I popped three 12gb Titan's in my vintage Alienware today.. The first issue I ran in to is that the Titan's are significantly longer than the GTX760's and butt right up to the Corsair radiator. I purchased some Antec 120mm fans (1600rpm 56cfm) and replaced the stock fan on the access door and put one in the rafters of the case (hidden) just to the left of the second set of memory sockets (C&D).
To get the case hot I put the system through some exhaustive 3DMark benchmarking tests running the tests for approximately 7 hours. I set up recording for my frequency and temperature monitoring so that I could look at temps relative to time and CPU frequencies. I ran my processor at 4.6Mhz 1.325 core voltage and my memory at 2000Mhz, 1.55v. My fans were set to turbo mode.
According to my AI utility, the motherboard temperature ran as high as 57@ and my CPU hit a high of 68c for a relatively short period of time. Throwing out the outliers, I came up with a case mean average temperature of 51c at 100% load. GPU temperatures on the Titan's averaged a high of 69c at full load. Idle temps of my processor averaged 24c, while the motherboard averages 39c. The Titans ran very cool at idle, at an average of 27c.
The most disturbing issue that pretty much made up my mind of how i finished my vintage Alienware build, was that I did not consider power consumption. Running the processor, fans and liquid cooling, the system averages about 190w power consumption. With 2 GTX 760's, high wattage peaks at about 580w. The titans pegged the PSU at full tilt, 850w and were obviously needing more. I stuck a 1,200w PSU in and pegged it as well and no doubt, I am still underpowered.
Faced with having to purchase a 2000w psu and giving it another try, I made a call to the folks at EVGA and simply asked them how much power I was going to need to run my current setup, they recommended 2000w and a minimum of 200amp. The cost of running this setup is prohibitive for most middle class people. A disadvantaged family could never afford it and the case will not take a power supply of that size.
So I have finished my build with the purchase of a EVGA GTX 780 3GB. I toned down the over clocking to 3.9 and some change. I ran a 3DMark Firestrike test just for the heck of it and I am very happy that this build achieved a score of 10,241. A little fine tuning will bring that up a few notches, but not bad for a semi tuned build. Case temps are under control and the Corsair H105 is performing outstandingly.
I am now starting my next build, a system for myself for a change, that I am waiting on the case and MB to arrive this week.
I will be using a NZXT White Window Edition 820 case with a Rampage Extreme IV Black ED MB, Intel 4930K CPU, 32GB Corsair Vengeance PC1700 2400Mhz RAM, Corsair H110 liquid cooling (i'm hooked), One EVGA GTX Titan Z 12gb GPU, (I have two more for donation or sale if anyone needs them), Corsair 1,200w digital PSU, 4 Intel 3500 series 600gb SSD, 1TB WD Black, LG BlueRay (1st slot), LG DVD (2nd slot).
I am very excited about the new build and wish the case and MB were already here. All other parts have come in. This will be my first PC since I switched to MAC in 2009. I want to thank everyone for their input in helping me get my radiator straightened out in my vintage Alienware. I have already found a deserving 12 year old who will be receiving it by the end of this week. I will post some pics of the new build soon.