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Honor Student
Posts: 3
Member Since: ‎03-15-2010
Message 1 of 15 (10,461 Views)

HP Pavillion desktop computer will not power up.

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Provost
Posts: 23,019
Member Since: ‎07-17-2009
Message 2 of 15 (10,438 Views)

Re: HP Pavilion desktop computer will not power up.

[ Edited ]

Do you have some more information to share?  PC model?  Beeps when you power up? HP blue screen is visible?  Did you experience a power outage when you were running your PC?

 

Unplug your PC and open it up. Is there a lot of dust around the fans and the inside?

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HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP ENVY 17t Touch,i7-5500u,16GB, 256 GB SSD (on loan)
HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-5930k, X99, 16GB 2800 MHz DDR4, Intel 750 PCI-E SSD, (2)Samsung EVO 840 SSD, Corsair HX650, EVGA GTX 760TI
Windows 8.1 UEFI mode
Student
Posts: 1
Member Since: ‎03-16-2010
Message 3 of 15 (10,409 Views)

Re: HP Pavilion will not power up. Reset switch or fuse???

I've got same problem.  a1647c HP Pav.  No power.  Small, green LED on back illuminates when plugged in. I've opened up, dusted out, pulled off front face panel.  Undone power button.  Disconnected and reconnected wire harness that connects to waferboard.  Still no LOVE! 

 

Even removed cooling fan, cleaned, replaced on back of motherboard.  Just no juice coming in!  Wire connections on back of power button, with black and red wires appear to be in good shape.  No illumination besides green LED on back right near where power cord plugs into system.

 

Is there a reset switch or fuse of some sort??  I very much appreciate any time and effort! 

tks!!

-r

Student
Posts: 1
Member Since: ‎03-17-2010
Message 4 of 15 (10,400 Views)

Re: HP Pavilion will not power up. Reset switch or fuse???

HP Pavilion A6602f.  Same issue.  A fuse blew in my place and upon replacing it, the computer was just dead.  Did everything through HP Support online, nothing.  Called in and the guy had me try a bunch of things and ultimately determined that my motherboard was fried.  Just outside of warranty and a replacement motherboard costs $448.  That's a little more than half of what i paid for the computer to begin with. 

 

I have seen motherboards on the market ranging from $65 to $500 and I'm not sure if a cheap-o motherboard wouldn't suffice for now.  I don't wish to spend 7 or 8 hundred dollars a year for a new computer. Does the motherboard HAVE to be from HP?  My warrantyis done anyway so it doesnt affect that.  I'm just looking for some honest answers here.  It's very frustrating and the only offered solution was to purchase a new computer.  Any thoughts?

Provost
Posts: 23,019
Member Since: ‎07-17-2009
Message 5 of 15 (10,380 Views)

Re: HP Pavilion will not power up. Reset switch or fuse???

If you chose to not use a HP motherboard then your HP recovery disks will not work.  You might also encounter a Windows not being genuine issue but you can call Microsoft and solve that issue.

---------------------------------------------------------------------------------------
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP ENVY 17t Touch,i7-5500u,16GB, 256 GB SSD (on loan)
HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-5930k, X99, 16GB 2800 MHz DDR4, Intel 750 PCI-E SSD, (2)Samsung EVO 840 SSD, Corsair HX650, EVGA GTX 760TI
Windows 8.1 UEFI mode
Student
Posts: 1
Member Since: ‎10-19-2012
Message 6 of 15 (6,403 Views)

Re: HP Pavilion will not power up. Reset switch or fuse???

Is there a reset switch or fuse on the HP Pavillion a805n computer. Unit fails to power up when switch is pressed.

Honor Student
Posts: 2
Member Since: ‎10-25-2012
Message 7 of 15 (6,317 Views)

Re: HP Pavilion will not power up. Reset switch or fuse???

Just to have you guys try something and im not promising it works, had the same issue on an older tower, for the heck of it i pulled the HDD and put it into my main desktop THEN the main desktop had the same error till i disconnected, Try a different HDD, was told the HDD power was fried and pulling too much from the power supply to boot the comp.
Associate Dean
Posts: 5,797
Member Since: ‎09-28-2010
Message 8 of 15 (6,304 Views)

Re: HP Pavilion will not power up. Reset switch or fuse???

mcqueendonm,

You have unforunately hi-jacked a 2 yr old post/reply,

 

Please post as a new item, and you will be better served.

I am a volunteer. I am not an HP employee.
To say THANK YOU, press the "thumbs up symbol" to render a KUDO. Please click Accept as Solution, if your problem is solved. You can render both Solution and KUDO..

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Student
Posts: 1
Member Since: ‎04-17-2013
Message 9 of 15 (5,529 Views)

Re: HP Pavillion desktop computer will not power up.

I was plugging into the USB port in a desk top tower in attempt to recharge a small portable speaker when the tower lost all power.  Cannot power it up.  Is there some sort of fuse mechanism preventing a power up?

Professor
Posts: 2,472
Member Since: ‎02-19-2013
Message 10 of 15 (5,520 Views)

Re: HP Pavillion desktop computer will not power up.

Hello apaul,

 

I see that you have a start up problem with your HP computer. I would like to help with this issue but I need some information.

 

Can you provide the model and product number of the computer? Here is a link that shows how to find that information.

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