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* First of all, we recommend you to get more FAQ information on the official website: [https://docs.pikvm.org/faq/ official FAQ], or check the following FAQ;
* You can post a issue ticket at [https://geekworm.com/community/forum/topic/78220/pikvm-faq Geekworm forum] or email to us (support@geekworm.com) and attached your installation pictures or videos to get some help.
* Blog sharing for reference: https://www.andysblog.de/kvm-over-ip-pikvm-als-bausatz
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Q1: Why PiKVM-A3/A4/A8 does not show the video only display No Signals?
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A:
# Please check the hardware connection. Double-check that the video capture device is connected correctly and tightly.
# Make sure you use the original HDMI port. If your desktop only has a VGA display port, there may be no video signal when you use <b>VGA to HDMI adapter</b>, and there is no way to solve this; However, you can try to lower the resolution and restart the PC to test, but the probability of success is very low.
# Change the HDMI cable to test.
# Test the X630 separately to check if there is HDMI output.
# Some laptops do not output any signal until you switch the output (usually via the FN + and an F5 key on the keyboard).
# Your computer maybe enter sleep mode, please exit sleep mode.
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Q2: How to do if PiKVM-A8 hangs up and has to be started manually?
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A. The PiKVM-A8 hardware itself does not cause the system to reboot, and Pikvm-A8 shield is controled by raspberry pi 4;
'''Please ensure these keys:'''
1. The [https://pikvm.org/download/ PiKVM OS version] is correct;
2. Check & use a high-quality power supply;
3. Whether the raspberry pi 4 temperature is too high;
4. Contact us via email to support@geekworm.com
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Q3. I want to control several pc power. Is it possible with one PiKVM-A8
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A: No, one PiKVM-A8 can only control one pc. Please refer to [[X680]] 4-port IP KVM Switch.
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Q4. How to login?
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A: Input the XX.XX.XX.XX ip address on the explorer, then input user: admin, the default password is 'admin' also.
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Q5. How to switch root user?
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A:
su root
#default password is root also
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Q6. Does KVM-A8 support passive heatsink such as (P165-A or P165-B etc) instead of fan?
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A: You can use the [[P165]] aluminium heatsink or the [[H402]] pure copper heatsink, but must remove the X630-A8 fan and fan connector.
[[File:IMG-2172.jpg|600px]]
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===Enable hdmi audio===
Refer to [[Enable pikvm hdmi audio]]
==References==