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When the computer boots up the fans start but i can't get a signal on the monitor and the computer does not beep

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  • cr4t5 Jan 02, 2009

    Similar Problem. Installed new 1G DDR2 PC5300 RAM. Upon power up, monitor did not come on. Cycled monitor power, monitor shows No Signal. Swapped RAM for original, same problem.

    After a few minutes, computer beeps 3 times.

    Gateway desktop, Windows Vista.

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There are many possible reasons for this. You best bet for troubleshooting is to get the computer to a minimal configuration. Do this by removing all add-in cards, unplugging all drives (CD, Hard drive, Floppy), remove all memory modules but one. If the PC boots then add one device at a time until you find the one that is causing the problem. If it doesn't boot in it's minimal configuration then either the RAM you left in, the CPU, motherboard, or power supply is faulty. I would bet that it's either the RAM (try a different module), or the motherboard. If it's not the RAM (no modules work), then your best bet is to test with a known good power supply. If that still doesn't work then it's either your CPU or motherboard, most likely the motherboard, CPUs don't fail very often. Good luck!

Posted on Oct 08, 2008

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- You need to reseat all of your hardware inside the system like hard drive power and data cable,as well as the dvd drive cable, reseat also the video card and power supply cables. Make sure that you will tigthen the video cable screws. after this step- turn the system on.

-If the monitor does not response from anything, try using different monitor so we copuld isolate the issue.

Posted on Oct 08, 2008

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