Question about Compaq (243890-001) 250-Watt Power Supply
There wouldn't be anything from the PSU giving power to your keyboard and mouse. The mobo handles that unless your giving your mobo the wrong amount it needs which might be why your P2P and USB arn't working. Although it is odd that your mouse isn't working with P2P as that requires less power.
Posted on Oct 23, 2008
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Posted on Jan 02, 2017
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Sep 07, 2011 | NZXT Computers & Internet
restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer
click start control panel administrive tools computer management device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X
you will need to update/reinstall drivers
right click to reinstall drivers
if you can see your usb drive but its not working
ports(com&lpt)right click update driver if this fails to fix the problem
check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems for a computer and its parts
hope this helps you
Aug 28, 2011 | HP Computers & Internet
One bad lead can cause a computer to continue on a cycle or
to shutdown or fail to detect/ boot up a computer hard drive
Test all leads that attach to your hard drive including
the leads from your
"((motherboard to your hard drive))" make sure they have a secure connection and
are not faulty or just replace them they could be faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they could be faulty a computer needs its connections to continue its cycle and have an end so any faulty leads will end up with a computer error
try blowing out all of the dust from your keyboard using a fine air blower from an air compressor making VERY sure there is no MOISTURE in the lines.
dust causes static which causes lots of problems with a computer and its parts
click start control panel keyboard hardware then properties you should see driver details,you will have options to update driver,roll back driver,uninstall
make sure you have the driver for the keyboard before uninstalling the driver
make sure the lead is good and has a secure connection diconnect the keyboard then reconnect it then reinstall the driver(if applicable)
make sure the usb device is inserted correctly into the usb port (if applicable)
hope this helps
as for the mouse
make sure the lead has a secure seating if applicable or the usb device
make sure the battery is good (has full charge)also you might test the usb device for the mouse is inserted correctly into the usb port (if applicable)
click start control panel mouse you should see 4 tabs buttons,pointers,pointer options also hardware under hardware you can troubleshoot or
select properties under driver you will have the options to update driver,rollback driver or uninstall and under hardware you can troubleshoot the device
hope this helps
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