I have already tested my old EVGA GTX580 as a dedicated Physx in this Titan 4 way SLI system but I would really like to put a 06G-P4-3793-KR Titan as my dedicated PhysX card.  However before I make the 1k+ expenditure I would like to know if anybody knows of any issues with running 4 Titans in Quad SLI with 5^th one that is the black version for dedicated Physx.
 
Below is my current PCIe layout.
 
x79 BLACK>Slot1 = EVGA GTX Titan SC Signature 06G-P4-2793-KR (1 of 4)
x79 BLACK>Slot2 = EVGA GTX Titan SC Signature 06G-P4-2793-KR (2 of 4)
x79 BLACK>Slot3 = PCE64P-N03 Ver 002 (PCI-E Express 1x to 16x Riser Card)
                     PCE64P-N03>Slot1 = empty (((thinking about Titan black Physx here)))
x79 BLACK>Slot4 = EVGA GTX Titan SC Signature 06G-P4-2793-KR (3 of 4)
x79 BLACK>Slot5 = PCE4PCE-P01 Ver 002 (PCI-e express 4port 1X multiplier)
                     PCE4PCE-P01>Slot1 = Thunderbolt Killer E2100
                     PCE4PCE-P01>Slot2 = Mini PCI-E Wireless Adapter to Crystal HD H.264 decoder
                     PCE4PCE-P01>Slot3 = empty
                     PCE4PCE-P01>Slot4 = PEX2PCI4 (StarTech PCI Express to 4 Slot PCI Expansion)
                           PEX2PCI4>Slot1 = empty
                           PEX2PCI4>Slot2 = HT|OMEGA Claro Halo
                           PEX2PCI4>slot3 = empty
                           PEX2PCI4>slot4 = Halo XT module
x79 BLACK>Slot6 = EVGA GTX Titan SC Signature 06G-P4-2793-KR (4 of 4)

Overkill for Sure!!!

xanthus1
I have already tested my old EVGA GTX580 as a dedicated Physx in this Titan 4 way SLI system but I would really like to put a 06G-P4-3793-KR Titan as my dedicated PhysX card.  However before I make the 1k+ expenditure I would like to know if anybody knows of any issues with running 4 Titans in Quad SLI with 5^th one that is the black version for dedicated Physx.
 
Below is my current PCIe layout.
 
x79 BLACK>Slot1 = EVGA GTX Titan SC Signature 06G-P4-2793-KR (1 of 4)
x79 BLACK>Slot2 = EVGA GTX Titan SC Signature 06G-P4-2793-KR (2 of 4)
x79 BLACK>Slot3 = PCE64P-N03 Ver 002 (PCI-E Express 1x to 16x Riser Card)
                     PCE64P-N03>Slot1 = empty (((thinking about Titan black Physx here)))
x79 BLACK>Slot4 = EVGA GTX Titan SC Signature 06G-P4-2793-KR (3 of 4)
x79 BLACK>Slot5 = PCE4PCE-P01 Ver 002 (PCI-e express 4port 1X multiplier)
                     PCE4PCE-P01>Slot1 = Thunderbolt Killer E2100
                     PCE4PCE-P01>Slot2 = Mini PCI-E Wireless Adapter to Crystal HD H.264 decoder
                     PCE4PCE-P01>Slot3 = empty
                     PCE4PCE-P01>Slot4 = PEX2PCI4 (StarTech PCI Express to 4 Slot PCI Expansion)
                           PEX2PCI4>Slot1 = empty
                           PEX2PCI4>Slot2 = HT|OMEGA Claro Halo
                           PEX2PCI4>slot3 = empty
                           PEX2PCI4>slot4 = Halo XT module
x79 BLACK>Slot6 = EVGA GTX Titan SC Signature 06G-P4-2793-KR (4 of 4)

 Interesting, Could You Show some Pics of Your System?

HeavyHemi

ty_ger07
Over-kill? Yes.

But, if you must 'waste' your money...

No, the dedicated physx card cannot be the same model as the cards which are in sli when sli is enabled. When SLI is enabled, the dedicated Physx card must be a different model. I am not sure if Titan VS Titan Black is enough of a difference on the driver level for Physd to work. It would be a very risky investment.

ty_ger07
Over-kill? Yes.

But, if you must 'waste' your money...

No, the dedicated physx card cannot be the same model as the cards which are in sli when sli is enabled. When SLI is enabled, the dedicated Physx card must be a different model. I am not sure if Titan VS Titan Black is enough of a difference on the driver level for Physd to work. It would be a very risky investment.

Your PhysX GPU does not need to be a different model GPU. You can leave the SLI array intact and dedicate a GPU to PhysX. Of course, this will then put you at 3-Way SLI and to return to 4-way, you'd need to change PhysX from dedicated to auto or set to use one (not dedicated).  I ran the Batman and Mafia II games this way when I was running 3-way GTX 470's. I got better performance running 2-way with the third dedicated to PhysX.

You are missing the point. He wants to do 4-way SLI with a model of Titans + another model of Titan as Physx. The Physx card has to be significantly different to work as a dedicated physx card when going beyond the max supported SLI arrangement. For instance, it is not possible to do 4-way SLI GTX 480 plus a 5th GTX 480 for physics. The 5th card must be significantly different according to NVIDIA's Physx and SLI documentation; otherwise it will not be detected as a valid SLI arrangement. 2, 3, or 4 cards is fine; 5th card is not fine unless a different model.

ty_ger07

HeavyHemi

ty_ger07
Over-kill? Yes.

But, if you must 'waste' your money...

No, the dedicated physx card cannot be the same model as the cards which are in sli when sli is enabled. When SLI is enabled, the dedicated Physx card must be a different model. I am not sure if Titan VS Titan Black is enough of a difference on the driver level for Physd to work. It would be a very risky investment.

ty_ger07
Over-kill? Yes.

But, if you must 'waste' your money...

No, the dedicated physx card cannot be the same model as the cards which are in sli when sli is enabled. When SLI is enabled, the dedicated Physx card must be a different model. I am not sure if Titan VS Titan Black is enough of a difference on the driver level for Physd to work. It would be a very risky investment.

Your PhysX GPU does not need to be a different model GPU. You can leave the SLI array intact and dedicate a GPU to PhysX. Of course, this will then put you at 3-Way SLI and to return to 4-way, you'd need to change PhysX from dedicated to auto or set to use one (not dedicated).  I ran the Batman and Mafia II games this way when I was running 3-way GTX 470's. I got better performance running 2-way with the third dedicated to PhysX.

You are missing the point. He wants to do 4-way SLI with a model of Titans + another model of Titan as Physx. The Physx card has to be significantly different to work as a dedicated physx card when going beyond the max supported SLI arrangement. For instance, it is not possible to do 4-way SLI GTX 480 plus a 5th GTX 480 for physics. The 5th card must be significantly different according to NVIDIA's Physx and SLI documentation; otherwise it will not be detected as a valid SLI arrangement. 2, 3, or 4 cards is fine; 5th card is not fine unless a different model.

Er no, I'm not missing the point. If you have documentation that says you can't run 4- Way SLI with another of the same model GPU for a dedicated PhysX. Lets see it. I know  you can run 2-way, 3-way and 4-way and dedicate a GPU to PhysX while leaving the bridge attached. Secondarily your post stated you could not run multiple GPU's in SLI and dedicate one to PhysX while leaving the array intact. Yes you can.  "No, the dedicated physx card cannot be the same model as the cards which are in sli when sli is enabled. When SLI is enabled, the dedicated Physx card must be a different model. I am not sure if Titan VS Titan Black is enough of a difference on the driver level for Physd to work. It would be a very risky investment."
This is false and what I specifically addressed.  The only thing not resolved is running 4-way with the same model GPU as a PhysX GPU. I can't find anywhere that won't work. Perhaps you're thinking of several years back when your GPU running PhysX did need to be a different model when running SLI.

houkom
In all honesty, that is going to be completely overkill for the amount of power that PhysX requires. The fact that you already have a 580 in there is more than enough. PhysX isnt truly that taxing on your type of system... Most games dont have 4 way SLI support so the 4th Titan could be set to do the PhysX workload without much of a hit. I feel as though that your current set up is more than adequate but to each their own. Who knows, maybe you're not ONLY gaming with this machine and are rendering too. I don't have a direct answer to your actual question, but I'd hope that if you're just looking to throw away money, then wait a few months and drop some on the 8XX series.

From what Ive read I will have to agree. It states 4th card in sli setup shows no improvement. So using 4th card for sli would be fine. 5th card not needed !     (send to me please) LOL

HeavyHemi, thank you for your answer my question and not telling me it is overkill.  I am a type “A” personality who always takes things to 11 (“Spinal Tap” reference).  I am going to try the black and see if it works worst case I will put it into my cheesy third computer.

Well I did it, I put this fifth Titan in.  Thanks for the advice HeavyHemi.  Now I have 4 of a kind in SLI and one black sheep in dedicated Physx.  Something that is very cool Metro 2033 is now playable turned up to max setting on 5760 x 1080 x 120hz x 3d.  Before even with quad SLI Titan frame rate was too low.  Now it runs awesome, but can’t wait for the boardlands prequel with dedicated Physx. 

My God, 5x Titan Black Superclocked. 
 

bcavnaugh,
 
Here is pictures of my rig.  I would have posted them sooner but EVGA has done something odd with the forum it looks like you can only post pictures via a URL.  No local storage for EVGA forum.
 

 
Here are the pictures I hope everyone can see them.
 
 

Take the s off of https and use only http and your image will show up.
 
Where is the 5th Card?

The 5th card is on the outside of the main case.  I have labeled it in the picture.  It does require a PCIe bus extender as the 4 main cards have a GPU terminal semi-parallel water block which would not allow for any room.
 

pretty cool.  I thought i was looking at some robot or mech in construction. 
 
Again,  wicked setup, wicked pictures.