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Help with DDR4-3400

PipJones
Level 8
Hi, I'm new to the X299 world but have a few years experience with X99.

I have recently purchased a Strix X299-XE Gaming and 7800X and I am trying to get some "designed for X99" older DDR4-3400 working with it.

This is the memory kit:

https://www.corsair.com/uk/en/Categories/Products/Memory/DOMINATOR%C2%AE-PLATINUM-16GB-%284-x-4GB%29...

*Edit: CMD16GX4M4B3400C16 is on QVL list. (https://dlcdnets.asus.com/pub/ASUS/mb/LGA2066/TUF_X299_MARK1/Intel_CoreX-SeriesCPU_6core_or_above_DR...)



I have them running at 3000 15-17-17-34, with 1hr stability test complete. The problem i'm having is that if i go above 3000 the board drops channels.

So far i have tried:

increased DRAM voltage
XMP timings for 3200 and 3400
manual timings based on SPD
CPU Voltage tweaks
SA Voltage tweaks
DRAM Voltage tweaks (up to 1.36)

Can anyone suggest an approach for getting them to 3400?

Does anyone have any recommended reading/watching for tuning memory on this platform?

Many thanks
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PipJones
Level 8
Think I answered my own question ... well, with a little help from some friends too.

I’m using an Intel® Core™ i7-7800X.

I have been reading here:

https://www.intel.com/content/www/us/en/gaming/xmp-for-core-processors.html#:~:text=The%20document%2....

Open PDF and search for “Quad� (as in “Quad� channel). The first hits with “higher than 3000� memory settings are not the CPU that I’m using.

If I am interpreting it correctly, the only way to get quad channel working at anywhere near those speeds I would need an Intel® Core™ i9-10900 Processor.

(if anything, i'm doing well to hit 3000)