My e521 screen is black & in power saver mode, can not acess any screen or do anything at all.

Try Reformat

Do you get a screen if you boot from the CD/DVD drive using the Windows installation CD/DVD disc. If not, you probably dis-lodged
a cable or plug when installing the drive.

Power saver modes on the monitor has several functions. First the power saver preserves the devices from consuming current while viewer is mometarily away. Screens that display power saver modes returns to regular viewer mode soon as the remote controls or buttons are manipulated slightly as indication of request to regualar views. The power saveer mode of the screen can be disabled. Obser ve the feature functions of the device iether on the remote controlof device buttons. Power savers perform simialr to screen savers or device feature manipulations. Access the devices settings or menu buttons to display the entire list to buttons for disactivation of power savers modes. Usually the power saver mode may be onsctruting viewer experiences for situation that momentary displays ate idleness requiring to retore to viwer display screen. Refer to the devices userguide to attain details.

Three possible causes of sleep mode. first, an extensive screensaver with password lock prevents display. A condition that is observable as a blankscreen also known as sleep mode. Second, a computer power saver settings that shutsdown during idleness. Third, An improper shut down of the computer would have caused a sleep mode to save the system data files.



Restoring the computer to regular functionalioty

First solving predictable sleep mode settings
1. A movement of mouse pointer across the screen should reestablish unprotected password modes
a. password protected sleep mode would display an promp message requiring key code soon after the mouse pointer has changed direction

sloving unpredictable sleep mode settings
1.A computer power saver, screen saver, or splash screen displays prevnting programs acess would require manually powering off the computer system.
a. A manual power back on of the system should restore to program functionality mode

important notes
1. contact expert technical assistance

Hi,

Its seems like your RAM is not working properly, so once you replace the this RAM and check it, you problem should be resolve.

Regards

Ashly

Hi my name is Eric,
I hope I can help you with your isue,
　Thats the way these dells are, the standby mode sometimes puts it in hibernation.
Check the settings in the screen saver/ power area
　
　
　
　
　
If I have helped you pleae click accept
we can till post until the post expires
Thanks
Eric

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

right click on your desktop.go to properties.in properties go to the screen saver tab.click on the screen saver tab.under the screen saver tab you will a tab called power.click on power.change you monitor settings there.let me know if it works

Dunno,if it hits the splash screen & quits or goes to black,then more than likely the hard drive is going bad. Doubt it's the power supply.

If the screen is breaking up into multiple screens, the video resolution isn't set correctly. Change the video properties back to the native resolution.

Right-click on an empty area of your desktop screen. Click on Properties at the bottom. Now click on the Settings tab.
The Screen Resolution slider should be all the way to the right, close to -> More.
The Colors should be set to the highest setting.

When you close the lid, you may have your laptop set to Sleep Mode, check that. You may also have your screen saver set to Blank, and no screen saver has been chosen.

(1.Screen Saver: Right-click on empty area of desktop>Properties>Screen Saver.

2.Sleep Mode: Start>Control Panel>Performance and Maintenance>Power Options>Power Buttons>When I press the sleep button on my computer>Then choose what you want it to do)

If none of this helps, I suggest you have a problem that HP needs to repair. Since you bought this dv9700t last July, would I be correct in assuming it's still under warranty?

OK, I am sorry to say that it seems to be more than I thought. Here is a link to a forum where other people are having the same problem. I expected it to be a setting but this sounds like I'm wrong. I sure wish I could be more helpful. Here's the link though. Good luck, I know how frustrating it is.
http://forums.techguy.org/hardware/541286-monito-stuck-power-save-mode.html