New Ram will only boot loop

[scriphy]

I had 2x8 corsair vengeance running at 2600 on an as rock b450m pro 4 with a Ryzen 1700. Tried to upgrade to 4x16 corsair vengeance pro but I saw on its packaging that it runs at 3600. Obviously my board/cpu won't run the memory at 3600 with how old they are but I assumed that the ram would be able to accommodate and run at the slower speed of 2600 or so and still work fine? after hitting power button it spins up for 30 seconds or so and then shuts itself off and tries again. If I put the original ram back in it will do the same thing unless I clear the CMOS first and then I can get it to boot once again. Any idea how I can get into bios with this new ram and change the appropriate settings?

tia

[Skiiwee29]

1st gen Ryzen has a weak memory controller and doesnt play well with 4x kits unfortunately without lots of tweaking to voltages. You can try upping your SOC Voltage from Auto to 1.1 or 1.15v and see if that helps. It did for me when I ran a 1800x daily. You're safe up to 1.2v on the SOC for 24/7 operations. 

[scriphy]

So I guess put my old memory back in, reset CMOS to get into bios, change the SOC voltage and then hope that the new stick boots to that?

[Skiiwee29]

9 minutes ago, scriphy said:

So I guess put my old memory back in, reset CMOS to get into bios, change the SOC voltage and then hope that the new stick boots to that?

Shouldn't need to clear CMOS, but won't hurt. Generally, when a motherboard detects a change like new RAM or CPU, it should auto reset the BIOS itself.