Question about Okia / 450-Watt / ATX / 80mm Fan / 20/24-Pin / Power Supply (OKIA450ATX) Power Supply

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Pc will not power up

How do I know if it is my power supply causing the problem?

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  • sammylynn Jan 27, 2009

    I have a okia-500atx power supply, having trouble powering up. Will turn on for about 3 seconds on the first try then turn off immediately? Any attempts after it doesn't power up at all, is it my power supply? If so what info do i need to purchase a new one.. not good with computer stuff.

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Swimmie
to chack ur power supply open all connector from system board and drive. then conect power cable with powr supply and powr on ur wall outlet switch. than take mother board connector find green color wire and take a small pice of coper wire and connect it with this green wire and a black wire. then chack smps fan is moveing or not if it's moveing then ur smps OK.

Posted on Jun 27, 2008

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This kind of problem can have many causes. Here, most probably your motherboard is not responding to the 'switchon' current and therefore the process ends. Start by cleaning the RAM 'teeth' with an eraser.

Posted on Oct 29, 2012

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My computer keeps shuting off.


the shutting down problem can be caused by:
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clean your radiator and restart your pc, if the problem was not solved check the power supply.

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Compaq PS-7171-c1f1 model


There is, but I would NOT recommmend an untrained user to do it as it can be dangerous.
If you want to know you can unplug the PSU from the PC and short out a specific connector pin (green) with a paper clip, this causes the PSU to turn on and the fans spin.
If that works it usually means the PSU is OK.
But I repeat I would suggest NOT doing this unless you really know what you are doing and take the proper precautions as shorting the wrong pins can be very dangerous.
The best way is to borrow a spare PSU and try it or buy a cheap generic one just to try that out.

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Power supply


Choosing a good power supply depends on a few factors; The amount of power your PC and all it's internal/external connected devices need. The way your PC-casing is built (for airflow).

First it's important to know if you have added any internal/external hardware to the pc since you bought it (hard drives, video cards, usb devices, memory etc.). If this is the case then you definitely need to upgrade, but reading the second and third factors I mention below will shed more light on that.

Second (if possible) you need to check the voltage levels on your current Power Supply via you PC's BIOS or by using a program like Speedfan. If any of the voltages show a reading below what they are supposed to deliver, it means you need a higher amperage on your next Power Supply for that particular line. There are three lines to check (12+, 3.3+ and Core voltage). Usually Power Supplies have a Table with voltages on their sides and on the package. Refer to the one of current Power Supply to see how much amperage your new Power Supply needs to have.

Third it's important your new Power Supply has the fans positioned in the right spots. If your always make sure the air is blowing out of the casing. If it has a small fan on the back, it most likely blows outwards (sucking air from inside your PC case though the Power Supply). If it has a big fan on the top side, it's most likely designed to blow out of the top of the PC case. If it has a fan on the bottom side, it's most likely designed to **** air from the inside the PC casing and blow it through the Power Supply. However it may also be designed to blow out the side of smaller PC casings, in which case the Power Supply is position in front of the motherboard.

Fourth is kind of the-rule-of-the-thumb, always (if possible) buy a brand Power Supply. Generic/Standard Power Supplies do not nearly achieve as much power/lifetime/quality as a brand Power Supply. I recommend a Cooler Master, for their silent but powerful coolers.

Fifth but definitely not a lesser one. Check what connections your PC need. Count the amount of pins connected to your motherboard (usually either 20 or 20+4 pins). Most modern Power Supplies cover most of the connection types. But you don't want to come home with a new Power Supply that isn't going to support your old IDE drives or something.

You could help us help you by providing us with a list of Hardware your computer contains. I can search your PC type and read the specifications, but they don't show what you put extra in/on your machine.

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leave me an email address and I will assit you.

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First of all, it is very unlikely that a resistor "burns out" for being defective itself. Usually they are designed to run around 50% of their rated wattag. So they can get hot to the touch but are not over stressed. Therefore, it is more likely that you have something else that caused excessive current to go thru he resistor. So the point is that you can replace the resistor and more than likely it will fail again. You should start with a schematice of the circuit and look for components that could fail in a shorted condition and therefore cause excessive current to go thru the resistor. A schematic will tell you the value of the resistor. I am guessing that it is on a PC board and is therefore "surface mount" style. Look for defects in the board trace causing shorts. A good place to start. Hope you find it. Lots of Luck.

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1 Answer

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Disconnect all devices from the power supply EXCEPT the motherboard
Remove any extra cards including video etc.(plug monitor into the onboard)

If the PSU fan does not spin then time for repair / replace

If you hear any beeps these can indictate where the fault is.
either of these sites below will help you further with that

Beep codes Pc

More beep codes

Power up the pc and see if the fans are working.
If not then double check the power connections to the board.

If you still have no fans it is time to suspect the power supply as the probable cause.

If the fans worked then you should have gotten a display which told you there was an error and offering you a chance to go into the BIOS. ignore it and shut down the PC.

Now connect one drive only and boot again.

Repeat that until you identify the component that is giving you a problem.

Once you find the problem then remove or disconnect and carry on with the rest to see if another component might also cause a problem

If there is only one problem device then you may want to investigate that device further, Unless you don't mind replacing it

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1 Answer

I have customers overseas that have the EMACS HP2-6460P power supplies in their systems and they say that the systems do not shut down properly and they eventually unplug the power from the wall. What...


Hello,

I would ask the customer a few questions:

1. Do you have the computer connected to a power adaptor or is it a voltage switching pc?

2. Has the pc always done this? If not, have you changed any power setting in the control panel? (Or have the checked the power setting.)

3. When was the last time the pc shut down properly? Maybe the pc is trying to install updates and need time to finish the install. (If when powering off the pc you see a shield over the power icon from the start menu, let the pc run its course and it should power on/off correctly.)

Good Luck
C2Solutions

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2 Answers

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It never hurts to have a larger power supply, yes it have use 100watts more in a hour. But you should have better reliability with the 450W.
Mark

Apr 05, 2009 | System Power Supplies

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