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HP Pavilion D4600Y processor fan/heatsink dying

The fan/heatsink on my desktop PC is dying. I have contacted both intel and hp, and neither one carries the part or makes recommendations. The processor is an Intel(R) Core(TM)2 Quad Processor which means it takes a very odd-shaped fan. The fan that's dying is made by AVC and the number on it is D8101NC

Anyone got any ideas?

Thanks so much!

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Check this link. it is for ebay web site
On ebay site the brand of the fan and model number

Thank you

Posted on Aug 01, 2008


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My hp pavilion model g6-2240as when restarting, states that the fan is not working properly and then cuts out in about 15 seconds. I do not know what to do. It has windows 8.1 operating system and the...

This is a common issue with laptops. Quite often, however, the problem is not the fan, but the heatsink that the fan blows the air over to remove heat from the processor. People tend to lay their laptops on their laps, beds, sofas, and carpets when they use them. This sucks massive amounts of dust, hair, lint, etc. into the cooling passages and clogs the heatsink. Many laptops are now made so that the heatsink can be removed for cleaning. If the heatsink is clogged, the fan cannot cool the processor and the processor overheats. This causes the cutting out for processor protection.

Aug 23, 2014 | HP Pavilion Computers & Internet

1 Answer

Hp dv4000 freeze

I am aware of the HP Pavilion dv2000 series, Pavilion dv6000 series, and Pavilion dv9000 series of Notebook PC's, has a problem with inadequate cooling for the graphics chipset.

Surface area of heatsink plate attached to Cooling Tube, is too small.
Also A few other model series of HP's, and Compaq's.

But was not aware of the Pavilion dv4000 series has this defect in design.

For the dv2000 series, dv6000 series, and dv9000 series, the heatsink plate on the Cooling Tube, is too small in surface area,

Pavilion dv6000 series - Fan Assembly/Heatsink assembly,

Note all the way to the right. Note the Tri setting of the 3 'screw arms', and the rectangle shape in the center. (Rectangular copper plate with residual thermal paste still on it)

THAT rectangular plate sits on top of the Processor.
Go to the left, and in-between it, and the Fan Assembly, is another small rectangular shape. Vertically placed compared to the Processor heatsink plate, and formed from the aluminum of the Cooling Tube brace.

Inadequate in surface area.

Now here is a Thermal Cooling Module for a Pavilion dv4000 series,

The Processor sits on the Bottom of the motherboard. Heatsink copper plate that you see removes, and is accessed through a panel on the bottom of the laptop.

The GPU, or graphics chipset, sits on Top of the motherboard. It is covered by the thin metal System Board Static Shield. (Plate)

THAT, is it's Heatsink plate.

Motherboard photo showing the Top view of the motherboard,

Note what looks to be a white rectangular label, in the center of the motherboard. Vertically placed.
Note the Green square object to the left of it. Has a blackish smaller rectangle in the center.
(GPU mounted to the graphics chipset's, green circuit board)

Nvidia GeForce Go 6100, or GeForce Go 6150. (Code name C51M)

That is for models that have Discrete Graphics.

One's that have Integrated Graphics use Intel GMA 900, which is incorporated in the Intel 915 series motherboard chipset.

Top View again, only showing the System Board Static Shield, mounted this time,

Pretty sure that large surface area of the System Board (Static) Shield, is VERY adequate to cool the graphics chipset.

-> I do NOT concur with your findings.

BGA surface mount:

Ball Grid Array surface mount.
To explain the BGA surface mount;

Compare to an older Intel Pentium 4 processor, that uses a Socket 478 processor socket,

The processor has 478 contact pins on the bottom.
The processor socket has 478 matching socket holes.

With a BGA surface mount there are no contact pins, nor socket holes on the motherboard.
In place of the contact pins are Solder Balls.
In place of the socket holes are matching Copper Pads.
(The Copper Pads are gold plated )

The chipset, (Graphics chipset, or GPU, in this case), is set down on the motherboard, with the Solder Balls lining up on the matching Copper Pads.
Heat is then applied at a specific temperature, and length of time.

This action partially melts the Solder Balls, and solders the graphics chipset to the Copper Pads.
Which of course solders it to the motherboard.

With constant repeated overheating of the graphics chipset, the solder connections (Solder Joints), that were made start to partially melt.
When the laptop cools down again from being turned off, the solder joints now re-solidify, and this causes Cold Solder Joints.

Cold solder joints create a poor contact. Poor contact of graphics chipset TO motherboard.

To -> Re-ball is to remove all said solder that is left on the graphics chipset, and reapply each Solder Ball again.
Very doubtful this needs to be done, and the term Re-ball is flipped off the ****** of those who really do NOT know what the h3ll, they are talking about.
Makes it tough for those who do not know the technology, and are trying to learn.

Reflow is what is meant.

Observe a BGA Rework Station in action, and learn more about Solder Balls, Copper Pads, and the BGA surface mount technology,

Scroll down, click on the Red -
Take a few minutes to view the IR 650 demo video

The thermal paste solution used are Thermal Pads.
One on top of the Processor, and one on top of the graphics chipset.
These are to be peeled off, and flown at the cat.
They are -> JUNK, and cannot be reused anyway.

The top of the Processor, top of the GPU on the graphics chipset, and bottom of both small heatsink plates attached to the Cooling Tube; are to be THOROUGHLY cleaned, and new, fresh Thermal Paste is PROPERLY applied.

I use an old credit card to scrape as much old Thermal Pad residue off, that I can, then follow with LOTS of Q-tips dipped in Isopropyl Alcohol.

(91 percent is best, but 70 percent will do. I do NOT recommend 50 percent. 50 percent WATER, and 50 percent Alcohol)

Isopropyl alcohol is EXTREMELY FLAMMABLE!
Use in a WELL ventilated area with NO sparks or flames present!

I am still of the mind that the inside of the laptop needs to be cleaned, Thermal Pads removed, and fresh, new Thermal Paste applied.

Let's say I am wrong.
If there is inadequate cooling for the graphics chipset, buying a replacement motherboard just puts you back at square 1.
Sooner, or later the graphics chipset will overheat again, and the problem will re-occur.

If the above holds true you need to increase the cooling surface area, for the graphics chipset.

Just for edification, and Not advertising;
This is one tech's solution for the HP Pavilion dv2000 series, dv6000 series, and dv9000 series of Notebook PC's;
Example shown is for the dv6000 series,

HP Support > Pavilion dv4000 series of Notebook PC > Service Manual,

Click on the first file listed;
HP Pavilion dv4000 Notebook PC and Compaq Presario v4000 Notebook PC - Maintenance and Service Guide.

Ignore if you are aware;
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.
(Took me 6 seconds using a medium speed DSL connection)

WEAR an ESD wrist strap, and have it's alligator clip attached to a good ground source.
A Processor is the MOST susceptible hardware component to Static shock.
Average cost is around $3 to $6.

I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case.
I feel an Anti-Static mat is unwarranted.
You can also set a large metal serving tray (Unpainted), on the table you are working on, and connect to it.
Or a large metal knickknack. (Unpainted)

Thought I was just 'another pretty face', huh? Lol!

For additional questions please post in a Comment.


Oct 30, 2012 | HP Pavilion dv4000 Notebook

1 Answer

"CPU fan stopped working" message,

You can order a replacement fan from HP. Search for replace parts under your model computer when you go to HP's web site.

Aug 09, 2011 | HP Pavilion p6370t PC with Intel R Core TM...

1 Answer

Wont boot up to desktop

remove the computer covers remove the memory from slot and clean the memory with clean soft clothalso remove the processor fan from the socket clean the surcace of the heatsink and the processor and apply thin layer of heatsink solventand fix the processor fan firmly on the processor socket

Jan 15, 2011 | HP Pavilion dv6000z Notebook

1 Answer

Dear Sir sir i have hp desktiop pc and i have

You need to remove the Heatsink from the CPU and re apply heatsink compound to both the CPU and the heatsink then replace the heatsink onto the CPU. the reason for the overheating and shutdown is that the connection between the heatsink and the CPU has become "Aged" and no longer transfers the heat like it should

Jul 20, 2010 | HP Compaq d530 SFF PC Desktop

3 Answers

Cpu fan failed haved system serviced immediately system will power down in 5 seconds

After the computer has powered off, unplug it from power.

You need to replace the Processor fan.

(CPU stands for Central Processing Unit.
Another term used is Microprocessor, or simply Processor)

When a Processor becomes too hot, (Passes it's thermal limit), the Processor turns off.
(BIOS turns it off)

This is a Fail Safe feature to keep the Processor from burning up.
(Literally in some cases, as in on Fire!)

Your motherboard was made by TriGem.
It's a TriGem 2002052.
HP's name is Glendale.

Scroll down for a photo, and illustration of the motherboard.

There are No hardware components installed on the motherboard.
No Processor, Ram Memory, or any expansion cards in those white PCI slots.

The Black rectangular 'frame' you see, with the White rectangular block in the middle, (Has socket holes in it), is where the Processor plugs in.

When you open your computer, you will not see the Processor.
It is under the Heatsink, which is under the Processor fan.

Basic example of a Heatsink, with a Processor fan sitting on top of it,

It is that CPU fan, (Processor fan), that has failed.
The fan has bad bearings, and is no longer spinning, or spinning Very slow.

(Or spins a few times, stops, then spins a few times again, and so on)

Replace the Processor fan.
A better method is to replace the Heatsink, and Fan as a combo.

As shown in the above link.

The HP Pavilion 513c desktop computer, uses an Intel Pentium 4 processor, or Intel Celeron processor, that fits in a Socket 478 processor socket.

HP Pavilion 531c specifications from HP Support,

Not very explanatory, I'll admit, but under the heading
Base processor and speed,
it lists,
C(W) 1.8GHz /400

Stands for the Processor when operating at maximum capability, will have a frequency rate of 1.8GHz

The 400 stands for 400MHz FSB.
(Front Side Bus)

Looking back at the motherboard illustration, you will see - Socket 478 printed on the processor socket.
Only used for Intel Pentium 4 processors, and Intel Celeron processors.

You need a Heatsink/Fan combo that fits on a Intel Pentium 4 processor, that fits in a Socket 478 processor socket.

1) Work on a table

2) Computer unplugged from power, open the computer case.

3) Observe Anti-Static precautions

[Anti-Static Precautions:

Your body carries Static electricity.
Static will fry out (Short Circuit) the hardware components inside a computer.

Power unplugged from the computer, TOUCH the metal frame of the open computer case.
This will relieve your body of Static.

Should you get up, and leave your computer in the middle of working on it, upon your return be Sure to Touch the metal frame again ]

4) Use a can of compressed air for computers, and attach the plastic straw provided to the can of air's nozzle. You may wish to use a dust mask.

[DO NOT use a vacuum! Vacuums create Static electricity]

4) Spray the inside of the computer out.
Start at the top left corner, and go across to the top right corner. Let go of the trigger.

Start again. Drop down a space, (1 inch or so), spray another row across.
Keep going down in rows.

If there is thick 'Gunk', (Dirt, dust, hair, etc.), use Q-tips to dislodge the gunk, then spray air again.
(You are in essence breaking the 'crust', then the can of air can spray it out)

When you reach the bottom, tilt the case towards you, spray the bottom of the case (Computer case) out.

5) Unplug the 20-pin ATX main power cable.

[Example of a 20-pin ATX main power cable, and it's connector,

Note the plastic locking mechanism on the side of the connector. This lock works like a see-saw on a playground. It is hinged in the middle. Squeeze the top of the lock in, to unlock it ]

6) Remove the 4-pin ATX +12 Volt power cable.

Has a lock on the side also.
(Don't forget to plug it back in, when you are finished installing the new Heatsink/Fan combo. It is power for the Processor.

Make sure both power cables above are plugged in tight, when reinstalling them)

Continued in a Comment.

Jul 01, 2010 | HP Pavilion 513c PC Desktop

1 Answer

When i try to start system it will no boot up. amber hd light stays on. i opened up hd and replaced board. mother board fairly new. replaced it with rebuilt one. what should i try next?

1) Why was the motherboard replaced?

2) If this is in reference to an HP Pavilion Media Center M1070n, it uses an Intel Pentium 4 Model 520 (2.8GHz) processor.

Did you make sure you plugged the 4-pin ATX +12 Volt power cable, into the motherboard?
This is power for a Pentium 4 processor, and on up.

This is HP Support, and the Motherboard Specifications page, for the HP Pavilion Media Center M1070N,

Scrolling down the page is an illustration, and a photo of the motherboard.

Below the Processor socket is the Northbridge chip.
(The Northbridge chip, and the Southbridge chip are the motherboard chipset)

Intel i915P MCH

In the motherboard photo, and installed in your computer, the Northbridge chip has an aluminum heatsink sitting on top of it. (Has fins on top of the heatsink)

Going across to the Left, from the top left corner of the heatsink, is a square connector with 4 socket holes.
The female connector on the motherboard, for the 4-pin ATX +12 Volt power cable.

4-pin ATX +12 Volt power cable,

Two Yellow 12 Volt wires, two Black Ground wires.
Let's start with this, and go from there.

May 27, 2010 | HP Pavilion Media Center M1070n...

2 Answers


Open the case and make sure all the connectors are attached and where they should be.


Aug 31, 2008 | HP Pavilion a305w (DM181AR) PC Desktop

1 Answer

The cpu heatsink clip has come apart, would like to know how to fix. the model is hp pavilion

That's what usually breaks if you have a 478 pin cpu. Should be available in any computer shop. If the actual metal bracket on the heatsink broke you will have to buy a new fan/heatsink. Both solutions are cheap.

Apr 24, 2008 | Computers & Internet

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