Subj : USB locking up
To   : Ky Moffet
From : Barry Martin
Date : Mon Sep 07 2020 17:19:00


Hi Ky!
 >
 > A while back we were talking about my system locking up when a USB
 > device was inserted and a couple of things to check.  Battled with
 > the Round TuIts, But Firsts, etc.  You had given a link which
 > suggested going in to the BIOS to disable the Marvell SATA ports and
 KM> I did? :)

Sure; remember when you had amnesia?!


 > Currently trying an option "ASMedia USB 3.0 Battery Charging
 > Support". Default is off (disabled); trying 'enabled' only because it
 > seems to be the only option having anything to do with USB other than
 > legacy and disabling.  Plus the power aspect seemed a 'maybe': no
 > surge of power when plugging in a thumbdrive but maybe this option
 > would act like a slow-blow fuse and let whatever is occasionally
 > locking the system settle down.
 KM> Might be letting it draw more power than spec.

That was more or less my consideration for trying.  Did try after
changing the setting; need to try again -- haven't needed to insert a 
thumbdrive or other USB device so forget.  (Could try now but if the 
system locks up sort of a pain to recover this message.)


 KM> Mine that has the defective southbridge circuit (that cooked
 KM> several capacitors) continues to be just fine, so long as I don't
 KM> plug in USB anything!!

Just like mine! Don't plug in a USB device and no lock ups! <g>
Considering/wondering if a USB add-on card would work?  By-pass the
touchy Southbridge circuitry.  USB add-on card plugs into PCI/PCie -- 
not sure what that gets controlled by.  ...Oh: "PCIe function comes
from the Southbridge microcontroller".  Well, that doesn't sound like a 
workaround.  OTOH might be worth a try: signal to a different path; a 
card I have the power seems to be supplied directly by the PSU as 
opposed to from the motherboard and possibly those bad capacitors.


 KM> Right now it's hosting the old original
 KM> PCLOS setup, which gets used as the #2 channel for summer
 KM> baseball ...

Better hurry: football season is starting!

 KM> ... so I can have two games going at once, since I haven't
 KM> figured out how to get the Dell with the updated PCLOS to speak
 KM> to a 2nd monitor. It has a vidcard and onboard video, tho not
 KM> sure both can be convinced to work at the same time.

Seems to 'depends'.  I've usually used a video card with capabilities of
running two monitors.  ...Seem to remember most motherboards I've worked
with here allow either the onboard video -or- run the daughtercard.

 
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