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
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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.
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,
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)
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. (NOTE*)
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)
CAUTION!! 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,
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!
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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
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
Scan the system for viruses. If no virus found check ur power options settings in control panel. Still u experience the same problem just uninstall anti-virus program from ur pc. This will fix ur problem mostly.
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.