H8QGL-iF

750W will handle 4 6128s with a mild overclock. Just about anything will need a bigger CPUs. For 4 CPUs and 3 GPU, I would go with a 1500w PSU.
 
It will be pleasure to have you on board!

The number is 33.

4P + GPUs are relatively uncharted territory so you'd definitely be one of the pioneers.
Also, CPU performance penalty in such configuration is yet to be determined.

musky did initial evaluation of Linux+WINE on w/recent WUs/FahCores and it worked fine
so I'm not expecting major obstacles there.

I recall someone having issues with dual PSU config -- board wouldn't pull current from secondary
PSU even though it was being started correctly (though perhaps dedicating whole PSU for GPUs
isn't a bad idea?). That's another variable to keep an eye on.
 
Those HEs are $320+ shipping vs $120. Would definitly be cheaper to go AX1200 if necessary. :(
I was thinking (or hoping) that 750w was good for no OC on the chips and that the other 750 would do 3 GPUs. EOC PSU calculator seems to think that 3 580s is a hair over 600w and the same goes for 4 6128s?
THanks for the welcome. I'm only at ~60K ppd right now but every little bit helps I suppose :).
 
I'm failing to find this in the search, unless you are referring to the possibility of you selling your chips in the future?
 
Ah I found it through google. Way out of my price range though. I dont want to spend over $500 on cpus.
 
krips said:
Ah I found it through google. Way out of my price range though. I dont want to spend over $500 on cpus.
Click to expand...

Put them up last night. Not too far off what you where thinking. Much better deal than what is on crapBay.
 
will be using a 4p 6386se with H8QGL-IF-O and two GTX Titans. Planning on using a 1200W power supply. Will it be enough?
 
Probably not -- need about 1400W. 1500W to be comfy.
 
I ran 4x 6172 at stock with a 650w for over a year with no problems...
 
It all depends on what you have planned, in particular what sort of target you have in mind for the CPUs. Everything at stock (or really just CPUs at stock), 1200 will be more than enough. If your target for the CPUs is higher, 1200 may not be enough for just them.

I'd also consider whether running the titans on this board is the best option. If it's your only option, then so be it. But it's probably not the most efficient use of resources.
 
Hold off on the GPU orders, the Linux Alpha for GPU folding is on hold for the moment and there is really no way of telling you when it will be done, at the moment the focus is on the windows GPU core.
 
Stock clock Titans are over 250w gaming, folding will probably be higher.

ie - 1200w won't do it reliably.

You are probably best off finding the cheapest 2 slot mobo and CPU, and putting the titans in there with a 750w PSU. PPD will be higher, and cost shouldn't change a whole lot.

And you will be able to do other things with the Titan rig, other than just fold. Normal Windows only sees 2 CPU's. The GL rig needs to run Linux, the Titan needs Windows.
 
Other note. At this time Titan's are about $1000. $2000 can make way more PPD folding BigAdv than two Titans can. Getting some bad ass ES 16-cores (6282 or faster) in your GL board will do more for less.

The GPU cards that are the best $/PPD are the AMD cards. The $400 cards = the Titan.
 
Smells like he's after "most PPD from single machine" title.
 
tear said:
Smells like he's after "most PPD from single machine" title.
Click to expand...

Space could just be a issue.

Or if you are like me a student who will be moving around quite a bit a single rig is so much easier to move.
 
Qinsp said:
Stock clock Titans are over 250w gaming, folding will probably be higher.

ie - 1200w won't do it reliably.

You are probably best off finding the cheapest 2 slot mobo and CPU, and putting the titans in there with a 750w PSU. PPD will be higher, and cost shouldn't change a whole lot.

And you will be able to do other things with the Titan rig, other than just fold. Normal Windows only sees 2 CPU's. The GL rig needs to run Linux, the Titan needs Windows.
Click to expand...

Sigh...

Folding uses considerably less power than gaming. FAH only uses the shaders, gaming uses everything. Titans currently use 150-175w folding.

There is an internal test of a Linux GPU client underway now. It may or may not be released. GPU folding in Linux using WINE does work as an alternative. It's slightly less efficient, but NVidia under linux is slightly more efficient, so it's pretty much a wash.
 
DOH!!! My bad.

Guess it depends on the card and the game.

I haven't run a Titan. The 250w is from published game testing.

I could game on GTX460's overclocked (Starcraft II), but they crashed when folding from heat. I assumed heat came from watts. This was years ago though.
 
Folding stresses the shaders considerably harder than gaming. So it's not uncommon for overclocks that are stable when gaming to fail when folding. But, the card is still using less power, as the other parts of the GPU (rasterizers, etc.) are not being stressed at all.
 
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