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April 7th, 2021 06:00

optiplex 990

how would i go about powering on this device till i get the power switch 

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11.8K Posts

April 7th, 2021 09:00

If you mean you want to jump start motherboard you can find the 5 pin power switch header (2x3 pin with one blank, right next to DIMM slots) and short 2 pins momentarily using flat blade screwdriver.  990/790 have same 5 pin.

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(5 pin pwr sw at upper right corner)

April 7th, 2021 09:00

thank you 

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