Stacking Components on Top of Hopper?

It's not logging temperatures when it's off though ;)

If it records temps immediately after boot-up, yeah, they'd be fairly low, but then ALL of us would have a very low "low" temp reading.
No, it logs a rolling 2-week window of temps (somewhere around 2 weeks). So if the machine hadn't been off for any significant period of time within the last few weeks, then the low temp would not reflect initial boot-up temp.