Replies: 8 comments
-
|
OK .. so lets stick to the ShimFan for now. Thanks. |
Beta Was this translation helpful? Give feedback.
-
|
Thermal photo: Notice the heat sink on the Rpi4 on top is about 111F ~ 40C (the scale is the color on the left hand side, white being the hottest) Hopefully someone has the time/resources to run a better comparison. This is a real swag, but thought it interesting to post.
|
Beta Was this translation helpful? Give feedback.
-
|
From TG: |
Beta Was this translation helpful? Give feedback.
-
|
Heatsink cases don`t seem to be viable solution without a fan, but listing them anyway:
|
Beta Was this translation helpful? Give feedback.
-
|
@openoms hello, I would like to know if you have tried the heatsink with fan, like the one show in the pics of Aliexpress... I would like to buy one in amazon to give a try, but I don't know if then will make problem as the Pimoroni shim fan. Thank you |
Beta Was this translation helpful? Give feedback.
-
|
@amcitaly. The shimfan has an extra PCB causing problems, other fans needing only power won't have that. The problem with the heatsink-case-with-fan is that it is blocking the pins needed by the LCD, but you might be able find a screen with power pins and test with that. See: #1006 (comment) |
Beta Was this translation helpful? Give feedback.
-
|
@amcitaly I am testing the heatsink-case-WITHOUT-fan at the moment ... during self-validation of the blockchain I get up to 77.4 Celsius with a 68 Celsius average .. so it gets very hot - but it looks like I will get thru the complete self-validation within 3 days - what is not bad and maybe an acceptable slowdown. Maybe this can even be optimized by placing distance holders between SSD & Pi-Heatcase. I have to see how it compares with a active fan once it is fully synced and CPU is running not that 100% ... but so far at least I can say that the heat-sink-case (without fan) can be used as an temporarly replacement for the shim fan. |
Beta Was this translation helpful? Give feedback.
-
|
@rootzoll Thank you, in fact I have always used the heatsink case without fan on the Rpi3 and was good, it was my ultimately case, not attached to the HDD but separated. I want to buy the new one for the Rpi4 on Pimoroni (I just waiting the colored blue or violet and now they are out of stock : ) 3 days of validation is ok, with my Rpi3 on torrent it took more or less one week to fully sync, and maybe once the blockchain is validated it will get even cooler. |
Beta Was this translation helpful? Give feedback.
-
Starting with this comment: #796 (comment)
I wanted to test some heatsinks to achieve a no-moving parts setup for the RPi4.
Having no good experience so far with this model (without a fan): https://www.aliexpress.com/item/33046089229.html
Managed to drive up the temperature to 80 degrees and rising when running the hardware test for 5 mins.
The thermal connection of the heatsink case was a bit questionable due to the supplied pads being just too thin. During the test they proved to work as the whole blob of aluminium got hot. The LCD screen is sitting just on top, that I found worrying at >80 degrees so stopped.
A heatsink with fans would be a option (fan could be connected to the pins of an LCD-with-power-pins), but it has the drawback of being always on, most of the time unnecessarily.
In my opinion the RPi4 still needs active cooling during high power tasks like the Initial Block Download. For this the Shim Fan perfect because can automatically switch on for higher temperatures and sit silent when within a comfortable threshold (I have set <70 degrees - completely arbitrarily, just because it is sitting silent on my desk during the day-to-day operation)
Beta Was this translation helpful? Give feedback.
All reactions