Changes between Version 113 and Version 114 of Production_Work_Log

Timestamp:

May 19, 2014, 5:24:07 PM (12 years ago)

Author:

huntley

Comment:

--

Production_Work_Log

@@ -2 +2 @@
 
 = 2014 Production Node Work =
+
+== May 19 (Haydn) ==
+ - ipp042 - wouldn't respond to reset or power cycling.  Motherboard POST code stuck at FF.  Replaced the motherboard and now it works.
+ - ippc05 - had a failing 500G HD. Replaced it with a tested, known good one.
+ - ipp036 - wouldn't respond to reset or power cycling.  Motherboard POST code stuck at FF.  Replaced the motherboard and now it works.  When opening it, I found an unusually thick and messy layer of two kinds of heat conduction paste on the CPU's, and two white plastic screws stuck to the bottom of the motherboard, where they were squeezed between the motherboard and the case.  The improperly installed CPU's or the plastic screws out of place, flexing the motherboard could have affected its life.
 
 == May 5 (Haydn) ==
  - ipp051 - wouldn't respond to power cycling.  Motherboard POST code stuck at FF.  In all of the other cases where we've seen this, replacing the motherboard was the only solution which worked, so I did that without a lot of other testing.
- - ippc16 - was beeping and had the red warning light on the front panel lit.  Opened it up, plugged it into power, and it was still beeping.  Checked that all of the fans were spinning (they were).  Checked that all of the fan connectors and connectors going to the front panel with the beeper were tight.  Some were a little loose.  Somewhere in the process the beeping stopped.  Re-installed it in the rack and it continued to be quiet.
+ - ippc16 - was beeping and had the red warning light on the front panel lit.  Opened it up, plugged it into power, and it was still beeping.  Checked that all of the fans were spinning (they were).  Checked that all of the fan connectors and connectors going to the front panel with the beeper were tight.  Some were a little loose.  Somewhere in the process the beeping stopped.  Re-installed it in the rack and it continued to be quiet, however it started beeping again as I was leaving the building.  There is a button on the front panel to silence the beeping and the MRTC-B operators now know to press it to fix this problem.
 
 == April 30 (Haydn) ==