I have replaced the Motherboard 2 times for my T43 notebook - is this a recurring defect?

What are the chances of getting a motherboard failing 2 times in period of 40 months? Thats what happened to me and I think the odds are extremely low UNLESS there is something else happening to cause this.
Does anyone know if there is a recurring defect with the T43 as I am now past my warranty period and am really upset as a new motherboard is nearly 1/2 the price of a new notebook. Unless this is a recurring defect and i can make a claim to Lenovo, I will be throwing the notebook into the waste paper basket.
Any suggestions will be REALLY appreciated.....

Well. you should be able to get a replacement mobo in Thinkpads.com or e-bay for less than that. Of course, you have to install it yourself.
Keith
Formerly 600E 2645, T30 2366, X31 2673, T40 2373, T41 2379, T42 2373, T42 2379, T60 1952, T61p 8889, T61p 8891
Currently T420 4177-CTO, T430 2347-A54, T430 2349-L64, T430 2347-UN9, T430 2342-CTR, Ideapad K1, H520S 2561-1LU

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Yes. It is an i3-3217U with integrated Intel graphics
So this is the motherboard:
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Also not in stock at Partsurfer.

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