So I had my 5830x2 set-up running smoothly for about 5 months, OC'd and everything at about 520-560mhash and running from guiminer. I never had any trouble overclocking or going between different clocks until last night when i switch my hdd out of my 5830 rig. However now, both cards are ranging between 50mhash and 200mhash as a rare high. At one point guiminer told me both were getting 30,000 ghash, i wish
I replaced the hdd i had that was running win7 with another hdd that was running ubuntu natty narwhal lts. I did the hdd switch because i've been trying to set up a second rig but ubuntu and the hardware from my backup rig were having a bit of a disagreement.
When i had the ubuntu hdd booted up in my 5830x2 machine everything seemed like it was working fine and i was trying to set up a miner that would actually work on it. I tired the how-to guide here to no avail then tried other methods, ultimately trying out BAMT which seemed like it was working up until it didnt work. BAMT was the only place that i edited anything regarding my gpu; in the config folder i uncommented the lines that set each gpu clock at the very bottom and reset the numbers so that i'd get the same mining performance as before. After some frustration and a few hours of not being able to properly start mining with ubuntu, i switched the hdd back to the original win 7. Thats when i first notied that my cards were not reaching their previous clockrate.
I tried a few things already such as rebooting with just the win7 hdd in, restarting guiminer, changing flags, a whole lot of afterburner tweaking and thats about it. When i changed the clock on afterburner it did show that mhash would drop and raise with the bar, but it each gpu is capped at 160-200ish mhash even when im clocking at 890mhz.
Sorry for a wall of text but thanks ahead of time if you read through it.
