Chris21010

Ali Man
CPU has got nothing to do with it since x99 CPU's don't have a built-in GPU, so using a d-GPU that's folding would definitely stutter at max load.
 
My PPD is fine, it's impossible to get all the same WU's that really give you a high PPD, that's why I used the term 'average'.

 
CPU has nearly just as much to do with it as your GPU. if you try and run 5 instances for FahCore21.exe on a quad core CPU your PC will be complete unresponsive. even on a 6 core CPU with proper affinity management 5 instances of FahCore21.exe will leave only 1 core for windows and all other apps. not to mention if you are running a 28 lane CPU your 5 GPU's will only be running in x8, x8, x4, x4, x4. meaning your PPD on 3 of your GPU's will be restricted due to poor bandwidth to your CPU.
 
if you didn't know F@H is not a GPU standalone application. it requires 1 physical CPU core per instance and good bandwidth for the data going to and from the CPU/GPU. and again for your PPD i was getting ~2.2 Million with my 4 1070's for over the 2 weeks i had them running, and that was with them not fully boosted due to poor thermals, 95C at times.
 

My 4790k is running @ 75% with all cards, however, the bandwidth for two of my cards has slightly dropped since they're on risers.
 
I downgraded from a 24-core x99 platform just because finding a decent mobo to run 4-cards was a pain in the ass. 

Removed

bcavnaugh
 
One Thread Per GPU will also work when HT is turned on.

HT ?

Cool GTX
Where are you posting your "Case issue" video and the above mentioned video when done?

i do not have a PC that can handle video editing until i finish the build, kinda a catch-22 there.
 

Cool GTX
HT ?

that is Hyper-Threading, a way intel makes 2 virtual cores for every single core on the chip. as for HT and F@H you should disable it. its just like gaming in that the extra overhead to make the extra virtual cores will actually hurt PPD, if you have a x8 or x16 pci-e lane GPU that is. in Ali man's particular use case with only a 4 core system and trying to run 5 GPU's on a bottle necked pci-e bus having HT enabled actually helps him. because with it that 5th FahCore21.exe instance doesn't have to fight for CPU time.

notfordman
Such a great looking build Chris!! The shot of the GPU stack is epic... She's a looker, not only that, is a performer. I don't think I would have the guts to go through the DVI mod. How much "fun" was the hardline bending? I am gathering still for my first try at the hard line tube. Very nice job on your build, I hope that's the last of the leaks for you.

as you have probably heard for others double the amount of tubing you purchase from how much is actually required. i did this and i used 3/4 of it. and i also want to redo nearly every bend because they are all off by fractions of an inch. though they look fine for most to me knowing they are off i want to fix them. but considering i am still at stage 2 of the 3 stage build process, with stage making it look perfect, i will let it slide for now so i can have a functional desktop again. also i like PETG, it was quite easy to work with imho.

The hyperthreading has some shared resources in each core which can cause contention in heavy workloads. It's probably better to have faster cores for folding as some units max out my 3.4ghz system while others don't.

Removed

interesting but old and outdated information pertaining to dual core CPU's if you have a newer generation 6+ core i7 hyper threading doesn't do anything for you. as FahCore21.exe is not a process that benefits from improved parallelization, its a very single threaded process. quad core CPU's are on the borderline if it helps or not so i would leave it on, just so windows and other processes have some breathing room if you are folding with more than 1 GPU. i guess i should have clarified that tiny tidbit of information. you do not always turn HT off for every use case, just if you have more than 4 physical cores on your CPU or if your machine is doing nothing but GPU folding.

How much rad space is that to cool those 5 cards?

Awesome build! One question though. How are those Corsair ML 140 fans working out for you? I know they are supposed to be very silent but how is the cooling and air flow?
 
I was thinking of getting a couple to replace some fans in my current rig. 

Ali Man
44-53C is a super big range, I'd say something is not right since they all are in parallel?

no they are not, EK made this block a simi parallel block. basically it starts with lower 2 in parallel and then it goes through the upper 3 in parallel, so its both series and parallel. plus if you look i have spaces and back plates for 3 of the cards and then 2 of them are right up against another card. so at this point i think i am fine as the hottest card is the middle most card and the coldest is the lowest.
 
as for the fans, they perform great. sounds are ok, but i tend to always run my fans on the louder side so i can not really speak to how "quiet" they are just that they are not as loud as my last case fans.
 
OH, and i forgot! it GLOWS!
 

 
just wish i bought the right sleeved cables and once i get pastel fluid it will really pop.

 
i do not know what happened last night but i literally had 8 finished projects which would not send. i rebooted and windows installed updates and then it worked so i'll blame windows for now.

Removed

That info is old now. You can only delay nonsecurity updates with the anniversary builds. Feature updates can be delayed almost indefinitely. Security updates are able to be delayed but not forever. Easiest option is a calendar entry for 2nd Tuesday of every month, 12noon pacific time, to download updates and then manually restart and login.