Dell n5050 no power light

jlrka

Posts: 7   +0
Inspiron N5050. There is no power light on. The ribbon cables for the pwr sw, tpad & kbrd are disconnected.
The end of the adapter reads 19.94v at the inner wall and 2.4v at the center pin. With the
7 pin connector disconnected from the mobo I get 19.94v at all 3 reds and 2.4 at the blue.
When I plug the connector into the mobo and check at the pins soldered to the mobo I get 19.94
at all 3 red and .35 at the center(blue).
Is this how it should be or is there a problem somewhere?
I had this problem about 2 months ago and just set it aside. When I finally got back to it today
It had the pwr light and started up. Ran it for an hour and shut it down. Came back 2 hours later and no pwr again.
 
Yes they are low... Please note, this could be a motherboard fault, but the power supply would be cheaper to try first
 
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