Question about HP COMPAQ BUSINESS DESKTOP DC5000 SFF - 1 X P4 2.8 GHZ - RAM 1GB - HD 1 HP (PJ143USABA)

1 Answer

Hi iam acomputer engineer and i used to maintain power supplies but there is a problem i coudn't solve with hp dc5000 power supply it flashes red when pressing the power switch

Posted by on

  • Leslie May 11, 2010

    did u check the ram it could be many different things but it sounds like the power supply ram or a board prob.



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Contributor
  • 39 Answers

If the bottom light flashes red 4 times then repeats itself the power supply is defective.

Posted on Aug 29, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Ways to fix red lights blinking four times

Red Power LED
flashes once
every two
Red Power LED
flashes four
times, once
every second,
followed by a
two second
None Power failure
(power supply is
1. Check that the voltage selector,
located on the rear of the power
supply, is set to the appropriate
voltage. Proper voltage setting
depends on your region.
2. Open the hood and ensure the 4-wire
power supply cable is seated into the
connector on the system board.
3. Check if a device is causing the
problem by removing ALL attached
devices (such as hard, diskette, or
optical drives, and expansion cards).
Power on the system. If the system
enters the POST, then power off and
replace one device at a time and
repeat this procedure until failure
occurs. Replace the device that is
causing the failure. Continue adding
devices one at a time to ensure all
devices are functioning properly.
4. Replace the power supply.
5. Replace the system board.

Jun 14, 2014 | HP Compaq dc5000 Small Form Factor PC...

1 Answer

Dc 5000 sff. wont power up. green light on motherbd flashes. if power on button is pushed, the front green led blinks too. I have replaced the pwr supply w/no change.

make sure both the 4 pin and 20 pin connectors are firmly installed. if the mobo light flashes how many times does it flash, do you hear any beeps?

If you need further help, reach me via phone at

May 10, 2012 | HP Compaq dc5000 PC Desktop

1 Answer

When i turn on my computer/hard drive, the green light turns on for about a second and then it turns into a flashing red light and also the fans stop working/turning. Nothing comes up on the monitor.

It sounds like the power supply is failing. This computer has an odd size power supply. You could try another power supply from another computer and see if it boots up just connect it from the outside of the case temporarily . If it is the power supply you could remove the power supply to measure it and search online for the correct one. I just did a Google search and there were alot of option to choose.
Thanks for using FixYa

May 30, 2011 | HP Compaq dc5000 PC Desktop

1 Answer

The power at the start is red and not green how can i know what is the problem is it the power supply or others please answer me.....

Power LED flashes Red,
once every two seconds.
Power LED flashes Red four
times, once every second,
followed by a two second

Would this be the symptom?

If so, then yes, the Power Supply is bad.

What causes this?

1) A large percentage is due directly to the fact, that the computer is dirty inside, as well as the inside of the Power Supply.

2) A smaller percentage is that the Power Supply is a low quality unit, installed by the computer manufacturer.

Computer unplugged from power, computer case open, anti-Static precautions observed.

Using a can of compressed air for computers on a regular basis as needed, would help prevent Power Supply failure.

Is the dc5000 the Small Form Factor, or the Micro-Tower, style?
(SFF style looks like a Pizza Box)

Will look up Power Supply replacement for you if you wish, and information on replacing it.
Simply reply in a Comment.

Jun 01, 2010 | HP Compaq dc5000 PC Desktop

1 Answer

Need to remove power supply from hp dc5000

hi this might help tower and discharge static by touching frame of computer ...then pull out power supply connection on the motherboard and this usually is connecting to Hard drive and disc drive pull them out also then on the outside of the back of the computer you should see screws around where the fan is usually at the top of back of pc. unscrew and then it should come out..hope this helps good luck

Nov 05, 2009 | HP Compaq dc5000 PC Desktop

1 Answer

I have an HP dc5000 and whin I power it up I get 4

Yes sounds like either a dead or dying power supply

Jul 10, 2009 | HP Computers & Internet

4 Answers

HP dc5000 won't start. Green light on front is dim and flashing.

Hold down the power button until the machine completely turns off. Then turn the machine back on and let me know what happens.

May 26, 2009 | HP Compaq dc5000 Small Form Factor PC...

1 Answer


Check the cables connection first.

Check if the power supply fan and cpu fan are working
If not you need to replace your power supply.

Let me know how it is going!

This will fix your problem.
Please don't forget to rate my help!
Thank you for using FIXYA!
Have a great day!
Pablo :-)

Oct 17, 2008 | HP COMPAQ BUSINESS DESKTOP DC5000 SFF - 1...

1 Answer

HP DC5000

check power supply first if ok then green light blinking check ic fw82801

Jul 21, 2008 | HP Compaq dc5000 PC Desktop

Not finding what you are looking for?

Related Topics:

306 people viewed this question

Ask a Question

Usually answered in minutes!

Top HP Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18425 Answers


Level 3 Expert

538 Answers

Alun Cox

Level 3 Expert

2678 Answers

Are you a HP Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides