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==FAQ==
Q0. The SSD cannot start or is very slow
A： If you have a Raspberry Pi 4 and are getting bad speeds transferring data to/from USB3.0 SSDs, read this https://www.raspberrypi.org/forums/viewtopic.php?t=245931
Q1. Will the Alu case affect the WIFI?
A: There is nothing reliable than wired Ethernet, so it's better to use it.
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. So it is strongly recommend to use Ethernet or 5G AP. You can refer to video test of 5G WIFI AP: https://youtu.be/LKJVIBQFYXs
Q2: <span style="color:red;">What is the thickness of a 2.5" HDD/SSD that can be accommodated?</span>
A: The thickness of 2.5" HDD/SSD on the market is generally 7mm, 9.5mm, 12.5 and 15mm，You only can choose <span style="color:red;">7mm or 9.5mm</span> 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: 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:
[[X-C1_Software]]
We can manually run the following commands:
sudo python /home/pi/x-c1/fan-rpi.py &
or
sudo python3 /home/pi/x-c1/fan-rpi.py &
Then the pwm fan will start working.
Q4: <span style="color:red;">How to find and use the Raspberry Pi 4 5G wifi?</span>
A: Please refer to: [[Raspberry pi 4 can't find 5ghz wifi]]
Q5: Does the PWM cooling fan running or not?
A:
* 1. The fan is very silent, and it is not easy to hear the sound of the fan;
* 2. The fan is a PWM fan which dynamically adjusts the speed according to the temperature of the CPU. If the temperature of the CPU is low, the speed of the fan is extremely low, and it is not easy to hear the sound of the fan;
* 3. Only when the CPU temperature reaches 65 degrees or more, the fan will run at full speed, and you may be able to hear the sound of the fan;
* 4. The fan is controlled by the PWM signal. The fan will only run after the ‘python /home/pi/x-c1/fan.py&’ command runs successfully; you can run the following command to check whether the fan is running; sudo jobs
Q6: 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.
Q7: Does the NASPi support PoE?
A: According to the customer feedback(based on 2021-05-07-raspios-buster-arm64-lite), the NASPi is OK to use with PoE splitter, but make sure to use high quality PoE splitter, or the power maybe not enough to power the NASPi kit.
Q9: Can the PWM fan in NASPi be replaced by other fan like noctua 5v 40mm 3-pin pwm fan?
A:Please refer to the below photo of the fan port interface definition of X-C1 adapter:
* red cable = 5V
* black cable = GND
* yellow cable = for PWM signal
[[File:X-C1-fan-Port.png|500px|X-C1 Fan]]
Q10: Does the NASPi support SATA III?
A: Yes, it support SATA III, also support SATA I, SATA II.
Q11: What to do if HDD/SSD is not recognized?
A: Please refer to [[How to View/Partition/Format/Mount HDD/SSD]]
Q12: Does the NASPi support add RTC module?
A: Sorry, no, the NASPi does not support add RTC module.
Q13: How to enable fan temperature control?
A: This setting is based on the latest Raspberry Pi OS ONLY.
Run the command: '''sudo raspi-config''' and navigate to Performance Options to set the Fan Temperature. The fan speed is not adjustable.
[[File:PWM-Fan-01.jpg|500px|none|PWM Fan]] [[File:PWM-Fan-02.jpg|500px|none|PWM Fan]]
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