pls house, i need help ..i am working on a dell optiplex desktop, when i power it on ..it only blinks and this blinking continues until i remove the power...please what do i do to correct this.
its the power led thats blinking and wont go off even by pressing the power button until i remove the power cord from the system
it seems like the problem is with your smps. well... open-up your SMPS and check for any bulged capacitors and check all the the output voltages like +12v +5v +3.3
Do you get the POST beep sound at computer startup?
you can measure the voltages +12V, +5V, and +3.3V at a spare connector with a digital multimeter, if they are out of range then better to replace the SMPS power supply
first you have to check motherboard for any component for any damage. 2nd check point is check smps or change it, if problem is not solved after this only soltion is "Update BIOS using an ROM Programmer if you have otherwise go to an service center".