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Re: PC will not start up
you could have one or more faults here.
first i,d suggest double-checking the connections from case to motherboard. power/reset/hdd led et,c.
next would be to test the power supply unit, if the old or swapped power-supply-unit is compatable with the motherboard.
this will eliminate the psu.
remove any external devices such as printer or usb devices.
it,s always best to go back to bare minimums, when fault finding. these can always be added later on.
ensure the power connectors are correct to hard-drives/dvd drives et,c. Finally is the motherboard itself. Is it Brand-New or Secondhand ? and if you replaced it. are the casing spacers installed correctly ? ( Brass nuts that seperate the motherboard from casing ) if any of these are in the wrong place, you can have an earthing problem. or a dropped screw under the motherboard. it,s all a process of eliminating faulty components/devices. i,d backtrack first, then test out individual components on another computer.
With the power off and plug disconnected from the computer, GENTLEY, remove video card and reseat, and reseat the memory chips... be very careful... also, find the reset jumper and reset the motherboard to default factory...
Here is set of detailed instuctions that could be helpful...
Did you just have a storm, power outage in the area? Do you have a UPS protecting your system?
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My wont turn on too, There is a orange light on the tower, Green on the left, Battery ovel, If I push the restart button, also switch the power supply switch in the back, also unplug from it, Sometimes does it, Do ou know whats causing this to happen, Please let me know Thanks
1.the probelm is with the power supply unit which supplies power to all the unit.check weather output is comin or not.
2.check the power cable is properly inserted in the socket.
3.the socket connecting to the motherboard is damaged.
From what you are descrbing it sounds like a PSU issue
Please try the following
1) Remove all the wires from the PC
2) Press and hold the power button in for about 10 seconds (yes i know there is no power :) )
3) Plug everything back in and retry, if it still fails the Power supply will need to be changed
The Power supply can be swapped out at any decent PC repair shop and is quite cheap to do
Have you checked to make sure it wasn't the power supply? If this motherboard is still inside the pc and the cd/dvd lights up, or the network card shows life, fans, case lights, etc: than I would rule bad mobo. If nothing shows signs of life, try power supply or even better maybe a lose connection.Check all cabling and wire plugs. Clean out any dust.
phalitao, you need to check you're power supply it may be bad.
No PC or notebook will boot without memory. However in your case I would recheck all power connections from the power supply to the board. Remove & reseat all power connections.
Please use you're manual help guide you. Also on the back of you're power supply (on most PSU's), there is a Red slide switch. Please make sure it is set to 115v & not 220v. After all this checking & you do not see life from the board, suggest you replace the power supply with a min wattage of 400w. Or borrow a PSU of 350w or better.
Please post back with you're findings.
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It would help to know a few things; Is the power supply coming on at all? - Fan should be running, front panel light(s) coming on at all, etc.
You also didn't mention if it is a fairly standard clone or a brand-name system, model number, etc.
If there is no sign of life when turning on, it is most likely the power supply - the low-end units are incredibly cheaply made and prone to failure at random.
If it is a standard unit and you have no life signs, replace it. They are available from $10-100 dollars.
If you do have signs of life, watch the monitor screen for any signs of video.
If there is any kind of display, the BIOS is at least reacting and if the system is over 5 years old, replace the coin cell battery located on the board. These are widely available- even Walmart.
Obviously, the unit shuld be powered off, unplugged and you should touch some bare metal part of the chassis to discharge any static you might be carrying around.
If you have any worthwhile information, you might want to post it - it kinda, sorta helps.
First thing u have to check the SMPS if it is not working properly then it will restart automatically not working properly it means that the SMPS not giving the excact power supply to mother board now the question is how can u check the SMPS working fine or not do one thing borrow a SMPS through u r friend connect that SMPS to u system if it working with u r friends SMPS then u have to change u r SMPS if still u r getting same problem then u have to check u r system RAM if RAM not work Properly then it will get this type of problem so Change the RAM and connect another RAM to u r system if the RAM is working fine then it will work properly.