Can I update my OS?

[thelittledevil]

I'm running El Capitan right now but I'm not sure if I can update it to a newer version with my motherboard or my graphic card. Any ideas?

 

[Bustycat]

Your build can support up to macOS 11 Big Sur. You should try with a separate drive first.

 

[Jamesbond007]

I'm running El Capitan right now but I'm not sure if I can update it to a newer version with my motherboard or my graphic card. Any ideas?

Well, you can. Your graphics card (GTX 660) should still work in later MacOS versions but beware that it may cause graphics glitches in High Sierra and later.

You may consider removing your graphics card and just use CPU integrated graphics to run later versions of MacOS like Catalina and Big Sur.