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What is ECN in reference to motherboards?

Looking at AMD's site for recommended motherboards for my PC I see a note at the bottom that states:

Motherboard Notes:
ECN: GH42001 required.

    * For information or questions regarding ECNs please contact the motherboard vendor.
    * Motherboard incorporates CPU temperature protection.
    * Advanced Power Savings with Halt/Disconnect Clock Ramping supported.


What is ECN?  I cannot find anything more about it.  Is it something I need to buy if I get this motherboard?
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Calith
Asked:
Calith
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1 Solution
 
WatzmanCommented:

ECN = Engineering Change Notice.  Strictly, the document describing some revision that was made to the motherboard by the manufacturer.  Very similar to a "Rev" or "revision" level, although there is a subtle difference.

Your note suggests that ECN: GH42001 is required (for something).  GH42001 is a specific ECN in the numbering system used by that manufacturer (the numbering system and name has no universal meaning outside of the engineering dept. of any one company).


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J-A-LCommented:
ECN doesn't necessarily correlate to board revision#.
ECN as stated above is Engineering Change Notice and gives reference to a change or modification made to the unit... motherboard or anything really.  If an engineer changes the value on a capacitor, a change notice would be associated with that.

Jeff
at yourtechonline.com
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CalithAuthor Commented:
So would I have to do anything to the board if I bought it?
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WatzmanCommented:

It's not a given that you can install an ECN yourself -- an ECN can vary from simple (as simple as a label being applied to the board) to extremely complex (a whole new PC board).  There's no telling what an ECN is, and in general there is no way for you to find out (most companies consider ECN's "secret").

Why don't you give us some context for this question?  What is the subject motherboard, and where did you see this "ECN: GH42001 required" note?
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CalithAuthor Commented:
Its from the AMD site, recommended mobo's for my chip.  I have the AMD Athlon™ XP 3000+ (333 FSB)

http://www2.amd.com/us-en/recmobo/DetailHandler/1,,30_182_869_4348%5e7923,00.html?queryID=73983

ECS

ECS
Model: L7VMM4
(KM400-M)
Revision: 1.0
Form Factor: uATX
Chipset: VIA KM400 AGP DDR
Bios: 08/03/2004 or later.             
Recommended Speeds:
AMD Athlon™ XP 3000+ (333 FSB)
AMD Athlon™ XP 2800+ (333 FSB)
AMD Athlon™ XP 2700+ (333 FSB)
AMD Athlon™ XP 2600+ (333 FSB) Model 8
AMD Athlon™ XP 2600+ (333 FSB) Model 10
AMD Athlon™ XP 2600+ (266 FSB)
AMD Athlon™ XP 2500+ (333 FSB)
AMD Athlon™ XP 2400+ (266 FSB) Model 10 w/ 256K Cache
AMD Athlon™ XP 2400+ (266 FSB)
AMD Athlon™ XP 2200+ (266 FSB) Model 10 w/ 256K Cache
AMD Athlon™ XP 2200+ (266 FSB)
AMD Athlon™ XP 2100+ (266 FSB) Model 8
AMD Athlon™ XP 2000+ (266 FSB) Model 8
AMD Athlon™ XP 2000+ (266 FSB) Model 10 w/ 256K Cache
AMD Athlon™ XP 1900+ (266 FSB) Model 8
AMD Athlon™ XP 1800+ (266 FSB) Model 8
AMD Athlon™ XP 1700+ (266 FSB) Model 8
AMD Sempron™ 3000+ (Socket A)
AMD Sempron™ 2800+ (Socket A)
AMD Sempron™ 2600+ (Socket A)
AMD Sempron™ 2500+ (Socket A)
AMD Sempron™ 2400+ (Socket A)
AMD Sempron™ 2300+ (Socket A)
AMD Sempron™ 2200+ (Socket A)
            

Motherboard Notes:
ECN: GH42001 required.

    * For information or questions regarding ECNs please contact the motherboard vendor.
    * Motherboard incorporates CPU temperature protection.
    * Advanced Power Savings with Halt/Disconnect Clock Ramping supported.
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