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Starting computer of a new build

I am upgrading the case and power supply of my HP a6200N. When I turn on the computer, the LED's and fans work for a quick second then stop (no power). This is my first build/rebuild. The only thing I am keeping from the HP is the motherboard, DVD burner and hardrive. I am also installing a GaForce 8600GT. The bought the case and power supply to match the microATX motherboard.

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  • John Harris Jan 03, 2009

    I have the same problem posted. I power up, the power comes on for a few seconds... meaning that the fans run on the box and the CPU and the signal to video is on, then power shuts off. Note: This happened when I was using the computer and someone walked up to the pc and touched the front of the case. I heard a static discharge sound and everything powered off. I'm hoping this is a problem with the switch and NOT the motherboard.

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  • 75 Answers

It must be ultimately wron in which u connected ur motherboard with the powersupply...

Posted on Sep 23, 2008

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HP Pavilion Media Center m8200n upon turning on it only beeps, and led light blinks twice contiuously, with no signal to monitor?


Power On LED Carl?

I ask that because most Power Supply's that HP uses, have an LED on the back also.
(HiPro, Delta, and Bestec)

The LED is now working as a diagnostic LED.
(Light Emitting Diode, so stating LED light, is redundant)

The beeps you hear are BIOS Beep Codes.
The computer's way of telling you something is wrong, and an area to look into for it.

As stated, it's a Code.
One example;
3 Short beeps,...pause, 3 Short beeps,...pause, etc.

With the Power On LED blinking 2 times, then a pause; indicates,

A) Computer is dirty inside. To include Power Supply

Computer is unplugged from power, Anti-Static Procedures are FOLLOWED; and a can or two of compressed air for computers, is used to clean it out.

I have a procedure to follow if you are interested.

B) Processor (CPU) fan is not seated correctly, and/or is Not functioning, or functioning properly.

Case open, and computer on; see if the Processor fan is;
1) Spinning

2) Looks to be spinning the proper speed.

No, I don't expect you to count the Revolutions per Minute, lol!
My reference is a general one. If the Processor fan looks to be turning slowly, you'll know it

3) Processor fan spins intermittently. Spin, slow down, stop....spin, etc.

C) Thermal Paste in-between Processor, and the finned Heatsink that sits on it, has dried up.
Lost it's thermal conductivity properties.

Top of Processor, and Bottom of Heatsink; MUST be THOROUGHLY cleaned, and fresh, new Thermal Paste applied.

I have a procedure for this too.

I can guide you step by step.

Post back in a Comment.

Regards,
joecoolvette

http://h10025.www1.hp.com/ewfrf/wc/product?cc=us&lc=en&dlc=en&product=3548185

How to > Adding/Replacing Hardware > Opening the PC Case,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00583783&tmp_task=useCategory&cc=us&dlc=en&lc=en&product=3548185

http://www.hardwaresecrets.com/article/274

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3071621&CatId=503

Apr 03, 2013 | Computers & Internet

1 Answer

I have an HP Pavilion a6200n. Takes several tried to turn the computer on.


Well I recommend you to contact HP first they have the part numbers and stuff and they can help for quiet a low fee per service, because if you go over a computer store they probably will sell you a generic one and probably it will not fit.

Jan 24, 2012 | HP Hewlett Packard Pavilion A6200N PC...

2 Answers

Hard drive will not turn on. Green light in back is blinking. But will eventually die out if disconnected from power supply. Happened when we moved it from one room to another. We know it isn't the...


Discconect the computer from the power outlet. Open the case, take the RAM out of the slot. Wait 15sec, reinsert the RAM, Now try to restart the computer. If this does not work, my guess is that the power supply is malfunctioning. And it needs to be replaced.

Mar 08, 2011 | HP Hewlett Packard Pavilion A6200N PC...

1 Answer

My "hp pavilion a220n" won't power on. ... I was


Pull the power cord out and press the power button on the PC to drain the power for 10 seconds. Then plug the power cord back in and turn the computer on. If still does not work, then the power supply may be blown out and needs replacement.

Dec 23, 2010 | HP Pavilion a220n (DK218A#ABA) PC Desktop

1 Answer

Can not get computer to power back up no lights on front o rear just little light on mother board have dell 8400


Bad Power Supply, sscorbett.

Usually you have enough power to light LED lights, (Like the harddrive activity LED light for add-in cards, that you see on the motherboard), and spin fans, but Not enough power to turn the Processor on.

Dell Support >Dimension 8400 > Service Manual

http://support.dell.com/support/edocs/systems/dim8400/SM/index.htm

Technical Overview > System Board Components

http://support.dell.com/support/edocs/systems/dim8400/SM/techov.htm#wp1052739

harddrive activity light for add-in cards (SCSI LED)

The Dimension 8400 comes with an ATX style of Power Supply, that has a maximum rated Wattage of 250 Watts.
1) ALL of the LED lights combined use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts
3) A typical Processor can use 51 to 125 Watts.

Your Power Supply just has enough power to light that LED light.
Weak voltage power rail.
Replace the Power Supply.

[ There are three power rails inside that SMPS.
Switched-Mode Power Supply.

1) The 3.3 Volt power rail
2) The 5 Volt power rail
3) The 12 Volt power rail ]

The ATX form factor for a Power Supply refers to the size, and shape of the case, for one.
Approximately 6 inches Wide, 5.5 inches Long, and 3-1/2 inches Tall.
The ATX power supply case in the Dimension 8400 however, is shorter in length.
It is 4 inches Long. (Depth)

Not an advertisement for the website, nor manufacturer.
Reference for the case size, and power cables needed,

http://www.cputopia.com/hp-400w-dell-dimension-8400.html

Scroll down to see the connectors of the various power cables needed.

You may have a Power Supply with these dimensions, and needed power cables, in an unused computer.
Perhaps someone has upgraded to a better computer, and has an unused computer that you can temporarily borrow the Power Supply for a test unit.

Make sure it has at least 250 Watts (Maximum rated wattage), plus,

1) 20-pin ATX main power cable. (Or a 20 + 4-pin ATX main power cable)

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20

[ 20 + 4-pin ATX main power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain20plus4 ]

2) 4-pin ATX +12 Volt power cable

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

Plus the various power cables needed for the Harddrive, optical drive/s, and computer case fan/s, if it/they do not connect to the motherboard.

Oct 21, 2010 | Dell Dimension 8400 power supply ** FREE...

1 Answer

My HP Pavilian a6750y tower when turned on fan runs , but no light on powere button and moniter is blank


Indicates you have a bad Power Supply, to me.
Weak voltage power rail.

1) ALL of the LED lights combined use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts
3) A typical Processor can use 51 to 125 Watts.
Depends on what Processor it is.

(The Pavilion a6750f uses an ATX power supply, that has a maximum rated wattage of 300 Watts.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01619697&lc=en&dlc=en&cc=ca&lang=en&product=3872428#N934

The AMD Phenom X4 9650 processor can use up to 95 Watts,

http://en.wikipedia.org/wiki/List_of_AMD_Phenom_microprocessors#.22Agena.22_.28B2_.26_B3.2C_65_nm.2C_quad-core.29

(In the chart under the heading TDP)

Enough power to spin fan's, but not enough to turn the Processor on.
Not enough to also light that Power On LED light.

No Processor operating = No Video Signal from the computer.
Hence the monitor is blank.
(No Signal)

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01356113&tmp_track_link=ot_recdoc/c01619697/en_ca/c01356113/loc:3&lc=en&dlc=en&cc=ca&lang=en&product=3872428

NOTE*
Computer unplugged from power.
Anti-Static Precautions observed.

Anti-Static Precautions:
Your body carries Static electricity.

Static will fry out (Short Circuit) the hardware components inside a computer.
(You may not even see it, or feel it)

Computer unplugged from power, computer case open, working on a table;
TOUCH the metal frame of the open computer case, to relieve your body of Static.
Should you leave your computer in the middle of working on it, upon your return be be SURE to Touch the metal frame again.

Oct 04, 2010 | HP Pavilion a6750f PC PC Desktop

1 Answer

My computer went blank when turning it on


1) Computer isn't working, due to the Processor isn't working, due to a bad Power Supply.
Weak voltage power rail.

Enough power perhaps to light LED lights, and maybe spin fans, but not enough power to turn the Processor on.

Computer Power Supply's are rated in Wattage.
Volts times Amperes = Watts.
(Average computer power supply in a fairly new computer, is rated at around 300 Watts)

A) ALL of the LED lights combined, use less than 1 Watt of power.
B) EACH fan uses 2 to 3 Watts.
C) A typical Processor may use 51 to 125 Watts.
Depends on what Processor it is.

Power Supply with a weak voltage power rail, can have enough power to light LED lights, spin fans, but not enough to turn the Processor on.

Solution?
Test the voltages of the Power Supply,

Or, use a KNOWN to be good Power Supply, that has the correct amount of power cables, the right kind of power cables, the correct size, and shape of the case, and enough Wattage, for a test unit..

A bad Power Supply is one of the leading causes of computer failure.

Sep 19, 2010 | Computers & Internet

1 Answer

Green light in rear flashing won't part up


The green light flashing is a diagnostic LED light, telling you there is a power failure.
More specifically a bad Power Supply.
Weak voltage power rail.

The Power Supply used in a Compaq Presario SR1010Z desktop computer, is a 300 Watt unit, and is an ATX form factor.

[ATX form factor for a Power Supply, denotes the size of the Power Supply case, and the shape.
It is approximately 6 inches Long, 6 inches Wide, and 3-1/2 inches Tall.
The ATX form factor for a Power Supply is used in over 90 percent of the personal computers out there, and is as readily available as the air we breathe]

Usually, HP uses one of three generic Power Supply manufacturers.
1) Bestec
2) Delta
3) HiPro

All are low quality Power Supply manufacturers.

This is HP Support, and the main menu page for the Compaq Presario SR1010Z desktop computer,

http://h10025.www1.hp.com/ewfrf/wc/product?product=1146324&lc=en&cc=us&dlc=en&submit.y=7&submit.x=6&lang=en&cc=us

If you click on Manuals, then on Upgrading and Servicing Guide on the following page, there are instructions on how to open your computer case.

This is instructions on how to replace a Power Supply, from HP Support,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01356113&cc=us&lc=en&dlc=en&product=3548196

(It's for a Pavilion a6230n desktop computer, but after you open the computer case of your Compaq Presario SR1010Z, the instructions are the same)

What Power Supply would I recommend?
There are 100's to chose from.
This is but one example,

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3276575&CatId=1078

Chosen because;

1) Maximum wattage is rated at 450 Watts.

A computer ONLY uses the power it needs, and NO more.
Wouldn't matter if you had a 10,000 Watt power supply, (No such thing. An exaggeration), if your computer only needs 100 Watts, it would only use 100 Watts.
(Surfing the internet typically uses 100 watts)

2) Has all the power cables you'll need, and more. Tie up the power cables you do not need. (Use plastic ties, Not wire, or bread wrapper ties)

3) 24 Amperes (24A) on the 12 volt power rail.

4) 135mm cooling fan.
The cooling fan on the Power Supply you have now is 80mm.

A larger fan turns slower. Produces as much air as a smaller fan, (Or more), but makes less noise.
Less wear on the fan's bearings also.

5) Is an ATX form factor Power Supply.

6) It's 80 percent efficient, compared to the 60 percent efficient Power Supply you have now.
(That is, if it was working)

Sep 12, 2010 | HP Compaq Presario sr1010z PC Desktop

2 Answers

Hipro HP-d3057f3r computer power supply broken?


I have the same problem. I found this:

http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=bph06788&product=12455#bph06788_section_2

  • Replace the side panel, plug in the power cord, and examine the light on the back of the power supply:
  • If the LED is on solid and is not flashing, the power supply is probably good and the problem is most likely caused by a defective component (processor, memory, PCI card) or a defective motherboard. Have the computer serviced, or remove the components and replace them, one at a time, to find and replace the defective component.

  • Aug 16, 2009 | Hi-Pro Computers & Internet

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