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No power to motherboard

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Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Posted on Nov 09, 2014

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Posted on Jan 02, 2017

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What is the maximum power rating of this motherboard?


What do you mean, "maximum power rating"? Motherboards have no power of their own, they are powered by a power supply which can vary in watts produced. Motherboards have no "power rating". Your question cannot be answered because it is incorrect.

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Intel desktop d845epi in the motherboard is not powering on.plz send a solve procedure.urgent


computer not power on can be caused by 2 thing, first is your power supply was dead, and the second is your motherboard was broken
try to connect another power supply, if your motherboard can power on it mean your power supply was dead if still not power on it mean your motherboard was dead, change the motherboard with new one

Mar 18, 2011 | Intel Desktop Board D845EPI Motherboard

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Bought a new power supply and still my biostar p4tca pro motherboard isnt letting it to power up? all wires are hooked up right. now thinking the motherboard is bad? anything i can do to prove that this is...


Make sure that the 20-pin ATX connector and the 4-pin aux. power connector are securely plugged into the motherboard and that the power supply's switch is in the "On" position. If the problem persists, you can try testing the power supply with a different motherboard and computer. If the power supply powers the other computer, it is likely the motheboard that is bad and not the power supply.
Hope this has been helpful. Good luck.

Mar 01, 2011 | Biostar p4tca pro Motherboard

1 Answer

Powr supply checks out with tester, but when plugged into a BRANDNEW motherboard. Flashes green, Power switch is in and fans are in. Is it possible for P/S to be bad only when drawing from board?


There are many possibilities here. The motherboard could be installed incorrectly causing a short. The motherboard may not support the processor. A hardware device plugged into the motherboard may be shorted. The power supply may be defective under load ( when plugged into everything). No memory is installed on the motherboard. The power supply is too small for the motherboard that was installed. The first thing to check, is to plug in the motherboard connectors only with memory installed then try to power up. If at this point it will not power up, then you have a problem with the power supply or motherboard. If it powers up at this point, then plug in one device at a time starting with the hard drive and try to power up. If it continues to power up, plug in another device. If this process continues work, then you will find that either you have a shorted device or your power supply will not support the motherboard and all of the installed devices. It is also possible at this point that the motherboard is defective, by using more power than it should causing an overload on the power supply with all devices plugged in.

Dec 27, 2009 | HP ATX-300-12Z (ATX30012ZBD) 300-Watt...

2 Answers

Will not power up


This is a common problem with Emachine motherboards, the problem is the power supply is a best tech and allows voltage surges to the motherboard which fries it too. If available you usually have to replace both the power supply and motherboard. I do not know what exactly goes bad on the motherboard but I have replaced many emachine power supplies and motherboards. The motherboard kit which used to be available from Emachines included a power supply and no warranty if you didn't change the power supply. They knew they had a problem.

Dec 27, 2009 | E-Machines (308714) Motherboard

2 Answers

AOpen AX4BS motherboard front panel connections & power on.


That model motherboard does not support on/off control of the power supply. Refer to the output diagram on the power supply, and there should be pins in the connector (not used on your board) that may refer to the on/off control. Those pins should be tied together. Then the PC will turn on via the main power switch, and will require a manual turn off when the display says its ok.

Oct 24, 2009 | Acer AOpen AX4BS-V (91.89J11.001)...

1 Answer

My motherboard can't turn on and me had changed power supply with new one.Can you help me how to check power on motherboard.Thank you. I bought a new case for my ATX motherboard. I installed the power...


the chances are that the power supply is not enough for the motherboard. or the main power connector has only 20 pins. the newer version of motherboards requier 24 pin power connector.

Mar 24, 2009 | Computers & Internet

1 Answer

No power


Make sure you got the power switch plugged in the right front panel connector
make sure the ATX_12V is plugged in as well as the ATX

Oct 07, 2008 | ASUS P4SGX-MX Motherboard

1 Answer

Problem motherboard no power


Motherboard was generated by power supply to running it.. If there is no power when you click the power on, it may caused by the power supply unit problem

Sep 21, 2008 | Gigabyte 8VM533M-RZ (GA-8VM533M-RZ)...

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