
 

rcfaro

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Oct 2, 2013
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hi,

I have same problem, my MSI Z97 Gaming 5 stop working dual chanel i can only use DIMM 1 and DiMM2 (single) its working fine DIMM 3 and DIMM 4 (dual) doesnt work. i already try dimm by dimm with 1 memory stick and only dim 1 and 2 works. I request a RMA on store but now i have a problem, when i take off mobo to put in box i remove CPU my mistake i touch with finger in pins and 5 or 6 pins are bent... iam f**** i think MSI not accept warrantly... if not accept what i can do? The problem is not bent pins is dual channel not working, i try system after bent pins and everything work fine less dual channel.
 

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