dell optiplex 790 are 6 times beep sound

Hi @nebiyutesfaye,

Check if the 6 beeps are in a code pattern of 1 beep, small pause, 1 beep, small pause, 4 beeps longer pause then the pattern repeats.

Example. 1 1 4 , 1 1 4, 1 1 4,

or if the pattern is 3 beeps, small pause, 1 beep, small pause, 2 beeps, longer pause, then the pattern repeats.

Example 3 1 2 , 3 1 2 , 3 1 2 ,

Both patterns count to 6 beeps but they are indications of different problems in the PC