Step 1: Take down that wall!
Seriously. I did this, expecting i'd have to jump a pin on my GPU to make it detect. But nope. It works just fine! The GPU autodetects the bandwidth of the slot and runs at 1x speeds.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2Fs7hk0cy.jpg&t=663&c=2q8FO1RtQ0SOsQ)
Works just fine.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FVk15EG9.jpg&t=663&c=5ILHz6RrBIfQVA)
No need for these risers anymore!
By the way, if anyone wants to know. The method I used to take it out is by putting a cut-out piece of a PCI connector in the slot to protect the pins, and then using a hot soldering iron to melt off the wall. Took about 5 minutes.
Now, I have two 7870's running on a $30 Pentium 4 board.
![Tongue](https://bitcointalk.org/Smileys/default/tongue.gif)
Light mining rig base. 380 kh/s stable with mining scrypt.