Why do video cards have a trimmed PCIE pin

Derek12 · Nov 15, 2014

Like this? Just curious

When I first saw that I was ready to dump that video card until I noticed the new one has it too.

Thank you.

OneMoar · Nov 15, 2014

http://en.wikipedia.org/wiki/PCI_Express
read the Pinout section

DayKnight · Nov 15, 2014

Derek12 said:
Like this? Just curious

View attachment 60372

When I first saw that I was ready to dump that video card until I noticed the new one has it too.

Thank you.

https://en.wikipedia.org/wiki/PCI_Express#Pinout

PRSNT1# and PRSNT2# pins must be slightly shorter than the rest, to ensure that a hot-plugged card is fully inserted.

Derek12 · Nov 15, 2014

Thank you, didn't noticed that Wiki article in my quick Googling.

So are video cards hot-pluggable? This one (HD5450) has tracks coming from those "sense pins". I always thought they weren't.

BTW in this card only two of those PRSNT pins are shorter, specifically 1A and 81B while that table says there are 5 pins

Law-II · Nov 15, 2014

Hi

That is a PRSNT2# pin [these must be slightly shorter than the rest so that the vga card can sense it is fully inserted into the PCIe slot]

atb

Law-II

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Why do video cards have a trimmed PCIE pin

Derek12

OneMoar

There is Always Moar

DayKnight

Derek12

Law-II