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Power connection for ASUS WS X299 Sage

Jeroen

Jeroen

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Hi

My MB documentation suggests that I can connect an extra powersupply using a 6 pin connecter as an option, see capture 2.
However, the cableset of my powersupply (Superflower leadex platinum 2000W) does not include a cable that will fit, so I use a single 8 pin connector.

So I have now connected positions 1 + 2 (see capture1), position 4 is the suggested extra 6 pin connector and position 3 is a second 8 pin connector.

My system includes;
  • intel core i9 7900X with watercooler, running at standard 4300MHz
  • 8x16Gb memory, 2666MHz Kingston hyperfury
  • 4xRTX2080ti
I do not attempt overclocking, I am primarily interested in stability & reliability.

At first, everything seemed to be working fine but then (when I used my system for rendering heavy scenes or baking large simulations) I experienced random crashes. I used MemTest64 and it showed memory errors.
In order to fix memory errors I have increased RAM voltage from default 1.2V to 1.3V (I tried 1.25V, but that still showed errors), after I increased memory voltage, my system runs perfectly stable.

My questions;
  1. Is this voltage increase safe for my system? I use CPUID's hardware monitor , and I do not notice harmful temperatures but as far as I can see it does not monitor RAM temperature directly.
  2. Could it be that not beeing able to use the extra 6 pin connector has something to do with this memory problem? I would like to try that out but I have no idea how to do that.
The documentation of my MB is unclear whether you are supposed to connect position 4 directly from the powersupply or from position 3 on my MB.
I tried getting an answer from both ASUS and Superflower, but without succes.

Any help would be highly appreciated.

Thanks for taking a look at this.
 

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Jerry James

Jerry James

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Hey Jeroen,

1) yep, you should have no issues with that voltage. Do check for stability by running some benchmarks and load tests like Prime95.

2) Are both your top CPU power pins plugged in? (EATX12V1 and EATX12V2)

You can have both the top power pins connected and a 7900X should work just fine. They should allow you to draw more than enough current to work at full capacity. You can safely ignore the third one (EATX12V3). Does your PSU have two 8-pin CPU power connectors?
 
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Jerry James

Jerry James

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PS. If your PSU comes with just one 8-pin and one 6-pin CPU power connectors, you can plug just those in. Use EATX12V1 and EATX12V3. Ignore the other one. That should work just as well too.
 
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Jeroen

Jeroen

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Hi Jerry,

I never realized that I could also connect both top 8-pin slots to the PSU, so I did what you suggested and set RAM voltage back to default.
Result; memory issue fixed!

Thanks a million for helping me out!
 
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