Question about Intel Motherboard

1 Answer

Laptop system board

The system board, lcd, and key board are defective.  could that cause the following parts to be damaged: switch board, key board cover, heat sync, combo drive, cpu.  (the combo drive is broken because it would overheat to the point of smelling burning electronics and afraid of it catching fire I opened the drive and it was so hot it snapped) also the key board is warped near the power buttons from the heat. circuit city is claiming the extended warranty wont cover broken or defective parts?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 730 Answers

You have a dead short in electrical most probably everything is stuffed

Posted on Jul 26, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

A circuit diagram for samsung np-s3520 laptop motherboard


First, check the output of the laptop's power supply with a multimeter. If it is producing the voltage indicated on the power supply's label, your power jack on the motherboard has possibly been physically broken inside the case some how. Another possibility is the battery itself has become defective.

You will need expert desoldering skills to be able to install a new jack, not to mention skills to entirely remove the motherboard from the laptop's case and reassemble it to its original state again. Motherboards are multi-layered and excessive heating of the board can damage "through holes" that must be cleared and cleaned out enough to insert the new part without damaging the board. Temperature controlled soldering equipment is recommended. If the board has become broken, the laptop is likely uneconomical to fix.

Here is a link to someone selling this part on Ebay @ $4.00 USD+ a few dollars shipping if you're located inside the U.S.

NEW SAMSUNG NP S3520 LAPTOP AC DC POWER JACK CHARGING PORT SOCKET PLUG
Ensure the pattern of the legs of the replacement is the same as the original. This should be obvious from comparing the pattern on the backside of the motherboard where the original jack is located.

Sep 24, 2014 | Motherboards

1 Answer

Sony vaio pcg5kfp


All Sony notebooks come with a built-in fan that keeps the hardware components in the laptop from overheating.

When the fan on your Sony notebook does not spin, your motherboard or other key hardware components may become permanently damaged.

If your Sony notebook fan is not spinning, it is important to resolve the issue as soon as possible to avoid further problems.

By going through each of the most likely causes for this problem, you can determine how to get the fan in your Sony notebook working again.Clogged Fan

A Sony notebook computer has vents on the bottom that enable air to flow in and out of the laptop's fan.
Occasionally, dust and other particles may get into the fan through this vent, which can cause the fan to become clogged.

When the fan is clogged, the fan may either spin slower than normal or stop spinning altogether. You can usually fix a clogged fan on your Sony notebook by using a can of compressed air to blow the dust out.

Consult your Sony notebook's user guide to determine how to safely access the fan for cleaning. Disconnected Fan

The fan on the Sony notebook is connected through a wire to the power supply on the laptop. Although this wire is firmly connected from the fan to the supply, it may become disconnected if the Sony notebook is dropped.

When the fan's wire is disconnected, the fan will not spin because it is unable to draw the power it needs to function properly.

You can check whether or not the wire is connected by following the directions listed in your Sony notebook's user guide to take apart the computer.

Defective Fan Your Sony notebook's fan may not spin because the fan is defective.
The fan may become damaged if the notebook itself is damaged in some way.

Occasionally the fan may be defective due to a manufacturing error, as is often the case with the VGN-CS and VGN-BZ Sony notebooks: these notebooks have an extended warranty due to faulty fans.

You can have your fan replaced by Sony for free if the notebook is still under warranty. Otherwise, you may need to pay to have the defective fan replaced.
Other Problems
If the fan is clean, fully functioning and connected correctly to the notebook's power supply, your Sony notebook's fan may not spin due to a defective power supply that prevents the fan from receiving the power that it needs to function.

Alternatively, your fan's wire may be frayed or otherwise damaged, which can cause the fan not to spin.

In either case, you must repair the faulty component in order to restore full functionality to the Sony notebook's fan.


Nov 21, 2013 | Motherboards

1 Answer

Horizontal black line at bottom of laptop screen/ Compaq Presario C700


http://h10025.www1.hp.com/ewfrf/wc/product?product=3559331&lc=en&cc=us&dlc=en&lang=en&cc=us

Alan, let's diagnose;

1) Do you have access to a VGA monitor? (CRT style. Looks like a small TV)
How about a flat LCD screen monitor with a VGA cable?

Need to see if the problem is the graphics chipset, or the Video Cable, or inside the Display Assembly.

http://en.wikipedia.org/wiki/VGA_connector

A) Laptop OFF, monitor OFF, connect the VGA monitor, to the VGA connector on the laptop. (Left side towards the Front)

B) Turn the monitor on. If a CRT type allow it to warm up.
Turn the laptop on.

By default (Factory settings), the display should show on the external VGA monitor.
IF not;

There are at least 3 display options;
1) Internal monitor of laptop ONLY
2) Internal monitor of laptop AND external VGA monitor
3) External VGA monitor ONLY

Press, and hold the Fn key down, (Second key from left on bottom), and at the same time tap once on the F4 key.
(The F4 key is the Display Toggle-Over key)

Still no display on external VGA monitor?
Hold the Fn key down again, and tap once more on the F4 key.

Display on external VGA monitor OK? Problem is the video cable, or inside the Display Assembly.

Line still on display? Problem is the graphics chipset, or it's mounting to the motherboard. (BGA surface mount)

Problem with Video Cable or Inside the Display Assembly:

Video Cable; Display Cable when referring to an HP, or Compaq laptop.

The Display Cable attaches to the motherboard, under the left side of the Keyboard, and towards the front. It then routes under the left Hinge, and up into the Display Assembly.

From there it splits, and connects to the screen Inverter, and back of the LCD screen,

http://www.batterycentury.com/compaq-presario-c700-cable-p-212772.html

{ In the photo; On the right side there is a wide connector, (Top), and a small connector, (Bottom)
The wide connector connects to the motherboard. The small connector connects to the screen Inverter.

The connector to the far left connects to the back of the LCD screen}

Just from normal opening, and closing of the laptop, repeatedly, the cable can be pulled on. It can also be pinched in the left Hinge, and be pulled on.
This can cause two things:

1) Can pull the cable so the connection at the motherboard is loose, or loose at the screen Inverter, or back of the LCD screen. Or all three.

I have repaired a few laptops whereby this was the problem. I also have a few users on here, who reported this was the problem.

You have to remove the Switch Cover, and partially remove the Keyboard, to access the motherboard side connection, of the Display Cable.
You have to remove the Display Assembly, and open it up, to access the LCD screen side connection.

You CANNOT just visually inspect the connections, and assume they are plugged in tightly.
You need to physically, make sure the connections are plugged in tight.

The Switch Cover is just that. A cover.
The Keyboard has a Keyboard Cable, that stays attached to the Keyboard, and is connected to the motherboard connector.

Therefore, when checking to see if just the motherboard connection is the problem; you can just leave the Keyboard Cable attached to the motherboard, and fire the computer up after physically checking the motherboard connection.

{ Flip the Keyboard over, and lay it down on the Palm Rest Cover.
Excuse me. Top Cover for HP and Compaq }

With the LCD screen, and screen Inverter connections, you can lay the LCD screen down on your 'work' table, and try it. This way you can try it to make sure it is the problem, before reassembling the laptop.

Otherwise you will be removing the Display Assembly again, and opening it up, again.

[This will all make more sense as you read on ]

The Display Cable can also be damaged. Visually check the sheath of the cable. ANY apparent damage, may result in damage to the tiny wires inside the sheath. (Stretched/Broken)

Test the wires inside the display cable for continuity. This is done with a multimeter set to OHM's. (1K)
If you do not have access to a multimeter, perhaps take it to a 'Mom and Pop' computer store to have it checked. Should only cost a few bucks.

Display cable connections are tight/ cable checks out?
Problem is the screen Inverter, or LCD screen.

The screen Inverter is checked with a Sensitive multimeter.
Read fairly expensive,

http://www.fonerbooks.com/test.htm

Perhaps the 'Mom and Pop' computer store again.

http://www.batterystyle.com/compaq-presario-c700-inverter-p-261900.html

{ A screen Inverter, and an LCD screen are a MATCHED unit. If the Inverter is the problem, make SURE you get the correct one. Same thing with an LCD screen. Make SURE you get the correct one }

Screen Inverter checks out? Problem is the LCD screen,

http://www.screentekinc.com/Compaq__Presario__C700_Series-series-laptops-lcd-screens.shtml

[ALL of the parts shown are just for examples. NONE are for advertising ]

To Add:
An LCD screen cannot produce light,

http://solutions.3m.com/wps/portal/3M/en_US/NA_Optical/Systems/BehindTheScenes/Optics101/

Click on the monitor icon. (I also would click on -> No thanks)

An LCD screen needs an additional light source. A Backlight is the additional light source.
A Backlight can be a CCFL, or a series of LED's.
(Light Emitting Diode)

A CCFL is a Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

Average thickness is 2mm. That is a little larger than 1/16th of an Inch.
Average length is almost as long, as the LCD screen is in height.
In the next example look at the last 5 photos,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

The Compaq Presario C700 series of Notebook PC's uses a single CCFL.

A screen Inverter converts the power from the laptop, for the LCD screen, and Backlight.
90 PERCENT OF THE TIME, the fault is a bad screen Inverter.

This is a link to a free Service Manual from HP Support,

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&lang=en&lc=en&product=3559331&

In the list click on -
HP G7000 Notebook PC and Compaq Presario C700 Notebook PC -
Maintenance and Service Guide

This is a PDF file. The computer you are using now has Adobe reader on it, which uses PDF files.
After you click on the above file name it may take up to 30 seconds, before the first page comes up.

In the Bookmarks menu to the left;

1) Click on the + sign to the left of -
Removal and replacement procedures
2) Click on the + sign to the left of -
Component replacement procedures

3) Click on one at a time -
Switch Cover
Keyboard
Display assembly
Page 58 for the screen Inverter.

A) Remove ALL power. Remove the AC adapter (Charger), and Battery
B) De-static yourself before working on the laptop. Perhaps there is a large metal serving plate (Unpainted), you can set on the table, or a large metal knickknack. (Unpainted) Touch before working.

C) Use a multi-compartment container, for the various screws you will remove.
Label each compartment for the area the screw/s come out of.
[If no multi-compartment container is available, you can substitute with a clean egg carton. Label each egg holder ]

SOME screws look VERY similar to other screws.
Advise do Not mix them up.

Need advice along the way post back in a Comment. I'm right here.

Regards,
joecoolvette

Jul 26, 2012 | Compaq Presario C700 Series Laptop...

1 Answer

I have a hp compaq prasario cq40 laptop i spilled just a drop of liquid on the key board it stayed on for 10 to 15 min and then shut off the problem is it turns on however the screen will not and if i...


There is no way to know the extent of the damaged done to your laptop. I can only guess that the following parts could be bad, motherboard, battery, optical drive, keyboard,etc, etc...in addition laptops are a pain when it comes to dis-assembly

The rules if you spill a liquid on your laptop
  1. DO NOT apply POWER
  2. Remove the power adapter and battery as quickly as possible
  3. Blot up as much liquid as possible
  4. Remove all drives and allow the rest of the liquid to drain
  5. Use a hair dryer on low heat to assist in the drying process
Please note that soda leaves a sticky residue that can cause more problems, more disassemby of the laptop might be required

Feb 23, 2011 | Motherboards

1 Answer

When i press the switch to start up the blue hard drive light comes on but not the yellow power light, it will not boot up and after a few seconds the blue light goes off and the no signal sign comes...


Strip the system down to the absolute minimum: unplug all of the drives, disconnect the speakers and any USB devices, and remove all but one memory module. If the system starts (of course it won't boot), one of the items you removed is defective. Add the parts back one at a time until you have a failure.

If it still doesn't start after the strip-down, swap the remaining memory module with another one. If that doesn't do it, try putting a video card in and using that instead of the on-board video (you have provided no details about your hardware, so I'm guessing at your configuration).

Caution: shut down the computer and unplug it before adding or removing any internal parts to avoid damage to the motherboard or parts (every time you add back a part). Do not touch any circuitry with your fingers; handle memory modules only by the edges. Failure to observe this precaution may cause electrostatic discharge damage to the parts (even if you don't feel the shock when you touch it). You can reduce the chance of damage by making sure you have bare skin touching the metal case of the computer while you work on it. It is not necessary to turn off the computer to plug in speakers or USB devices or remove them.

If the system will not start when it is stripped-down, either the power supply or the motherboard is bad.

Jan 02, 2011 | Motherboards

1 Answer

First I suffered the 34 minute hang up while reformatting. have removed all hardware except HDD,RAM,VIDEO and XP CD. and tried reformat again Get beep beep sound continually from motherboard Windows setup...


probably itz either minor case of software corruption/improper ground/cpu fan..
or major case of faulty or defective main board/ram/addon/daughter cards..

..plz do check the following as in order:..
the Hardware part:..
1)a) in power-on mode, open/unplug the data/vga cable of the monitor from cabinet..see if raster or 'osd' is appearing on the monitor screen..if so monitor is ok..else replace the monitor and see..[not applicable in case of laptop]..
b) in case of laptop try to get output from external display unit/monitor using vga port..if there's proper display in there..the problem is probably with either the 'lcd' or 'ccfl' or 'inverter circuit'..

2) if u hv a graphics card, replace with a standby or onboard and see..[not applicable in case of laptop]..

3) unplug mains supply..pick open/remove the cmos battery..check (above +3v)..resit..

4) see if the ram(s) is loose/faulty..open clean/remove carbon & or oxide formed on the teeth with an eraser n resit it..or replace with a standby n see..

5) a) see if ur hdd is noisy or emitting any 'ticking' noise (like 'tuk tuk' or 'kirr kirr')..
b) or if the system is not supporting either the newly installed device or itz software/driver /firmware
if so, u need either a fresh os installation or ur hdd is likely to b replaced..

6) remove/clean dust neatly..dust is non-uniform in nature n may cause jam/short circuitry/excess resistance n many more..resulting an increase in heat..

7) open the CPU Heat-Sink with fan out of the socket..put some "Heat Sink Compound" (available in local electronics chip level spare market)between the cpu/processor and the CPU Heat Sink *** fan..resit/fit it tightly in position..

8) on main/mother board..see with a debug card for mb error..may b short..look for defective capacitors(espabove1000mfd)/mosfets..go through the mb's south bridge n the circuit lie around atx connector..the crystal clock generator (if cpu isn't heating up)..

9) [in case of desktop] the smps itself may b defective/faulty..check the outputs of smps viz. 0v (black~ground); +12v(yellow); +5v (red, green~ps-on, violet~pg& grey~sb); -12v (blue);-5v(white); +3.3v(orange)..the 'oscillator and error amplifier ic',or pwm switching regulator circuit..look for defective protector-transformer/resistance (esp 4.7k)/mosfet..
check the battery n adapter [main power], in case of laptops..

for any further assistance u may plz leave comment and or testimonials at any point of time, so that i/we can help or u think it to b helpful..

if u r not a professional, always better to seek advise from ur system admin/vendor....

Nov 27, 2009 | Asrock P4I45GV R5 Motherboard

1 Answer

Ibm 2611 laptop display problem what i do tell me the possible reasons


probably itz either minor case of software corruption/improper ground/cpu fan..
or major case of faulty or defective main board/ram/daughter or addon card(s)..

..plz do check the following as in order:..
the Hardware part:..
1)a)in power on mode, open/unplug the data/vga cable of the monitor from cabinet..see if raster or 'osd' is appearing on the monitor screen..if so monitor is ok..else replace the monitor and see..[not applicable in case of laptop]..
b) in case of laptop try to get output from external display unit/monitor using vga port..if there's proper display in there..the problem is probably with either the 'lcd' or 'ccfl' or 'inverter circuit'..

2) if u hv a graphics card, replace with a standby or onboard and see..[not applicable in case of laptop]..

3) unplug mains supply..pick open/remove the cmos battery..check (above +3v)..resit..

4)see if the ram(s) is loose/faulty..open clean/remove carbon & or oxide formed on the teeth with an eraser n resit it..or replace with a standby n see..

5) a) see if ur hdd is noisy or emitting any 'ticking' noise (like 'tuk tuk' or 'kirr kirr')..
b) or if the system is not supporting either the newly installed device or itz software/driver /firmware
if so, u need either a fresh os installation or ur hdd is likely to b replaced..

6)remove/clean dust neatly..dust is non-uniform in nature n may cause jam/short circuitry/excess resistance n many more..resulting an increase in heat..

7) open the CPU Heat-Sink with fan out of the socket..put some "Heat Sink Compound" (available in local electronics chip level spare market) between the cpu/processor and the CPU Heat Sink *** fan..resit/fit it tightly in position..

8)on main/mother board..see with a debug card for mb error..may b short..look for defective capacitors(esp above1000mfd)/mosfets..go through the mb's south bridge n the circuit lie around atx connector..the crystal clock generator (if cpu isn't heating up)..

9) [in case of desktop] the smps itself may b defective/faulty..check the outputs of smps viz. 0v (black~ground); +12v (yellow); +5v (red, green~ps-on, violet~pg& grey~sb); -12v (blue); -5v(white); +3.3v(orange)..the 'oscillator and error amplifier ic', or pwm switching regulator circuit..look for defective protector-transformer/resistance(esp 4.7k)/mosfet..
check the battery n adapter [main power], in case of laptops..

if u r not a professional, always better to seek advise from ur system admin/vendor....

Nov 18, 2009 | IBM 2611 1400I (10L1175) Motherboard

1 Answer

My laptop could not even access the bios it started with fan sounds but then just died with blank screen


Hello..

Now let's discuss what we should do when the laptop seems to be booting up without problems, the hard drive spins appropriately, and we even hear the welcome sound of the operating system, but we have no display on the LCD panel.
The easiest and most foolproof method for testing your LCD screen is to hook up the laptop to an external monitor. If the video output on the external monitor looks fine, this means that the problem is with the video connector, with your LCD panel itself, or with the circuitry that turns on the LCD.
What do we do? It all starts with disassembling the notebook. Find the video connector on the system board (if the video is integrated on the motherboard) or on the video card that is attached to the motherboard. Try re-connecting the cables. You may as well locate the display connector on the back of the end LCD panel. Re-seat that one too. This way you can be sure that the problem is not related to connections.
image002.jpgEvery now and then the switch located on the system board that turns the backlight of the LCD on and off can become stuck. If this is the problem then your LCD never powers on. There's a little switch that detects whether the screen of your notebook is open or closed. That's the one we're talking about. Try to push it down and hope it gets unstuck.
Disassembling the laptop to unstick this switch is an option, but sometimes you can get away with not taking it apart. Try lightly hitting that plastic switch. But wait, this isn't the only possible cause, unfortunately. Re-seat the other connectors and cables that are present around the LCD panel and the video on board (including the inverter).
All of the aforementioned can usually be fixed, but let's not forget about the screen itself. Sometimes the screen can become defective. Here we'll enumerate a few scenarios where the screen has gone bad and must be replaced: lots of vertical lines or bands appearing on the screen; half of the screen works fine but the other half stays either black (blank) or really white; the output on the screen looks blurred and changes to different patterns; and so forth. These are almost always signs of a defective LCD panel.
However, if the output on the screen is nothing but garbage, such as incorrectly placed special characters, shadows around the characters, unknown randomly placed marks of different colors, distorted or ugly-looking geometric patterns, or tiny little white dots all over the screen, then these are almost always due to the system board or the connection between the LCD panel and the video card. Re-seat the connectors.
All in all, these are some of the most common hardware failures. Nevertheless, before we finish this part, let's name some of the others that will be covered in the second segment of this guide, along with the promised system instability troubleshooting strategies. These include clicking noises coming from the HDD, which is the well-known symptom of a dying HDD. Thus, back up your important data as soon as possible and order a replacement. Overheating is also discussed thoroughly.

Hope it may helpful for you

ICmanServer

Aug 21, 2009 | Motherboards

2 Answers

Compac dv 2000 laptop


first you have to know what is goin on with your laptop, is it starting up to the bios? or continously restarting, or rebooting or totally not statring at all. please specify what exactly happened to your pc to be able to know what if your board is not working at all
have a nice day

ally

Jun 12, 2008 | Motherboards

3 Answers

Problem with Dell Inspiron 1100 series laptop


Most certainly a non working fan would cause this behavior. Laptops are much more susceptible to overheating. Fan failures can be hastened by regularly blocking the fan by doing things like using it on a pillow or soft surface. The behavior is exactly what you think.

Nov 26, 2006 | Dell Computer Refurbished PE3250 SYSTEM...

Not finding what you are looking for?
Intel Motherboard Logo

Related Topics:

48 people viewed this question

Ask a Question

Usually answered in minutes!

Top Intel Motherboards Experts

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Tony

Level 3 Expert

2598 Answers

joecoolvette
joecoolvette

Level 3 Expert

5660 Answers

Are you an Intel Motherboard Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...