yesterday at 10:00 PDT I modified h1susey's BIOS setting for 'Power Technology' from 'Max Performance' to 'Disabled'. The CPU usage of several models subsequently ran about 1uS longer showing the setting was indeed changed. The hope was that this would stop the occasional IOP model glitching, where we see either a transient ADC error (STATE_WORD=4) or a combined transient ADC and Timing error (STATE_WORD=6).

Trending SUS-EY IOP STATE_WORD (listed below) shows glitches after this change was made. I am masking out the upper bits of the STATE_WORD, only showing the first 3 bits to remove reporting on Overflows. EX glitches are also shown for comparison as an unmodified machine.

h1iopsusey STATE_WORD:

Aug 28 2017 17:17:42 PDT 6
Aug 29 2017 05:57:42 PDT 6
Aug 29 2017 08:12:42 PDT 6
Aug 29 2017 08:13:42 PDT 6

**** BIOS Modified 10:00 PDT
Aug 29 2017 13:50:42 PDT 6
Aug 29 2017 13:51:42 PDT 6
Aug 29 2017 14:23:42 PDT 4
Aug 29 2017 14:24:42 PDT 4
Aug 30 2017 03:23:42 PDT 6
Aug 30 2017 03:24:42 PDT 6
Aug 30 2017 05:36:42 PDT 6
Aug 30 2017 06:25:42 PDT 6
Aug 30 2017 06:26:42 PDT 6
Aug 30 2017 07:24:42 PDT 6

h1iopsusex STATE_WORD:

Aug 28 2017 21:28:42 PDT 6
Aug 29 2017 17:19:42 PDT 6
Aug 29 2017 17:20:42 PDT 6
Aug 29 2017 18:43:42 PDT 6
Aug 29 2017 18:44:42 PDT 6
Aug 30 2017 00:00:42 PDT 4
Aug 30 2017 00:01:42 PDT 4
Aug 30 2017 00:44:42 PDT 4
Aug 30 2017 00:45:42 PDT 4
Aug 30 2017 05:20:42 PDT 6
Aug 30 2017 06:23:42 PDT 4
Aug 30 2017 06:24:42 PDT 4
Aug 30 2017 07:12:42 PDT 6
Aug 30 2017 07:13:42 PDT 6
Aug 30 2017 09:49:42 PDT 6
Aug 30 2017 09:50:42 PDT 6