Having problems with your HP Pavilion DV6500T Notebook ?

Turn off without warnning.

\015 My HP Pavilion dv6500 just turns off without warning. I think it was the fan. Few days ago I used a air duster to clean the heat-out area, and after that the fan seems to stop working. What should I do now? Do I need to replace the fan? If yes, Please teach me how :). Or is there any place I can bring my laptop to fix?\015

Answers :

I believe your first diagnoses was correct, and your second diagnoses is correct also.

1.Laptops have a poor cooling design. For one, all the hardware components are crammed into a small box. Very little room, for the needed airflow to keep the components cool.
For two, there is just a small fan bringing air in. For three, the Air Intake Duct is situated very close to where foreign debris, (Dust/Dirt/Food Crumbs/
Lint/you name it), is readily brought in.

2.When a processor becomes too hot, it turns off.
(Actually the BIOS program turns it off)
This is a Fail Safe feature built in, to keep the processor from burning up. (Literally! Like on fire!)

Your using a can of compressed air for computers, was a very intelligent move. I am concerned, however, of your statement of using it to try to clean out the 'Heat Out area'. This would suggest to me, that perhaps you tried to clean out the Exhaust Duct. The area you wish to clean out, is the Air Intake Duct. Where the air is brought in, not the Exhaust Duct.

What I believe has transpired, is that your use of compressed air, has made the fan bearings go out.
I explain that when cleaning out the Air Intake Duct, you should attach the plastic 'straw', stay about one finger length away from the Air Intake Duct grille, and press the trigger in all the way.
Start at the top left corner of the grille, and go across. When you reach the other side, let go of the trigger.

Drop down a row space, (Determined by the user. Usually it's one inch or so, but most people can make a pretty accurate determination, and it will be correct), and go across again. Keep going down in rows until you reach the bottom, then come back up to the top.

This time put the straw right up against the grille, However, use -> Short Bursts. Squeeze the trigger in all the way, but let go quickly.
Reasoning is, that the small fan inside, is only designed to spin so fast. Spinning it faster than it was designed for, can led to premature failure of the fan's bearings.

I suggest this time it was not the case. I believe you fan was on it's way out, getting ready to fail. It may have been running intermittently before, and the bursts of air you gave it, was the last straw. I believe this time you were at no fault.
I stated the air cleaning method, so that the next time, perhaps it will give you more confidence, and realize that you did nothing wrong.
Laptops, like all computers, must be cleaned out on a regular basis, and you are to be commended! (You did remove the AC adapter, {Charger}, and the battery, right?)

How to change that fan out yourself? First you need the fan, of course, then you need this PDF Maintenance and Service Guide, I'm about to give you a link to. It's really an in-depth Service Manual, don't let the name -> Guide, fool you!

1.Fan: I just did a quick search for an HP Pavilion dv6500T fan, and came up with a link on Ebay.UK,
http://cgi.ebay.co.uk/HP-Pavilion-dv6000-dv6100-dv6200-dv6500-dv6800-CPU-FAN_W0QQitemZ320359656472QQcmdZViewItemQQimsxZ20090413?IMSfp=TL090413193002r11179
This is NOT a recommendation by me, just an example, so that YOU may find a fan.

2.HP Pavilion dv6500T Maintenance and Service Guide. This is a link to HP.com/Support, and the Manuals page,
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&product=3369405&lang=en&

I would like you to go down to ->
HP Pavilion dv6500, dv6600 and dv6700 Entertainment PCs - Maintenance and Service Guide <- and click on it. It's the 10th one down in the list. It's 4.79MB's in size.
After you click on the above file name, you are downloading a PDF file. You have Adobe Reader on your computer, and it uses PDF files. If you do not have Adobe Reader 9.1, I would like to suggest you upgrade to it.

Also after you click on the link, you may not see anything happening for 20 to 30 seconds. The file is downloading, I assure you. When you see the first page come up, let the file download all the way, before looking through it.
AFTER, it has downloaded all the way, you can save a copy to your computer. This way you can burn it off to CD disk, look at it anytime you want, and delete it off of your computer, freeing up harddrive space.

Looking at the top header, look for the Floppy disk icon. It's the second icon from the left. Hovering your mouse cursor on it, will briefly reveal,
"Click to save this file to your computer or another location"
A -> Save a copy.. <- small window will come up.
Down below you will see -> File name, and a box to the right of it, with -> c01295877.pdf <- in it.
Unless you feel like looking for c01295877.pdf, then do this,
Put your mouse cursor right after the f in PDF.
Left-click Twice <-
Make a space with your space bar. Type Pavilion dv6500T Service Manual. A lot easier to find this way.

Start with Page 39. I suggest you buy an ESD wrist strap. They are cheap, ($6?), and will keep the static of your body, from burning out the delicate hardware computer components, in your laptop. You are going to be touching the processor, and static will burn it out in a New York minute! Connect the alligator clip of the ESD wrist strap to a good ground. I use an empty desktop computer case, and connect it to the metal frame.

Page 86, tells you, and shows you, the fan replacement procedures.
If you're familiar with laptop disassembly, then yes you could replace the fan yourself, but I would probably recommend taking it to an authorized service center, especially if you are within warranty (disassembling it yourself could potentially void your warranty). There's no easy way to replace the fans on these models, sadly, it'll require taking apart the entire bottom casing, keyboard and all, as the fans will each have power connections leading into the motherboard. If you're out of warranty though, the fans themselves shouldn't be too terribly expensive, maybe around the $30-50 USD mark.
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