On 05/11/2013 08:48 AM, Len Ovens wrote:
On Sat, May 11, 2013 10:37 am, Clemens Ladisch wrote:
Len Ovens wrote:
This is the first time I have seen this warning:
"Due to the reduced length of the PCI EXPRESS bus connector and the
resulting lack of mechanical stability, we strongly advise against
transporting cards installed in a computer, unless its chassis or case
provides a dedicated support to keep the card securely in place in order
to avoid physical damage."
PCI cards might survive not being fastened with a screw, but I can
easily see how a x1 PCIe card would not.
(Are there any cases without screws? Is this just a warning against
transporting a naked motherboard?)
They are full height cards and the PCIe connector is close to the front.
Some of them have daughter boards/heatsinks on them. I am thinking they
are talking about some sort of restraining device for the back end of the
card as well. It would seem the the majority of the card weight is
unsupported even with the back bar screw installed. I have seen cases with
a support in this area (even in PCI days). Funny thing.. it was a rack
mount Proliant, not meant for travel.
I think they like to support cards well in servers because of the
potential for steady vibrations from fans working them loose over time.
So if it's possible for a PCIe card to work loose from a sudden shock
("NO, dear, I DO love you more than the computer!" CRASH!!), I suppose a
steady diet of vibrations from fans or loud music could happen ...
Possibly made worse by heavier cards with daughterboards or video cards
with their own fans ...
--
David
gnome@xxxxxxxxxxxxx
authenticity, honesty, community
http://dancingtreefrog.com
http://clanjones.org/david/
http://dancing-treefrog.deviantart.com/
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@xxxxxxxxxxxxxxxxxxxx
http://lists.linuxaudio.org/listinfo/linux-audio-user
