Some critical updates for those technically minded individuals (all the members of this forum)
as far as i know, this is the first fully functional 4-way pascal rig where games and apps are actually using all 4 GPU's in SLi.
Current build:
Supermicro X10DRG-Q
2x E5-2699 v4 (44 cores/ 88HT) (3.7ghz turbo)
512GB ram DDR4 2400mhz ecc reg
(QUAD SLI) 4 Titan X PASCAL
2x Samsung NVMe 961 Pro pcie 3.0 (os drives)
10x Samsung 850 Pro SSD RAID (apps drive)
LG 31MU97z 4096x2160 true 4K rev C
modded P5 case, Noctua heatsinks
Digital power supply 1650w
Windows Server 2012 R2 Data Center, Ubuntu 15
I have functional quad sli using the new Titan x pascal cards.
The cards came with a back plate which acted as a thermal insulator, removed the back plate and heat dissipation is so much better. If you buy these cards remove the back plate immediately. The back plate is paper this aluminum with a plastic layer on the inside. Obviously it was just for looks at the price of cooking the cards
One can remove the back plate without making any changes to the front of the card
Detailed pictures and explanation to follow next:
I am only using the game benchmark as way of using a reproducible standard
So I'm using the built in 'benchmark c5l1" and "benchmark c5l2"
So here is the setup
Driver 372.54
Test material apples to apples
Painkiller Black
Havok physics enhanced mod multi threaded
FXAA - more than that is wasted at that resolution
Visual enhancement mods
Resolution - 4096x2160 (true 4k)
Running full eye candy Sli 4-GPU AFR 2 custom profile
From the bios shot you can see the layout I selected, please notice the what cpu goes to what pcie slot
Here is the view with the glass side off
Here are the bridge choices
Here are some of my selected manual bridge builds, these picture is only an example, not my final config
Important - my motherboard type -the x10drg-q is the only board type in the world with reverse order pcie sockets. The primary video card is the first socket on the bottom of the board, NOT the closest socket to the cpu(s) like all the other motherboards. Yes, it comes from supermicro that way.
this means that my sli pattern is completely different not just upside down since the order is reversed, opposite and upside down.
So
This is the score I can get with default brige - 303Fps is not bad at 4096x2160 with the fullest eye candy, havok mod, custom profile is the same for all tests running benchmark c5l1
This is with the higher v2 bridge (2 year old bridge) a 50fps increase, not bad
Same bridge installed upside down so that primary card has both connections, score only went up a few fps, but look at the minimum frame count go up
this is also because my primary video card with the monitor is the lowest one on my type of motherboard- which makes the primary card the coldest.
And various manual sli ribbon configs with all 8 sockets connected
Manual build layout running the more intensive benchmark c5l2 with greater physics
This is a custom sli bridge of ribbons layout using the metal connectors from three destroyed 4-way evga v2 bridgesThe metal connectors have grab pins on both sides for the card sli plug this makes the "upgrade to a better bridge.." exclamation mark go away
390FPS average, peak 1024FPS (game engine limit)
the "benchmark c5l2" is heavy on explosions and object trajectories, particles etc, so its a good test, as well of course as carrying the heavy mods for havoc and visual enhancement
...and honestly, --with full eye candy and physics, HD mods, almost 400 FPS-- at 4096x2160, isn't all that bad...
If I take the default painkiller black build and the custom profile without the additional eye candy/mods I get over 500fps
I have other games I have running in excess of 200fps at 4096x2160
(**but right now I'm having a tough time getting "No Man's Sky" running smoothly past 40-60 fps at 4096x2160 - the gane just doesn't run well at all, something just plain feels wrong with it, but that's another story.)
So, just on bridge config at 4096x2160, I went from 302FPS average, to 390FPS average.
here is an example of "any" game:
Thx
J