Question about Sony VAIO Digital Studio PCV-RX650 PC Desktop

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Two beeps when powered up, screen stays black. Ive removed the RAM cards an reseated them, switched them around and removed a few-----several times now. What next? Could it be the battery on the board itself?

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Unplug the power cables from motherboard.

then replug. try that. you RAM could also be faulty, which in that case you might need to purchase new Ram

Posted on Oct 16, 2010


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Gateway PC GT5028 cpu fan comes on and stays on, but the computer does not boot, the screen is black and there are no beeps. I have replaced the power supply and the video card, but no joy. I also...

Just try putting your memory stick 1 at time, then on the pc, check each memory likewise mentioned. If this dosn;t work, trying taking out all the hardware attched to the motherboard, including hard drive, cd-rom. Now just try with to on your motherboard with basic hardware, video card, single ram. Hope you will find the problem, isf it is of luck.

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Isolate the problem in the following order:

1. Make sure that your display monitor is working fine by checking it on another computer. Try to check the display cables from the PC to the monitor as well and make sure they are connected properly.

2. Check the RAM. If there is a problem with your system RAM, it will normally give certain indications like a series of beeps. Try to power on your PC without any RAM installed and you should hear a series of beeps. Count it and try to compare it by turning on the PC with the RAM installed. If it gives the same number of beeps with the RAM installed, then you most probably have a problem with your RAM. Sometimes, this problem could be resolved by reseating (removing and installing) the RAM. Take note that you should unplug the power cable before performing this step.

3. If your system has a built-in VGA display then skip this step. If your desktop has a VGA Card (the one connected to the monitor) then try to reseat this as well. Most of the time, especially on compaq machines, the VGA card has a tendency to get loose during shipment.

4. On rare cases, i encountered problem with the power supply. Check that the input voltage you're using is correct. Some desktops have 220/110V switches on their power supply. If it is switched to 220V and you're home electricity is 110V then you'll get undervoltage condition and therefore improper voltages will be produced. Please make sure about your home electricity rating, as making mistake here could cause a damaged power supply.

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Open up the PC and reseat any connector and modules a few times. Concentrate on the RAM and Video Card if it has one, removing and reinserting them at least 5 times.

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If it still doesn't work then there are a few possibilities. The three components that have most likely failed are power supply, RAM (memory), or motherboard. If nothing happens, no lights or beeps, then it's probably the power supply. If the machines turns on but doesn't do anything then it's most likely the motherboard. If it tries to boot up but stops and gets stuck or if it stops at different times then the memory is most likely faulty.

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Check the ram on board, reseat it and try again. Sounds like a memory problem to me.

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