Question about Sony VAIO VGC-RA710G PC Desktop

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Power switch does not work

Hello, my power switch on the front of the case does not work on this sony. I was hoping maybe to bypass the switch. The case, being a sony, is of course nonstandard... Anyone have any experience with this?


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I think the wires of power switch is disconnected or not connected properly better to check it once but becareful turn off all the connection & remove the cpu

Posted on Jun 06, 2008

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Power switch will not work

"She's kinda got a little age on her Captain" (Scottie / Star Trek)

The computer is old enough that I'm betting the Power Supply is bad. However could just be the Power On switch.

Gonna' be a long read, better put the coffee pot on.

There is a simple test to see if the problem is a $5 Power On switch, or the Power Supply.
Involves bypassing the Power On switch.
Does NOT involve the wires of the Power On switch, nor the switch itself, however.

The Power Supply of your computer is a converter. It converts 100 to 240 Volts AC, to three low DC voltages;

A) 3.3 Volts DC
B) 5 Volts DC
C) 12 Volts DC

In comparison two D cell flashlight batteries produce 3 Volts DC.

Stated in case there was concern about getting shocked.

Let's go to HP Support;

HP Support > Pavilion a735w Desktop PC > Main Support page,

A look at the motherboard; (No hardware installed, Top View),

Product information > Product specifications > Motherboard Specifications, A7V8X-LA (Kelut),

Scroll down to the motherboard layout illustration, and motherboard photo.
In the layout illustration look at the right side. Look at the vertical (Rectangular) 'box' with ATX Power Connector in it.

Looking at the motherboard photo you will note, it is a whitish connector with two columns of 10 socket holes.

You will see it has a 20-pin ATX main power cable in it, like this general example, (NOTE* Color does NOT matter for connectors),

The ATX main power cable will be plugged in, as shown by the photo to the far right.
A jumper wire is used to bypass the Power On switch.

The preferred jumper wire is a straightened out paperclip, bent into a U-shape.
The top of the U, is wrapped a few times with black plastic electrical tape. This taped area is for your fingers, and thumb to hold onto.

Turn the U over, and it is the 'legs' of the U that you are going to use.

The BACK of the ATX main power cable's connector, is where the wires go in.
This is where the U-shaped jumper wire goes also.

One 'leg' goes down in a socket hole, RIGHT NEXT TO the existing wire that is in the socket hole; and the GREEN wire.
The Green wire is the Soft Power On wire.

The leg slides down right next to the insulation of the wire, and touches a metal terminal, at the end of the wire.
This is an example of the metal terminal,

(Left side of metal terminal shown, is crimped around the insulation of the wire. This is what the U-shaped jumper wire touches. The right side shown is partially visible, in the center photo of the above Playtool link. Just the tip openings are shown. Like sort of like brass O shapes )

The leg of the U-shaped jumper wire has to go pretty far down in the socket, to touch that metal terminal. The jumper wire MUST touch that metal terminal. (About 3/8ths of an Inch, or about 9.5mm)

The other leg of the jumper wire, goes down into ANY socket hole that has a Black wire in it. ALL Black wires are Ground wires. (Negative)

Power Supply (Computer) plugged into power, use the U-shaped jumper wire.

(Bend to fit before plugging computer into power, to test fit first.
Not stating that there may be a small spark, as you connect.

That's the way electricity works. Use a D cell flashlight battery, flashlight bulb, and a small wire. There is a small spark when you connect.
For this reason you may also wish to wear a glove, on the 'jumper wire hand' )

Using the jumper wire, and;
1) Computer (Power Supply) comes on, you have a bad Power On switch.
2) Computer (Power Supply) does NOT come on, you have a bad Power Supply.

The two leading causes of desktop computer failure is;
Computer is dirty inside
Bad Power Supply

How to open the computer case,

Main Support page > How to > Adding / Replacing hardware > Opening the PC case,

(Watch out! Video has volume turned ALL the way up! You may wish to turn your volume down, before clicking on the above link)

Make a drawing/s, and notes as to where the wires go, before removing the Power Supply.
Especially the Front Panel header wires.

The Front Panel is the plastic bezel on the front of your computer.
The area of contact pins on the motherboard, that the main wires from the Front Panel go to; is the Front Panel header.

Sometimes one, or more wires may accidentally be popped off.

FOLLOW Anti-Static Precautions.

Anti-Static Precautions:
Your body carries Static electricity. Static WILL fry out, (Short Circuit), the delicate hardware components inside a computer
Relieve your body of Static, BEFORE reaching inside your unplugged from power, computer.

Computer on a table, computer Unplugged from power, computer case open;
TOUCH an unpainted surface, of the metal frame of the open computer case.
This action will relieve your body of Static.

IF you leave your computer in the middle of working on it, be SURE to Touch the metal frame again, upon your return.

(Don't forget to plug back into power, before using the U-shaped jumper wire)

The Power On switch is an ATX power on switch, like this general example,

The Power On switch is located inside the plastic housing, of the Power On Button assembly.
You have to remove the Front Panel, to access it.

HP Support main page above > How To > Adding/Replacing hardware > Removing the Front Cover

Power On Button assembly removed, (Make sure you note, which pins in the Front Panel header on the motherboard, those Power On switch wires connect to), I use a hair dryer to soften the plastic.

Soften the plastic of the Power On Button assembly.
It gets brittle with age, and heat.
I soften it enough to ease a tab out a little, and maybe the opposite tab, and ease the old Power On switch out.

You'll see what I mean, once you have the Power On Button assembly in your hand.

Tab on Power On Button assembly broke, no matter how much finesse you used? Happens. I 'dot it' with a small blob of hot glue, for a hot glue gun.

(When finished after replacing a Power Supply, take the Ram Memory module/s out ('Stick'), and reinstall. They always seem to get bumped.
Visually inspecting will NOT do. You have to remove, and reinstall; to be assured they/it are installed correctly, and tightly.

May wish to do the same after replacing a Power On switch, also)

For additional questions please post in a Comment.

Nov 25, 2012 | HP Pavilion a735w (PL308AAR) PC Desktop

1 Answer

How do I bypass the power switch on a Gateway DX4822-01 PC

I went through this same scenario.Motherboard,power supply, ram, Couldn't figure it out.Turns out it was the Power button itself.Put all the components in a new case an viola everything works

Feb 18, 2012 | Gateway DX482201 (PTGA002002) PC Desktop

1 Answer

I have installed a new motherboard in an acer case. The power cable from the switch on the front of the case will not connect to the board. Can anyone help? Thank you

You should read the motherboard manual, for cabling:
1. Power SW
2. Reset SW
3. HDD led
4. Power led - and power led +
5. Speaker

Cabling scheme, also written on the motherboard.

If the Power SW not installed the switch on does not work.
If the Reset SW not installed the switch reset does not work
If the HDD led
not installed the hard drive light (red) is not lit
If the Power led (+/-) not installed the power light (yellow) is not lit
If the Speakers are not installed, when the computer is on the beep sound is not heard.

I hope this information helps.


Oct 15, 2011 | Computers & Internet

1 Answer

Gm5472 power button is broken need to replace or bypass

The Power On switch is located inside the plastic Power On button assembly.
It is an ATX power on switch.
This switch is a Momentary Contact Switch.

Click on - Components - in the list.
Go down to the heading - Cases and Case Hardware
Click on - 8016038R - USB Ports/Power Switch Assembly for Gateway 5-Bay uATX Case

Click On Product Views, then Main View.

From a quick search on the internet,



While you're waiting for the assembly to arrive, or if you want to just get the computer up, and running again, I suggest this;

If you do not wish to wait, you may want to check local 'Mom and Pop' computer stores.
('Mom and Pop' computer store. The small shops run by those who enjoy computers, and are not looking to make a 'killing' in profits)

This is the motherboard in your Gateway GM5472 Desktop PC,

The plastic front of your computer is the Front Panel.

The area of contact pins on the motherboard, that the cables (Wires) from the Front Panel go to, is the Front Panel header.

The Front Panel header is right next to the four Orange SATA connectors on the motherboard.

This is the Front Panel header pinout,

The pins are numbered. (Look close, and you will see a 2, under the left side of the black connector base)

Pin numbering starting from the Bottom, and going Up on the Right side,
Pins 1, 3, 5, 7, and 9.

Pin numbering starting from the Bottom, and going Up on the Left side,
Pins 2, 4, 6, and 8.

A) Pins 1 and 3 are for the HarDDrive activity LED light.
Pin 1 is for the Positive ( + ) wire.
If the HDD LED light is dim when operating, switch the wires around.

B) Pins 5 and 7 are for a Reset switch, IF a Reset switch is used.

C) Pin 9 is for 5 Volt power. Not Connected to my knowledge.

D) Pins 2 and 4 are for the Power On LED light.

E) Pins 6 and 8 are for the Power On switch.

F) There is no Pin 10, therefore N/C. Not Connected.

For additional questions please post in a Comment.


Oct 09, 2011 | Gateway GM5472 PC Desktop

1 Answer

HP Pavilion a767c Desktop blue power light want come on. Have unpluged the power cable and held the power button in for a short peroid of time with not results. Can you help?

Hello Chris, If you turn on your power (may have to toggle the power button behind your computer before pressing the button, worth trying in each position just in case and make sure the power cable has been plugged back in) and your computer doesn't come on at all. If none of your lights come on AND none of your fans come on, then your power supply may have gone bad. If this is the case then you can't even begin to try and diagnose the rest of your PC to see if it's working. You need power to attempt diagnostics on your other components. Another thing to check is to make sure the fuse on that outlet has not blown, if other things are plugged into that exact same outlet, are they receiving power? Also if you have the same standard power cable that you use from your monitor to the power source, maybe try switching it out and using it on your PC to see if it makes a difference. Hopefully this helps you with your problem Chris, have a great day!

May 07, 2011 | HP Pavilion a767c (82916052406) PC Desktop

1 Answer

I tried to power on our personal computer and it doesn't work. We think maybe the switch in the front could be bad. When we open up the case, there is a green light on, so we think there is power to the...

There is no other way to power up the computer. The green light inside the pc don't mean it is on, it can be only the network card led (that is always on). I suspect a defective unit. Try holding the power button for some seconds if it's booting up.

Mar 01, 2011 | Dell Dimension E521 (D10E16) PC Desktop

2 Answers

Hp pavilion a820n will not turn on, however, the green light on the back is lit

I have the same model computer and had the same issue. There are a couple of things to check out with both being fairly simple. If possible go ahead and replace the power cord just making sure to replace it with a cord of the same specs which could come from another device such as a printer. The next area to check out is inside the case and here you just want to remove any dust build up and make sure to clean the fan at the power supply. To open the case you only need to remove the two thumb screws on the back side opposite the power cord then pull the side towards you and it will pop off. To clean it you can use a can of compressed air to blow it out, there really shouldn't be any need to disconnect or remove anything. This should prevent it from shutting down and not powering up.

Nov 13, 2010 | HP Pavilion A820n (PP165AA) PC Desktop

4 Answers

I want to upgrade the motherboard in my Sony VAIO VGC-RC110G PC Desktop. Is this possible or does sony use a nonstandard configured motherboard?

I have only worked on one of these Sony desktops, and it is really very proprietary, where you would be better off buying a new case to install a new motherboard in. The sony looks really slick, but everything about it is odd: The power supply, the cooling fan for the cpu, etc. It would be a lot easier to save what you can and move it to a new project!

Feb 11, 2010 | Sony VAIO VGC-RC110G (VGCR110G) PC Desktop

2 Answers

Machine won't turn on . Period

Could be a bad power supply or a dead cpu. I would start by changing power supplies with one that is working if you have a spare computer with an ATX power supply. It is nolt very common but could be as simple as a defective power switch. How does the switch feel when it is pushed? Does it spring back or feel like something is broken. Most of the time when I have repaired a PC that does absouloutley nothing when the power button is pressed....dead CPU. You could also try leaving the plug disconnected for 20 minutes....maybe something in the powers supply is heating up. They will store power even when the computer is off.

Sep 13, 2009 | E-Machines eMachines Desktop PC

1 Answer

Emachine desktop power switch is shot

I would still try to replace the power supply first,before replacing the motherboard.In 80% cases that you are describing it is the power supply.
Hope this helps

Mar 24, 2008 | E-Machines eMachines Desktop PC

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