Hi,
I am having a bit of an issue with my memory. I am using 4x4 GB 3000 MHz CL15 from Corsair (CMK16GX4M4B3000C15, it is on the list of recommended RAM in mobo manual), Asus X99 Sabretooth motherboard and 5960X. Memory should work at 15-17-17-35 1.35V. It kinda does with XMP, but XMP uses 125 BCLK and I am not reaching stable overclocks with this way of memory setup. Without it I am fully stable in AIDA64 stress test with 4.7 GHz core and 4.5 GHz cache, both at 1.3V, which is great (my chip was advertised as binned, 4.8@1.38)
The problem is, when I try to set things manually, 3000 DRAM, 15-17-17-35, 1.35-1.4V, and 1.176 VCCSA (the same what XMP sets) I won't even boot, not only on 3000 but anything up from 2600 is not booting at all, there is even no signal to the display. Max is 2400 MHz, but at this frequency I am getting errors with 12-12-12-35, so pretty worthless. I would have kept it if it was doing CL10, but with this... 2400 boots with no changes to voltages, and then 2600 suddenly won't boot at all even with aggressive DRAM, VCCSA and VCCIN voltages.
So I would like to ask for an advice what to do and what tweaks to try, because my CPU is overclocking great, but so what if I am left with 2133 CL15 memory... Why can't it just boot when I set memory frequency manually?
Alternatively I would be thankful for advice on how to stabilize my overclocks assuming that I have to use this XMP, memory on this platform seems really complicated, on my previous platforms like Z97 or X79 memory was just one click and sometimes some small VCCSA tweak... but now things are looking pretty hopeless so far
Also I think an important information, I had MSI X99A SLI before, and even though it wasn't a good mobo, memory was booting with no issue at manually set DRAM frequency to 3200 MHz, so it doesn't look like that those sticks are bad.
Thanks in advance