Question about HP z555 (PS501AA) PC Desktop

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Hp z555 HI I HAVE A HP Z555 I HAVE PROBLEMS WITH SOMETIMES IT POWERS UP JUST FINE AND THE OPERATING SYS STARTS JUST FINE THAN SOMETIMES I TURN IT ON AND THE SCREEN STAYS BLACK THE CPU FAN SEAMS TO OPERATE FASTER AT LEAST IT MAKES SOM LOUDER NOISE AND THE START PUSH BUTTON STAYS ORANGE CAN YOU HELP

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  • Anonymous Dec 12, 2008

    me too. and tonight, instead of the power button turning orange, it flashed blue while the screen stayed black. hmmm.

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6 Suggested Answers

dutchman05
  • 487 Answers

SOURCE: hp is making a loud noise after being on for awhile

It is most likely the processor fan which is getting busted or dirty.
Open the machine after having it unplugged and blow it all dut in machine and from both fans. Clean the fans with a soft brush and see if that works. Otherwise you will have to replace it. But normally it is just dirt

Posted on Apr 26, 2008

13thLegion
  • 8 Answers

SOURCE: HP Desktop power up problem

Bad ram probably, units do that all the time at my job. Most of the time, it is the power supply that does not have enough power to invest into all hardware that makes your pc. even if you had a 400watts power supply, the next time you are buying a power supply you should do some kind of upgrade. 600 watts or more. If you have a high end graphics card then you are indeed in need of a new power supply. also check your cpu, its fan, check if it still seated properly, if there still paste on top of it to hel cooling it down, and protect it from statics. if you added new hardware, remove them and keep checking if it is working. To do manual diags, you need to take the unit apart. I would start by removing rams first, and check ram one by one, then hdd, then disconnect other components until i find the actual part. I am sure it is your powersupply, worst case scenario is you mobo is gone.(but it powers up and shutdown after all so let us hope you don't have a dead motherboard." and remove the dust please, dusty units do not run properly. Neim Le Legionaire.

Posted on Oct 19, 2008

  • 1 Answer

SOURCE: Hav a pavilion a510n HP

I had a similar problem. Moved a 4-year-old desktop. Got the flashing light and no start. Quick fix is to unplug unit, open up case and unplug the large power connector on the motherboard. (On mine this is marked P1 and has a lock tab on one side that must be held in while unplugging.) Plug the 110-volt power and THEN plug the connector back into the motherboard. Button the case back up and all will be well until the next time you shut the power off to the computer.

The cause of this problem is likely that the battery on the motherboard is nearly dead. The flashing light is a warning to replace the battery. (It would have been nice if they would have put this into the user manual.) When you disconnect the power as described above, you interrupt the low-battery circuit. Replace the battery and all should be well.

Posted on Dec 02, 2008

  • 3278 Answers

SOURCE: HP laptop does not start.LED on.black screen "warning-battery low

Remove the battery and try to power on with A/C. If the laptop works, the battery is faulty. If the laptop does not work, could be an AC adapter problem.

Posted on Jun 12, 2009

  • 4 Answers

SOURCE: resons why the hp DC5100 desktop will not start up

The first you need to do is remove the power cable to your Motherboard and back it again. If doesn't work , replace power supply, still not, replace motherboard

Posted on Jul 17, 2009

nyilasrobert
  • 627 Answers

SOURCE: HP a450n stays in a loop after thunderstorm

First of all, your xp is damaged.
To view the error hit F8 key when windows starts, after that use the option 'disable automatic restart on systen failure'.
According that error you can find on Microsoft home page what to do, or google it

I think, that is a registry error :)

Posted on Aug 03, 2009

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