1866mhz RAM Underclocking

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Darthseven77

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Dec 13, 2015
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i just installed another eight gigs of ram into my computer. all four sticks are identical but the ram is now underclocking from 1866mhz to 800. im not sure how to fix this, any help would be appreciated.
 
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Darthseven77

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Dec 13, 2015
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4,510


i have tried that and when i do the computer takes me back into the bios and wont boot and my motherboard is a Gigabyte GA-970A-UD3P ATX AM3+ Motherboard. im running it with an fx 6300


 
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TJ Hooker

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Apr 15, 2014
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Your CPU is only rated for 1866 MHz with two sticks (1 DIMM per channel).

https://en.wikipedia.org/wiki/Bulldozer_(microarchitecture)#Cache_and_memory_interface
AMD claims support for two DIMMs of DDR3-1600 per channel. Two DIMMs of DDR3-1866 on a single channel will be down-clocked to 1600.
Click to expand...
When you say it's downclocking to 800, where are you seeing that? Many utilities will report the actual memory clock speed (rather than transfer rate), so 800 MHz memory clock = 1600 MHz DDR.
 
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