Ddr3 Vs Ddr3 Low Voltage

Hi guys so i have been using 2 ram sticks of 4gb with the total of 8gb one is pc3-10700 667mhz,1.5v and the other is pc3-12800 800mhz,1.35v and together they are both running at 1333 dual channel and i got all this information from cpu-z and bios respectively. So my question is,is it okay to run them together or should i change the other one and get same stick as the first one because of voltage and frequency difference? I bought them used and i have been using them both together for 2 weeks without any issues but i dont want to damage any components of my pc like cpu or gpu so what should i do? Any help would be appreciated and sorry for long question.

Bing translator for mac. Translate Web Pages: You can translate web pages into over 60 languages - directly in your browser even if you are not using the Translator add-in on Edge. • Enter a web page address or copy/paste a URL into the box on the left.