optiplex 3020 not coming on

i just moved it from a standing position and now it keeps blinking white once and then you hear a beep

this happens continuousy
slingingshot15Asked:
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Dr. KlahnConnect With a Mentor Principal Software EngineerCommented:
The Optiplex series generally tries to deliver some kind of usable information about what the problem may be.

First check the system's diagnostic LEDs and see if it is displaying an error constellation.

http://www.dell.com/support/article/us/en/04/SLN284978/en

Also check the beep codes.  It should be delivering coded beeps, i.e., more than just a single beep.

http://www.dell.com/support/article/us/en/19/SLN143065/EN

One of these should give some insight into the problem.
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rindiConnect With a Mentor Commented:
Make sure all the cables are properly attached. Also open the case to see whether something came loose inside the box.
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nobusConnect With a Mentor Commented:
seems like a loose connection, or a device that was not fixed
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