5 ms·

The flirc case is a giant heat capacitor, not a heat sink. Notice that it has the only temperature curve where the temperature does not go back to baseline aft

by ohazi 6y ago

The flirc case is a giant heat capacitor, not a heat sink. Notice that it has the only temperature curve where the temperature does not go back to baseline after the stress test. It needs a lot longer to get to equilibrium, and the final temperature is almost certainly hotter than what's shown on the graph.

dannyw 6y ago
exactly. For passive heat sinks, you need big surface areas. The FLIR case doesn’t do that and is arguably one of the worst options esp considering its price.
- zeckalpha 6y ago
  $16?
rcarmo 6y ago
I have been running one for a few months, and it does get consistently warm, but does not throttle the CPU (at least for my workloads). Will be setting up a second one as a “workstation” soon.
GloriousKoji 6y ago
There's still a good increase in surface area for convection it's definitely a heatsink. The graph does a poor job showing this but the start and stop idle time is 5 minutes. That's a good amount of time for temperature to settle.
elcomet 6y ago
You can additionally stick a cpu heatsink on it (like prop. 2 in this article). This will help dissipate heat from the case. But overall, this case is still better than bare pi, or regular plastic case (the heat capacitor has much larger surface than the cpu of the pi).
smichel17 6y ago
I own one. To some extent you're right. My pi runs mpd and pi-hole at all times and under that relatively low load, the case is constantly warm to the touch. But it has enough surface area that I've never been worried about overheating. Refer to TFA -- a tiny little heat sink on the cpu was all that was need to keep from throttling. I don't have the hardware to give a proper surface temp reading. I can measure the pi's reported temperature / test for throttling under extended load later, but for now: I stuck an "instant"-read thermometer intended for cooking into one of the usb ports, which was the hottest place I could find on the case. It measures 36.1°, compared to an ambient temp of 23.4°.

by ohazi 6y ago

dannyw 6y ago

exactly. For passive heat sinks, you need big surface areas. The FLIR case doesn’t do that and is arguably one of the worst options esp considering its price.

zeckalpha 6y ago
$16?

rcarmo 6y ago

I have been running one for a few months, and it does get consistently warm, but does not throttle the CPU (at least for my workloads). Will be setting up a second one as a “workstation” soon.

GloriousKoji 6y ago

There's still a good increase in surface area for convection it's definitely a heatsink. The graph does a poor job showing this but the start and stop idle time is 5 minutes. That's a good amount of time for temperature to settle.

elcomet 6y ago

You can additionally stick a cpu heatsink on it (like prop. 2 in this article). This will help dissipate heat from the case. But overall, this case is still better than bare pi, or regular plastic case (the heat capacitor has much larger surface than the cpu of the pi).

smichel17 6y ago

I own one. To some extent you're right. My pi runs mpd and pi-hole at all times and under that relatively low load, the case is constantly warm to the touch. But it has enough surface area that I've never been worried about overheating. Refer to TFA -- a tiny little heat sink on the cpu was all that was need to keep from throttling. I don't have the hardware to give a proper surface temp reading. I can measure the pi's reported temperature / test for throttling under extended load later, but for now: I stuck an "instant"-read thermometer intended for cooking into one of the usb ports, which was the hottest place I could find on the case. It measures 36.1°, compared to an ambient temp of 23.4°.