HP Elitebook Memory initializing error

Hello friends,
iam very desperate and i damn hate pc problems so much…i just got my new Kingston HyperX hx426s15ib2k2/32 Kit 2666 Mhz but my laptop doesnt boot, beep codes which means memory initializing error.
i have an old laptop HP Elitebook 820 G3 with Intel i5 6300U CPU, current RAM is 8GB which runs on 2133 Mhz clock speed, i think the clock speed is the problem because if i install the 8GB and the 16GB RAM from Kingston the clock speed underclocks the Kingston to 2133Mhz
If i install the 32GB Kit the laptop just beeps, i think because it doesnt underclocks the RAM speed
in the bios is nothing helpful for configuring, its very limited because its a business laptop

i dont know, can maybe someone help me? maybe to fix the clock speed to 2133 Mhz but let it be flexibel because if i just write this thread the clock speed sinks down
i have attached the newest bios file

greetz, i know my english is not oerfect :wink: