Sony Vaio VGC-RB43 is flashing and computer will

Go to Windows Updates and see if there is an update their sometimes that happens with drivers. Start there Updates and install all the updates hardware updates as well. If that does not assist you there may be a fix at the Sony Vaio support drivers and download for your driver start there. I would download the driver online for the wireless software. Click Here to go to the driver site enter your model and info they request and download whatever you need from there. This should get you up and running again. I hope that this assisted you. Note download the Network anything that has to do with wireless Lan John

Amazing. I have the same computer and the same thing just happened to me. The computer works and if I press the sleep button I can see the screen for about 4 seconds.

Open the power supply case (be careful due to high voltages within the power supply) and look for swollen (tops are domed) or burst capacitors (tops have cracked open due to excessive swelling and the electrolitic fluid has leaked out). We have found this to be a regular problem for systems that have been running constantly for a long period of time. Also, look at the power caps on your mainboard (big ones nearest the CPU) and check for swelling or bursting. I just had tis issue with a Sony Vaio in that the caps in the power supply had started to swell. The system continually rebooted. Have seen the caps on MB's burst as well.

Hello,

Sometimes after a power outage, some power supplies can take a hit but will not provide the needed voltage to operate your pc. In this case you should replace the power supply. For future protection, connect your pc to a power strip or power source with surge protection. This will range in price from $7 to hundreds depending on how much you need to protect and your budget.

Good Luck
C2Solutions

if able u can reboot by accessing start button and clicking turnoff and choosing restart. some pc's have restart button under power button. if not you can shut it down by holding pwr button for 10 seconds. some computers will not reboot if your hardware abstraction layer (HAL) was corrupt. if so you have to reinstall it. u can just follow help options in your pc help by pressing F1 and seraching for HAL.

You may possibly have a bad video card and a bad circuit on your motherboard. I would have the motherboard replaced. Some motherboards come with video cards, so once it is replaced, you may alerady have a new one with the motherboad part. If you not versed in doing this, you may want to get a professional to do so.

Try reseatting / swapping the memory.

How long ago did you purchase this desktop?

use google to find it....

I would suggest trying to replace the power supply. If that does not fix the issue, i would need to hear more about the computer.

try starting it with the operating system disk in it, and do a reinstall, might help, or clear it up....if it fails, could be your power supply going out....hope it helps...shia