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Solve : troubleshoot no signal dvi and vga? |
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Answer» CPU fan turns on but SUDDENLY it turns OFF for a few second.. then it turns ON again , the monitor is "No signal VGA and DVI" then automatically it turns off system unit does not turn off by clicking power button .. so what i did is to unplug directly... what should i do to resolve these thank u for READING my post ...From your description of the problem it appears that you are in a boot loop-your computer powers up, tries to POST, but fails and starts again. There are many possibilities which range from a faulty power supply/motherboard VRMs not providing enough voltage causing the computer to reboot when it draws more power to boot into the OPERATING system, to a faulty BIOS (for example the notorious GIGABYTE GA-EX58-UD5 C1). What I would suggest right now is to borrow a known working power supply of the same wattage that you have now, to disconnect any peripherals from your computer and to attempt to boot with only the Motherboard, the CPU, and one stick of RAM.never never just unplug your comp while it is on hold that button until it turns off. If you get it back get into your bios and check settings. To be safe select optimized settings save it and exit maybe that will help get your video and signal back.........................gjmay Quote from: glad on July 09, 2012, 01:54:28 AM CPU fan turns on but suddenly it turns OFF for a few second.. then it turns ON again , the monitor is "No signal VGA and DVI" then automatically it turns off system unit does not turn off by clicking power button .. so what i did is to unplug directly... what should i do to resolve these Replace the cpu fan. If the monitor is new try using a dvi to vga converter if you have a vga port in your computer, if not get a pci vga or pci express, vga or dvi graphics card. Sometimes you need to hold down the power button to shut down the computer, if it doesn't shut down this could mean u need to set it in your bios it could also mean the settings or cables on the BOARD are not properly configured it could mean alot of different things but we don't know the type of machine or model number of the motherboard or the condition of the machine, or steps taken that lead you upto this point.Please disregard the above post. I suggest you start by replacing the power supply as a first step. There's now way to know for sure, but from your description of the problem that's the most likely culprit. i noticed that some of the capacitors are already damage or blown >.<Stop using it immediately... |
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