<div>
here my laptop troubleshooting guide, i hope it helps you :<br />
- remove all external devices<br />
-you can disable devices from BIOS to test (sound, lan, etc..)<br />
- if no display - test with an external monitor<br />
- test if it runs from battery alone, or from AC alone<br />
- test also with a known good battery !<br />
***some laptops have a reset button - if you have one use it!<br />
- remove battery and AC adaptor, hold power button for 20 sec, connect AC and reboot --&gt; any display ? if NO --&gt;<br />
- disconnect all disk and cd drives, battery , and other cards and peripherals, leave only 1 ram stick<br />
- boot --&gt;any display ?<br />
-if you can access the bios battery, remove the battery, AC, and bios battery for a minute to reset the bios<br />
or test it, it should read 3 V<br />
*** you can test the disk on another pc, if you like !<br />
<br />
===&gt;&gt;you can test if the mobo works outside the casing, connected to power and external video &nbsp;!
</div>


here my laptop troubleshooting guide, i hope it helps you :
- remove all external devices
-you can disable devices from BIOS to test (sound, lan, etc..)
- if no display - test with an external monitor
- test if it runs from battery alone, or from AC alone
- test also with a known good battery !
***some laptops have a reset button - if you have one use it!
- remove battery and AC adaptor, hold power button for 20 sec, connect AC and reboot --> any display ? if NO -->
- disconnect all disk and cd drives, battery , and other cards and peripherals, leave only 1 ram stick
- boot -->any display ?
-if you can access the bios battery, remove the battery, AC, and bios battery for a minute to reset the bios
or test it, it should read 3 V
*** you can test the disk on another pc, if you like !

===>>you can test if the mobo works outside the casing, connected to power and external video  !

<div>
What options do you have if you press F8 while it's booting.<br />
You may have to repeat pressing F8 while booting.
</div>


What options do you have if you press F8 while it's booting.
You may have to repeat pressing F8 while booting.

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<div class="content wysiwyg-content">
Hello,<br />
<br />
I have a Compaq Presario CQ62-220US notebook.<br />
<br />
When I press the power button, there is a black screen, F12 key is orange and the caps key blinks. No messages or anything on screen.<br />
<br />
What is going on??<br />
<br />
thanks
</div>
</div>


Hello,

I have a Compaq Presario CQ62-220US notebook.

When I press the power button, there is a black screen, F12 key is orange and the caps key blinks. No messages or anything on screen.

What is going on??

thanks

compaq presario cq62 not boot

A laptop or notebook is a portable personal computer with a clamshell form factor, suitable for mobile use. Although originally there was a distinction between laptops and notebooks, the former being bigger and heavier than the latter, there is often no longer any difference. Laptops are commonly used in a variety of settings, such as at work, in education, and for personal multimedia. A laptop combines the components, inputs, outputs and capabilities of a desktop computer, including the display screen, speakers, a keyboard, and pointing devices (such as a touchpad or trackpad) into a single unit. The device can be powered either from a rechargeable battery or by mains electricity from an AC adapter.

Laptops Notebooks

A monitor or a display is an electronic visual display for computers, usually comprised of the display device, circuitry, casing, and power supply. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) thin panel, while older monitors used a cathode ray tube (CRT) about as deep as the screen size. They are connected to the computer via VGA, DVI, DisplayPort, Thunderbolt, LVDS or other proprietary connectors and signals.