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Old 04-14-2013
Vox Vox is offline
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Angry Kingston HyperX vs ASRock mobo: supported/tested but not working

Hey,

My config:
AMD A10 5800K APU
ASRock FM2A85X Extreme4
Kingston HyperX KHX24C11T2K2/8X
1TB WD Blue HDD sata
Teac DVD-Writer sata
Cooler Master 212 Hyper EVO
Seasonic S12II 430W
Win7 x64 Ultimate

My problem is I cant get my ram modules to work none of its XMP profiles however this RAM is in the official support list.

http://www.kingston.com/datasheets/KHX24C11T2K2_8X.pdf
http://www.asrock.com/mb/AMD/FM2A85X...e4/?cat=Memory

XMP Profile #1: D3-2400 CL11-13-13 @1.65V
XMP Profile #2: D3-2133 CL11-12-11 @1.60V

The 2133 one produces BSOD and other coloring screen crashes very frequently (say once in every 5 mins) while with the 2400 profile the computer doesn't boot up at all.

Tried to lower the freq in the UEFI, in 1866, manual timing @ 10-11-10-27 or any other timings around it still produces BSOD. The higher timings brought me less BSOD but then x64 game appication crashes everytime instead.

I'm trying to find out why I can't use the profiles for a month now, but the most really annoying thing that I can't use my rams on even 1866 stable (!) which is way below the 2400 MHz that supported and tested by ASRock actually...

Maybe I should play some more around with timings but I'm not an expert and I don't know how. All I know if this timing play would be on 2400 or 2133 MHz I would say OK , but on 1866?

Please, may I ask for your help how can I get those rams working at least 1866 stable! I'm getting lost all the confidence.
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Old 04-14-2013
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sdbardwick sdbardwick is offline
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1. If you are using 4 DIMMs, you are unlikely to get a high memory overclock.
2. Set the memory voltage manually before selecting the XMP profile.
3. Verify memory voltage after selecting XMP.

Last edited by sdbardwick; 04-14-2013 at 01:22 PM. Reason: #3...
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Old 04-14-2013
Vox Vox is offline
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Correction: with profile #2 (2166) my screen goes to black for a 2-3 seconds very often instead of BSOD. Is this something related to voltage?

its 2x4GB modules.
I have set the memory voltage up to 1.725V and the screen still goes black for few seconds very often.
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Old 04-14-2013
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Kougar Kougar is offline
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Set the ram to DDR3-1333Mhz 9-9-9-27 timings, 2T with 1.5v and see if that helps.

You may need to update the BIOS on your motherborad as well
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Old 04-14-2013
Vox Vox is offline
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On 1333 MHz and 1600 MHz I have no problem at all.
1866: BSOD frequently
2133: screen goes black for 2-3 sec frequently
2400: no boot at all.

Bios updated to the latest one already.
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Old 04-14-2013
mariush mariush is offline
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There's a limitation of the AMD processors and the northbridge inside.
With 4 modules, frequencies above 1600 Mhz are not guaranteed (or shall we say not supported) and may downright be refused. With only 2 modules, 1866 mhz is officially supported, more is not guaranteed.
A lot of motherboard manufacturers will list this tidbit.
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