Question about HP Pavilion A520n (DW233A#ABA) PC Desktop

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Will not start; suspect motherboard or start swithch

The start switch will not stay on (blue color) and the cpu will not start.

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I had the same problem with my computer. It was the on/off switch. To avoid having to buy a new switch, I just used duct tape to hold the switch in place and have the computer set to shut down on it's own.

Posted on Mar 16, 2008

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Posted on Jan 02, 2017

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MSI 661FM3-V Motherboard boots for 15sec then turns off


make sure that chip on the mother board is grounded with that alumnun housing if that chip get hot its shots down its a square chip thats black see even if it on it make sure that it is on it tight so no overheating will happen.

Feb 05, 2011 | MSI 661FM3-V Motherboard

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Power on but no display processor fan running power switch light off


Power light possible means nothing, maybe a burned out led.
No display: Try feeling the cpu heatsink to see if its getting warm. If it is cold after 15 minutes running, the CPU may have failed. If warm, move onto the graphics. If using onboard, try using an aGP card and see if you get a display then.

(I'm assuming that you get a beep on powering up? If you get no beeps at all, confirms CPU is at fault, if 8 beeps on start up, probably graphics. any other beep codes, post them and I (or somebody else will help)

Dec 28, 2010 | PC Chips : PC-Chips M909G P4 /FSB...

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Laptop wont stay on longer than approx 3 seconds. How do I check the switch?


if the switch at least starts the laptop.. then it is not the switch

check that you can boot the pc with the battery pulled out of the laptop and the power supply plugged in...

if this works then you need a new battery

if this does not work.... then the motherboard or the power adapter plug maybe the issue.. is the plug on the side of the laptop solid... or sloppy fitting..

if solid then the motherboard cpu and memory are the suspected components next..

is there beep noises during boot for the three seconds that occur???

Sep 28, 2009 | Compaq Presario X6000 Notebook

1 Answer

Screen never switches on


please your monitor's switch is currently ok and warking?
second time your open the cpu couver and so the all add a smps sowaked in the motherboard add is ok. and you so the smos power
is down power you changed smos power and restart the pc and chack the ok.

Sep 27, 2009 | Gigabyte Computers & Internet

1 Answer

CPU switches on when mainwall plug switched on, on/off switch on cpu not operates. Can I change this?Is there a jumper to change?


I suspect that the case front on/off switch is not connected to the proper pins on the motherboard. If the motherboard's power activation pins are shorted, then it starts every time on applying AC.

Sep 13, 2009 | Computers & Internet

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The computer is an acer 5630 laptop. Before i changed the motherboard I would turn on the laptop and five seconds later The fan would shut off and all the lights would stay on. I purchased a motherboard...


fan always start working when u switch on the laptop, then it stop because it monitor your cpu temprature if CPU temp is blow the level of heating then it stay stop and if it exceed the limit of cooling then fan automatically start to just kick out heat of CPU, so it is normal, but tell me did u get display when fan switch off? let me know

Aug 24, 2009 | Computers & Internet

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The cpu fan wont run--i cleaned it with air can--if i hold the start button down it will stay running but make a lot of noise--when i let up on the switch it will die--i think the cpu fan burnt out causing...


Try replacing the fan first, and see if the computer starts, and runs normally, otherwise you could have fried the CPU. In that case a new processor is needed.

Aug 04, 2009 | ASUS Computers & Internet

1 Answer

Post


hi i also have a crosshair mobo and it will not post or start up if the internal blue led's are on switch them off on the back and i'm sure it will start

Aug 24, 2008 | ASUS CROSSHAIR Motherboard

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