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Motherboard just spilt beer over it,stripped it down and dryed it out and know once the power supply is pluged in the light comes on flashes and the laptop will not switch on,not even a there any way of checking whats nackered and whats not,i've herd about these fault cards but does there need to be power to the mobo.thanks for any help....

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Re: motherboard

I see many cases of spilt coffee/pop/beer/liquid of some sort spilt on laptops at work, and it is rare that good news accompanies it. It is rather impossible to clean out a laptop entirely. Your best bet is to get your data off the hard drive, buy a new laptop, and transfer it over. This may seem harsh, but it really is your best option if you do not wish to lose data.

Posted on Dec 25, 2007

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My emachine T3120 will not start up

To me from the indications given it looks like a Power Supply problem.
At first LED lights light, and fans spin.
Then you plug a PCI Express card in, and NO fans spin.

PCI Express graphics card took all the power there was available.

[ A PCI Express x16 slot can deliver Up To 75 Watts ]

1) If ALL of the LED lights were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor can use 51 to 125 Watts of power.
Just depends on what Processor it is.

You don't have enough power to turn the Processor on.
Fans were spinning, you plugged a graphics card in, fans do not spin now.

Power Supply has a weak voltage power rail.
(There are three; 3.3 Volt, 5 Volt, and 12 Volt)

HOWEVER, the method is to diagnose; not parts changing.
Do you have a multimeter to test the three voltage power rails?
I can guide you. An economical multimeter ranges about $5 to $12 around here.

How about a KNOWN to be good, Compatible power supply; that you could borrow from a working computer, for a test unit?

How could a Power Supply go bad from just sitting?
There are Electrolytic Capacitors inside the Power Supply. These have a chemical paste inside. Electrolytic Paste. The paste breaks down over time. Especially if the Power Supply is not plugged into power.
(When an SMPS (Power Supply) is plugged into power, there is a constant 5 Volts present. (5 Volts DC) This is the 5 Volt Standby power )

[The Electrolytic Capacitors used are Radial Aluminum Electrolytic Capacitors ]

Click on the second photo down on the right. The Bottom example is a Radial design. The example is actually a Radial Aluminum Electrolytic Capacitor.

Just so I do not miss anything in the diagnoses, I would also like you to look CLOSE at the Electrolytic Capacitors on the motherboard, too,

Long 'story', I'll try to make it short;
General Electrolytic Capacitor construction,

1) Case: The outside case is an aluminum cylindrical shell.
Think of a 'Coca-Cola' can with the top and bottom open.

2) The top 'lid' is a thin aluminum flat disk.
It has either a lK or X shape cut into the flat disk, partway
It is sealed around it's outer edge to the Case.
This is the Vent Cover.

3) The bottom 'lid' is a synthetic rubber flat disk.
It is called the Bung.

4) Inside are three strips. (There are many layers of these strips in actuality)

A) One strip is metal, and is the Conducting Strip.
It has the Positive lead connected to it. (Lead; Think stiff wire)

B) One strip is also metal, but has a non-conducting medium applied to it. It is the Non-Conducting strip, and the Negative lead connects to it.

C) The last strip is paper-like, and soaked with Electrolytic Paste.
The Electrolytic Paste soaked strip is laid in-between the two metal strips, and all three are rolled up tightly.
The two leads (Positive and Negative) poke down through the Bung.

(Again, there are several layers of this construction, inside the capacitor's case)

When an Electrolytic capacitor goes bad, the Electrolytic paste inside chemically breaks down. It either dries up, or turns into a gas.
Hydrogen Gas.
The gas expands inside the Case, and pushes against the top seal, (Vent Cover), and bottom seal. (Bung)

The X or lK shape etched partway into the Vent Cover pops open, and/or one side of the synthetic rubber Bung pushes down.
The gas begins pushing Electrolytic paste out.

So much paste loss, and the capacitor can operate at a weakened state.
Too much paste loos, and the capacitor fails.
This is why it can work sometimes, then seem to fail all at once.

This applies to Electrolytic capacitors on the motherboard, and in the Power Supply.

[NOT an invite to open the Power Supply, and attempt a repair!
This = No.
Replace ]

The first thing to do when diagnosing a desktop computer problem, is make SURE it is receiving power, and the correct amount of voltage.

THEN the diagnosis can be continued on.
A Power Supply with a weak voltage power rail, cam emulate all sorts of seemingly software problems.

For additional questions please post in a Comment.

Nov 11, 2012 | eMachines T3120 Motherboard Replacement...

1 Answer

Board will not start

It's very possible that when your power supply died so did your motherboard. Especially if a power surge was involved.

Aug 18, 2012 | ASUS P4P800-VM Motherboard

1 Answer

Hi I'm Franck and I have some issue with my Compaq Proliant Dl320. when I start it, no information on my screen, led Power is green, electricity led is green. then after 3 or 4 minutes, led Power...

Bad Power Supply Franck.

Power Supply has a weak voltage power rail.
(Or more than one.
There are three main voltage power rails.
1) The 3.3 Volt power rail
2) The 5 Volt power rail
3) The 12 Volt power rail)

The Power Supply has enough power to light the Power On LED, and 'electricity' LED, but Not enough power to turn the Processor on.

A) If ALL of the LED lights were on at once they would use less than 1 Watt of power.
B) EACH fan uses 2 to 3 Watts.
C) A typical Processor can use 51 to 125 Watts of power.
(Less for older processors such as an Intel Pentium III)

An Intel Pentium III model 1266S processor, (Tualatin Core) can use up to 30.4 Watts.

Why is the Power Supply bad?

Two main causes of computer failure;
1) The computer is dirty inside to include the Power Supply.

Power unplugged from computer, Anti-Static Precautions observed, a can of compressed air for computers is used to clean the inside of the computer, and the Power Supply. (The best you can through the Power Supply's case ventilation holes)

2) Bad Power Supply.

Some of the components inside a computer power supply are Electrolytic Capacitors.
(Radial Aluminum Electrolytic Capacitors to be specific)

Electrolytic Capacitors break down after time.

The Power Supply used in a personal computer is an SMPS.
Switched-Mode Power Supply,

Electrolytic Capacitors are used in the Input Stage, and Output Stage.
They Filter the incoming AC electricity, and the outgoing DC electricity.
(Rectified AC)

In the above link click on the photo of an exposed SMPS to the upper right of the page.

The letter B is on top of one of the two large Electrolytic Capacitors used in the Input Stage.
The letter E is in the middle of surrounding smaller Electrolytic Capacitors used in the Output Stage.

Basic construction of a Radial Aluminum Electrolytic Capacitor, is a small aluminum can with two strips of aluminum foil, and a strip of paper soaked with Electrolytic Paste, installed inside.

There are three strips.
A) One strip is the Conducting strip.
A strip of aluminum foil.

B) One strip is a Non-Conducting strip. A strip of aluminum foil with a non-conducting medium applied to it.

C) A paper strip which is soaked with Electrolytic Paste.

The paper strip is laid in-between the two metal strips, and all three are rolled up tightly, then installed in the aluminum can case.

The Conducting strip has a lead (Think wire) attached to it, and it is the Positive connection.
The Non-Conducting strip has a lead to it also, and it is the Negative connection.

These two leads come out of the bottom of the capacitor through a Bung.
(Flat synthetic rubber disk)

The top of the 'can' has a flat metal aluminum disk. This disk is etched with a pattern part way into the disk's surface.
The pattern is usually a K or X.

When the Electrolytic Paste breaks down it forms a gas. Hydrogen Gas.
The gas expands, and pushes the paste out of the capacitor.
(Though the cracked open K or X on top, and/or pushes one side of the Bung out of the bottom)

So much paste loss, and the capacitor operates in a weakened state.
Too much paste loss, and the capacitor fails.

Electrolytic Capacitors are the weakest link in an SMPS.

This is Not an invite to try to repair the SMPS in your computer.
The best solution is to replace it.

This is from a quick search,

The power supply used in the Compaq Proliant DL320 server computer, is not an average one you can buy anywhere.
The above however is just from a quick search. You may find a better price. (Just make sure it's a reliable source, IMHO)

HP Support > Compaq Proliant DL320 > Service Manual, (Service Guide is a Service Manual),

Click on the file - HP Proliant DL320s Server Maintenance and Service Guide

Shows you how to open the computer, and change out the power supply.

Computer unplugged from power, observe 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 working on your computer.

Computer unplugged from power, computer case open, TOUCH the metal frame of the open computer case.
IF you leave your computer in the middle of working on it, be SURE to touch the metal frame again upon your return ]

For additional questions please post in a Comment.

Jun 26, 2011 | Compaq (260142-001) for Proliant DL320...

1 Answer

Wine spilt over keyboard, now when I press the power button the hard disk light comes on for a nano second and nothing else happens.

If this is a laptop, then liquid probably infiltrated to the critical electronics. Dry off the laptop as best as possible and let it sit for several hours. Powering it on may have permanently damaged something due to a short caused by the liquid. I would not recommend disassembling the laptop to dry it out. You will need to allow it to dry out internally before attempting to try powering it on again.

1. Remove the battery.
2. Remove any service covers you can find, such as the cover you would remove to install additional memory.
3. Wipe off any liquid you can see. Carefully try and get into spaces between keys if possible. avoid popping the keys off the keyboard. They aren't easy to get back on in some cases.
4. Leave the laptop powered off and allow it to dry for at least 3-4 hours, probably longer.

Dec 06, 2010 | Acer Motherboards

2 Answers

My dv6000 will not come on, the lights come on fro about 2 sec. the shuts down. I replaced the motherboard but still will not power up.

You are in for a rough fix. See the HP forum and follow the directions on this web posting. Get a PC geek to help.

Search for the date given below:
Nov 22, 2009 16:10:23 GMT Unassigned HOW TO FIX YOUR DV6000/DV9000/DV2000

All the Problems described in the previous posts are Graphics Related..
Faulty Nvidia Chip..Both Intel And AMD Based Motherboards..Though More Common on the AMD..

The symptoms of the Laptop Powering on and Shutting Off Repeatedly..Or.. Powering On and Having No Video...Or... Power Strip Lights Up, Beeps,Shuts Down...Or..No Power At All...Or.. Intermittant Loss Of Wireless/Video Goes In And Out/Touchpad Slows and Freezes..

To Fix this issue, You will need to Reflow The Graphics Chip.

I will Explain In Full Detail As To The Correct Method Below....

HP DV6000/DV2000/DV9000 Compaq v2000 Video Chip Reflow Instructions

First Step Is Complete Disassembly Of All Parts And Components..
Remove RAM, Remove CPU, Of Course Remove Heatsink and Fan assembly.

Mar 23, 2010 | HP Pavilion dv6000 dv6100 dv6200 dv6300...

1 Answer

Power supply not coming on

first of all you need to connected the power supply connector, processor connector, hdd connector, cd rom connector.
check it

Jan 21, 2009 | ASUS A8N-SLI Premium Motherboard

1 Answer

Ok my dell that i have is a intel celeron d dimension 1100 with windows xp home on this is the prob with it i pluged it in with tha power supply and tha green light comes on but whe n u hit the power...

The power switch/button may have a polarity issue. Remove the power cable from the back of the PC, then swap the power switch connector on the motherboard 180 degrees (put the connector with the two different color wires back in the opposite way it was on).

Dec 02, 2008 | Dell (8N816) Motherboard

1 Answer

Problem getting hard drives to run

check the power supply. some time power supply not suppling the proper voltage to the accessories. 

Nov 26, 2008 | Intel Motherboard

1 Answer

Wont power up!

May be the battery is dead (i.e. uncharged). Connect to an electric network and try once.

Oct 11, 2007 | DFI NFII ULTRA-AL Motherboard

4 Answers

Power Supply Question

hi you can buy a new 20 pin to 24 pin adaptor from ebay for a few pounds, or most new power supplys do have a 24 pin slot for your motherboard power let me know if you need anymore help regards steve,

Mar 18, 2007 | ASUS A8N32-SLI Deluxe Motherboard

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