Temperatures, Cooling, Noise
The system is fully loaded using Furmark and Prime 95, similar to our laptop testing. The sound recordings are made in front of the machine, about 6 inches from the center of the tower. Temperatures are reported as recorded by CoreTemp and Furmark.
Incredibly, the ODE has trouble keeping the un-overclocked Haswell CPU cool, with it reaching temperatures of 86 degrees Celsius. There are a couple of scenarios for this: either Haswell is a very hot architecture-a problem Intel experienced with Ivy Bridge and something I can't verify due to it being pre-release hardware-or the thermal paste is not applied well. It's not software as warm temperatures were verified in the BIOS.
The new GTX 780 reached temperatures of 83 degrees Celsius, which is much less of a problem for a GPU. It didn't sound like the GPU fan even spun up from its idle setting, indicating the card should have good overclocking headroom.
I'm fairly certain the Digital Storm resulted in my hearing loss. While I exaggerate, the system did produce the loudest sound we've seen from any review unit at 59 decibels. It's noticeably loud because the fans were spinning full-throttle due to the high temperatures seen by the CPU.
Power consumption is measured while the system is loaded for the temperature test and while sitting idle at the desktop. Measurement is taken at the wall, so it includes everything running in the system, not including the monitor.
At idle, the machine draws 86 watts. This means it's about the same as leaving one incandescent light bulbs running. During a full load, system energy draw spikes to 425 watts. Haswell is touted to be energy efficient and one of the largest jumps in battery life in the history of Intel architectures. However, the power consumption figures don't fully jive with this claim. I'll be excited to observe this when we receive a Haswell-powered laptop for review.
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