On Wed, Jun 22, 2011 at 12:37 PM, Todd And Margo Chester <
[email protected]> wrote:

> On 06/21/2011 05:59 AM, Andrew Z wrote:
>
>> your thought about rising cpu temp is an interesting one. Ill start
>> monitoring it .
>>
>
> If you decide to "Blow Out" the dust from your CPU fan/heatsink,
> a typical cause of loud CPU fans, remember to hold the fan
> and not let it spin freely.   This will protect your fan's pwm circuitry
> when your fan switches from motor mode to generator mode.
> (Don't ask how I know that one.)
>
> Also, I use a front panel (fits in a CD-ROM slot), powered USB
> hub from SIIG.  Saves me a lot of heart ache when things draw
> too much power. But, be careful, the ground of the powered
> hub must be hard grounded to your case, not just the power
> supply's ground. It you are not hard grounded to the case, Linux
> will reboot if you have a static charge on your hand and you
> insert your stick into the hub.  (Okay, I "may" have rebooted a
> production level server three times before I figured that one out.).
>
> -T
>

- Show quoted text -
Update:
Good news and bad news - i recompiled current kernel and marked the USB as
modules. In my earlier (separate) post i was cautiously excited that the
damn thing is not hanging anymore. Oh well, last night "it did it again"
twice within 15 minutes.
this time i got different errors then those i posted (here) earlier. I don't
have the exact err message "handy", but i was "familiar" with it from my
Centos5.5 times. IT was -110 and 64 - usb died and cant' recover, dead read
blah blah. Google suggested to add "irqpoll" to grub. That didn't help at
all.

to T&M
 Unfortunately i can't confirm your theory as for rising temperature - it
fluctuates around 40 - to 55C and doesn't seem to be corresponded to
usbmadness..

Next steps :
 well, i'll try to play with acpi and irgpoll parameters and see if i can
get it working this way....

//Mood:  Frustrated

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