Do moderators look at some of the answers given?
Seriously!
Although the thread was started in 2008, it seems to have gone on.
With the intent that someone may have this problem in the future;
The HP Pavilion dv2000 series, dv6000 series, and dv9000 series Notebook PC's, have a cooling system problem.
More specifically cooling for the graphics chipset.
(There are other models of HP's, and Compaq's, that have this problem also)
Primer:
Chip and Chipset are slang terms for I.C.
Integrated Circuit,
Integrated circuit - Wikipedia, the free encyclopedia
The I.C. used for graphics is the graphics chipset, or G.P.U.
Graphics Processing Unit,
Graphics processing unit - Wikipedia, the free encyclopedia
The graphics chipset is soldered to the motherboard, (Integrated Graphics) with a BGA surface mount.
To explain a BGA surface mount;
Compare to an older Intel Pentium 4 processor, that uses a Socket 478 processor socket.
The bottom of the processor has contact pins.
478 of 'em.
The processor socket has matching socket holes. (478 of them)
With a BGA surface mount there are NO contact pins, nor socket holes.
Solder Balls take the place of the contact pins, and Copper Pads on the motherboard take the place of the socket holes.
Ball grid array - Wikipedia, the free encyclopedia
The graphics chipset is set down on the motherboard, with the Solder balls lining up on the Copper Pads. (The Copper Pads also have a gold plating on them )
Heat is then applied at a specific temperature, and length of time.
The Solder Balls melt, which solders the graphics chipset to the Copper Pads.
(Which in turn of course, solders the graphics chipset to the motherboard)
With poor cooling for the graphics chipset, the chipset overheats. Constant overheating will soften (partially melt), the solder joints for the graphics chipset to motherboard.
Then the chipset cools down rapidly.
This creates cold solder joints, and a poor connection of graphics chipset to motherboard.
The cooling system consists of;
1) Heatsink
2) Cooling Tube
3) Fan Assembly
A) Cooling Tube:
The Cooling Tube is a slightly flattened copper tube, sealed on both ends, and filled with Nitrogen.
At one end the Heatsink is mounted. At the opposite end are two small metal plates. Spaced away from each other.
One small metal plate sits on top of the Processor.
The other small metal plate sits on top of the GPU. (Graphics chipset)
2) Heatsink:
Basic construction of the Heatsink is a small thin piece of metal, that has Tall, Thin fins protruding from it.
The thin piece of metal absorbs heat from whatever object it is placed against, and the Tall, Thin fins radiate the heat away.
3) Fan Assembly:
The Fan Assembly consists of the Fan, and surrounding cage. (Shroud)
Heat is absorbed from the Processor, and graphics chipset by their small respective metal plates. Heat is then absorbed by the Cooling Tube.
The Cooling Tube transfers the heat up to the Heatsink.
The Fan Assembly's air flow, helps carry heat away from the fins of the Heatsink.
Primer over.
The surface area of the small metal plate for the graphics chipset, is inadequate in size.
THIS, is the cooling system problem.
(The surface area of the small metal plate for the Processor, is BARELY adequate in size)
The 'cure' for the problem, is to add surface area for the graphics chipset's small metal plate.
This is carefully done with copper sheeting.
ALWAYS replace the Thermal Paste.
(Goes in-between the top of the Processor's case, and the bottom of it's small metal plate. Same thing for the graphics chipset.
In-between the top of it, and it's small metal plate)
For one, Thermal Paste dries up over time. Looses it's conductivity.
For two it has been constantly over-heated on the graphics chipset.
If a Thermal Pad is used, remove it, fly it at the cat.
They are J-U-N-K, and cannot be reused anyway.
(NEVER use a Thermal Pad. Also DO NOT use Thermal Glue )
All the cheap 'quick fixes' you hear about, and read about are J-U-N-K!
They are TEMPORARY fixes at best.
The best solution is to use a BGA Rework Machine.
Send the motherboard out, and have the BGA surface mount reworked. (Flowed)
The following link is for REFERENCE only. I do NOT subscribe to the 'Torch' method.
(In fairness to the author however, he states in the comments section { Show more }, that using a BGA Rework Machine IS the way to go),
HP DV2000 Blank Screen Nvidia video problem. BGA reflow Fix! - YouTube
Replace the motherboard?
Why?
So you can have the SAME problem again?
Regards,
joecoolvette