Computer was working fine and pleeping at me every now and again!!! Went to use the computer and it had no power (as normaly leave it running) and would not power up with no lights on at all.
Tried unplugging the power cord and pressing the on button whilst plugging the cord back in and the lights flash then die out!!!!!
Think it might be the system boards battery (3v)
Could anyone help cos i'm pi**ed off with computers now!!
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Re: No power (Compaq EVO D310DT)
The problem could be almost anything pertaining to the motherboard. The battery just helps the system keep time when it is powered off.
One easy thing to test is memory. If you have spare memory ofthe EXACT SAME memory type for the computer, try putting it in and see if the computer boots. It could also be the power supply. If you have a spare one lying around then you could try replacing it. Other wise, you will need to replace the entire motherboard.
If it comes down to replacing the motherboard, make sure that you get the exact same type as a replacement so that all your other components and peripherals will work.
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Your computer has an open circuit on the system board. If you have data on the machine you can remove the hard drive and connect it to a PC, Sorry I can't think of a more elegant solution. I hope I'm wrong.
It's possible that the AC adapter "died", and then your computer ran on battery-power until the battery went to 0%.
Or, the socket on the laptop where the AC adapter connects could have broken, or become disconnected from the motherboard, such that the power from the AC adapter was not being accepted, meaning that your computer was running on battery-power.
Take the AC adapter and the computer to a qualified technician, who can test that the AC adapter is working fine, and can disassemble the laptop, to inspect that socket where it connects.
Just read this carefully as you will get a problem to your solution.
My Computer ->right click ->properties ->hardware -> device manager -> in last you will find USB controllers -> unistall all the usb controllers one by one. Restart the machine and your USB devices will be working fine
Just thought I would update as I have just had the same problem. I turned off the computer, disconnected the hard drive and processor and then reset the Cmos. Reconnected everything and started the machine up. Don't know what it did but everything works fine now. Keep in mind you may not reset while power is connected to the computer, could damage the mobo.