Computer receiving power but not turning on

September 12, 2010 at 02:02:31
Specs: N/A, Dual core
Hi there,

I was hoping someone could help.

My computer is receiving power but not turning on. I am not sure whether it is just the switch or problems with the ps or motherboard. I have made sure all things are connected and still no go. Can someone tell me what I can do to test what it might be or if they have had similar issues.

The lights are on inside so I am guessing it is still getting power, I just don't know if it's an issue with the motherboard or just the switch.

Any help would be great.

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September 12, 2010 at 02:19:20
If I lose power for even very short time unplug or mains failure, it will not boot up, no fan no nothing but disconnecting and reconnecting the ribbon connection from the power unit for 1 minute it then works, but why???

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September 12, 2010 at 04:58:18
U can start a system without a power switch. Unplug power cord, open side panel and locate power switch then follow the wires into a motherboard (power sw) unplug the wire and u will two male pins, plug power cord then use screw driver to touch 2 male pins. If u do it right the system should start, if it won't then it's not a power switch issue.

It could be board, cpu or psu. If u have spare psu try it. I assume u heard nothing (no beeps, no fans spinning).
List the system specs.

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September 12, 2010 at 05:07:01
clarkent, please start your own thread.

Hundreds of people have had the same situation you describe and troubleshooting it has been described in this forum as many times.

The fact that you see some motherboard LEDs means only that some power is getting through. It is no guarantee that your powersupply is fully functional.
It is highly doubtful there is anything wrong with your start switch.

To troubleshoot fully you need access to some spare parts that you can swap in/out beginning with a powersupply.
Disconnect from mains power. disconnect power & data cables to all optic & hard drives. Remove all but 1 stick of RAM. Remove any/all PCI cards.
Leave only motherboard with CPU & heatsink fan, Graphics, keyboard and 1 stick of RAM.
Now connect power and try to start up. Any beeps? Any fans running?

Goin' Fishin' (Some day)

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