Has anyone ever had ram that only worked at a certain clk?

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yzfury

Aug 1, 2018
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I've just spent many many hours trying to get w10 on a new pc build. The installer kept freezing up at random points, but the bios had no problems at all. I tried a recovery and also a linux USB stick and they all froze randomly. Sometimes at boot and sometimes like 10 mins in. I narrowed it down to either the RAM or PSU (maybe the CPU?) . Then I let the BIOS run an overclocking setup just to see if that would make it happen more frequently, in case it was the power supply. It overclocked the CPU a decent amount and the RAM slightly .After this, it has worked like a charm. I'm not really sure why though. I did see the particular RAM is not supported by the mobo(I should be checked the EXACT RAM I bought). So the second question, would it be better to return and get RAM listed as compatible? It just doesn't seem right to have this much trouble and then it somehow works. Thanks in advance for any insight!

Edit: here's the setup

Asus prime z370-a

Intel i7 8700k

Ballistix Sport LT 8GB Single DDR4 2666 MT/s (PC4-21300) DR x8 DIMM 288-Pin Memory - BLS8G4D26BFSE

EVGA SuperNOVA 650 G1+

Samsung m.2 960 evo 500GB

Corsair h100i v2

I have yet to at the Graphics card
EVGA GeForce GTX 1060 3GB
 
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Jwpanz

Jwpanz

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Apr 17, 2016
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The issue is most likely the RAM. Out of the box, the Z370 chipset will click the RAM at 2400MHz so this is effectively under clicking your RAM. By setting the overclock you are probably running at the RAM’s native speed of 2666MHz. Since the RAM is not on the QVL (check online for a more accurate list) it may not be stable at a lower clock speed.

In short, if it works then don’t question it until you get something to replace it.
 
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geofelt

geofelt

Titan
Oct 9, 2006
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The gold standard for testing ram is memtest86.
You should be able to complete a full pass with NO errors.

Ram will have a lifetime warranty.
If memtest shows an error, rma the ram.

Intel motherboards, unlike ryzen are not picky about ram.
I question the use of a single 8gb stick, a 2 x 4gb kit would operate in faster dual channel mode.
Adding a second similar stick in the future is not guaranteed to work; ram is supported only in matched kits.
With a high end setup like yours, I would return the ram if I could, and buy a 2 x 16gb kit.
 
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yzfury

Aug 1, 2018
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0
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I had tried running it at 2666 MHz, and it did not want to work. It's still weird that it started out of nowhere. The current frequency is 2747 MHz.I can memtest it. I actually do have two 8GB sticks( Meant to say that), they were not a set though. I'll check into sending it back, and getting a matched set of sticks that are on the supported memory list. As of now though, the PC is working great. This is my first build, and I've learned quite a lot in retrospect unfortunately. Thanks for the help!

edit: it looks like the RAM actually is on the lost, just in a different color. But it still only works with the XMP profile.
 
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