Sister doesn't want a new computer for free?

With my old CPU, GPU, and NVMe SSD, everything else would be new.

She didn’t reply to the text I sent last night. Well, that’ll save me $300 or so. Don’t really need money though.

That’s a good way not to get something for free, don’t say anything.

Yup, not responding means you don’t want it. I won’t say anything else about it to her. If she asks, I won’t respond. Or just say, “I decided to keep it.”.