So I recently purchased the following parts:
And the problem is that I can not get the XMP setting stable at all. The best test for this is running memtest86 v7.3 test #6 (block move) on loop, like 50 passes.
With just XMP enabled, I get two errors at a time, during some of the passes (like this). The z270-a sets the VCCSA voltage to 1,240v automatically when the memory is running XMP/3200MHz and similarly it sets VCCIO voltage to 1,128v when the XMP is enabled.
I set the VCCIO voltage manually to 1,200v and this allowed me to get 37 passes before I saw two errors so I also tried settings of 1,225v but I saw the errors a bit earlier this time. Now the thing is, I actually got myself another kit for testing and it has exactly the same problem as the one that I already had, making me believe that the problem is actually elsewhere and the ram is just fine. Also the errors seem to always be on quite different addresses.
To me it feels like that there is something going on with my motherboard or maybe the CPU's IMC is just bad and is not able to run the ram even at 3200MHz. I have been running the sticks at jedec standards (2133MHz, 15-15-15-34, 1,20v) and it seems to work, but I think I am going to test even this setup with the similar memtest86 test6 method to see if I still get errors.
EDIT: Yep, 2133MHz settings indeed do work without any problems in memtest86.
- i7 7700k
- asus z270-a
- G.Skill 16GB (2x8GB), Ripjaws V CL16-18-18
And the problem is that I can not get the XMP setting stable at all. The best test for this is running memtest86 v7.3 test #6 (block move) on loop, like 50 passes.
With just XMP enabled, I get two errors at a time, during some of the passes (like this). The z270-a sets the VCCSA voltage to 1,240v automatically when the memory is running XMP/3200MHz and similarly it sets VCCIO voltage to 1,128v when the XMP is enabled.
I set the VCCIO voltage manually to 1,200v and this allowed me to get 37 passes before I saw two errors so I also tried settings of 1,225v but I saw the errors a bit earlier this time. Now the thing is, I actually got myself another kit for testing and it has exactly the same problem as the one that I already had, making me believe that the problem is actually elsewhere and the ram is just fine. Also the errors seem to always be on quite different addresses.
To me it feels like that there is something going on with my motherboard or maybe the CPU's IMC is just bad and is not able to run the ram even at 3200MHz. I have been running the sticks at jedec standards (2133MHz, 15-15-15-34, 1,20v) and it seems to work, but I think I am going to test even this setup with the similar memtest86 test6 method to see if I still get errors.
EDIT: Yep, 2133MHz settings indeed do work without any problems in memtest86.
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