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Won't turn on

When I press the on button nothing happens. When I hold the button on it blinks and the fans run, I had a noisy case fan but I replaced it, Could it be the bios battery is weak, I never power it off before and now I can't get it on.

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  • 1944dale132 Nov 24, 2008

    When I press the on button nothing happens. When I hold the button on it blinks and the fans run, I had a noisy case fan but I replaced it, Could it be the bios battery is weak, I never power it off before and now I can't get it on.

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9 Answers

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Mostly the connections in the cpu had got loosed while replacing the fan.just make them proper to solve your problem. good luck.

Posted on Nov 24, 2008

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It is not due to any BIOS settings.check out this things 1 by 1
1)CMOS battery weak replace it.(its not at all costly just replace it first before doing any thing)
2)the power supply at the end of its life this also needs replacement.
3)if any of the cards or wiring connection moved or got loose while replacing the fan.(just open the cpu and reset all the cards and refit all the connections again firmly tight and do it carefully and slowly.)
4)nothing solves then take it to the repair center they will check out each part 1 by 1 by replacing it.and the fault will be detected.
thanks.

Posted on Nov 24, 2008

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Try to check your SMPS power suppy.

How to check it i'll tell you.
1. open the cabinate of CPU.
2. Remove the power 24 pin connector from mother board.
3. short the two wire Green and black.
If power suppy works. that's good for you if not working replace it with new one.
4. change the CMOS battery
after that If same issue.

5. you need to check *********** board for repair or replacement.

Posted on Nov 24, 2008

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When bios battery is weak computer starts the same, this can be:

faulty start button switch,

faulty motherboard.

other defective devices, like PCI cards can cause the motherboard not to start.

A technician must have a look at your motherboard, check the switch, test the motherboard with a minimal set of devices, and if it is falty replace it.

Posted on Nov 24, 2008

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Anything inside the case that might have been moved while replacing the noisy fan ? any beeps ?

Posted on Nov 24, 2008

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Hello!!

Have u used the computer after replacing the fan case ??? If not then the problem lies with SMPS unit itself!!! And do check out whether the fan runs when u press the power button!!

Posted on Nov 24, 2008

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Disconnect the replacement case fan then try powering it on

Posted on Nov 24, 2008

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No ythe bois fan would not cause that more than likely ur power supply is going out i would take it to a good computer shop and have them look it over


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Posted on Nov 24, 2008

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The bios battery doesn't matter the computer would power up even if it was dead.

have a look around the computer did you possibly do something wrong when you replaced the fan?
possibly the powersupply might be at the end of its life if its old, happened to me a few times, and a solution to that was to replace the powersupply.

Posted on Nov 24, 2008

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Did you try;

Power off, power unplugged to computer.
Press the Power On button, and hold it in. Hold for a count of 10 seconds.
Let go.

Do this procedure two more times.

Plug the computer back into power. WAIT 1 minute, turn the computer on.

This method clears CMOS Error Codes, and sets BIOS Setup back to the factory default settings.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00864946&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3340228#N436

CPU fan spinning at required minimum RPM's?

Not talking about the SYS_FAN (Case fan)



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