970 Extreme4 RAM error

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   I have a 970 Extreme4 Mobo and fitted 4 x 8Gb identical 1866MHz DDR3 CL10 DIMM (Kit of 2) HyperX Fury White Series

The PC (Win7 Ultimate) will boot with either pair of chips in white or blue slots, but not with both pairs in all 4 slots!

Any help would be appreciated.
Thanks.

Edited by omnia - 04 Jan 2016 at 7:47pm

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omnia Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Jan 2016 Status: Offline Points: 3	Post Options Post Reply Quote omnia Report Post Thanks(0) Quote Reply Topic: 970 Extreme4 RAM error Posted: 04 Jan 2016 at 7:46pm
	I have a 970 Extreme4 Mobo and fitted 4 x 8Gb identical 1866MHz DDR3 CL10 DIMM (Kit of 2) HyperX Fury White Series The PC (Win7 Ultimate) will boot with either pair of chips in white or blue slots, but not with both pairs in all 4 slots! Any help would be appreciated. Thanks. Edited by omnia - 04 Jan 2016 at 7:47pm

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 09 Jan 2016 at 4:54pm
	Oops. Sorry for the late reply. I somehow missed your post. Do you still need help or you get it sorted? Either more CPU/NB voltage, or the two 16GB(8GBx2) kits you have(had?) had differering SPD profiles programmed on them.

PetrolHead Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 07 Oct 2015 Status: Offline Points: 403	Post Options Post Reply Quote PetrolHead Report Post Thanks(0) Quote Reply Posted: 09 Jan 2016 at 7:56pm
	Just to add to wardog's advice, if you're trying to run those modules @ 1866 MHz, then it's an overclock no matter what AMD CPU you have. This is why you might need more CPU-NB voltage (note: not the same thing as NB voltage). Depending on your CPU and the type of memory modules you have, it might be a mild OC or a big OC. If it's mild, you shouldn't need to do much to get it stable, if it's a big OC, you might be better off setting your RAM to run on a lower clock speed. The effect of performance will be negligible in normal use and you may also be able to tighten the timings a bit to compensate for the lost MHz.
	Ryzen 5 1500X, ASRock AB350M Pro4, 2x8 GB G.Skill Trident Z 3466CL16, Sapphire Pulse RX Vega56 8G HBM2, Corsair RM550x, Samsung 960 EVO SSD (NVMe) 250GB, Samsung 850 EVO SSD 500 GB, Windows 10 64-bit