A computer uses sleep mode to save power and save certain
key functions so that users can resume work quickly without waiting for the
computer to completely restart.
There are usually at least two types of sleep modes: an
ordinary mode in which the current state of the computer is kept operational,
and a deeper hibernation in which current settings are saved to the hard drive.
When a computer does not leave the sleep mode, there is most
likely a problem with power settings.
Power Button Use
Some sleep modes, especially the hibernation modes, remove
the ability for the computer to sense outside movement.
If the user puts the computer into hibernation, then typing
on the keyboard or moving the mouse will not wake it, even if these actions
work in a light sleep mode.
The only way to wake the computer up is to press the power
Computers have power settings that tell them when to
perform certain actions, including powering down and going into sleep mode.
Normally, computers will do this automatically when they
have low battery power, but if the settings are changed it is possible the
computer will only exit sleep mode when connected to a power adapter.
Users can change power settings themselves to more
appropriate levels, if necessary.
In BIOS (basic input/output system) mode, a PC shows not
only the last actions that triggered the computer to go into sleep mode, but also
what wakes the computer up from sleep mode.
Typically several devices, including keyboard and mouse
movement, are listed.
However, if the computer is not programmed to wake up from
sleep mode when these devices are used, it will stay unchanged. Users can add
or remove devices from the BIOS system itself.
Microsoft Vista has been known to develop several errors
associated with the ability of the computer to wake up once it has gone into
If the user has Vista, it is possible an internal error,
possibly connected with the USB ports, has caused the computer to remain in
Users can fix these malfunctions by downloading
"hotfixes" from Microsoft's website.
Video Card or Screen Problems
If the monitor refuses to wake up from sleep mode but all
settings appear applicable, then the problem could be with the video card or
the screen itself.
In this case, the computer is resuming activity but the
monitor cannot show it, so it looks like it is still asleep.
The user should make sure the monitor is working properly
and make sure the video card is not malfunctioning.
You should also check ram Hard Drive
& vga lead
WARNING: Before you start troubleshooting remember that you
are dealing with electricity that can KILL.
Test all power and data leads that attach to your hard drive
the leads from your (motherboard to your hard drive) make
sure they have secure dust free connections and are not faulty
if its a 40 pin flat ribbon type it will be the first to
make sure all leads that are attached to your drives dvd\cd
and floppy have secure connections and are not faulty
even something as small as a faulty electrical fan and its
lead can cause you problems
computers need all power and data to continue through every
working device and to have an end so any faulty leads will end up with a
Check your RAM.
The RAM is located in the middle of the
There are tabs that you can push to release the
Remove it and put it back in place until the tabs
Loose RAM can cause your computer not to start
properly where you want to see a video signal.
Remove the memory modules from their slots.
Take the opportunity to clean the
slots on the motherboards and the memory module connectors.
Use compressed air to blow dust away and clean contacts with
a soft cloth.
Do not use a metallic vacuum cleaner if it touches any
component it may create a short and cause damage to the motherboard or other
Do not use solvent that may attract
dust and never poke things like cotton buds in to slots.
rub an alcohol (Methylated Spirits) on a cloth not to hard let the alcohol do
the work on the copper gold or silver tabs and r
Allow the pins to dry.
They will air dry in a matter of minutes.
Make sure your graphics card is securely seated with no dust
built up or in the socket
if you remove your graphics check the socket to make sure its
Restart your computer then reinstall it this should activate
found new hardware wizard
Check the vga lead for secure dust free connection or try
another vga lead.