Question about Abit KV7-V Motherboard

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Power On trouble with Computer

Earlier this week the power supply died requiring me to change the 400 W to 550 W and even thought the motherboard is getting power (the lights come on and couple of times the computer started only later it shutdown automatically without any symptoms (burn smell or any faulty connection). I have tried several times to connect few peripherals to the motherboard and startup but the power comes on and within 2-4 seconds the system shuts down unexpectedly. Kindly help me to resolve this issue -

thank you,

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Re: Power On trouble with Computer

If don't you have any beeps check maybe the power button stack.
If the power button pressed for four seconds then the computer normaly shut down.

Posted on Jan 11, 2008

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Connecting power supply to motherboard

Hi There

This guide was developed to instruct readers on the proper procedures for installing a power supply unit (PSU) into a desktop computer case. It includes step-by-step instructions with photographs for the physical installation of the PSU into a computer case.
IMPORTANT: Many name brand manufacturer PCs use specially designed power supplies that have been built specifically for their systems. As a result, it is generally not possible to buy a replacement power supply and install it into these systems. If your power supply is having problems, you will likely need to contact the manufacturer for repairs.
CAUTION: All power supplies contain various capacitors inside of them that retain power even after the power supply had all power turned off. Never open up or insert any metal objects into the vents of the power supply as you can risk electrical shock.
To start with installing a power supply, it is necessary to open up the case. The method for opening the case will vary depending upon its design. Most new cases use either a panel or door while older systems require the whole cover be removed. Be sure to remove any screws fastening the cover to the case and set them aside.
Align the new PSU into place in the case so that the 4 mounting holes align properly. Make sure that any air intake fan on the power supply that resides in the case is facing towards the center of the case and not towards the case cover.
Now comes one of the most difficult portions of the power supply installation. The power supply needs to be held in place while it is fastened to the case with screws. If the case has a shelf ledge that the power supply sits on, it will be easier to balance.
Make sure that the voltage switch on the back of the power supply is set to the proper voltage level for your country. North America and Japan use 110/115v, while Europe and many other countriesuse 220/230v. In most cases the switch will come preset to the voltage settings for your region.
If the computer already has the motherboard installed into it, the power leads from the power supply need to be plugged in. Most modern motherboard use the large ATX power connector that gets plugged into the socket on the motherboard. Some motherboards require an additional amount of power through a 4-pin ATX12V connector. Plug this in if required.
A number of items reside within a computer case that require power from the power supply. The most common device is the various hard drives and CD/DVD drives. Typically these use the 4-pin molex style connector. Locate the appropriate sized power leads and plug them into any devices that require power.
At this point all of the installation and wiring should be completed with the power supply. Replace the computer cover or panel to the case. Fasten the cover or panel with the screws that were previously removed to open the case.

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Dec 12, 2011 | Motherboards

2 Answers

My computer froze up one day. The green light on the mobo stays lit all the time now. I've replaced the cpu, RAM and tried different video cards, but it still won't boot up. I even got a different ASUS...


I think you have just about covered everything by testing the hardware out on a different system. The only vital thing that you haven't checked is the PSU (Power Supply Unit).

Get another power supply of the same type and try that in your system as faulty PSU's can cause these problems even though the motherboard is showing that power is being received, it could be showing a false positive.

Please let me know how you get on and if i can provide anymore assistance.


May 28, 2010 | ASUS K8V-MX Motherboard

2 Answers


The wattage rating is the maximum power draw that the power supply can supply. If the system only requires 200W, only 200W will be delivered by the power supply. It is recommended that the power supply rating be higher than what you expect to draw so that you never draw more than 80% of the total capacity. In other words, if you expect to draw 240W total, use a 300W power supply.

So, yes it is fine.


Jan 13, 2010 | ASUS K8V-MX Motherboard

2 Answers

PC won't boot up.

recheck all connections, make sure the switch on the back of the power supply (if it has one) is set to the on position. there is a chance the motherboard has failed. with the power off examine the capacitors on the motherboard, especially the ones near the cpu. if they feel rounded on the top they have failed. unless you are good at soldering... consider buying a new motherboard.

Sep 23, 2009 | Intel D865GBF Motherboard

1 Answer

When I turn on the power to my laptop, tries to turn on but dies

According to me, you should check your power adapter. I think it is not working and is not producing sufficient power supply for your laptop. And due to this, your laptop have not been charging.

Jan 17, 2009 | Intel Motherboard

1 Answer

E machine won't turn on

you have to be sure about power check outlets power and power supply with power supply tester you can get that on any computer store i get mines from fry'z electronics after you check that probably not have to do any other test to me is the power supply if any of the out lines from power supply is bad you can have that problem the out lines have 12v 5v 3.3v and 3v so check that

Dec 28, 2007 | E-Machines (308714) Motherboard

1 Answer

Will not accept new agp video card

Did you try and change the power supply? Maybe the power supply is faulty since u say it keeps rebooting. Since you do not see anything on the screen (the bios is not executed, could b a problem with the power supply. Do you get any beeps?)

Dec 24, 2007 | Asrock 775VM800 Motherboard

1 Answer

Not booting, no power

There are 4 major components that can die:

1. Power supply.
2. Motherboard.
3. Processor.
4. Memory

It is more likely that the motherboard died to. Thing is that as you buy the components to fix the problem you might get to a cost of a new computer all together.

Dec 20, 2007 | EliteGroup MB|ECS 865G-M V5.0A 865G MB...

1 Answer

Does not power up

I think you've done a good trouble shooting job, and proved that the board is dead.

Oct 20, 2007 | Asrock K7VT2 Motherboard

1 Answer

Boot Issues

I've seen the same problem fixed it with new power supply. The old one was losing full power.

Oct 08, 2007 | EliteGroup NFORCE4-A939 (NFORCE4A93910)...

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