[rescue] memory error on Ultra 1 - what should I do?

[Mike F]

On Tue, Aug 24, 2004 at 09:21:58PM -0500, Bill Bradford wrote:
> On Tue, Aug 24, 2004 at 09:59:26PM -0400, Patrick Giagnocavo wrote:
> > Aug 21 02:05:28 cp     UDBH Syndrome 0x8a Memory Module U0604
> > Aug 21 02:05:28 cp SUNW,UltraSPARC: [ID 332164 kern.info] [AFT0] errID 0x00024500.7cb41d9d Corrected Memory Error on U0604 is Persistent
> > Aug 21 02:05:28 cp SUNW,UltraSPARC: [ID 623035 kern.info] [AFT0] errID 0x00024500.7cb41d9d ECC Data Bit 55 was in error and corrected
> > What should I do ?  Do I need to replace what is in U0604 ?
> 
> First, remove, clean, and reseat all the memory.  If the problem stays with
> the SIMM, replace the SIMM.

I've been experiencing similar ECC errors on a recently acquired Ultra 2. 
I've gone through several iterations of removing, cleaning, and reseating 
the memory, and swapping individual modules to different slots, but the 
ECC errors stay with the same 2 slots, in my case U0401 and U0601. Any 
idea what this means? 

Anyway, I'm glad this machine works at all - when I got it, it was 
*totally* dead  to the world, but it turned out to have a loose connection 
inside the power supply :)

- Mike