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ECA 051 - 8580 system board



ECA 051 - 8580 system board

 

Intermittent OS/2 trap errors/NMI on 25 MHz model 80 units

PURPOSE:
To provide a replacement system board for 25 MHz 8580 systems with "8 megabytes" of system board memory installed, which are experiencing intermittent planar memory parity errors, such as OS/2 trap 0002, or NMI errors on other complex operating systems.

AFFECTED systems
8580 models A21, A61 and A16

PHYSICAL check:
Examine the "modules" in position "U24" and "U34" located near J8 and J9, the system board memory sockets. If the "modules" are identified with "FC841" the system board should be replaced using this ECA:.
"modules" identified with "FC841 are good and the system board does not qualify for this ECA:.

Information printed on the base card should be ignored and only information printed on the "module" should be used for making this physical check.

DETAIL:
Intermittent TRAP 0002 errors may be experienced on 25 MHz 8580 systems running OS/2 due to a timing condition on the system planar. Other complex operating systems may experience NMI or other errors depending upon the characteristics of the operating system.

NOTEs:
This ECA only applies to the 25 MHz 8580 models listed above, which have the affected "module" numbers in position "U24" and "U34", other 8580 models are not affected and are not eligible for this ECA:.
Order the current level system board FRU P/N 85F0046, using normal parts ordering procedures.


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