I've got three work units that failed because of an undefined BACKGROUND_PROFILE is there any way I can fix this? my computer was hung one morning, maybe these were due to this?

"C:\Users\Kyle\AppData\Local\Temp\OCLFFBA.tmp.cl", line 232: error: identifier
          "BACKGROUND_PROFILE" is undefined
          if (BACKGROUND_PROFILE == FAST_HERNQUIST)
              ^

1 error detected in the compilation of "C:\Users\Kyle\AppData\Local\Temp\OCLFFBA.tmp.cl".

Frontend phase failed compilation.

Honestly that sounds like a unit problem and you may want to talk about in the News section under the new work units.

okay so i got the drivers working, everything is golden and then the unit fails right as it hits 100%. I'm thinking BOINC version might be the issue now, but the cc_config.xml fix wont load properly and when i did update it, i let it run for a while but it never got any units to test if the 6970 would pass or fail either so i reverted back and I'm waiting for some questions to be answered. I'm guessing i use the default BOINC install folder (not the hidden program data folder microsoft has for all apps to store critical info in) but i put the file there and it didn't work. did i do anything wrong? if not i will uninstall boinc clean and reboot and try again, or if one of you wants to get on skype or something with me and yell at me like i'm a teenager looking at porn and not an A+ certified tech who should be able to figure this out themselves /sobs. I'm so rusty lol I need to focus on keeping up to date when i go away from tech for a while

Do you also use the cpu to crunch with on that 3 core, 3 gpu machine, 4gb ram machine? If so you could just be over taxing the whole rig and it is failing when it gets real busy right at the end of the units. I think this is more of a trial and error fix, as opposed to someone saying do this and it will fix it kind of a thing. It could be the old version of Boinc you are running and that should be an easy fix, just be sure to finish up any existing units, and get no new ones, as you will be going from a 6th generation version of Boinc to a 7th generation. That may or may not cause problems, but it could.

yea also running cpu units. that rig is supposed to have 8GB of ram (it did originally) and i have a ton of DDR3 i need to RMA as well, all gskill kits i had when bus OCing was still a thing but 1.5v. should be able to get them to send me a new consolidated kit for it all if i can find the second 4gb kit. ill try tinkering with it when i get the memory fixed, but for now it's running and it's crunching out units non stop like they don't exist. It's gonna get a bios update and an 8 core around christmas as well when i have the money, the board is an MSI 790FXA-GD70 and i can put 4 dual slot cards in it, or 5 if i convert two to single slot water cooling, but the budget for that would't be worth it because for the price of the blocks and new radiator i could also buy another board CPU and PSU and drop my x3 into that rig, and i already have a case, then just keep adding GPUs lol. YAY SCALABILITY!

yea also running cpu units. that rig is supposed to have 8GB of ram (it did originally) and i have a ton of DDR3 i need to RMA as well, all gskill kits i had when bus OCing was still a thing but 1.5v. should be able to get them to send me a new consolidated kit for it all if i can find the second 4gb kit. ill try tinkering with it when i get the memory fixed, but for now it's running and it's crunching out units non stop like they don't exist. It's gonna get a bios update and an 8 core around christmas as well when i have the money, the board is an MSI 790FXA-GD70 and i can put 4 dual slot cards in it, or 5 if i convert two to single slot water cooling, but the budget for that would't be worth it because for the price of the blocks and new radiator i could also buy another board CPU and PSU and drop my x3 into that rig, and i already have a case, then just keep adding GPUs lol. YAY SCALABILITY!

That sounds like a plan! What size power supplies are you using to power 4 or even 5 gpu's in a single machine?

the 4x capacity rig (x3 720 black) rig is using an old topower 900w unit that came highly recommended a while back on jonnyguru and hardocp. it's at it's card capacity currently from the given adapters but i havent checked its total draw yet. my main rig thats getting all the tahiti love is on an Enermax Revolution 85+ 1050w and is one of the best power supplies i have ever bought for sure. very happy with the results on it and once i get all 3 cards in it I'm looking at ramping up some clock speeds. my cards are running 900MHz but the one my friend is selling me did 1080 at stock voltage under load apparently, and i wanna see how much wiggle room my two have now that they're getting up there in age a little. one of em might have a bad chip of VRAM on it as the system gives some occasional artifacts in games but its intermittent and crossed an OS install and a system ram/boot drive replacement, and i've been unable to isolate it to a single card either and figured if the card's gonna go, its gonna go. It's still under warranty from august 2012 for 3 years total so stressing it into a burnout now would be ideal, rather than down the line when they can't fix it as easily or something else unpleasant.

the 4x capacity rig (x3 720 black) rig is using an old topower 900w unit that came highly recommended a while back on jonnyguru and hardocp. it's at it's card capacity currently from the given adapters but i havent checked its total draw yet. my main rig thats getting all the tahiti love is on an Enermax Revolution 85+ 1050w and is one of the best power supplies i have ever bought for sure. very happy with the results on it and once i get all 3 cards in it I'm looking at ramping up some clock speeds. my cards are running 900MHz but the one my friend is selling me did 1080 at stock voltage under load apparently, and i wanna see how much wiggle room my two have now that they're getting up there in age a little. one of em might have a bad chip of VRAM on it as the system gives some occasional artifacts in games but its intermittent and crossed an OS install and a system ram/boot drive replacement, and i've been unable to isolate it to a single card either and figured if the card's gonna go, its gonna go. It's still under warranty from august 2012 for 3 years total so stressing it into a burnout now would be ideal, rather than down the line when they can't fix it as easily or something else unpleasant.

WUF, I have not crossed the 850 watt level yet, but the most I have is 2 cards in one machine and a single card in the rest of them. All of my machines with gpu's in them have a 750 or 850 watt gpu, but the non gpu machines, I do still have a few, use 600 watt ones. I tend to buy the ones on sale rather then the higher quality ones, and knock on wood, have never had a 750 or 850 blow yet. I have had several oem, 450 watt and even a 585 watt one pop and have smoke come rolling out of them before though! IT STINKS!!!!