My HP media center desk top will not turn on. I have checked power and switched main plug. My son recently cleaned out the dust and showed me where to plug more power to speed the machine up. Which I have not done. The machine was working perfect then I switched it off due to the fact I was leaving for a couple of days. Now it wont come back on. The monitor is working.

And? do you have a question? Do you have a problem? If so, what is it?

Vista is a DEAD,OS. (ended now)
got the HP VISTA install disks, or waiting for this moment to happen
as all do.
seem screens bad too. try another borrowed DT screen as a test? easy no?
but.... both main processors , shut down. IF?
what if the GPU chip is overheating, ever do DUST bunny SERVICE
(vacuum it out?) no PC lasts for 10 years and not fill with dust
not one. ever.

BSODs

1. bad memory chips, try all sticks 1 by one, to prove it.
2. corrupted VISTA. or Virus infected as most are this old.
3. low power, power supply in unit weak or noisy.
4. bad HDD, disk errors, run check desk yet?
5. reload VISTA fresh? HP media set not MS.
6. or worse there is always worse.

It could mean some internal component is damaged, and your desktop is simply unable to be powered on. However, make sure to check your power cable is plugged in, and power is actually switched on (check the back of your machine).

in order of likely 2005 pc? 12 years old. no spring chicken for sure.

1: virus infected, clean or better reload the op. system , XP?
2: bad HDD.
3: power supply or overheating problems or PC full of dust ,clean it.

desk PC is what that is.
i bet it runs XP 2005 system with XP, sure.
and all XP are infected,

get boot CD, see PC can run an BOOT PC
if yes, the hdd is bad or OS is infected.
the disks are free. Google boot CDs)

shorted processor out from static.

Hello,
There is no fuse inside.If this is idle for a few years , might be there is some dust in switch so you will have to clean it once and also try with exchanging the power cords.

Thanks

Cleaning cartridges
# Open HP Solution Center:

* Windows XP: Click Start , click All Programs , click HP , and then click HP Solution Center .
* Windows Vista: Click the Windows icon , click All Programs , click HP , and then click HP Solution Center .

HP Solution Center opens in a new window.
# Click Settings
#In the Print Settings area, click Printer Toolbox . The printer Toolbox opens.
#On the Device Services tab, click Clean the Print Cartridge(s) ( ).
#Click Clean to begin the process.


====================
Can check by cleaning the Roller inside - Problem usually come because of the dust on the roller


Happy new year

media center hp desk top wont turn on

http://h10025.www1.hp.com/ewfrf/wc/fastFaqLiteDocument?lc=en&cc=us&dlc=en&docname=c00371243

That link is a video of how to take apart yor case. It is very thorough, primarily, it just shows that the side of the case is held on with a couplw of screws, looking at the tower from the front, it's the left panel that you want to remove, not the left, the right one will give you access to what yo are interested in doing.Make sure the plug is removed not just turned off. There is residual voltage that still runs into the main board from the power supply, and try to use a very light computer vacum or one of those swiffer dusters work well. If you poke around with the vacum be careful that you don't **** off the jumpers, you won't relise it untill you turn it on. You can use compressed air that is sold in computer stores or most large electronics stores like Best Buy, Don't forget to get the power supply in thr upper corner of the case, it also has fans in it that collect dust. When you re assemble it, make sure you get the panel in the groove at the bottom, and the clips at the top, and good luck

It is a fault with dvd. Dust can be a reason. Anyway need servicing.