Question about Intel Compaq EVO D500 (RBMDTCPQP42400) PC Desktop

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Have installed a new power supply into a compaq d530c/p2 now the power is running but when I switch on both light in front go green thenone light flashes red and it will not boot up help please

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Hi. Do you see the power on self test displayed in the screen (usually white letters displayed during boot up)? Do you get any error message or is the screen totally blank?

If you installed a replacement(generic) power supply, please check the wattage and ampere if same as your original one.

Posted on Aug 05, 2010

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My HP D530C does not power on. The power LED flashes 4 times. What is the fault? Pls let me know asap. Thanks.


HP xw6200 Workstation - Diagnostic LED Code: Four Flashes ISSUE: When the workstation is powered on, the front LED might flash red four times, once per second, followed by a two second pause. SOLUTION: The front LED flashing four times is a sign of a power failure. To fix this issue, complete the following steps:
  1. Open the access panel, and check to see if the four-wire power supply cable is properly connected to the system board.
  2. There may be a faulty device. Locate it by removing all devices and then reinstalling them one at a time until the workstation fails. Replace the device causing the failure. Continue adding devices to ensure all are functioning properly.
  3. Verify the power supply functionality, as follows:
    1. Disconnect AC power.
    2. Remove all internal power supply cables from the system board.
    3. Plug in AC power.
      • If the power supply fan spins, and the BIST LED illuminates, then the power supply is good. Replace the system board.
      • If the power supply fan does not spin, or the BIST LED does not illuminate, replace the power supply.

Dec 13, 2011 | HP Compaq d530c PC Desktop

2 Answers

My Compaq Presario SR1250nx will not turn on. The power chord is attached and power strip is turned on. I've also tested on a stand alone outlet to ensure it wasn't the power chord. A little green light...


Looks like your power supply's failed. The green light on the back of your power supply is just a neon light that just confirms that the power lead is OK, it does not relate to the status of the power supply! Try powering it up with another power supply, or replacing the power supply.

Oct 14, 2010 | HP Compaq Presario SR1250NX (PJ534AA) PC...

1 Answer

Compaq proliant 5500 server wont power up


In my experience when a server/computer does absolutely nothing when the power button is pressed it is a dead processor. That may not be the case in your situation. It could be as simple as a defective power switch. Is the switch a soft touch or does it push in and click? Does the switch feel normal when pushed? One of the power supplies could also be bad. Do you have any good power supplies to test in the server? Were there any power outages recently that could have caused damage to the PSU? I would start with checking the switch. You could hook up a circuit tester and see if the switch completes the circuit when depressed. Also take a look inside the server and look for any loose connections on the mainboard. It is possible the wire for the power switch has come loose.

Sep 05, 2009 | Compaq ProLiant 3000/5500 Redundant...

1 Answer

Compaq proliant 5500 server P2 dual xeon processors. Will not power on. green lights on both powers supplies are on - green lights on Mother board and LCD on front are on but absolutely nothing happens...


I am wondering if you had been doing some work to this when this problem started. Did you take the wires off for the power switch? I have noticed that sometimes if you pull the wires off of the motherboard and put them back on and you put the connector on backwards (assuming that its a 2 wire cable for the front panel) it may not work. Also, if you have a screwdriver handy which Im sure you do, take the plug off of the motherboard and jump the 2 pins that start the system. If it makes the system work then change the switch. If that does not work then try checking the power supplies. Just because the light is no does not mean that the power supply is working correctly. Will the system work with just one power supply hooked up. If so try one at a time. I have also had luck with re-seating the processor and the system then booted correctly. Try reseating the ram. Bad drives, cards and cables can make the system not start. Unplug everything that you can and if it starts, plug one thing in at a time and see if you can eliminate the bad part. Hope this helps...

Sep 05, 2009 | Compaq ProLiant 3000/5500 Redundant...

1 Answer

Hp pavilion 513n tries to start up then turns off


This is a case where something that is getting switched on during start-up is causing the power supply to fail... probably due to a short. How ever I believe the short is in the power supply

This is an older HP model ( I have a 530N) with teh same problem. I bought a new power supply and installed it.

Aug 14, 2009 | Computers & Internet

2 Answers

When comp pluged in just a green flashing light


If you are sure that the 110 volt power is coming into the computer then the most likely problem is that th epower supply died. Obtain a new one of the same or larger wattagge as the one you are replacing . It does nto have to come from the manufacture of the computer. 

Nov 26, 2008 | Compaq Presario SR1000T (568657) PC...

2 Answers

Booting up


one light is for hardrive activity , the other is to show the power is on.. the flashing one is most likely the power light as most computers will tell you when thier ill....the beeping is an error code and should be in some pattern EG: Power LED blinks red twice, once a second, followed by a two second pause. Or something like that. Take note of the pattern and repost it here, then we can give you a specific area to look at.

Sep 16, 2008 | HP Compaq d530c PC Desktop

1 Answer

Pc will not power on .Press main power button on the front of the server,all fans work and front Disk LED glows yellow. Power LED at rear glows green but LED on the front(light bulb symbol) not lit....


Open the case and check the connection between the case power button and the motherboard. unplug that connection and short out the pins on the mb. The computer should start up. If it doesn't, there is something wrong with the mobo. If it does, there is something wrong with the switch, or the connector wasn't tight.

Sep 06, 2008 | Compaq Computers & Internet

2 Answers

New problem


my Sound card is uninstall. tall me how i re install it.(i don't have driver c/d. its missing.)my pc model no is (Compaq Business Audio driver for window 98 In Intel(R) 82810.).my email id is www.jit.sengupta@rediffmail.com

Jun 27, 2008 | Compaq Presario SR1103WM-B (PC183B#ABA) PC...

1 Answer

Hp d530c


Hi NickJames,

I think its your CPU IC. Its overheating and the auto shut safety sequence is being activated and hence this problem. It can also be that the temperature settings in your CMOS setup has been set to a wrong / low setting wherein the PC shuts off even if your CPU warms up a little. Check that by going into CMOS settings. Only after confirming that, have your motherboad checked & also your HDD for a short in the power supply section. Perhaps a capacitor is leaky or short or a diode is short. Send it to an authorised repair center.

May 05, 2008 | HP Compaq d530c PC Desktop

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