Re: [Wg-test-framework] oseleta[01] apparent BIOS bug (or maybe hardware problem)

["Paul L. George" <pgeorge@xxxxxxxxxx>]

Ian,
Good news on the rimava0/1 power supply failures.  I decided to void the 
warranty and take the power supplies apart to see what failed and to see if 
they were identical component failures.  Both 5 Amp 250v input fuses were 
blown.  It looks like the power supplies were overloaded.

As per SuperMicro engineering the ATX power supplies that were used with the 
previous MSI motherboards were not sufficient for the Supermicro motherboards. 

The new motherboards require a modern up to date ATX power supply with a solid 
24 pin power connector.  They must adhere to the ATX spec exactly or the supply 
will overload.

I ordered new supplies that are designed to work with these motherboards.

I suspect the fact that they were in a hotter environment plus the fact that I 
had already plugged in the Network cables, pushed them over the edge.  The 
bench area we tested them on is very poorly (COLD) heated and very well 
ventilated.  They might have worked forever on that bench.  In the winter you 
have to ware a coat to work back there for any length of time.  Our hosting 
servers are the basic heat source.

We are going to reposition these server to above the ARM crate.  It is just too 
hard to work on these servers while laying in my belly on the floor.
-------------------------------------------

We updated the oseleta 0/1 BIOS to 2.3.0.  We power fail tested these servers 
and then rebooted 20+ times without error.

We will try to get them back into the rack by Monday or sooner.  We will check 
the BIOS settings to make sure all the settings are correct after the update.

Sent from my iPhone
Paul l. George
508-450-9332

PLG Enterprises, Inc.
42 East Main Street
Westborough, MA 01581


> On Apr 9, 2015, at 10:30 AM, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> wrote:
> 
> Paul L. George writes ("Re: oseleta[01] apparent BIOS bug (or maybe hardware 
> problem)"):
>> Can I load anything I want on these systems while I have them on the bench?
> 
> Yes, go ahead.
> 
> Ian.

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