I use a PicoPSU-like solution with a 120W external adapter. Sometimes the i5-9400F PC consumes up to 96W. I feel uncomfortable about it and decide to lower power consumption by setting a new turbo frequency limit.
The Ubuntu 20.04LTS running on my i5-9400F and nVIDIA GT720 won’t wake up from suspend mode. It’s related to the proprietary driver nvidia-driver-470. Disabling nvidia-suspend solves this issue but the authentication dialog will pop up twice from suspend every time.
$sudo systemctl disable nvidia-suspend
To check if these related services are still running:
I bought two smart bands to monitor sleep and heart rate. It’s interesting to know which sensor is usedI bought two smart bands to monitor sleep and heart rate. It’s interesting to know the sensors and medical theories behind them.
After using them for more than 10 months, I realize alarms, timers, sleep, and exercise trackers are the most frequently used features to me. The latter two are good at recording durations but not accurate on sleep stages and heart rate. I also found the gyroscope helps to detect motions more precisely than a single accelerometer.
In conclusion, smart bands are good at time management but not heart rate or sleep stages. The sensors and theories are not as accurate to medical equipment.
Because the i5-9400F consumes 80W at-wall while loading 300 tabs in Chrome, which is a huge jump from 30W at idle, I want to know if it is safe using the only 4-pin CPU power connector on Gigabyte H310M S2V 2.0 (rev. 1.0).