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SOLVED IQ770 fan sunon GC125025vh-a problem

post #1 of 8
7/29/11 at 8:08pm
Thread Starter 
I just recently fixed my friend's computer (HP touchsmart IQ770). The problem is heat issue which causes graphic card burned out. Actually, the problem is the dust and the fan. This fan is discontinued and you can not buy a replacement.

this model has intergrated graphic chip inside Northbridge chipset. If you know how to remove some parts and switch display connector to internal intergrated graphic card, you can give this computer another life. However, the most common part is the main "blower" is not working!.

Dont try to rip it apart!!!!! you will end up with broken fan.

Here is what I did for the fan and the computer is running well

1. Remove the top cover of the machine by unscrewing two small screws from the back
2. Remove 4 pins fan connector
3. Unscrew 3 small screws to remove the fan
4. Pill out the "sunon" label
5. Using 1mm drill bit, and drill a hole on bronze cap, closed to perimeter (not center, will hit the fan shaft). See picture #3 for diagram where to drill
6. Spray WD40 to that hole, in order to let fan blades free
7. Put a drop of SEA40 oil in there, and cover it by thin tape.

It is done, and the computer is fine



Edited by caferhum - 8/2/11 at 8:46pm
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post #2 of 8
8/1/11 at 1:55pm
I will try this solution, but am confused where to drill the hole. Am I drilling through the plastic where the label was, as close to the gold colored shaft?
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post #3 of 8
8/2/11 at 8:50pm
Thread Starter 
Quote:
Originally Posted by PKSCHB View Post
I will try this solution, but am confused where to drill the hole. Am I drilling through the plastic where the label was, as close to the gold colored shaft?
hi, I just edited my "how to" step instruction a little bit in order to indicate where to drill. Hope this will help.

You look in picture #3, which is a diagram, you should see where to drill 1mm hole on the bronze cap after pilling out sunon label.
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post #4 of 8
1/3/12 at 10:23pm
I followed caferhum's suggestion and it worked great on my hp touchsmart 700 cpu fan. Thanks for posting caferhum. I also attached this suggestion to www.touchsmartdevzone.com discussion on this same issue since it took a long time for yahoo or google search to find this suggestion by caferhum.

I will let you know how long fan last but is is working great now and is quiet again instead of making a lot of noise. Caferhum may have saved me $100 by not having to buy a new blower and heat sink replacement recommended by HP.
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post #5 of 8
7/9/12 at 6:43am
I signed up for the site just to say THANK YOU THANK YOU THANK YOU, this fix saved a fan in one of my friend's PCs and saved me the headache of trying to find or retrofit a replacement. Kudos for an excellent tutorial, the only thing I would add is the drill bit may take a little while to catch but just be patient, otherwise it was rock solid!

Best Regards,
whoabuddy
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post #6 of 8
9/9/12 at 9:55am
Just applied this fix to our !Q770 and it worked perfectly. Thanks!!
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post #7 of 8
9/9/12 at 9:57am
I used a Dremel Mototool with a 1.15mm Carbide Drill bit an is made a clean hole in about 10 Sec.
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post #8 of 8
12/14/12 at 12:29pm
i am grateful for your efforts. still won't fire up for me. it was a basket case when i got it. dropped, abused, and the internal damage: vista and the hp crap trying to be an apple. after installing ubuntu, it was a good ride.
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