VR Zone published some info on a note from NVIDIA that urges OEM/ODMs to transition to mobile GPUs with the latest underfill to prevent failure:
Nvidia has come out with a new GPU called NB8E-SET which is essentially NB8E-SE with the new underfill. NB8E-SE is used on many notebooks most commonly advertised as GeForce 8700M GT, GeForce 8800M GS or GeForce 9650M GS. NB8E-SET (G84-751) uses the new Hitachi underfill and is clocked at 625MHz core and 128-bit 800MHz GDDR2/3 memories similar to the current NB8E-SE.
Here's a note from Nvidia to their partners :
NVIDIA is committed to providing our customers with quality products that push the edge of technology and also continuously improve product quality and reliability. To help improve the product quality and ensure smooth and uninterrupted product supply during the current “end stage” of life cycle, NVIDIA strongly recommends that customers transition to this latest revision of the NB8E-SET GPUs as soon as possible. These latest revision units utilize “Hitachi” underfill packaging material that improves product quality and enhances operating life by improved thermal cycling reliability.