thing is, the 2.1 on that site comes bundled with a bunch of shit that you don't need. my link gives just 2.1, nothing else.

have you tried not running crossfire to make sure the problem is because of crossfire and not something else? I'd say take out all 7970 but one butyou have a water loop so it makes it complicated.

11.12 comes with 2.5 SDK (ok), or 2.6 SDK (slow and really bad), don't remember. I want to say 2.6. I use SDK interchangeably with whatever the opencl platform is called (ATI Stream, AMD APP, etc). If you can mine, you are using some sort of opencl platform (or what I call an SDK). Run GPU Caps Viewer to find out what version SDK you have installed, or if you use cgminer, there is some sort of argument you can run to show your sdk too. Regardless, you want 2.1 SDK. https://dl.dropbox.com/u/9768004/ATIStreamSDK_dev.msi is the installer for 2.1 SDK. If you are truly paranoid about "omg i dont know this guy, must be a virus", here is a virustotal. https://www.virustotal.com/file/aa448734c688092349510d75350cc006fea470a4ec2bfe6c56a3e7ac31d545fb/analysis/1339811371/

Someone said they were able to achieve 1.1 memory volts. Try searching the forums for who.

Not true. You can, and should, install 2.1 SDK for the 5850 to mine on, and 2.6 for the 7950. 2.1 is a completely separate OpenCL platform and installs in a completely seperate path from 2.4+. It's VLIW4 hardware (69xx) that is pretty much screwed if you want to use it with GCN hardware, since 2.4/2.5 is fastest with VLIW4, but is incompatible for GCN, and 2.6 is slow as molasses with VLIW4 but is required for GCN.

I'd rather not fix what isn't broken, unless you'd like to pay for my mining downtime.

*shrug* I use 11.12 and 12.1 for all my miners and none of them need dummy plugs.

Fans are fine.

pretty much. have personal experience with a mushkin chronos deluxe 256gb (tier 1 sandforce based). Had random lockups/dropouts of the SSD about 3-5 times per week and only completely powering off the SSD and repowering it would cause it to re-appear. I RMA'd it for an identical model and has been rock solid for a month, no problems at all.

quoting for truth. log123 has no clue what hes talking about

Just use x64 OS. Looks like you're using windows, thats fine. 11.12 or 12.1 driver, use 2.1 SDK too, its fastest with all 5xxx cards. 2.4/2.5 about 3% slower.

Looks like an s-video port.

So I got 2 of these from ebay http://www.gigabyte.com/products/product-page.aspx?pid=3354
They don't have voltage control, so they are stuck at 1.088v, but on the plus side, they clock relatively high (1015 and 1035). Unfortunately, one of the 5850's runs about 15C hotter than the other and won't clock as high as a result. From what I can tell, it is not bad contact between GPU and heatsink, but rather bad contact between heatpipes and the fins. I say this because the hot 5850's heatpipes are much hotter to the touch than the cooler 5850.

So... I imagine there is some sort of low melting point metal that joins the heatpipes to the cooling fins. Would it be dangerous to bake the heatsink in an oven in order to reflow the contact points? If not, what temperature should I bake it and and for how long? Also, I have some 60/40 "fine electrical rosin core solder". Would it be possible to use this somehow to increase the amount of contact between the heatpipes and the fins? I don't have any other materials readily available, but I can probably go to the home depot to get something if it would be better suited.

Why would you need to use a dummy plug? Drivers 11.7 and greater dont need dummy plug.

Running volts lower than recommended won't kill it. Worst case, you'll get artifacts/miner errors/crashes. I say keep going lower and lower until it crashes, and increase it back up til it crashes no more. Save power

Are you still selling?

Oh, micro ATX boards. Not really worth the money since you're paying a premium for just 1 slot. Have to get a power supply, cpu, ram... plus electricity not used for the video card costs money too. Just get a http://www.newegg.com/Product/Product.aspx?Item=N82E16813128553 for $80 which has 5 pci-e slots, or http://www.newegg.com/Product/Product.aspx?Item=N82E16813130620 has 6, but premium price tag of $120.

Also older CPU/ram/whatever has no bearing on the capability of GPU mining, as long as you have a means of connecting a proper mining card to it. You could even use a PCI to PCI-E bridge card on an old pentium 2 computer and plug in a video card to that, and it would mine fine, granted that the power supply is strong enough on 12v to supply whatever card you're using with enough power without faltering.

If you have extra money floating around and just want to "try" stuff though, then go for it. A micro ATX board will work fine.

I have never heard of a "mini motherboard rig". Could you please provide a link as to what you are describing? I'm pretty sure you're using the wrong words.

For me, ambient is whatever the temperature is outside Outside mining rigs ftw! Free air conditioning.

If you're going to use stock core voltage (1.17v looks pretty stock to me...), crank up the core speed to increase mh/j slightly and massively increase net throughput. If you're set on those core speeds though, start reducing voltages. Using an excessive amount of voltage for any core speed is just a big waste of electricity and money.