Question Can't boot with ram dual mode anymore

[nigas999]

My setup:
Asus Prime B350-plus
Asus GeForce GTX 1060 6Gb
Ryzen 5 1600
Corsair Vengeance CMK16GX4M2B3200C16 2x8 Kit

So I have used this setup in stock for more than 2 years. Yesterday I tried to configure my ram and CPU setups in BIOS to OC. During stress test PC shutdown and won't boot, so i have reset my CMOS twice but nothing happened, only black screen with led and fans working. After some time I've found that if I have only 1 ram inserted it will boot, but when I insert second one it won't. It doesn't depends on the slot, so I've tested every single slot with each RAM plank and I can boot. If i try to boot with 2 planks in every position, not only dual mode, I get black screen in every combination. So it seems like my RAM works single in each slot, but together pc won't start anymore. Ive also tried different frequency and voltage in bios, but nothing happens.
Can you help me guys?

TLDR: Tried to oc, failed during stress test, pc starts but only with black screen, no boot. Cleared CMOS, figured that it won't start in dual mode no more, works perfect separatly in every single slot, every single plank.

 

[Calvin7]

Ryzen 5 1600
See Memory Configurations table

3200MHz may be too much for that chip. You may need to clear CMOS and set lower speed.

 

[nigas999]

Ryzen 5 1600
See Memory Configurations table

3200MHz may be too much for that chip. You may need to clear CMOS and set lower speed.

Thank you for the reply, but I've never used ram on 3200MHz, it was something between 2100-2800, 1.2V. I have also booted with 1 plank, set the lowest frequency, standart voltage, then inserted second plank and pc won't boot. Do you have any ideas what could be the solution?