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MoBo power light on but will not power up

I have a DELL PC from a new client.  The power light is on on the motherboard, but it will not power up at all.  I don't even get the usual "I've got power going through me" sound a PC makes when you first plug in the power cord.

I've tried a new power cord, a new power supply, unplugged and plugged in the power switch cable all with no luck.

Any ideas?
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teamxnet
Asked:
teamxnet
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1 Solution
 
CallandorCommented:
Try stripping it down to just the cpu, motherboard, and one RAM module - no hard drives, no network or USB connections.  If it works, add things back until you find the problem.
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teamxnetAuthor Commented:
I've pulled out all the cards and nothing has power fed into it except the main MB and the small connection next to the CPU.
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CallandorCommented:
Try resetting the CMOS with the motherboard jumper, or remove the CMOS battery for 10 min.  
Does it have a separate video card?  If so, try another video card.
Try different RAM modules that you know work.

If these don't work, I am inclined to think it's a bad motherboard.
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teamxnetAuthor Commented:
I pulled the CMOS battery out for five minutes with no help.  Changed vidoe cards, nothing.  Pulled all RAM, nothing.  Pulled off fan and heatsink for CPU, just to see a possible reaction, nothing.  Even went so far as to pull the CPU for a reaction, nothing.  I'm chalking this one up as a bad MB.  If anyone has any other suggestions, I'll be glad to hear them.
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