“Doesn't fit as advertised. Purchased a new 2GB Pi 4 with this heatsink. This photo shows it mounted with the long side parallel to the GPIO connector. The heatsink won't lay flat against the processor this way - it doesn't fit between the display connector and camera connector (too wide). I rotated it 90 degrees and it fits that way. Unfortunately, because the heatsink is mounted off-center if there's any pressure applied to the edge near the power connector, the heatsink tilts and falls off. Hmmm... not so good.”
“Not a good mechanical fit, sloppy application of double sided tape* at the bottom of the heatsink and generally not the quality you would expect from Pimoroni. Better off looking for an alternative as this is clearly a last minute addition to the catalogue that didn't go through much testing at all.
* 3M 9448A: Not rated for thermal transfer applications, check datasheet.”
“Doesn't sit well on the Pi 4. The edge runs along the gpio so not ideal for using hats. I assumed that it would have a thermal pad covering the ram chip too. Ended up using a smaller heat sink in the end. Not the end of the world though!”
“This heat sink is insufficient for my new Raspberry Pi 4 which seems to thermal throttle more or less all the time in a PiBow Coupe 4 case. The heatsink is also very hot to the touch.
Taking the Pi4 out of the coupe case helped a little in that it's not actually throttling at idle.
Pretty disappointed. Can I put a fan shim with this and a PiBox 4 case?”
