Yes, it is possible to use three sticks of memory.
Yes, it is possible to use three sticks of memory.
I discovered a used DDR3 8GB memory stick in an older build and am checking if it fits your family computer. It already contains two 2GB and four 4GB DDR3 modules, so it’s likely compatible.
It will function, though it remains in dual channel unless you're using a system like x58 that supports triple channel or any platform that backs quad channel RAM after x58.
It works if everything matches—same speed, size, and DDR3 in the correct slot. If it fails, you’ll loop through the boot process. I wouldn’t try this on a personal computer without asking.
For those unfamiliar with configuring the BIOS, it's best to avoid making changes. Ideally, run it with 8 GB per channel and ensure the computer is unplugged before handling any parts. Keep it running with its default settings if it starts up. If it fails to boot, remove any extra RAM and return components to their original positions.