Q1. Will the Alu case affect the WIFI?
A: As our test, 2.4G WIFI AP was usable. But different Raspberry Pi individuals have different degrees of WIFI interference. As well as aluminum alloy case will interfere with pi 4’s WIFI to a certain extent. 2.4G WIFI maybe unstable. So it is strongly recommend to use Ethernet or 5G AP. Refer to 5G WiFi test video: youtu.be/LKJVIBQFYXs
Q2: What is the thickness of a 2.5" HDD/SSD that can be accommodated?
A: The thickness of 2.5" HDD/SSD on the market is generally 7mm, 9.5mm, 12.5 and 15mm，You only can choose 7mm or 9.5mm thickness HDD/SSD, NASPi is not compatible with 12.5mm and 15mm thickness 2.5" HDD/SSD.The thickness of 2.5" HDD/SSD should not exceed 9.8mm. In fact, most 2.5" HDD/SSD on the market are only 7mm thick.
Q3: Is it OK to use wirless keyboard or mouse?
A: According to our test, it is OK to use the keyboard and mouse. Refer to video: youtu.be/LKJVIBQFYXs, we use the wireless logitech K520 keyboard and mouse.
Q4: How to find and use the Raspberry Pi 4 5G AP?
A: Please refer to here follow the steps: wiki.geekworm.com/Raspberry_pi_4_can%27t_find_5ghz_wifi
Q5: How to make the PWM cooling fan running?
A: You will need to install the shell script to make the cooling fan run, please refer to: wiki.geekworm.com/X-C1_Software
We can manually run the following commands:
sudo python /home/pi/x-c1/x-c1_pwm_fan_control.pyamp;
Then the pwm fan will start working.
Q6: How to adjust the PWM fan speed to get better heat dissipation?
A: You can modify the x-c1_pwm_fan_control.py file if value to adjust the speed of PWM fan. Range of value: 0 ~ 100 0: fan stop 100: fan is full speed.
Refer to photo: wiki.geekworm.com/File:Adjust-fan-fan.png
Q7: How to make the PWM cooling fan always running if you use the third party system?
A: The PWM cooling fan is 3pin with yellow, black and red wire, you just need to pull out or cut the yellow wire to make the cooling fan always running.
Q8: Is the PWM cooling fan heat dissipation enough for the NASPi kit?
A: According to our test, based on Raspberry Pi4 2GB, OS is 2021-05-07-raspios-buster-armhf.img, program running time exceeds 30 minutes. The 4 CPU cores are running at full load, the maximum temperature of the CPU core does not exceed 75 degrees, and the surface of the shell does not generate heat, which meets the design requirements.
Q9: What is the read/write performance when used as a NAS?
A: The read and write performance is determined by the speed of the Raspberry Pi’s USB 3 bus and SSD. It should be noted that the Raspberry Pi’s USB3 bandwidth is only 3Gbps. Normally, the R/W speed is about 300MB/S.