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MSI 970A-G43 PLUS 16GB ram problem

Hello,
I bought a MSI 970A-G43 PLUS with 2 sticks of Samsung 4GB 1Rx8 PC3-12800U-11-13-A1 Dual Channel RAM... So few weeks later I bought another new 2x4gb of same parameters but different manufacturer and added to my mobo.... Did not boot up and nothing happened... tought it was ram problem... Sent back the ram and bought another Kingston 2kit ram of same parameters... ALSO DID NOT WORK.... Then I took my friends 970A-G43 Plus 2x4gb ram that worked for him, tried to boot up and nothing showed up like all those other rams.... What could be the problem? Should i change something in bios?
A nice response will be appreciated :)
Reply to sandijs11
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More about msi 970a g43 16gb ram problem
  1. Memory manufacturers guarantee the rated speeds of any memory to be obtainable only in the kit it is sold in. If you are adding an additional set of memory, the rated timings may not work due to the extra stress on the memory controller. Therefore, you may need to relax the timings and/or frequencies in order to get two sets of memory to work. Another option you may need to do is increase the dram voltages or reducing the CPU multiplier.
    Reply to Calvin7
  2. Best answer
    Pull the CMOS battery on your motherboard and let it sit for about 15 minutes. Put the battery back in and try one stick at a time starting with the two original sticks. Also, if you can get to the BIOS using one of those original sticks set it to "load optimized settings". If it boots to windows try adding the other original stick. If it still boots try the new two. If it won't boot pull them all and try the new two sticks in the slots that the original memory were in. If it boots doing that try putting them in the other two slots. If it still boots in the new slots you've narrowed it down to the motherboard not accepting all slots filled or with two different pairs at the same time. Chasing down memory incompatibility problems is pretty much trial and error.
    Reply to jeffredo
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