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Qdi motherboard only 200watt power supply hooked up and the 4 12v pin is not hooked up computer turns on but moniter doesnt

I have a qdi motherboard and i put a 200 watt power supply in it well it needs to have a 4 12v power hooked up and the moniter wont turn on or none of my drives but the computer turns on

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You need min 250w power supply with the right connector.
do not try to splice any of the power wire. it will work but you will get burn later.

Posted on Oct 14, 2008

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Not a problem. The 'missing' pin is used as an orientation key. that pin end of the connector is the ground side (shield on cable). Opposite end is the 5 volt supply for the USB device.

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It'2 second time that power supply 235 w is fault? possible need 300 W?


You should look at getting a power supply at about 450 watts + it should give you all the power you need.

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Problem with power


Make sure the power cables are plugged into the pins properly on the motherboard.

Once you do this then go ahead and reseat the power supply connectors to the motherboard. Only hook up these two connectors from the power supply for now.

Try turning on the computer and hopefully you will get it to turn on now. If you can't then make sure the switch on the power supply is set to 115v. Once this is done try turning on the computer again.

If you still can't get it to turn on then try a known good working power supply or new power supply. If it still doesn't turn on then you know at this point that the motherboard is bad.

Aug 16, 2009 | MSI MS-6523 Motherboard

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Blue power light does not come on when i turn the comp on


there is either a motherboard/cpu issue (worst case), or a power supply issue (best case, cheap and easy fix)...

without being there looking at it i can't really tell you more. if you happen to have a spare ATX power supply, open the machine and plug it in to the system instead of the old one to see what happens.

if you don't have a spare, you obviously have another working computer you're posting from so maybe borrow it's power supply and see what happens.

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QDI kudoz 7 mauanl wanted


this time your got have a spammer, i tell you read the USB port at the motherboard then put the wire connection there

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I unplug my hard drive and now I cant get my computer to start up


Try switching your power cable with te one from another pc, if that doesnt help check wether the on/off button on your power supply is turned on. If that doesnt help either I'll need more info about what those lights indicate.

Feb 17, 2009 | Compaq (261671-001) Motherboard

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Hard drive power


I have seen this only when the Power Supply is underpowered.
You may have a 200Watt or 300Watt PSU and the drive is pushing you just over the edge of what the supply can deliver.
Even if the power supply is big enough - it may not be delivering the 'Rated' power. That's the first thing I'd look at- because your symptoms are an exact match..

Oct 09, 2007 | ASUS P5LD2-VM Motherboard

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