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Emachine w3052 sempron 3000 Power supply gave off a warning buzzer in the middle of the night and I pulled the plug. Next morning I had no juice to anything. Bought another powersupply and changed it. No juice to anything. Tested the switch in front of tower, it's ok. Changed the lithium battery. Still no juice anywhere. Bought a generic powersupply specified for my model. Now I have juice to all drives and cpu fan but PC won't boot. HD is fine im using it now on this PC. Have it set on master. This new power supply is a switching power supply where as the old Bentec was not. The front switch on the pc doesn't light up blue like it used to. I'm wondering if I need to change anything on the motherboard switch pins or power pins?? I'm afraid it maybe the motherboard but it smells fine and I see no hot spots on it. Am I forgetting anything else???

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  • tbelanger213 Mar 10, 2009

    Power supply gave off a warning buzzer in the middle of the night and I pulled the plug. Next morning I had no juice to anything. Bought another powersupply and changed it. No juice to anything. Tested the switch in front of tower, it's ok. Changed the lithium battery. Still no juice anywhere. Bought a generic powersupply specified for my model. Now I have juice to all drives and cpu fan but PC won't boot. HD is fine im using it now on this PC. Have it set on master. This new power supply is a switching power supply where as the old Bentec was not. The front switch on the pc doesn't light up blue like it used to. I'm wondering if I need to change anything on the motherboard switch pins or power pins?? I'm afraid it maybe the motherboard but it smells fine and I see no hot spots on it. Am
    I forgetting anything else???

    One of you guys mentioned the Rom chip on the Mboard maybe fried,,, I'm assuming that's the 32 prong PMC FLASH chip for the BIOS settings. It is in a sink and looks replacable w/o having to sauder, but Wouldn't I have messed up the settings by repacing the battery as well. If so how would I reset it if the DOS menu doesn't boot either.

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This is mother board failure. i would pull the board for a visual. try to find any discolorations that may lead you to the problem. the previous pin selections should match up to any aftermarket power supply.

Posted on Mar 10, 2009

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Yup, that's motherboard.Let me research more and will get back to you in few minutes.

thanks.

Posted on Mar 10, 2009

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It sounds like your rom chip on the motherboard has gone.

Posted on Mar 10, 2009

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Hey I suggest to buy a powersupply tester to see if the powersupplys are fine, possibly motherboard faulty.


heres the tester
http://www.google.com/products/catalog?q=powersupply+tester&oe=utf-8&cid=1524379307725350783&sa=title#ps-sellers

Posted on Mar 10, 2009

  • Ekse Mar 10, 2009

    So you bought a 3rd powersupply and then things started to work again? But the pc is not starting up. I would suggest trying to reset the bios, there is a jumper on the motheboard most cases close to the battery that can reset the bios. Also I would suggest taking out all the ram memory fom the computer. Then turn the computer on without ram memory (ofcourse unplug in the middle) Then you should hear beeping from the computer, turn the computer off. Place one of the memory modules back in.

    Now you should get a start up screen, if not, try reseating the video card the same way you just did with the memory.




  • Ekse Mar 10, 2009

    To reset the bios on this motherboard, you need to pull the jumper and place it back on the other position, let it be for a minute, the computer needs to be turned off and unpluged, the 3volt battery will provide the power it needs.

    Then place the jumper back into its original position, the bios or cmos is reset try turning the computer on.





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