It has 16 GB DDR4-2666 SDRAM (2 x 8 GB) (https://support.hp.com/vn-en/document/c06706979) but for some reason it runs only at 2133 MHz. Also tested with another memory kit, Corsair Vengeance LPX 16GB (2 x 8GB) DDR4 DRAM 3000MHz C15 having identical results.
Any idea why this happens and is there something to fix it?
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