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Dual Procs + Dual Video Cards

post #1 of 3
Thread Starter 
Just thinking ahead to the near future when the Xeon e5 chips are released. Going to be building a workstation with two of them plus two (likely) NVidia 680GTX cards.

All of the guides and tutorials I've seen are relating to a single proc and maybe 1 or 2 video cards...is there anything I should know in advance that might make my life a lot easier?

http://extreme.outervision.com/flowdesigner.jsp shows setups with dual outputs from processor water blocks as well as dual outputs from the reservoir. Is that the sort of thing I'd want for a dual processor WC setup?

Admittedly I haven't setup a WC rig before, but it looks fairly straightforward once you know what parts you want to grab and what the overall flow of your system would be. I'm just having a tough time wrapping my head around what would be the optimal setup in a dual proc, dual gfx card system.

Thanks in advance!
2P Workstation
(13 items)
 
  
CPUCPUMotherboardGraphics
Xeon E5 2699 v3 Xeon E5 2699 v3 ASUS Z10PE-D16 EVGA TITAN X 
RAMHard DriveHard DriveCooling
128GB Crucial DDR4 @ 2133MHz Intel 750 Series 1.2TB 4 x 4TB Constellation RAID5 2 x XSPC Raystorms 
CoolingCoolingMonitorMonitor
RS480 MCP655 Dell U3011 Dell U3011 
Case
Silverstone TJ07 
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2P Workstation
(13 items)
 
  
CPUCPUMotherboardGraphics
Xeon E5 2699 v3 Xeon E5 2699 v3 ASUS Z10PE-D16 EVGA TITAN X 
RAMHard DriveHard DriveCooling
128GB Crucial DDR4 @ 2133MHz Intel 750 Series 1.2TB 4 x 4TB Constellation RAID5 2 x XSPC Raystorms 
CoolingCoolingMonitorMonitor
RS480 MCP655 Dell U3011 Dell U3011 
Case
Silverstone TJ07 
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Reply
post #2 of 3
I think posting a sketch (simple) of what you want to do will help others see if there is anything wrong with your thinking.

A separate system for CPU(s) and another for video would yield the best performance, but I have no idea what you're looking to accomplish.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
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post #3 of 3
Quote:
Originally Posted by kweechy View Post
Just thinking ahead to the near future when the Xeon e5 chips are released. Going to be building a workstation with two of them plus two (likely) NVidia 680GTX cards.

All of the guides and tutorials I've seen are relating to a single proc and maybe 1 or 2 video cards...is there anything I should know in advance that might make my life a lot easier?

http://extreme.outervision.com/flowdesigner.jsp shows setups with dual outputs from processor water blocks as well as dual outputs from the reservoir. Is that the sort of thing I'd want for a dual processor WC setup?
No reason for dual outputs for anything really. The temp in-line will only increase 1-2c, for a max of maybe 5c temp difference across your entire water loop. 5c is something that extreme overclockers go for when doing extreme stuff with their processors, but if you're not doing crazy overclocking stuff (a workstation) then 5c difference won't be a problem considering how efficiently you'll be cooling chips that are designed with server racks and stock heatsink/fans in mind (i.e. high temps).

dual outputs doesn't really add to higher flow or exhaust either, how would it? Most modern waterblocks are very good at evenly dispersing the flow across their pin matrix or whatever else they use to radiate heat from the CPU through itself and into the water.

Quote:
Originally Posted by kweechy View Post
Admittedly I haven't setup a WC rig before, but it looks fairly straightforward once you know what parts you want to grab and what the overall flow of your system would be. I'm just having a tough time wrapping my head around what would be the optimal setup in a dual proc, dual gfx card system.
Thanks in advance!
Unfortunately until you know the expected heat output specs of those items, you won't really know how much or what you need. What are your space requirements for radiators? That'll make a huge difference. You can likely get away with 1-2 x120mm radiator per CPU/GPU core in the loop (with GPUs, 1 if only the core, 1.5-2 if full cover block). Also, are you going for quiet or for performance? The XSPC RX radiators are very very good all-around, and are very easy to come by, and do a great job with low and medium speed fans. I've got a HWlabs GTX360, and I have yet to stretch its legs because my fans are max 2100rpm, and on a fan controller likely only get to 1600-1800rpm, where the GTX360 really starts to amaze around 2200rpm.

I run on a fan controller which is temperature controlled by my motherboard, so when my CPUs heat up, the fans ramp up in speed, and when it cools down again, the fans are quiet again, so I effectively get the best of both worlds.
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