Any and all notebook modifications that I can make to my notebooks. You will read about my overclocking and modifying adventures.

Friday, August 7, 2009

Getting a 2x PCIe Port from a MiniPCIe Port for an External Graphics Card

While I was working on this, it came to my attention that a miniPCIe port actually has some reserved pins to be used as another PCIe lane. So it should be possible to get a 2x port from just one miniPCIe port.

Please read this before reading the rest of my post.
Also read the following PDF:
http://leotardi.no-ip.com/html/eeepc/download/pciexpress_mini_cem_10.pdf

Now that you're up to speed on things, here is what I have been able to find with a DMM:
http://i896.photobucket.com/albums/ac167/moral_HaZaRd/nowpins.jpg
The picture shows which pins I found were connected to GND.

There is a resistance between pins 49 and 47. There is no connection between pins 41 and 39. There is no connection between pins 33 and 31. There is a resistance between pins 25 and 23.

Next I will check the voltage between pins 49&47, pins 41&39, pins 33&31 and also pins 25&23 while my notebook is on.

1 comment:

  1. Hey buddy. Just wanted to say im the first follower :D. Also following the vidock stuff and i liked your post so looked here. Not bad what you're doing. I enjoy this stuff so keep it up!

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