My compaq nc8000 when I turn it on the lights come on but the fan doesn't spin and the screen stays blank

SOURCE: Gamecube - blank screen, disc wont spin, power light and fan work.

Troubleshooting - Power

No Power
Make sure that the words "Nintendo GameCube" are molded into the AC adapter. Unlicensed products are not fully compatible and may not work correctly.
Make sure the Nintendo GameCube has good ventilation. For best results, make sure that the system rests on an open, flat surface. Avoid operating the Nintendo GameCube while it's on carpeting or inside an enclosed space.
Check the vents on the sides of the Nintendo GameCube for a build-up of dust. The system will shut down if it cannot vent properly to prevent overheating. If there is a build-up, remove it using a vaccum cleaner with a soft brush attachment.
Avoid the use of unlicensed products such as memory cards, controllers, and cheat devices. Some of these products are poorly manufactured and may result in damage to your system. If one of these products is attached to your system, remove it and try resetting the AC adaptor (see below).
Make sure that your wall outlet works. To check it, try plugging a lamp into the same outlet where your system was plugged in. Turn the lamp on the verify the outlet works. Also, make sure you are not using an outlet that is operated from a wall switch. If you do, make sure the wall switch is in the ON position.
Make sure the AC adapter is attached properly. Firmly plug your AC adapter into the back of the Nintendo GameCube (the port is labeled DC 12V IN) and into a working wall outlet.
Press the power button on the Nintendo GameCube and check to see that the red power light on the top of the Nintendo GameCube illuminates.
If this fails, try resetting the AC adapter.
Unplug/remove all accessories from the system (including game discs, memory cards, and all controllers), hookup cables, and the AC adapter from the outlet and Nintendo GameCube.
Let the system rest for about 45 seconds. While you're waiting, check to see that the cords on the controllers, AC adaptor, and Stereo AV cables/Component Video cables (or RF Switch) are not frayed or have exposed wires (this can cause the system to shut off); if so, you should replace those parts.
After the 45 seconds, Plug the AC Adapter into the system and wall outlet. Press the power button to see if the system works.

If the system works, turn the power off and plug ONE accessory into your system, then turn the system on to see if it still works. Repeat this process with ONE accessory at a time. If your system doesn't work once you put a particular accessory in (GameDisc, controller, Memory Card), there may be something defective with that accessory.
If the power does not come on, a repair will be necessary. Because it is not possible to determine which item (Control Deck or A/C Adapter) needs repair, please call our Consumer Service Department at 1-800-255-3700 to discuss available options.
If the power is continually shutting off after aprox. 30 minutes, listen to hear if the fan is working while the system is powered on. If the fan is not running, the problem will continue (Nintendo GameCube is avoiding overheating) and the system will need repair.

Power Light Flashes
If the power light flashes once when power button is pressed, then turns off and won't turn back on, the system needs repair.
Power Light Shuts Off
If the power shuts off during game play (even as much as 30 minutes after the system is turned on), then turns off and won't turn back on or the fan isn't working, the system needs repair.

SOURCE: compaq c500 blank screen, can heard hard drive running

You should replace the power supply, and clan out dust, and tighten connectors

SOURCE: HP compaq NC8000 Drivers

Hello,

You should be able to locate all of the HP NC8000 laptop drivers for Windows XP here:

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=364184&prodTypeId=321957&prodSeriesId=364182&swLang=8&taskId=135&swEnvOID=228

Hope this helps,

Chris

SOURCE: MY COMPAQ PRESARIO NOTEBOOK CQ50 100EM - DOES NOT

The issue might be with the hard drive. I recommend you to test the hard drive.
If the hard drive test fails, then it is confirmed that the issue is with the hard drive of your notebook.
Click on Testing a hard disk in HP notebooks in the below link to test your hard disk:
http://notebook-solutions.blogspot.com/2009/06/all-about-hard-disks-in-laptops.html
You may also try the steps in the below links:
http://h10025.www1.hp.com/ewfrf/wc/documentSubCategory?rule=23287&lc=en&dlc=en&cc=us&product=3752686
http://notebook-solutions.blogspot.com/2009/05/notebook-solutions-notebook-solutions.html
Follow the steps from No Boot or no Power in laptops

SOURCE: Acer aspire one, won't wake up from sleep mode, screen blank

I'm having the same problem, but I don't want to have to turn off my computer EVERY time it does this. (I have not been able to shut down the laptop normally because it goes into sleep every time.) I've heard that after 3 hours it builds up an eletrical charge and you have to take the battery out, but I havn't had it on for 3 hours at a time.