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Chipkill protection on Ultras

807557Sep 22 2008 — edited Sep 23 2008
The Ultra 40 M2 offers chipkill memory, but the Ultra 20 M2 offers just non-chipkill ECC memory. How could the Ultra 20 M2 provide ECC but fail to provide chipkill protection, other than by using x8 DRAM chips instead of x4 chips? If I put two DIMMs each with 18 x4 chips in an Ultra 20 M2 and set the processor's ChipKillEccEn flag, will the system have chipkill protection?
Also, is the processor's memory scrubbing feature enabled by default by either system's BIOS, or is enabling it the responsibility of the OS?
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Locked on Oct 21 2008
Added on Sep 22 2008
#servers, #workstations-general-discussion
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