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Intel heatsinks bending boards

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rtgwbmsr:
Check this out:



That can't be good for the board! It has to have some effect on the longetivity of the thing. Yet Intel insists it's fine.

RudeCat7:
I'm sure Intel would.  :rolleyes:

pkd_lives:
Where is that from, is it your board? That is not good. If there are ANY traces or components under the board it is not acceptable.

It certainly looks heat damaged, and if it is then it is a long term threat. The board is conducting heat and this process will continue.

As FR4 contiunes to conduct heat a limit is reached, where it cannot conduct any more heat, and this will cause the warping. The warped area will see a decline in it's abiltity to disipate heat (which is good but not that good in the first place) This also alters the environmental characteristics of the board. You can no longer guarantee any environmental spec on the board (heat, vibration, cooling, etc.). It is potentially possible that traces and components will be damaged as a result of the spreading. If that much heat is failing to be dissipated from the board then nearby components will also be suffering. The trouble is that it might take a few years, and in that case the board will be obsolete before it actually causes damage, and therefore no support is necessary.

It is bad design. However it depends on who placed the heatsink, and whether or not the enclosure met the specs. Not enough information to state who is responsible. But it is not acceptable - whoever claimed that does not know what they are talking about, or they based their decision on the fact that the board will be obsolete before more serious damage can occur.

rtgwbmsr:
Where I got it from was an Intel tech doc.
Get it here:
http://developer.intel.com/design/pentium4/guides/298590.htm

It's on page 9 of that PDF file. On that page there is that picture and this text:

 
quote:  The boxed Intel

pkd_lives:
Nasty.

Classic cop out. The owness is on the motherboard designer, and quite correct that it is materials dependant.

It may be normal to see warping but it is not right. This is a design flaw which demonstrates that x86 is nearing its life span - unless they start on a ridical physical design change. Unfortunately things like this are going to become more and more common. until they totally redesign the processor from a physical standpoint.

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