Question about HP Compaq 6720s PC Notebook

2 Answers

Hp 6720s turns on and then goes off

I have hp compaq 6720s laptop the problem is that when i turn it on the fun runs for a while and then it stops won't come on please help

Posted by on

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 233 Answers

Hello. It sounds like either...

1. Your power adapter is damaged/not working. Look and see if a LED is illuminating on the power adapter. If it is chances are it is working fine and the problem may lie on your laptop. If not replace it. The easiest way to tell if your power adapter is bad is to go out to Wal-Mart or your local technology store and purchase one of their universal power adapters. They are expensive but you can buy it, try it, and return it if it does not solve the problem. If you are sure that your hp 6720s charger is malfunction, you may purchase a new one:
http://www.chargerbuy.com/replacement-hp-compaq-6720s-ac-adapter-19v-474a.html

OR

2. The DC pin on your laptop is bent/broken/loose. Look at where your power adapter plugs in on your laptop. Get a paper clip, bend it out to make a long paper clip and slightly push its tip on the pin inside your laptop. If the pin moves chances are either the DC pin needs to be soldered down or needs to be replaced. The part is usually cheap around $10 but the labor can cost more than $50.

Posted on Jan 24, 2013

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • HP Master
  • 5,660 Answers

Ha I like that! "The fun runs for a while and then it stops"

Well we DON'T want that David, lol!

I suggest your laptop is dirty inside. If it has never been cleaned on the inside to your knowledge, it is.

Air is used to cool the hardware components inside the laptop.
The cooling system consists of a;
A) Cooling Tube
B) Heatsink
C) Fan Assembly

The Cooling Tube is a slightly flattened copper tube, sealed on both ends, and filled with Nitrogen.
It has a small flat plate attached to it, that sits on top of the Processor.
There is another small metal plate that sits on the graphics chipset.

[The Processor and graphics chipset are the two hardware components, that give off the most heat in a computer ]

The Heatsink is a thin strip of metal, that has Tall, Thin fins that protrude from it.
In a laptop it is usually rectangular shaped.

The Fan Assembly is a small multi-bladed fan, that is encased in a surrounding cage. (Shroud) Shroud is usually D-shaped.
The flat part of the D is the exhaust opening for the fan.
The fan draws air up in the middle of it, and from the bottom of the laptop.

The metal plates that sit on top of the Processor, and graphics chipset, absorb heat from them.
The Cooling Tube absorbs the heat from the two metal plates, and the Cooling Tube then transfers the heat up to the Heatsink.

The Heatsink absorbs the heat, then radiates it away with it's Tall, Thin fins.
The air flow from the Fan Assembly, helps carry heat away from the fins of the Heatsink.

HP Compaq 6730s which has a similar cooling system,

http://www.insidemylaptop.com/disassemble-hp-compaq-6730s-6735s-notebook-remove-cooling-fan/

Scroll down to Step 12 photo.
Here you see a TOP view of the D-shaped fan shroud, and the Heatsink is to the Left.

Scroll down to the last photo on the page.
The rectangular finned Heatsink is to the Right.
You also see the curved copper looking Cooling Tube, and where it states - Heatsink - is the small metal plates.

(That sit on the Processor, and graphics chipset)

A look at a laptop that is dirty inside, using a Dell XPS M1710 for an example,

http://www.youtube.com/watch?v=AkAeE5I5E_A

When the cooling system gets clogged with 'Gunk', the laptop components inside overheat.
[ Gunk = Dirt, dust, hair, carpet deodorizer, lint, food crumbs,.....you name it ]

When a Processor overheats it turns off.
This is a fail safe feature built-in.
Keeps the Processor from burning up. (Sometimes literally!)

Also there is a thermal compound used.
Thermal Paste in-between the Processor, and it's Cooling Tube metal plate;
Thermal Pad in-between the graphics chipset, and it's Cooling Tube metal plate.

[A Thermal Pad is a material that is impregnated with Thermal Paste]

Thermal Paste can dry up over time, and the constant heat inside the laptop. (Thermal Paste in Thermal Pad also dries up)

It then looses it's thermal conductivity properties.

The top of a Processor, and the bottom of it's matching small Cooling Tube metal plate, is not perfectly smooth.
Same with the top of a graphics chipset, and it's Cooling Tube metal plate.

A magnified view would detail, 'Hills, Valleys, and Pitholes'.
Thermal Paste fills these imperfections, and is an Excellent conductor of heat.

Do you wish to disassemble, and clean; and also replace the Thermal Paste, and Thermal Pad?
Post back in a Comment.

HP Support has a free Service Manual, and I can guide you step by step.

http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&lang=en&cc=us&docIndexId=64179&taskId=101&prodTypeId=321957&prodSeriesId=3442832#3

(I'll show you what manual to download, and how)

Post back in a Comment.
Regards,
joecoolvette

Posted on Jan 21, 2013

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

freetek
  • 5568 Answers

SOURCE: BLUETOOTH ON HP 6720s

You may have to enable Bluetooth along with other, less common ports since having it turned on by default may incur a small penalty in battery life. En- and dis-able functions are in the BIOS setup.

Posted on Oct 26, 2008

  • 103 Answers

SOURCE: Compaq 6720s - No DVD drive and will not open

Have you replaced this DVDdrive with a working one and does this work if this works you will no that this si a hardware issue. are you using windows vista or windows xp

Posted on May 04, 2009

  • 65 Answers

SOURCE: No sounds within my HP Compaq 6720s Laptop

go to hp.com find the driver for the audio sound

Posted on May 31, 2009

  • 116 Answers

SOURCE: Hello, My HP Compaq 6720s is turned off and

When you say turning on and off all the time until I disconnect the charger, IS the charger running the machine and then after so long cutting out? you leave it and it works , if so its overheating

Machine will need fan and all ducts cleaning and most likely replace arctic silver on psu

IF on the other hand its not running more likely the charger is not powering the machine or charging battery in which case you will need new charger

hope this helps get back to me if you need more help

Posted on Jun 10, 2009

mithunsree
  • 32 Answers

SOURCE: display problem for hp compaq 6720s

OS is corrupt

Posted on Aug 11, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My hp compaq 6720s sound has stopped working


Try updating your audio drivers for your sound card. Just go into "device manager" and select your audio device and choose "update driver".....

Jun 30, 2012 | HP Compaq 6720s PC Notebook

1 Answer

My bluetooth driver is not working on Compaq 6720s, i have installed driver file sp34842.exe file but it ask only turn on bluetooth , but even i turned on bluetooth it does not install. Please help me


The Vista Business Bluetooth drivers for your notebook should work fine with W7.

Here they are:

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTypeId=321957&prodSeriesId=3442832&prodNameId=344283
3&swEnvOID=2096&swLang=13&mode=2&taskId=135&swItem=ob-56755-1

Jun 15, 2011 | HP Compaq 6720s Notebook

1 Answer

The drivers for this device are not installed(Code 28) for hp compaq 6720s


Hi:
Your problem doesn't state what driver or device isn't working on your HP compaq 6720s, but all drivers for your laptop can be downloaded from www.hp.com for free. click on the support tab, type in your model number and you can download all of them.!

Aug 20, 2010 | HP Compaq 6720s Notebook

1 Answer

Hp 6720s speakers not workig


go to speaker icon in bottom corner of screen, right click , go to properties, make sure speakers are enabled and volume turned up and speakers are set to default

Aug 27, 2009 | HP Compaq 6720s PC Notebook

1 Answer

No sounds within my HP Compaq 6720s Laptop


go to hp.com find the driver for the audio sound

May 31, 2009 | HP Compaq 6720s Notebook

1 Answer

Laptop does turn offf


you can turn off by pressing power button for 15 seconds ..

Feb 16, 2009 | HP Compaq 6720s Notebook

Not finding what you are looking for?
HP Compaq 6720s  PC Notebook Logo

199 people viewed this question

Ask a Question

Usually answered in minutes!

Top HP Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18402 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a HP Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...