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On battery the laptop will shut down and dim display to conserve battery, by tapping any key or touchpad it should come to life. That said, Open Control Panel, Power, Advanced Power settings, Change to High Performance, monitor shut down to never on AC , Select/Adjust advanced power settings to your preference.
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Hold down the on button until the screen goes black. wait two min, then turn it back on. If that doesn't work, try connecting your device to your computer and go online to the manufacture website. Most have a way to check your device and fix/update it.
Can you try the screen in another computer? I beleave the screen goes into power saveing mode when there is no input signal, thats what both my screens do.
There are a few things you need to check here. 1. It could be that your computer power management is set to turn your monitor and harddrive off after 30 to 45 min.
If the computer is however working for 30 to 45 min while you doing stuff and it shuts off, the there is an internal problem "Hardware"
I would suggest you check to see if the power management is set to turn off monitor 30 min and harddrive after 45 min. IF that is not so, then we go on to the next test.
It could possibly be your processor fan is not working so once your processor gets over heated it shuts off the computer.
Turn off the computer, remove the case "this is only if you know what you are doing" with the case off, power on the computer and see if the processor fan is working.
You can get back to me and I can walk you through it.
you need to replace the power supply. The fan sound is the fan for the power supply and not the computer. for cheap parts or used goto headgap's. They know what you need and probably even help you replace it yourself.
This is probably a back light problem. Take a bright flashlight and while the monitor is on, point it at the LCD and try different angles, etc. If you can see an image, it is the back light, probably the back light voltage converter unit in the lcd. It could also be the back light bulbs.
If you don't see an image with the flash light, then it could be the main logic board.
You need to put the device into "recovery mode" before you run the tool.
- Turn the device off (hold power for 20 seconds) - Slide the hold switch into "hold" position. - Press and hold the "record" button while connecting it to your computer. Keep holding the "record" button until you see the "new hardware found" on your computer.
Then run the recovery tool. Select format when prompted.
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