Question about Sony VAIO VGC-RB40 PC Desktop

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Green light flashing on back of unit near power cord also green light flashing on motherboard near power supply plug in.

Sony desktop vgc-rb40 Green light flashing on back of unit near power cord also green light flashing on mother board near power supply plug in.

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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.

Posted on May 06, 2009

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Vaio desktop blinking power supply


Remove the side pane to access your motherboard cables, etc. Locate the connector on your motherboard that contains the wires going from your power supply to your motherboard. It will be a large, rectangular connector with a lot of individual wires It is not a ribbon cable but should be located next to a ribbon cable connector and next to a green blinking light on your motherboard (when the power supply is plugged into the wall). Note: This green blinking light is in addition to the green blinking light on the back of the PC.

This next step is important: You have to disconnect the connector noted above from the motherboard WHILE the power suply is plugged into the wall. Wait a few seconds and plug it back in. The blinking reen light on the motherboard should now be a solid green light. The PC should now power up.

If the steps above don't work you will need to get a new power supply.

May 19, 2012 | Sony VAIO VGC-RB42G PC Desktop

1 Answer

My Sony Vaio VGC-RB40...does it have a PCI-Express slot?


http://www.amazon.com/Sony-VGC-RB40-Desktop-Pentium-Processor/dp/B0009HIVSW


look up your number pc and specs in google i found this,
x16 PCI Express (available), x1 PCI Express (available)

Open the case see if there is eather 1 or 2 yellow bleu or green slots, the long ones with a clip on the back, agp are usualy brown.
If you put a card in remember to clip it and when you remove the card unclip it.
Before you damage the slot.

Good luck!

May 02, 2012 | Sony VAIO VGC-RB40 PC Desktop

1 Answer

My computer wont turn on,on the back i see a green button flashing.


Unplug the white mother board plug two three seconds plug back in should be ok

Sep 05, 2010 | Sony VAIO VGC-RB40 PC Desktop

1 Answer

I installed new memory cards 2GB but after that the computer won't turn on, what it could have happened? There is a green light that is blinking buy the electricity cord. Could somebody help me please.


You may have bought the wrong modules. You may think they are plugged in right and not. Is there a beeping sound? How many memory slots do you have?
Are you plugging in just one stick? You may need to put in pairs. Put in the older 1 meg strips and make sure she still boots. You cannot mix 1 meg with 2 meg on a single bank. there is a Bank A0 A1 B0 B1 - make sure to put same in A's and same in B's. I know you will work this out, but make sure your motherboard can accept 2 meg Dimms ( DDR2?)

Apr 10, 2010 | Sony VAIO VGC-RB40 PC Desktop

3 Answers

Sony VAIO VGC-RB42G - No Power; Blinking green light on power


Try a different known working power supply on that computer, the green light on the power supply should be constant and not blinking. The green light on the motherboard shouldn't be blinking either but if its not getting the right voltage from the motherboard then it will blink as well.

Get a different power supply and see what happens. At that point the power supply green light should be constant, if its not then your motherboard is faulty at that point, if yout the green light is blinking on your motherboard, if both are constant then reseat the memory and CPU and only have the power supply hooked up to the motherboard and not to anything else.

If you still can't get video then at that point you know the motherboard is definitely bad.

Aug 30, 2009 | Sony VAIO VGC-RB42G PC Desktop

3 Answers

Blingking light on my motherboard, no power.


Chances are your power supply and computer is fine! From other forums on this problem (which I also had), I've learned the following:
1. If you unplug the computer for a half hour or so (the blinking green light will gradually slow down and quit) and plug it back in, the situation will correct itself and the green light will be steady; however if this does not work,
2. a reset that works for a lot of people with the blinking light problem involves leaving the power supply plugged in and unplugging the power supply connection at the motherboard (it usually also has a blinking green LED) and plugging it back in. To read up on how to do this, Google "blinking green light on computer power supply" and read through some of the forums and you'll come on more specific instructions. Usually, you have to wade through everybody telling you to replace the power supply or your motherboard is fried. It's worth a try for a quick fix, just in case those situations don't apply!

May 30, 2009 | Sony VAIO VGC-RB42G PC Desktop

1 Answer

Sony Tower green light blinking


Could be a bad power supply or a bad motherboard.

Mar 21, 2009 | Sony VAIO VGC-RB42G PC Desktop

6 Answers

Computer wont start up. Blinking green light in the back of tower


I've had that happen twice to my Vaio desktop and there was a very easy fix. I'm not a techie, but I found a recommended solution online when this first happened six months ago. I couldn't find the solution again, but I fortunately remembered the steps.

Remove the side pane to access your motherboard cables, etc. Locate the connector on your motherboard that contains the wires going from your power supply to your motherboard. It will be a large, rectangular connector with a lot of individual wires It is not a ribbon cable but should be located next to a ribbon cable connector andnext to a geen blnking light on your motherboard (when the power supply is plugged into the wall). Note: This green blinking light is in addition to the green blinking light on the back of the PC.

This next step is important: You have to disconnect the connector noted above from the motherboard WHILE the power suply is plugged into the wall. Wait a few seconds and plug it back in. The blinking reen light on the motherboard should now be a solid green light. The PC should now power up.

It worked twice for me; I hope it works for you.

Mar 05, 2009 | Sony VAIO VGC-RB42G PC Desktop

1 Answer

Sony vaio desktop wont turn on


This type scenario normally indicates a power supply failure. Try connecting a known good power supply to your Sony Vaio desktop.

If you do not have a spare power supply, (many people do not) the alternative is to short the the black and green wire on the power lead connecting to the motherboard using a paper clip. This is not a desirable solution and very dangerous, but will help to diagnose the problem. Do not insert any objects while the power supply is energized. Ensure it is unplugged first.

Should the computer start with the green and black wire shorted, the problem is with the power supply. If not, the problem is likely at the motherboard level.

Hope this helps you.

Dec 29, 2008 | Sony VAIO VGC-RB42G PC Desktop

2 Answers

No power, power supply & motherboard green light blinking


I had the same exact problem for the same exact reason. Plug the power cable into the back. Open up the side of the case and unplug all the wires that the power supply plugs into. The motherboard, harddrive, cd & dvd drives, everything. wait about 10 minutes and plug them back in, plugging the BIG cable that connects to the motherboard back in LAST. This will make the light go from blinking to solid. I think it is a safety? to protect the motherboard from damage.

Nov 01, 2007 | Sony VAIO VGC-RB42G PC Desktop

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