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PC comes on but it does nothing. No beep and nothing on my screen

System fan comes on but nothing comes out of my screen. memory, processor, psu and other removable parts has been tested to other unit and they are all working. I think it's the motherboard, what could be the problem?

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Check if there are any blown or leaking condensators on the board. It is a very common problem and easy to fix for someone with some skills. If you do not find anything most probably is some microcircuit defective and it is not worth it to investigate more.

Posted on Oct 06, 2009

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On start up fan runs, no beeps, black screen, no response from keyboard & mouse. Unplugged everything for 30 minutes, then tried again, start up began then went to black screen, no keyboard, no m


in your case, there might be some problem with the main board.
usually no beeps will related to the processor error / mainboard error / ram error / PSU error

to check the processor : try to exchange the processor with the same type.

to check the Memory: try use rubber eraser to clean the cooper plate of the memory. then plugged it again.

in case if there is a power supply error, then try to exchange the power supply using other PC PSU.

if all steps above are checked, the problem might be at the mainboard. in that case, replacement will be the best option.

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Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect/ boot up a computer hard drive

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

the leads from your "((MOTHERBOARD TO THE HARD DRIVE))" make sure they have a secure connection and are not faulty or just replace them they could be 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 even the electrical extensions or just replace them they could be faulty a computer needs its connections to continue its cycle and have an end so any faulty leads will end up with a computer error hope this helps

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Hi my hp pavilion laptop DV5000 on start up has black screen and one long beep then 3 shot beeps then one long beep and another 3 short beeps. The lights stay on but nothing happens. The pc has been...


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Relace the psu it's a dodgy Bestec ..replace it with a winpower psu 400 watt , they are cheap but they work better.

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check the (memory) ram chip, keyboards, and mouse for faults then try again.

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Loud fan blank screen andthe fan is lousd.


check your memory, processor, PSU (power supply) and your motherboard, any one of these components could be the problem, if its intel it will be the processor or motherboard, if its AMD its no doubt memory or PSU. quick way to sort the problem in most cases is to reset the cmos/bios, this is situated near the battery on the motherboard in the pc ( if you have it right the pc will not turn on when you press the power button ) put the plastic jumper back in the possition you found it and restart your pc. if that doesn't work then look into what i said above

good luck


PS use a torch to see where the cmos reset is

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Only fans are starting - nothing else


Hi,
Have you checked the CMOS/BIOS Battery? How about reseting the BIOS jumpers?

Test the system using Motherboard with processor and 1 RAM, just connect power and screen only, switch it on. It it fails try another memory... Whether the memory, board of processor is the problem.

Fixya me when done....

Post me back if it doesn't work...

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A7V8X NOTHING HAPPENING,


When a power supply goes out the way yours did, it's going to fry the MB 99% of the time. So you're going to need a new MB. It's possible that you CPU is ok, but that could also go too. I would replace the MB first, then the CPU if that doesn't work.

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