Question about HP z555 (PS501AA) PC Desktop
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Posted on Jan 02, 2017
SOURCE: presario v2000 display problems
there is someting loose inside the computer so you may have to open it and check for loose conections or pices that they may be loose or video conectors
Posted on Jan 05, 2008
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
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
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
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