OT: Slow booting, was re: Booting an IBM MP 3000 S/390 System

Noel Chiappa jnc at mercury.lcs.mit.edu
Tue Aug 11 07:36:13 CDT 2015

    > From: Chuck Guzis

    > Could it be that the presence of ECC registered SDRAM requires that
    > every memory location get written before boot-up can proceed? There's
    > 2GB of the stuff, so that could be the difference.

I was going to suggest that, actually. Turning on ECC in the memory in a
somewhat older HP minitower machine caused a long delay in booting while it
cleared all the memory.


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