Question about HP Pavilion a800n (PP163AA) PC Desktop

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So i was trying to change out the ram for a better on. while doing that i decided that i was going to clean out the insides, mainly cause its never been done. also while doing this, i took out the processor to clean it out aswell. when i put it all back together, and powered it up, the fans were running and in about 5 seconds it shut down. it didnt even get to the BIOS and didnt even kick on the monitor. after shutting it down it wouldnt turn back on untill after i unpluged it and waited for a really small green light to flash on the power supply. then plug it in and try again. but nothing changed, not even after putting everything back the way it was before i took out the ram. all i need to know is, how can i just get it to run?!?!?! its been stressing me out for about 4 hours now and i just have no clue on what i can do. i think it may be a processor issue because of taking it out and putting it back in. but i have no idea. HELP ME!!!

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  • side501 Dec 25, 2008

    ive reseated the ram more times than i can remember, and i think that i may have touched the thermal paste, im not sure if that is a bad thing and ive touched it more than once.



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Are you hearing some beeping sound while turning on your computer? Is the type of your new Memory Card same as your old Memory Card? Try to check if the Power supply and Processor fan cables are properly connected on your motherboard. Take out your RAM and insert it again, make sure it is properly fitted on its slot. If you have 2 RAMs try the only one stick of RAM(Memory Card) first.

1. To know of your motherboard is ok then try to remove the RAM and turn it ON. If your hear error beeps then that's a good sign. Your motherboard is fine.

1. Try to clean the memory contacts using the eraser. I'm pointing about the gold contacts in the memory. Might be the dirt only that causes the problem.

Power Supply
1. Try to replace the power supply. It could be insufficient supply of power due to the lots of peripherals attached to your computer. The recommend PSU watt should be 500W to accommodate all the peripherals attach to the unit.

*Note turn off your computer while setting these up.

Posted on Dec 25, 2008

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Make sure the cpu is seated properly. It should only go in one way. Also make sure you have applied a good thermal paste between the cpu & heatsink. Check and reseat RAM. Then try rebooting. Hope this helps.

Posted on Dec 25, 2008


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SOURCE: HP Pavilion a800n wont boot up

I think the processor is the problem, too.
Does the board beep? How is the beep?
Just try to remove it again. Make sure everything is placed properly when you put it back.
Also try to put old RAM back, to see if it is the new RAM is OK.

Posted on Dec 25, 2008

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