Sabertooth 990FX R2.0 and G.Skill Ripjaws X F3-1866C9Q-32GXM problems

plaugewolf

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Sep 10, 2017
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So i was so excited to get my ram in, after the fiasco with the previous bit of ram that is. long story short the corsair hyperX fury's i had, all 4 of them were the same, identical 8GB sticks, from 2 packs of 16GB. i just could not get them to work with my mobo/cpu for anything. found out the hard way that one of the 4 was DOA from newegg, so i said to hell with it, and went online to lookup the QVL for my motherboard, and find a set of 32GB ram that will work.

my Ripjaw X (model: F3-1866C9Q-32GXM) came in this afternoon, and i proceeded to POST a single stick at a time, to make sure that none were bad, and they all posted fine through MemOK, showed up in bios, etc.

Installed all 4, went into bios, bios is showing i only have 16GB or ram, and that its only clocked at 1333MHz. language redacted

Set OC tweaker thing memory frequency to 1866 manually, and POST fails, memory beep code.

cpuZ shows: https://i.imgur.com/G3lSldJ.jpg

Relevant hardware:

SaberTooth 990FX R2.0
AMD FX-9370 @ 4.4GHz
4x ripjaw x F3-1866C9Q-32GXM 1866 DDR3 ram

what am i doing wrong here? how do i get my ram to work properly? is it a BIOS setting? IOMMU? Is the moon really made of cheese? What does the turtle say?


I'll go ahead and preclude some questions I've seen frequently.
Yes, i absolutely must have 32 GB of ram, frankly i run out too often on 16GB of ram.
If needs must, i will simply order whatever i need to get this working, I'm honestly at the point where I'm about to say screw it, and buy a new motherboard, CPU, and RAM, and return the parts that didn't work.

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Lutfij
 

Lutfij

Titan
Moderator
1| Have you made sure your motherboard BIOS is up to date, prior to your ram upgrade path?
2| Have you tried using the rams in pairs and finding if they run at their advertised speeds? You're going to have to manually set the latency, frequency and voltages for the ram within BIOS.

^ DDR3-1866MHz
9-10-9-28-2N
1.5v

You could see if they seem stable at 1.65v but that should be the absolute max voltage for that kit.
 

plaugewolf

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Sep 10, 2017
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yes, i actually flashed the bios day before yesterday. i'll have to give running them in pairs a try though.

ive heard that the MC can struggle to push enough power to handle all 4 DIMMs is that why i'd need to overvolt?
 

plaugewolf

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Sep 10, 2017
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ok, so weirdness. apparently that DOA wasnt so DOA, maybe i just didnt seat it fully. all 4 HyperX fury's installed now, ram is back to 1866MHz.
Still only showing as 16GB though. which is annoying. i messed around a bit with the OC settings, and raising the offset on DRAM voltage doesnt seem to do anything. to the voltage, i mean.

im stumped, gunna return the ripjaws. i think the ripjaws were actuall for revisionn 1 or 3 anyway... seeing as i dont see it on revision 2's QVL list...
 

lavellsapp7298

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Sep 13, 2017
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Assuming that the BIOS is up-to-date (version 2901) and that the memory timings are set properly, the only thing I can think of is that according to the ASUS website, the AMD FX-9370 CPU has limitations on this motherboard. The inability of running 32GB of RAM could be one of them. The only way you will know for sure is if you get the popular CPU for this motherboard which is the AMD FX-8350 and test it. If it runs 32GB of RAM without any problems, then you know that your current CPU is the problem.
 

plaugewolf

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Sep 10, 2017
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funny thing is, 3 sticks of ram works, for the hyperX, 24GB @ 1866, but add in that last stick, and bam, drops it down to 16GB. i suspect some kind of channel nonsense is going on...