Question about Gateway Essential 500 PC Desktop

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Power supply Someone moved the togle from 115watts to 230 watts and then tried to turn on . Now even after moveing it back to 115watts it won't turn on. I figure the power supply is lost but has the computer been harmed in any way ?? And why does a mistake like that burn the power supply ??

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Re: power supply

Well all the Benimur's suggestions are mine too. As Benimur is a good professional. Try this too: On the motherboard you can find a small coin sized battery (button cell). This serves as the backup of BIOS settings and system calender. Remove the battery, and short the leads with a screw driver or something... Then try to switch your machine on. If it works, just replace battery with a new one. Otherwise put it back and get your motherboard serviced. All the best.

Posted on Oct 06, 2007

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Re: power supply

Hi, There shouldn't be any problem. Normally it should work straight out once switched back to 115. I expect the PSU to be toast if it were the other way around 230 to 115 and not in your case of 115 to 230. In any case, it is possible that the motherboard plus other devices were affected but possibly also unlikely. The power supply would suffer the brunt of the voltage difference, switch off or get busted before it can cause damage to the motherboard. You can try switching it back and forth 115 to 230 a couple of times while unplug. Makes sure the last moving to 1125 be snap and you should hear an audible click (of locking in place). If after all tries and the unit still is dead, then you have no other option but to try and replace the PSU. Good luck and kind regards.

Posted on Oct 02, 2007

Re: power supply

Try this, (with the slider in the right position)remove the power cord from the P.S. and push the power button for 5-10 seconds. This will usually dissipate built up charge on the system board and P.S.. Then plug it together and try it with the slider in the right position. Also, try unplugging everything except the MLB, to see if it will beep (post). If so, power down and plug things back in one at a time...

Posted on Oct 02, 2007

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1 Answer

Have a E-Machine that keep displaying in powersave mode

eMachines are a budget computer.

Designed to save the consumer money.
One of the items used that cost is saved on, is the Power Supply.

Power Supply is generic, and of low quality.
1) Low quality Electrolytic Capacitors
2) Low quality Power MOSFETs
3) Low quality Rectifier Bridge
4) Too small a gauge of wiring is used

Plus most consumers do not keep the inside of the computer clean, and if they do the Power Supply is usually neglected.
The two leading causes of desktop computer failure; the computer is dirty inside, and/or the Power Supply is bad.

With a weak voltage power rail you may see LED's light, and maybe fans spin, but there won't be enough power to turn the Processor on.

[No Processor operating, no computer. No computer = no video signal to the monitor. No Signal, Power Saver Mode, or Sleep Mode is indicated ]

1) If ALL of the LED's were lit up they would use less than 1 Watt of power.

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

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

See if there is an unused working computer that has a KNOWN to be good, Compatible power supply; that you can use for a test unit.

Or use a multimeter to test the three main voltages, coming out of the Power Supply
3.3 Volts (DC) [ Orange wires ]
5 Volts (DC) [ Red wires ]
12 Volts (DC) [ Yellow wires ]
[ALL Black wires are Ground wires ]

For additional questions please post in a Comment.


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I moved our computyer from downstairs to upstairs.

Power supply is bad,,

You can try to unplug the main motherboard plug, then plug back in,, It should last as long as it stays pluged into the wall.

Keep it pluged in when you do this,,

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Ok i neeed help!!!!!!!! on my power supply there is a switch which you can move to 115 volts to 230 volts. everytime i switch it to 230 volts the computer wont turn on? why is this happening? when i put it...

This is the power supply for your PC, depend on your local country power supply, some country like North US may use 110 V in their daily use electrical stuff and some country like Euro, UK use 240 V.

Your PC power supply is design to suit this 2 type of power input so can be sold everywhere. What u need to do is to make sure your local country power supply voltage and then just switch the input correctly, i think u have done it.

YBC (/\)

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Unless your household electrical service is running at 230 volts, there's absolutely no reason to set your supply for 230. When you choose the 230v setting the supply REQUIRES 230 volts to become operational...Which is not going to happen on a 115 volt service.

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Hp a6314f won't turn on , there is no light on the back of it. i tried unplugging all cords and moving to a different outlet, but still not working , i think it is my power supply . the computer made a...

It is your power supply. If you are good, sometimes you can replace the fuse. To do this, you have to remove the power supply and open it up. You have to remove the circuit board, if it is the fuse, and unsolder the blown fuse then resolder a new one. Use a heat sync or you will melt the new fuse. If it isn't the fuse, you need to replace the PS. If that's the case, go to one with more watts. They are easy to replace, just be sure you have the right orentation and screw alignment.

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It will not turn on, there is a green flashing light at the back

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When i press the power on switck at the front,

No 115 would not blow the power supply it would just provide less power. Look at the motherboard for pins that say CMOS on them. Move the small plastic piece on top of the CLR pins and then count to 30. Once you have move them back and then test the machine.

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It could be a bad power supply. As far as I remember, this unit has a standard ATX 230 watt power supply. It should not be too hard to replace it. Its fairly straight-forward. Its a matter of removing the panel to access the connectors inside (make note of which comes from where) and unscrewing the power supply on the back of the unit. Reverse all actions to install new power supply. If you need more detailed help, reply to this post.

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No Power!!

Double check the switch in the back of the pc on the power supply. If their is a switch, you can try it in both positions. It is possible their is no switch, older compaq's are iffy. The switch will be black. Also check the 110/230 switch. I don't know what country you live in, however you may need to make sure that switch is in the appropriate spot. 110 for USA and 220/230 for UK

Also, try unplugging your pc. Let it set for about 1 minute. Plug it back in and try again.

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