Any reason all nVidia laptop cards fail after 2 year use?

I've had three laptops so far, all had nVidia cards. All of the laptops failed after about 1-2 years usage, and the problem was always the graphics card malfunctioning in one way or another.

Can somebody tell me why this happens? The last card that failed was the 8800M GTX in my NP5797. I never overclocked the card, barely played any games, and when I did, I always made sure the laptop was nice and cool. The card has mostly been passive for 2 years, I've maybe played games for a total of 50 hours or so with it. Idle temps are usually 40-45 degrees celcius, yet it fails after 2 years...I don't get it....

 

A 3 part report starts here.

Why nvidia's chips are defective - The Inquirer

They're being sued over it.

 

The right thing to do for Nvidia, would be to send replacements cards built with the new technology that does not mess up the "bump" as explained in the article above.

 

Another thing to consider is the absence of MEM temperature sensors. Nvidia GPU's normally show a single temp (core?), ignoring the memory which usually runs warmer and dies sooner. So if your card shows 85C during games, it doesn't mean that it doesn't get ~ 100C on the memory.
It's recommended to replace thermal pads and paste every year or so to help the situation.

 

Basically any chip prior to the 200 mobile series has a good chance of dying. We all hope they have fixed the problem with the 200 series as they appear to have changed their underfill-solderbump combo, but only time will tell.

 

I have an Asus G1 with the Nvidia Geforce to go 7700 that still runs great after 3 1/2 years. There was some concern that even the 7000 series may have been impacted with the solderbump problem, but so far mine is holding on.

 

My 7900 failed after half a year usage, basically a new record. Didn't even play games with it AT ALL.

 

My 7950gtx gave up the ghost after 3 and a half years. Baking fixes it temporarily. Long story short, the solder used was not designed for the high to low temp cycles of laptops.

Nvidia uses a different solder now.
However, the current design trend that it is ok to let a card hit the 90*C+ will probably negate some of that benefit and shorten the newer cards' lives from both companies anyhow...

 

I am starting to get scared now. My laptop is approaching the 2 years limit. How long is the warranty for the video cards in the D901C?

 

im upto 19 months now with my nexus/m860tu 9800GT and its still going strong.

depends if you took the extra 2nd and 3rd year warranty out pasoleatis.
dont think you need to worry much as you dont hear of many kobalt graphics card failures.

 

my g1s with 8600m gt was in for warranty 3 times within the 2 year warranty. the 3rd time they replaced it the board with a 9500 gs if im not mistaken. took a slight performance hit but didnt care one bit.

sold it shortly after