iBUYPOWER: 4.0GHz QX9650 and 3-way SLI 8800 Ultras
by Matt Campbell on April 10, 2008 9:00 AM EST- Posted in
- Systems
Power, Noise and Temperature
Power
We measure power consumption using a Kill-A-Watt device at the wall outlet. Idle indicates a measurement taken in Windows with no applications running. Max indicates the maximum power draw with the system fully loaded (running Prime95 Blend, CINEBENCH x-CPU render, and 3DMark06 simultaneously).
If you stand close to your spinning electric meter, you could probably cool yourself off on a hot summer day with this system running inside. Still, it's well under the rating of the power supply.
Noise
We measured noise with an SPL (Sound Pressure Level) meter, at distances of 24" and 48". The case fans and video cards dominate the noise produced. For reference, ambient noise was approximately 38.5dB(A).
While the system is undoubtedly noisy, the numbers look worse than it sounds. The sound produced is at a high level but low pitch, which generally "fades" into the background more readily than a higher-pitched whine will. Still, this is not a system you would want running in your bedroom or living room unless you are quite fond of white noise.
Temperature
As this system uses an NVIDIA motherboard, nTune can read information not only from the GPU, but also from the CPU and case - at least in theory. The idle temperatures from NVIDIA System Monitor are shown below for both the CPU and the GPUs; unfortunately, due to software issues with System Monitor and other problems (see next page), it was not possible to gather maximum temperatures.
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m2super - Thursday, April 10, 2008 - link
I bet if you pull 2gb of ram from the system with all the cards in you wont get this error message!Do a google search of this annoying issue quite a few people with vista 64, 4gb of ram and an sli config. The fact nvidia/ms havent done anything to resolve it is bs imo.
kuraegomon - Thursday, April 10, 2008 - link
I run SLI-ed GTX's, with RAID and overclocked Q6600. The only reason for a setup like this is to game at 1920x1200 or above. I have a 30' monitor, and like to game at 2560x1600 whenever possible. I believe that triple-SLI only makes sense with 2560x1600 resolutions, and you'll need the extra GPU-to-GPU bandwidth/lower latency that the 790i will provide, to really examine this. Sorry to say for anyone who bought one, but the 780i is already obsolete. (Of course, my 680i Striker Extreme is even moreso).Matt Campbell - Thursday, April 10, 2008 - link
Higher resolutions are in the queue for our next high end rig.Maffer - Thursday, April 10, 2008 - link
You just run into very annoying problem which has been with 780i quite quite a long time now. Please see this thread:http://www.evga.com/forums/tm.asp?m=256404&mpa...">http://www.evga.com/forums/tm.asp?m=256404&mpa...
You can find lots of people with the same problems right there. Nvidia is doing nothing to solve this crap. Some folks have switched to 790i system and problems vanished. This cannot be the solution though. Please Anandtech, if you have any powers to do something about this...at least poke nVidia around with a large trout or something :/
67STANG - Thursday, April 10, 2008 - link
I think people that build these "uber" machines forget their target audience: "the enthusiast". What enthusiast buys a machine like this rather than building it themself?I don't know about anyone else, but part of the fun of a high end computer is building it (at least for me). I wouldn't want to spend $5k+ on a system that I probably could have built myself for much less...
Granted it gets very high scores on benchmarks, but it would be hard not to with what is in it... I believe something could be built that could beat this for hundreds less. Pass.
abhaxus - Sunday, April 13, 2008 - link
There are most definitely people out there that buy the fastest computer available but have no clue how they are built.To use a car analogy... you are arguing that everyone who buys an Impreza WRX is stupid because you could buy the RS and put a turbo on it and go just as fast. The WRX is pre-tuned, has a warranty, and has a badge that says it's fast. These are the same people that buy a Dell XPS or Alienware rig.
To a semi-knowledgeable but not guru-level person, saying "i have an alienware pc" is a lot easier than "I have an overclocked 3.2ghz quad core pc with 2 8800GTS's in SLI"
Noya - Thursday, April 10, 2008 - link
Exactly...you don't buy a review article on a hardware tech site.HOOfan 1 - Thursday, April 10, 2008 - link
If these are the problems that are going to crop up and you will have to troubleshoot them yourself (which seems the case from reading the reviews on resellerrating.com) then you may as well just build it yourself and save even more money.