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CyberPower CPH420P 4-Port USB Hub Questions & Answers
4 port HUB is connected. My computer doesn't show
The hubs usually show up in the hardware list and not as a seperate device. Only way to know it is there is to plug a usb device into it.
I devised these simple steps that tend to remedy quite a few issues with most USB portable / external hard drives and devices (though not always)
A few things to check but assumes USB and Windows for other interfaces / operating systems similar steps may be adapted to suit.
1. Ensure it is connected directly to the computer to a USB 2.0 port not a USB 1.0 port as this can have effects on performance and reliability
2. Use only the cables that came with it NOT one that fits that may have been lying around or is longer. Not all USB cables are equal even though they should be)
3. Do not connect through an external USB HUB unless that hub is USB 2.0 AND has its own power supply.
4. Use ONLY the power supply that came with it if it has an external power supply Don’t use any other unless you know it has both the same voltage and current rating e.g. 12V 500mA anything rated below that would not work properly.
5. Always use the same port for connecting your devices. Some devices do not like being switched about. If switched they may want to install software / drivers again. This can be especialy true if you move a HUB to another port
If you checked and fixed anything there and still have issues then check your hardware from CONTROL PANEL / SYSTEM / HARDWARE.
Any exclamation marks by hardware need fixing before you investigate any further
Installing USB Hub
After installing the USB controller card into a PCI slot inside your computer, connect the 4 port hub to it with the supplied cable. (at the back of the computer)
Do not connect the DVD Recorder to the old usb ports. They will still work, but obviously not 2.0.
Connecting the power supply for the hub is optional, but usually a good idea.
If your computer still doesn't recognize the hub, make sure you have all of the latest windows updates and try running Add New Hardware in control panel. Also, just unplugging the hub and plugging it back in will sometimes work. Use a different port on the controller card if necessary.
As a last resort, you may need to disable the onboard usb controller through your system bios.
Good Luck
CyberPower UPS - unit fan does not work. Is the
It may not be dead yet. Does it supply output? You have not mentioned. It would be considered dead if it does not give any output. Is the battery fine? If the battery is fine and there is no output then it may be dead.
So, check the battery for any sign of life.
Check the output.
Check output with it plugged into mains.
If all are negative then it is dead.
300 watt manual
Your not asking the right question. The answer is dependent upon how long you want the backup to work. Does a battery fit in the unit or is it alone? If you were to connect a car battery to the unit it would run for many hours, say a motorcycle battery would run maybe an hour. It is all about the time you want for run time.
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