I'm trying to determine if my 64GB RAM kit is 24/7 stable, rig is in the signature.
The configuration I'm trying to find memory stability is is:
9900KS + Gigabyte Aorus Master + BIOS F11e
vCore: 1.2v Adaptive+75mv
CPU ratio: 50
AVX : 1
Uncore ratio: 45
XMP: Enabled (no overclock)
Memory kit: G.Skill Ripjaws 4x16GB DDR4 3200 Mhz - [email protected] (F4-3200C14Q-64GVK)
DDR Voltage: 1.35v
DDR Training Voltage: 1.35v
Intel Speed Step: Disabled
AC Loadline: Power Saving
This particular config passed any CPU stress test I threw at it: Prime95 v29.8 build 6 (Small with or without AVX, Large with AVX, FFTs in place 112k-112k no AVX), AIDA FPU, AIDA all + GPU, OCCT, Blender for 4h+, LinX (7/10 residuals match).
For years I've been using the HCI Memtest and found it to be very reliable.
With 9900KS I heard word around that people were using some other tools for the exact same purpose, namely Karhu and TM5.
Gave both of them a try and noticed the following, when Uncore multiplier is 45
1. Karhu passes 8775%+
2. TM5 + extreme .cfg by anta777.cfg
reports 1 error per cycle
3. HCI Memtest Pro 5.0 reported 1 error at 34%?
4. HCI Memtest Pro 7.0 reported error at 153.6%?
If Uncore is 43, there are no errors in any of the 3 variants (Karhu, TM5, HCI Memtest Pro v5.0 or v7.0)
That I get.
What I don't get is why for Uncore 45
I pass Karhu 9000% (well beyond their recommendation) and fail the other 3.
I'm not really comfortable with the idea of HCI failing. And that particular idea is backed up by TM5 too, albeit with a special .cfg which is supposed to hit harder.
I haven't tried the default .cfg for TM5.
Is Karhu too soft on the memory maybe?
Also, another thing that I don't get is the 50+ and even 51+ multiplier-like CPU Effective Clock values applied to some cores in Karhu and both HCI versions.
I marked those occurrences with X in the attached images, first tab.
I'm thinking that I get errors in HCI because of those freak CPU Effective Clock values but then again, I get them in Karhu too and it ran 9000% with 0 errors.
Any input is appreciated, thank you kindly.