If this is not the correct place to ask this question, please let me know.
First off, big thanks to Genoil on this work; I am using the latest version with great success and better hashing than before. Thanks again!
The issue I am having is related to what I believe to be ULPS. I have a 280x and a 270x in a machine and the 280x runs fine; however, the 270x is only running at a core clock of 150 Mhz and a memory clock of the same. I have disabled ULPS in the registry and Afterburner. When I reboot and attempt to run ethminer the system bluescreens (I cannot see this occur, but on reboot it says it in the dialog box from Windows). Then I attempt to use ethminer and it works fine, but again at 150 MHz for the 270x. Also, if it matters, I cannot see the BIOS any longer when the system boots (since I added the 270x). Also, the 270x is using a USB powered riser a 750w power supply, and a fresh install of the ATI drivers and Windows.
What am I doing wrong here and what could I do to attempt to fix it? Power Limit is set to Max, PCIe link state power management is disabled, enablecrossfireautolink is set to 0, and EnableULPS is disabled in the registry. Any ideas? Thanks for the help.
EDIT: So I solved my own issue. First, I disconnected the second card to boot into the BIOS and set the primary display to PCIe. This solved the problem of not being able to see the boot screen. Then, I booted into Safemode and ran Display Driver Uninstaller from guru3d.com. Rebooted a few times and then reinstalled the latest AMD drivers. After rebooting then I reinstalled MSI Afterburner, disabled UPLS, rebooted, and it just worked. I ran ethminer and now I am happyly hashing away at the correct clock speeds. Maybe some of this will help out others, but the bottom line, uninstall the drivers THEN install your new card(s) to start mining.