Question about HP Pavilion a430n PC Desktop

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My hp pavilion a430n is not turning on. even though i pressed the power button the light wont even turn on. it is truly annoying and the screen says something about the power supply and green, red, blue then nothing

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I suggest to open your computer and unplug your power supply and look for the color green and black cord which plugged from your motherboard. Then find a piece of wire and short the color green and black wire to test if your power supply is working and plug to your power socket. And check your electronic parts (capacitor) near at your processor, it might your capacitor blown out.

Posted on Nov 15, 2010

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Posted on Jan 02, 2017

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Restore factory settings


Here are the instructions from the user manual (be warned that doing this you will lose all your photos, Word docs, etc.):
1 Turn off the PC. If necessary, press and hold the On button until the PC
turns off.
2 Disconnect all peripheral devices from the PC except the monitor, the
keyboard, and the mouse.
3 Press the On button to turn the PC on.
4 During the startup, do the following to enter the System Recovery program:
When the blue screen with the HP Invent logo appears, press the F10 key on
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5 The PC starts the recovery; wait for the onscreen instructions to display, and
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6 Complete the PC startup, and finish the registration process. Then reconnect
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Check out the link on HP's site for more info: http://h10032.www1.hp.com/ctg/Manual/bph08796.pdf

Oct 21, 2010 | HP Pavilion a430n PC Desktop

1 Answer

I updated my BIOS on an HP Pavilion a430n now it wont boot up, the computer starts with the fans running on high. There isn't a boot screen or anything just blank. Help!


Sorry for some bad news, but unless you know someone who would know how to unbrick your motherboard from a bad bios flash.. its gone. They recently came out with new boards that have protected firmware, if anything like this were to happen it would auto reflash the original bios to the board. Hope this helps :-S

Oct 19, 2010 | HP Pavilion a430n PC Desktop

1 Answer

HP a430n desktop - When turned on I only have a black screen on my monitor. Video card, Bios, or bad motherboard? ruled out video card and verified hard drive still good.


Remove CMOS and hard drive connection from motherboard. And then restart the system. It will give msg insert boot drive..

Now reinsert the CMOS and Hard drive connection to motherboard

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1 Answer

Hp pavilion a430n power supply is blinking


Look at this photo
(http://www.atxpowersupplies.com/images/300-watt-atx-power-supply-FSP-ATX-300GU-350w.gif)

Did you connect the p4 atx 12vx1 plug?
You may also need to connect the aux x1 plug on some models.

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I have the same model with the same symptoms in for repair. This is a motherboard issue and requires a reflow of the GPU and chipset. It has nothing to do with the LCD because the buttons don't react when the laptop is "turned on". The touchpad turn on/off button does not react when pressed, the same is with the wifi, volume and mute buttons.
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remove the battery and the power from the laptop.....then press and hold down the power button for 20 seconds ...... attach the AC power only and turn on the laptop this should turn on the system.
This drains the capacitors on the system (safety feature of laptops ... quite common)

If this does not work remove the Ram and reseat it ... something has either come loose or the backlight on the LCD has gone bad.

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Try this quick fix first. Remove the battery, unplug the ac adapter and hold in the power button, plug the ac adapter back in and turn on.

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