I am using hp compaq laptop. my laptop is in dead condition.
power supply o.k. I connect the power supply power led not glown. amber lights glown . no display .
please help me to solve the problem
on 03/06/2010 – Made popular on 03/06/2010
What makes the voltage going only one way in a laptop? In other words what makes the voltage not going from the battery back to the power supply?
Reason why I ask is a few days ago I plugged in my laptop power supply in my laptop and it wasn't even plugged in into and AC wall outlet and I saw some arching. The DC in connector seems fine no damage but I was wondering why it happened.
Sometimes when I pick up my laptop, it decides to stop the power supply running. It will just suddenly go black and not save my documents. When it happens, it makes a high pitch power down noise then just goes to black, where I then need to restart it. What could be the problem? Could my battery be loose?
Also, my laptop says, "consider changing your battery". Is it broken? Or faulty?
I was browsing the web on my computer and it just shut off. I think the led power light on the front of the case was still on afterwards. Since then I can't get it to turn on at all. The lights on my motherboard light up, but whenever I hit the power button it won't turn on. All that happens is my power supply makes a single clicking noise.
swicthing of input for a power supply cause failure?
i have a failed 24V DC supply to analog instruments in one of our crystalyser panel input 230 V fed from a UPS. maximum current is 10A. make SOLA power supplies.
This power supply failed after swicthing of the main power .
Perhaps a power supply failure of a critical supply source preventing the cmos bios from running.Remove the PS, connect a jumper from pin 19 (green) to ground (black wired pins, perhaps 20 or 21). This turns on the supply.The fan in the supply should run and stay running.Then, using a listing of interface voltage levels for the power supply....probably ATX standard if a desktop...measure the