Solved: Turned on my OptiPlex 780, now starts to power cycle. When I hold the switch behind battery, blinkin... - Dell Community
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Amazon.com: FR610, PW116, RM112, 67T67 R224M, WU136 DELL 235w Power Supply For Optiplex 760, 780 and 960 Small Form Factor (SFF) Systems Model Numbers: F235E-00, L235P-01, H235P-00, H235E-00 : Electronics
Solved: Dell Optiplex 780 Error Messages/Diagnostic Codes Power Button and then 1 and 3 number lights flash - Dell Community
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