Question about Dell Dimension 4600 PC Desktop

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Has no picture,computer makes a noise when turned on etc...

I let a kid that is in 2nd year computer classes work on my pc. He added a cd burner and a few other updates (he said). When I got it back, the computer, when plugged in makes a noise...not a hum but a noise. It doesn't sound like the computer is on though the lights are all lite up on the back and on the power button.
.There is no picture on the monitor at all. It is just a black screen. When I unplug the monitor, the monitor looses the communication , you can tell as it says to plug in your pc as soon as it is unplugged.
For some reason I was told to check that the ram was good. I've changed it but have the same problem. The kid says it worked great on his monitor. I've tried 3 other monitors. Also was told to check the video card. My husband tried 2 others in it, with no results. Do you have any suggestions?
Thank you~
Lori

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  • Frank
    Frank May 11, 2010

    power down the computer, open the cover, reseat video card, memories, and any other plugins.

    repower powerup the mchine.

    pst back what happen.

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If you tried with 3 different monitor, then the kid has done a bad job and eventually messed up with some critical system component.(CPU-RAM-Power Supply Unit-Video Card)
check if the CPU fan is spinning, if not this can prevent the system from turning on and you need to replace it.
the CPU might have overheated and therefore it can be permanently damaged.
I'd say it is probably a CPU matter, because the black screen means the PC is not passing over the Power On Self Test.
RAM can cause this too, but if you changed it, it is not a matter of RAM.
Video card is not likely to cause this.

I'd say try to remount the CPU and the heatsink properly, with proper thermal grease after deep cleaning with lint free paper or cloth;
(the only options remaining are: motherboard damaged with screwdrivers and grounding problems caused by spilled thermal grease.)
but first find out exactly what "upgrades" the kid did install, a defective PSU and/or unplugged CPU power cord can cause this.

Posted on Feb 13, 2009

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TO LORI

YOU NEED TO FIND OUT WHAT WHAT DID HE DO TO THE MACHINE. IF HE PUT A CD ROM BURNER IN IT REMOVE THE FROM THE SYSTEM, REMOVE THE DRIVERS, FIND OUT WHAT SOFTWARE HE INSTALLED AND REMOVE IT UNTIL YOU FIGURE OUT WHAT IS WRONG WITH THE SYSTEM. PUT EVERTHING BACK THE WAY IT WAS WHEN HE TOOK THE SYSTEM, IM ASSUMING BEFORE HE TOOK IT IT WAS WORKING FINE.
IF HE UPGRADED THE RAM THAN PUT THE OLD RAM BACK, WHEN IT IS ORIGINAL AND IT IS WORKING ADD 1 PEACE OF NEW EQUIP[MENT EVERYTIME AND TEST IT BEFORE MOVING TO MAKE SURE THERE IS NO CONFLICKS WITH THE SYSTEM AND SOFTWARE ISSUES, KEEP DOING IT THE SAME WAY EVERY TIME YOU WILL BE FINE AND YOU WILL NEVER HAVE COMPUTER PROBLEMS AGAIN.

AND DONT LET ANYONE WORK ON YOUR MACHINE UNLESS YOU ARE RIGHT THERE AND KNOW WHATS GOING ON AND IN THE MACHINE.

THE PARTS JUST APPEARD, THEY FELL OUT OF THE SKY, MAY FRIENDS GAVE ME THE MEMORY, I DID A FAVOR FOR SOMEONE AND THEY DONT KNOW THE DIFFERANCE.

JUST BEWARE AND BECAREFUL THE ARE LOTS OF COMPUTER PEOPLE ALWAY WILLING TO HELP OTHER AT NO COST.

ROD IS THE CANDYMANGANDY

Posted on Feb 13, 2009

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