Sun memory board errors

[Eric A. Pearce]

We have had several error messages of the following type on 2 systems:

(1) 	Sun 4/280 Sun 3.2 SPARC 
	32 meg (4 8-meg boards) 

	mem3: soft ecc addr 469710 syn 75<S16,S8,S4,S1,SX> 48 U1848
	mem3: soft ecc addr 469710 syn 75<S16,S8,S4,S1,SX> 48 U1848

(2)	Sun 3/280 Sun 3.5
	24 meg (3 8-meg boards) 

	mem1: soft ecc addr 5291f8 syn 19<S4,S2,SX> 26 U2126
	mem2: soft ecc addr 76ad58 syn b<S2,S0,SX> 30 U2130
	mem2: soft ecc addr 72c100 syn 23<S8,S0,SX> 07 U1907

I would like to know the following:

What board is the error happening on - is 'mem0' the first 8 meg board?
(and mem1 the second, etc) (the Sun FE I talked to "thought" so - does
anybody know for sure?)

How many errors should occur before I should start worrying about
replacing the board?  (Sun FE says 'several hundred' - I don't think it is
right to put up with errors when you have a hardware service contract)

How do you read the error message?  Can you tell where the error occurred
down to which chip it is?

Thanks in advance...

-e

Eric Pearce
Boston University Information Technology
111 Cummington Street 
Boston, MA 02215
617-353-2780 (voice)
617-353-6260 (fax)
eap at bu-it.bu.edu
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