Determining faulty memory module

From: <shoyle_at_csc.com>
Date: Fri, 07 Jan 2000 15:26:44 +0000

Hello,

I'm getting Bcache errors which seem to indicate a faulty memory
module. How can I determine the faulty module, other than doing
a lot of module swaps?

Thanks for any advice,
   Gernot

Some details:
I'm running Dig.Unix V4.0D+pk3 on a Digital AlphaPC 164 500 MHz,
Firmware revision: 4.9, SRM console.
The memory consists of 8 SIMMs a 32 MB, 60ns with parity,
the width of the memory bus is set to 256 bit.

A typical "dia" entry:

DECevent V2.8


******************************** ENTRY 1 ********************************


Logging OS 2. Digital UNIX
System Architecture 2. Alpha
Event sequence number 4.
Timestamp of occurrence 07-JAN-2000 15:26:50
Host name alpha

System type register x0000001A EB164 or AlphaPC164
Number of CPUs (mpnum) x00000001
CPU logging event (mperr) x00000000

Event validity 1. O/S claims event is valid
Event severity 1. Severe Priority
Entry type 100. CPU Machine Check Errors

CPU Minor class 3. Bcache error (630 entry)

Entry Body Size: x00000068
Entry body:

          15--<-12 11--<-08 07--<-04 03--<-00 :Byte Order
 0000: 00000038 00000018 80000000 00000060 *`...........8...*
 0010: FFFFFF00 0E31D7DF 00000000 00000086 *..........1.....*
 0020: FFFFFFF0 C1FFFFFF 00000000 00000002 *................*
 0030: 00000000 00000000 00000001 00000000 *................*
 0040: 00000000 00000000 00000000 00000000 *................*
 0050: 00000000 00000000 00000000 00000000 *................*
 0060: 5E3C7E25 00000000 * ....%~<^*



******************************** ENTRY 2 ********************************
Received on Fri Jan 07 2000 - 15:39:58 NZDT

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