You're asking if combining your existing 8GB 2400 MHz stick with a new 8GB 3200 MHz stick would provide dual-channel capability. You also want to know if you can switch to a higher speed later.
You're asking if combining your existing 8GB 2400 MHz stick with a new 8GB 3200 MHz stick would provide dual-channel capability. You also want to know if you can switch to a higher speed later.