wshealy
Full Member
Posts: 187
Raspberry Pi: Yes
|
Post by wshealy on May 1, 2021 22:45:38 GMT -8
With fan and heat sink my Pi 4 is running at 45c. After running 24/7 my USB 3 ports with my cheap SanDisk plastic SSD Ultra Fit are very hot, like burn you, to touch. SanDisk has said they are only for Mac/Windows which are never got hot. Can I really have melted down 2 drives in a week? They have two read-only states one when you scramble file system that can be reset and one current read-only that can't be reset. Maybe to prevent melt down. Any feedback? I'm pretty good about shutdown unless the thing is frozen up. I was surprised how hot the usb3 port got.
W
|
|
dow4hurst
Full Member
SkyWeather2 Newbie
Posts: 117
|
Post by dow4hurst on May 2, 2021 0:15:14 GMT -8
Wallace, Got curious about this issue and did a quick web search. forums.sandisk.com/t/ultra-fit-usb-3-0-excessive-heat/33099/21 shows that several people are reporting this problem on multiple computers/OS combinations. Seems maybe it is a design flaw. Edit: I found this relatively new post on the subject of drive type and performance where the heat issue was actually measured. www.jeffgeerling.com/blog/2020/fastest-usb-storage-options-raspberry-piI was surprised that either a traditional SD card or a NVME were the better values depending on the use case of the pi, rather than USB flash drives, except for one USB drive. The guy took a thermal reading and got 140F on the surface of the Ultra Fit. His conclusion was the tiny metal body had insufficient area to dissipate the heat. Dow |
|
dow4hurst
Full Member
SkyWeather2 Newbie
Posts: 117
|
Post by dow4hurst on May 2, 2021 0:48:25 GMT -8
Wallace,
I'd be curious if the Sandisk card is inserted but not mounted, does it cool down?
You can try adding in the "noatime" and "commit" options in the /etc/fstab file for that filesystem to see if that reduces writes.
Dow
|
|
