Yeah, the Technical Support is for discussion about the Bitcoin client created by Satoshi. That's why other clients such as Electrum get moved to their own section. I imagine this is the reason it got changed from "Technical Support" to "Bitcoin Technical Support". You may be running a node on that notebook but, the primary topic is about power supplies and not discussion about the node itself.
Technical Support - Problems, issues with the Satoshi's Bitcoin client (bitcoin-qt, bitcoind). Issues with other clients should go to the Alternative clients board.
Unfortunately, there's no other section which it would fit in better.