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[Build Log] Project "Overkill" - Quad GeForce Titan's - Page 27

post #261 of 782
Quote:
Originally Posted by soth View Post

Memory
690gtx's share their 4gb of memory between both chips. This effectively means each chip on a 690gtx can only use 2gb of texture memory. This limits their ability to perform well in surround mode with resolutions of 5760x1080 or higher
The 680gtx's I purchased have 4gb of memory per chip to use. This will allow me to run surround resolution games on 3 screens at 5760x1080 resolutions or higher without having to lower the AA or texture quality.
In summary:
1) Amount of CUDA Core's are identical between both solutions in Quad SLI
2) 680gtx base clock is 91mhz faster than 690 chips base clock on a chip by chip basis.
3) 680gtx base boost clock is 39mhz faster than 690 chips base clock on a chip by chip basis..
4) 4gb 680gtx's can display higher resolutions (Such as Nvidia Surround at 5760x1080) with AA / larger textures than the 2gb available to each 690gtx chip.
680gtx's also overclock much higher than 690gtx's as they are not as restricted by power. (there is only so much power the PSU can supply a single card under the current PCI-Express standards using 2 x 8pin connectors)

I'm not sure if anyone addressed this yest but the GPU memory part is merely wishful thinking =D When running SLI/Cfx each card must have the same data in each cards memory buffer, so even if you have 4 680's you are still locked at a max of 4GB. Which is still great nonetheless. More than enough for surround. I'm yet to hit my 3GB limit on my 7970 on eyefinity, albeit I'm only running one card so I'm sure there is a horsepower limit there.

Looks great tho!
post #262 of 782
Thread Starter 
Quote:
Originally Posted by Leftfield2263 View Post

I'm not sure if anyone addressed this yest but the GPU memory part is merely wishful thinking =D When running SLI/Cfx each card must have the same data in each cards memory buffer, so even if you have 4 680's you are still locked at a max of 4GB. Which is still great nonetheless. More than enough for surround. I'm yet to hit my 3GB limit on my 7970 on eyefinity, albeit I'm only running one card so I'm sure there is a horsepower limit there.
Looks great tho!

I mean no disrespect, but I think you've misunderstood the post, or perhaps I wasn't clear enough, I'm well aware that each card uses the same memory space when displaying video (Eg. 4 x 4gb cards does not equal 16gb of memory available.)

I currently have 4 x 3gb 580gtx's and regularly max the 3gb of texture memory at 6050x1080.

For example Metro 2033 in dx11 benchmarking with 4 x AA at 5760 or higher will easily use it all.

I still standby what I said above, a 680gtx with 4gb of texture memory will display higher resolutions with higher AA than a 690gtx with 2gb of texture memory.

While on the subject,

This is my current PC

Rampage Extreme IV,
32gb Gskill Ripjaw Z 2133mhz (9-10-9-27)
I7 3930k @ 4.8
4 x 4gb EVGA 580gtx
6 x Laing DDC's
3 x 480mm XSPC rads
3 x 240mm XSPC rads
EVGA 580gtx blocks
Koolance Rampage Extreme IV waterblock
Bitspower memory waterblocks
EK Supreme HF cpu waterblock.



oh and the bitspower snake fittings arrived,



Edited by soth - 11/30/12 at 3:04pm
post #263 of 782
Thread Starter 
Probably my least favorite part of any build is the USB ,power, reset, HDD and power cabling and LED's,

It's not that these cables are difficult to create or sleeve, they just use really small components and take a long time.

As I don't want cables running through the center of the case, each cable will go under the bays, around the PSU side, under the motherboard and then be plugged in,

With that in mind I've rigged up a few of these with a meter or two of 22AWG wiring for power and reset.



The mountain mods case came with these 5mm blue LED's with silver housing for the power and HDD lights. These will need to be extended but it's not a difficult task.




This is a picture of USB 2.0 cable showing the core wiring, this particular cable will be for the 2nd flow meter to the motherboard.




I've ordered a few meter's of USB 2.0 cabling for the aquaero to motherboard as its a fairly long path to travel.

Lighting cables also take a long time to do.

Here we see all the LED's going into the case, these will be shortened,lengthened or converted to 2 pin where required.




I'll also be running these CCFL extension cables (perhaps shortened - we'll see) which will mean the top and side panel can be removed by disconnecting the the cold cathodes. It will also mean the cold cathodes can be replaced if/when required without much effort.

I have something similar planned for the top 3 fans of the case.



I have a heap of pins and connectors to assist with the lengthening, shortening or recreating of any of the cables.

Edit

Top panel being done today, still deciding on the type of fan mesh/filter. Will probably go with the mesh for a uniform look.


Edited by soth - 11/30/12 at 5:09pm
post #264 of 782
Damn, you still got a ton of work to put into this build!!!!
Everything is looking great so far! I like those fans. thumb.gif
post #265 of 782
Quote:
Originally Posted by soth View Post

I still standby what I said above, a 680gtx with 4gb of texture memory will display higher resolutions with higher AA than a 690gtx with 2gb of texture memory.

And I'd agree. I guess were saying the same thing just different ways. I'll go back and re-read the post. I was in a noisy cafe when I was browsing the build log anyway
post #266 of 782
Thread Starter 
Quote:
Originally Posted by Leftfield2263 View Post

And I'd agree. I guess were saying the same thing just different ways. I'll go back and re-read the post. I was in a noisy cafe when I was browsing the build log anyway

Yup, I'd say so, just a misunderstanding smile.gif

Small update guys,

1) Top panel is nearing completion, I am just finishing the lighting cables, when completed will post Pics.
2) Once the top panel is done I'll be applying masking tape to the majority of the base of the case, and removing it from the case, I think I've figured out a way to make the symmetry work smile.gif
3) If i finish the masking tape I'll be doing measuring for the holes and the drilling, if not this will be tomorrow.
4) 2 x PCI-Express 8/6 pin are more or less complete, I have to apply heat shrink to the join in the middle (Enermax share ground wires on their pci-express cables, there is no way around this). Other than that they have no heat shrink for the pins. Will update with photos when I finish the top panel.
5) Sand blasting & powder coating of the sound blaster EMI shield is due to occur tomorrow morning, should be able to pick it up sometime this week.
6) Some more lighting, hdd and power LED, power sw/reset sw and usb cabling has been cut and crimped to length, they will just need to be sleeved. Hoping to sleeve this up tomorrow. Pics then.
Edited by soth - 12/1/12 at 4:31pm
post #267 of 782
good on ya mate!
Love your work , learned heaps as a first time water cooler.
One question that intrigues me ...why not Aquacomputer Poweradjust2 USB for fan/h2o temp/flow and on to your Aquero5?
I have both the Lamptron and 3 x power adjust 2 will install after advise.( don't understand German instructions that came with the package)
Thanks and looking fwd to lots more posts.
post #268 of 782
Thread Starter 
Quote:
Originally Posted by Falcon3 View Post

good on ya mate!
Love your work , learned heaps as a first time water cooler.
One question that intrigues me ...why not Aquacomputer Poweradjust2 USB for fan/h2o temp/flow and on to your Aquero5?
I have both the Lamptron and 3 x power adjust 2 will install after advise.( don't understand German instructions that came with the package)
Thanks and looking fwd to lots more posts.

The main reason I have not used poweradjusts is that my pumps are 24volt. The Koolance pump controllers convert 12volt power to 24 volt. This allows each pump to run at up to 55w instead of 30w and increases their pressure and flow rate. From memory I think power adjusts only allow up to 45-50watt and may not support conversion to 24 volt.

In terms of the flow meter's, each of the Aquacomputer flow meters offer both Aquabus and USB connections.

Aquabus is Aquacomputers propriety port which enables you to daisy chain multiple Aquacomputer devices together.

For example you can link many poweradjusts and a flow meter to a single Aquaero using a daisy chained Aquabus cable between each device.

For my build, the CPU loop flow meter will use Aquabus to connect directly to the Aquaero. The GPU loop will use an alarm cable back to the CPU fan controller on the motherboard (so if the flow stops, the motherboards built in alarms for cpu fan stop will activate), and to windows via USB for general monitoring with the Aquasuite.

2 of my temperature meters will be plugged directly into the Aquaero, the 3rd and 4th will be plugged directly into the flow meters and then to the Aquaero or windows using Aquabus and/or usb.

The only difference between an Aquacomputer device linked via USB instead of Aquabus to the Aquaero is you cannot control the USB device outside windows, or display values for the device on the Aquaero itself.

Last but not least, fan control via an Aquaero is not really practical in a build of this size with 40+ fans. The Aquaero itself can really only provide the power necessary for 3-4 fans, and while poweradjusts can also control lots of fans, they are quite expensive compared to a single controller.

In terms of an english manual for poweradjusts I'm not sure if there is one, but cpchris and/or his build may be able to help you there as he has multiple poweradjusts.

http://www.overclock.net/t/1266202/build-log-the-big-budget-boomer-box-aka-the-bbbb

The aquacomputer manuals page can be found here : http://www.aquacomputer.de/handbuecher.html and has manuals for the flow meters and the aquaero in english that do explain the Aquabus port and its use.

Failing that you can always try their english support forums located http://forum.aquacomputer.de/
Edited by soth - 12/1/12 at 9:58pm
post #269 of 782
Good on you mate-thanks for the advise and the time taken to respond I know you are a very buzzy man.thumb.gif
Looks like what I should have done was go with the Aquaero LT as a "slave" to the Aquaero 5 XT
instead of 3 PA2's....
I guess..you live and learn. (and research before- you buy!!!!)biggrin.gif
post #270 of 782
Thread Starter 
Quote:
Originally Posted by Falcon3 View Post

Good on you mate-thanks for the advise and the time taken to respond I know you are a very buzzy man.thumb.gif
Looks like what I should have done was go with the Aquaero LT as a "slave" to the Aquaero 5 XT
instead of 3 PA2's....
I guess..you live and learn. (and research before- you buy!!!!)biggrin.gif

Well it depends really,

The Aquaero itself is not really designed to run a pump by itself (LT or XT),

So if you're running one or more pumps then the Poweradjust is the better buy.

If you're only interested in flow/fan monitoring, controlling and displaying stats on them, then yeah maybe the LT in slave would have been better, but you can still do all of that with what you have bought smile.gif
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