Re: Schrödinger's hash

On 6/1/26 14:55, Charles Curley wrote:
> I did reseat all the data and power cables for the hard drives, the SSD
> system drive and the CD, etc. drive. 


Good.


> I doubt I've had a brown-out, as
> the computer in question is on a UPS which has plenty of spare battery.


Check the voltage at the UPS input with a good voltmeter.  In the USA, 
voltage should be 120 VAC.  National Electrical Code tolerance is +/- 5%.


A good UPS should be able to accept dirty out-of-spec input and produce 
clean, tight output.


Do not plug laser printers, photo copiers, or any other heavy loads into 
the computer UPS.  Those machines draw significant current in surges and 
can clip the output of UPS's, causing the voltage to sag, lights to 
flicker, and electronics to malfunction.


> As for the power supply test, not having a power supply tester, I have
> not done that.


Buy one.  It will save your sanity.


Related -- I bought good cases, power supplies, and fans when I built my 
most recent servers:

https://www.fractal-design.com/products/cases/define/define-r5/black/

https://www.fractal-design.com/products/power-supplies/ion/ion-2-platinum-660w/black/

https://www.fractal-design.com/products/fans/dynamic/dynamic-gp-14/white/


David