I was about to reply to the "new Rig" post, but I decided to open a new thread, since we're dealing with GTX1070 and relative performances/consumption.
I begin with quoting Al on that topic.

Sounds exciting, I hope your install with the 1070s goes smoothly.

It did not ! :-(

Hello Al, glad to see you're still searching for the optimal solution like I am.
Well...the 1070 are in place now, but it was a real fight between me and...some PCI-E logic I don't understand:

The GTX1070 from Palit :





First of all, let me give you a piece advice : try MSI Afterburner beta 4...it work extremely well at least with up to three different type of GTX...and if you have more than one GPU of the same kind you can choose to tweak them separately or with the same settings in one shot.

Anyway, back to topic... I wanted to see if could ADD the two GTX1070 to the two slot left, slot 4 and 6 ( reaching 7 GPUs, WOW !),but it did not went well...apparently, slot 4 is electrically/logically "coupled" to slot 3 and 6 is coupled to slot 5, so probably they don't have a separate logic and paths, they're just there to allow different GPUs width placement ( methink)..GPUS in slot 4 and 6, while 1/3/5/7/2 are filled in simply result in windows not detecting them.
So, the initial situation was :

Slot 1 : 780ti
Slot 3 : 660ti
Slot 5 : 660ti
Slot 7 : 660ti
Slot 2 : 660

I pulled out the 660 from slot 2 and replaced with 1070 : it worked.

Then I decided to pull out the 660ti from slot 7 and replace it with the 1070 : no joy, it was not seen by windows.
From now on, for about an hour, I started to switch the slot in which the card were plugged in, trying to find the right combination ( if there were one ).

At a certain point, with the host turned off the situation was :

Slot 1 : 1070
Slot 3 : 1070
Slot 5 : 780ti
Slot 7 : 660ti
Slot 2 : 660ti

and the PC did not even turned on !! I discovered 1 minute after that I inadvertitely had insert the riser backward....I was lucky anyway that I did not burned anything... :-D

So, with a logic I don't understand, everythig works only if the configuration is :

Slot 1 : 780ti
Slot 3 : 1070
Slot 5 : 1070
Slot 7 : 660ti
Slot 2 : 660ti

The 780ti MUST be always on the first slot otherwise bizarre things happen...

I believe it is too early to report about the performances, and I certainly will, for now all I can tell is that replacing a GTX660 and a GTX660ti with two 1070 is having the effect of saving roughly about 100W of power :

Before :


After :


I will keep u informed, as usual. ;-)

Ciao
A.

Andrea, nice setup, glad you seem to have gotten it together and working properly. Thanks for the suggestion about using Afterburner, believe it or not that is what one of the ppl at EVGA said to use instead of Their software, on Their card. Inspires confidence, eh? ;-) Well, it will be interesting to see how this works out for you, and I hope I don't run into as many PCI-E bus issues as you did, I think that would drive me a little nuts. So much for plug and play, eh? More like plug and Pray! lol

Does your motherboard have a VGA connector on it, and are you using it to provide video for your system, or are you running the display off of one of your video cards? In a perfect world, I'd like to run my display off of the motherboard video, and let the GPU's concentrate on crunching, but I haven't gotten that to work on my 48 core setup, I am still running it off of the 1080. Not sure if it really effects anything, but I'd like to eventually get that figured out.

What's the summary of the system now, in terms of OS version, driver version, and BOINC/Lunatics version you decided to go with? Any hiccups since you have gotten it all together and booting properly, no crashes while crunching SETI? You've done a great amount of work in a very short time, and should feel proud of what you've accomplished! WTG girl! :-)

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https://boinc.berkeley.edu/trac/wiki/ProjectOptions

might be some interesting information about a "config.xml" file in the projects directory.

<gpu_multiplier> GM </gpu_multiplier>

this might be a performance option ? or what is it ?

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https://boinc.berkeley.edu/trac/wiki/ProjectOptions

might be some interesting information about a "config.xml" file in the projects directory.

That page is about project *server* configuration.

The file config.xml is found on BOINC servers: the file we can use on our home computers is cc_config.xml