If you’re hard drive does not do anything at all when you power it up – No noise or vibration, it is almost certainly a Circuit Board problem. Luckily of all the different problems that could befall your hard drive; with this issue there is a pretty good chance that your drive could be fixed.
Image courtesy of WD
There are normally 2 main causes for a hard drive to totally die, either a small diode (TVS) has blown up or some other component on the board has failed.
Most circuit boards have two TVS diodes (one for the 5V and one for the 12V incoming power) to protect your drive in the case of a power surge. You can check to see if the TVS diode has gone by checking it with a meter, if it reads around 0 ohms (e.g. an open circuit), is discoloured and or smells it is likely to be the diode. So just remove it from the board and hopefully your drive will come back to life.
If the diodes look ok and they read correct on your meter then something else on the board has gone poof and you will need to change to whole board. If your hard drive is old you can have a look on Ebay and buy a matching drive and swap the main circuit board, Unfortunately if it is a newer drive the circuit board will have a small IC (computer chip) with a unique code embedded in it, without that code your drive will not work. So you can’t just find a replacement circuit board and swap it over.
You will need to look on your current board and find the 8 way IC, this will need to be moved to your replacement board, you can do this yourself or have a chat with your IT company and they should be able to do this for you.
If your hard disk is a WD (Western Digital) you have a problem, their code is hidden within the main processor and this is very difficult for even a professional to remove.
For more Tutorials and Hints & Tips check our Hints and Tips section.
If you would like help with your Device, Computer or Laptop then please contact us or visit our IT Support Page.
Below are all the default usernames and passwords for Xerox devices; Often default passwords are needed either when you try to access a new device you have just purchased or if you have had to do a factory reset after a failed bios update or perhaps you have forgotten the user name and or password you created for your device.
Default Admin Password
The problem is more often or not when you actually need to dig out the paperwork that came with the device you purchased 5 years ago you find it has gone walkie s. That is where the list below comes in it shows all the passwords and usernames for each model, even if your device is not mentioned as its a newer model or a new type of device by the manufacturer you should be able to see a pattern to guess the likely default password.
Below are all the default usernames and passwords for Davox devices; Often default passwords are needed either when you try to access a new device you have just purchased or if you have had to do a factory reset after a failed bios update or perhaps you have forgotten the user name and or password you created for your device.
Default Admin Password
The problem is more often or not when you actually need to dig out the paperwork that came with the device you purchased 5 years ago you find it has gone walkie s. That is where the list below comes in it shows all the passwords and usernames for each model, even if your device is not mentioned as its a newer model or a new type of device by the manufacturer you should be able to see a pattern to guess the likely default password.
Below are all the default usernames and passwords for APC devices; Often default passwords are needed either when you try to access a new device you have just purchased or if you have had to do a factory reset after a failed bios update or perhaps you have forgotten the user name and or password you created for your device.
Default Admin Password
The problem is more often or not when you actually need to dig out the paperwork that came with the device you purchased 5 years ago you find it has gone walkie s. That is where the list below comes in it shows all the passwords and usernames for each model, even if your device is not mentioned as its a newer model or a new type of device by the manufacturer you should be able to see a pattern to guess the likely default password.
Below are all the default usernames and passwords for Toshiba devices; Often default passwords are needed either when you try to access a new device you have just purchased or if you have had to do a factory reset after a failed bios update or perhaps you have forgotten the user name and or password you created for your device.
Default Admin Password
The problem is more often or not when you actually need to dig out the paperwork that came with the device you purchased 5 years ago you find it has gone walkie s. That is where the list below comes in it shows all the passwords and usernames for each model, even if your device is not mentioned as its a newer model or a new type of device by the manufacturer you should be able to see a pattern to guess the likely default password.
Looking for information on how to turn your raspberry pi on or off? Check out the information below.
Turn on your PI
The Raspberry Pi does not have an on or off switch all you need to do is plug it on and apply power!
Turn off your PI
To turn off your PI you should shut down your operating system first before removing the power lead Otherwise it could corrupt your software. If you are running a linux operating system either click the shutdown button or open the terminal and then type in sudo halt -h
When all the LEDS have gone off (bar the green) you can remove your power lead.
Below are all the default usernames and passwords for U.S. Robotics devices; Often default passwords are needed either when you try to access a new device you have just purchased or if you have had to do a factory reset after a failed bios update or perhaps you have forgotten the user name and or password you created for your device.
Default Admin Password
The problem is more often or not when you actually need to dig out the paperwork that came with the device you purchased 5 years ago you find it has gone walkie s. That is where the list below comes in it shows all the passwords and usernames for each model, even if your device is not mentioned as its a newer model or a new type of device by the manufacturer you should be able to see a pattern to guess the likely default password.
Below are all the default usernames and passwords for Westell devices; Often default passwords are needed either when you try to access a new device you have just purchased or if you have had to do a factory reset after a failed bios update or perhaps you have forgotten the user name and or password you created for your device.
Default Admin Password
The problem is more often or not when you actually need to dig out the paperwork that came with the device you purchased 5 years ago you find it has gone walkie s. That is where the list below comes in it shows all the passwords and usernames for each model, even if your device is not mentioned as its a newer model or a new type of device by the manufacturer you should be able to see a pattern to guess the likely default password.
We have customers all over the world, but our onsite work is centred on the south east of the UK, specifically - London, Berkshire, Surrey, Hampshire,Guildford, Camberley, Woking, Windsor, Ascot & Sunningdale.
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