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Powers supply led flashing computer will not start

Power supply led flashing. computer will not start

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First, ensure that everything is seated properly in its respective slot. If problem persist, examine power supply ensuring that they are no blown capacitors in the unit. Often, blow capacitors will not hinder a PSU from starting when the power supply is JUMPED. However, when installed on the system board, the faulty capacitors will quickly render the PSU useless.
I am going to bet on your psu as being the culprit.

Posted on Sep 29, 2009

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2 Answers

Ibm x3400 is not powering on green led blinking continiously


Hello here is others with the same problem:

http://www.ibm.com/developerworks/forums/thread.jspa?threadID=397434&start=15&tstart=0

It looks like the power button is failing.

The fault could also be the mainboard.

Try also to talk with a autorished dealer or a repair shop.

Good luck

Dec 15, 2012 | IBM x3400 Server

1 Answer

Green power supply light is flashing so power is getting to the computer, however the computer will not start from start button. Have removed case and tried ***** start button. Didn't work. Comput


Power getting to the computer/Power Supply?
Yeah.

Power Supply good? -> NO

A) IF ALL of the LED lights were on at once, they would use less than 1 Watt of power.

B) EACH fan uses 2 to 3 Watts of power.

C) A typical Processor can use from 51 to 125 Watts of power.
Just depends on what Processor it is.

HP Pavilion a810n Desktop PC?
Uses an AMD Athlon 64 3300+ processor,
(Operates Up To a frequency rate of 2.4GHz)

http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c00280647

http://en.wikipedia.org/wiki/List_of_amd_athlon_64_microprocessors#.22Newcastle.22_.28CG.2C_130_nm.29

Can use up to 89 Watts of power.

Your Power Supply doesn't even have enough power to spin fans, much less start the Processor.

Want to test the Power Supply? Have a multimeter?
No? Have a power supply you can borrow for a test unit?
KNOWN to be good, and Compatible?

For additional questions please post in a Comment.
Regards,
joecoolvette

Aug 05, 2012 | HP Computers & Internet

3 Answers

Emachines model 4026. We had a short power cut. The computer went off and now will not start. At the back of the machine close to the power plug is a round green L.E.D. light. This is now constantly...


it looks like the power supply went bad, before try to do something else. I would recomend you to get you powe supply (part #) and order a new one . it is really simple to install it. the power supply is on the back of the computer where you see the green L.E.D light it is what gives power to the whole system.

follow this link and watch the video to know how to install it. http://video.about.com/pcsupport/powersupply.htm

Jan 24, 2011 | E-Machines eMachines Desktop PC

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

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

If the power goes out on my system the light on the power supply starts flashing and the computer won't start up. have to unplug the power supply from the motherboard and plug it back in to get the...


HP has a page specifically for troubleshooting issues of the power supply unit (PSU) LED indicator below:

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

Sep 22, 2009 | HP Pavilion a735w (PL308AAR) PC Desktop

2 Answers

HP a820n No Power-up after City Power Failure


You have a bad power supply. It is not an expensive fix. Remember HP's take HP power supplies. When ordering either look on ebay for your model or order from part supplier.

Aug 22, 2009 | HP Pavilion A820n (PP165AA) PC Desktop

1 Answer

I tried several different cards but no luck. Cards work ok on other computers.


5V Stand-By Indicator LED
The power supply will always supply a 5V standby voltage to your
motherboard so that it can power on via for example Wake On Lan
technology. This LED shows that your power supply is supplying
this standby voltage to your motherboard.n :D

You may need to replace your power supply, if the LED is flashing, it's not supplying the power the motherboard needs.

[JP-25]

1 2 3 4 5 6 7 8 9
. . . . . . . . .
. . . . . . . .
10 11 12 13 14 15 16 17 18


1] Power Led (+)
2] --
3] Power Led (-)
4] --
5] --
6] Speaker (+)
7] --
8] --
9] Speaker (-)
10] Reset switch
11] Reset switch
12] N/A
13] Power Switch
14] Power Switch
15] ACPI Led (+)
16] ACPI Led (-)
17] HDD Led (+)
18] HDD Led (-)


For future reference you can download your motherboard manual here:
(PDF) Soyo K7VKP2

May 09, 2009 | Computers & Internet

1 Answer

Pulsating hard drive on startup and off


To eliminate a software problem, I installed another hard drive with the same operating system, and the problem still existed.
I also flashed the BIOS with no results.


The most logical conclusion is that the problem lays with power supply.
A new power supply was ordered today.

Jan 13, 2009 | Dell HP-P2507FW Power Supply ** FREE...

2 Answers

Flashing Lights when powered down


The flashing LED is because your system is in "sleep" mode. By default windows Vista puts your computer in sleep. What this means is it doesn't shutdown the power completely it leaves a little going through certain computer components (more specifically the ram) to speed up the boot time when the power button is pressed again.

In XP a the default shutdown scheme is a complete shutdown where power is turned off after the shutdown process is done. If you are using XP you are putting your computer to sleep when shutting down.

As for the boot problem. Newer motherboards have an LED on the actual board to indicate that it is receiving power. If it is of either the power supply switch (at the back of the case) if off or the motherboard connection is loose and the shaking makes it fall into place. (Shaking is usually not necessary and indicates a problem...)

There are a few possibilities I can deduct from your description:
  • the connection from your power supply to your motherboard isn't properly seated and is causing this
  • the power supply switch (not the case switch) is being  turned off and results in the computer taking a few seconds before the internal LED become solid
  • ... the dreaded sign that the power supply is failing and is on it's last legs...
My suggestion is to check all connections and if that doesn't work borrow a power supply from a friend and swap them to see if it boots properly.

(If a friends with a spare power supply isn't an option a local PC repair shop should be able to help you out... but probably for a fee...)

Oct 28, 2007 | Computers & Internet

1 Answer

Red Light on Board


it is better to use the old power supply because it is compatible to your mother board

Feb 11, 2007 | Soltek SL-K8AN2E (SL-K8AN2E-GR)...

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