I have a PowerSpec G434 with an ASRock Z390 phantom gamming 4s/AC Motherboard. It has an Intel i7-9700KF running at 3.6 GHz. I bought this memory.
I have 4 sticks of them. I can not get the XMP to over clock at the rated speed. DDR4-3600 Cl 14-15-15-35. No matter what I do it shows up in HWinfo as: DDR4-3597CL 14-15-15-35 running on a clock of 1799MHz. It passes the Memory test 5 in the extream mode. Passes windows memory test in standard mode, but will not pass the windows memory test in 'extended' mode. It freazes. Is there anything I can do to get this to the rated XMP profile. I was told by TeamGroup that this should fix the issue, but I don't know what to change in the BIOS settings to get it to the rated specs. Is it a voltage issue? also I have tried to set the clock at 1860MHz and it don't help.
XMP profile is an overclock, stability is never guaranteed. Sometimes you need to tweak the settings a little bit to achieve stability. Lets go over a few things here.
First the memory speed at 3597 instead of 3600. You can check your BCLK in CPU-Z, but most likely the BCLK is dropping slightly under 100mhz on the auto setting. At 3597 it's likely hitting 99.9 instead of 100.0. You can manually dial this in via the BIOS to 100.1, but this really shouldn't result in memory instability. There are going to be other causes for this, likely certain voltage rails.
You're going to need to check the voltage rails and timings in the BIOS. Look at the VCCIO and VCCSA voltage. There's a community guide here: https://community.microcenter.com/discussion/comment/33456 that covers memory overclocking in depth. I would read that over to get started.
Edit: I just noticed you have 4 sticks. These are dual rank DIMMs. You're definitely going to need to loosen up the timings a little bit in addition to adjusting the voltage.
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