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Computer will not start-- Checked power supply and install new motherboard.

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  • Dell Master
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One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty

make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty or just replace them they are probably old and faulty ?
hope this helps

Posted on Dec 31, 2010

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Posted on Jan 02, 2017

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My computer burned 2 hdd


After i Read your Explaination,i really sure if the Problem is at your Computer POWER SUPPLY.
Change your Power Supply to Higher Watt.
i Recomended to you to Using SIMBADA Power Supply ATX.
and to Fix your HDD bad Sector,Try to use LLF (Low Level Format).
LLF will destroy all data and Partition.So after you Format using LLF,you need to make a New partition at your HDD.
LLF is Working for me to Fix Bad Sector in a So many times.

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Loud bang from system.Unit starts immediately power is supplied.Power switch does nothing.H/Drive and players run.No video ( card OK ) checked with another card. Can the problem be motherboard?


The load bang is most like an exploding capacitor in the switch mode power supply, especially if there is a burnt electrical smell from the power supply.
I suggest you borrow a switch mode power supply, remove the old power supply and install the replacement power supply. make sure it has the same or larger wattage unit.
If the computer still does not boot up then the exploding power supply has damaged the motherboard, and you need to replace then motherboard too. This may not be a cost effective solution.
This is an opportunity to get a new and better computer.

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Suddanly computer can not started. i checked RAM Powe supply etc. but problem is still.....


if you can see displays on your screen after pressing power button and it disappear after awhile, then you need to repair or re-install your OS ( it's already damage).

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you sound like youre familiar with computer. but have you checked your ram? back in the day there used be jumpers. i dont believe this newer model would have anything like that but doesnt hurt to check. also are the power supplies compatible (enough juice)? usually when i try and narrow down an issue i unplug everything cdrom, video card, one stick of ram at a time, etc.. i know this isnt a solution but hopefully it helps you to troubleshoot.

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Installed new dell motherboard per tech, installed new Dell power supply as it died too. This is a Dell Dimension 2300. It won't start.


Check all connections, to the motherboard, and also to the wall Verify that the power supply is actually switched into the ON position at the rear of the computer.

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My HP a420n won't start after replacing cd-rw drive


Please try to remove all the connections from your computer and also connections inside the motherboard, the power cord for your hard drives and also the power cord from the power supply to your motherboard.After that, remove the memory and clean the pin by using an eraser of the pencil. And then insert again the memory stick and connect all the connections from the power supply to motherboard and everything. Lastly reset your bios and put it back to normal again. Hope this would help. Thanks..

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Bios upgrade on the board, or video card. And have you had the mother board checked to make sure all the caps, v-regs and everything are fine?

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Computer keeps re-booting while installing any operating system


Were the two power supplies you tried inclusive of the original failed drive or not. In other words did you try a total a 3 power supplies including the one that failed?

If not, please do so. That is, immediately analyze the original known part failure, the power supply or its connection to the board(s) you have tried.

Congratulations for such an exhaustive process of elimination.

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The power supply is fried partially, or the motherboard went poof.

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the new hardware installed is incompatible with the computer, remove it and your computer will boot to windows.


uzowuanya
e-mail:uzowuanya@yahoo.ca

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