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Computer made pop noise then quit booting up

Power supply checks out used it to boot another computer

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Then check on the motherboard for "popped" capacitors. They look like small barrels upright (in case you didn't know what they looked like)

Posted on Dec 20, 2008

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On some of these, there is an internal circuit breaker on the power supply. You can try unplugging it, hold the power button down for about 30 seconds, then plugging it back in. That can alow the power supply to reset.

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what computer? when you say added new power supply what state was the computer in before you added power supply ? do you know the new supply is a good one ?
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My hp pavillion a1540n won't boot up. The power button is on but no boot menu on the monitor. Monitor is blank


I suggest you check the Power Supply. Bad Power Supply, weak Voltage power rail.

1) ALL the LED lights use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts
3) A typical Processor uses 51 to 125 Watts. Depends on what Processor it is. (Older one's use less)

The HP Pavilion a1540n specifications state it uses an AMD Athlon X2 4200+, processor.

(2.0GHz. Dual Core. Built upon the Windsor Core. Uses a Socket AM2 processor socket)


HP Support > Pavilion a1540n desktop computer > Specifications,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00679533&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&product=3184140&lang=en

Can use up to to 89 Watts,

http://en.wikipedia.org/wiki/List_of_AMD_Athlon_64_microprocessors#.22Windsor.22_.28F2_.26_F3.2C_90_nm.29

Enough power for the LED lights, and fans, but Not enough for the Processor.

No Processor operating, No computer.
No computer, No Signal to the monitor.
(Video signal)

The Power Supply used is an ATX style, and 300 Watts.

A computer only uses the power it needs, and No more.
If you install a Power Supply with more Wattage than the original, it will be fine.

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1 Answer

Power Supply


Hi,

If you are not getting even the Motherboard boot singal, then, its a power card issue. Please check the power cable to the monitor.

Regards,
HP

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Ac power alert when computer boots up.


You need to check your power supply. Most likely your power supply is going bad, but it could be your wall outlet too. If you have a multi-meter check the power at the outlet, but probably replacing the power supply will fix the problem.

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1 Answer

D4 Post code using tech aid diagnostic card


check power supply in back to see if you have on and off switch but you would'nt be the first with this problem from dell about the power supply going out meaning:

if you don't have nothing happening when your trying to boot the computer then it's the power supply, plug in computer power up and feel in back to see if the fan is blowing if nothing power supply is gone call dell.

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not understanding your question ..need more info .. is the computer not booting ? Is it flashing red, green, orange? need more info

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