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オリジナル投稿者: Dan A+ ,

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If your power LED light is coming on, then your power supply is working.

But if nothing is showing up on your screen, here are a few fixes you can try:

# '''Check your computer’s brightness settings.''' Are they turned all the way up?
# '''Check for beeps or error messages.''' These codes may contain clues as to what’s wrong.
# '''Check your hardware.'''  Are all the cables inside the computer secure? Is your video card in the slot securely? Is the RAM that you added in the slot securely? Try re-seating all your RAM, cards, and cables.
# '''The problem may be your software.''' If the screen is blank because there is a problem with Windows itself, you may need to reformat your hard drive and reinstall Windows.

If these fixes don’t work, please tell us what was happening before the problem occurred that may have caused it. Maybe some background information can help us help you better.

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