[QUOTE=kladner;373657]You could try under-clocking them to keep thermals under control. [/QUOTE]
How do you do that on a headless linux system?

[QUOTE=Xyzzy;373655]You are talking about the .RUN installer? [/QUOTE]
CUDA 6:
[CODE]https://developer.nvidia.com/cuda-downloads[/CODE]

We did not know CUDA 6 worked. Did you use the .deb or .run install?

[QUOTE=blip;373658]How do you do that on a headless linux system?[/QUOTE]

Oops. Sorry.

[QUOTE=blip;373658]How do you do that on a headless linux system?[/QUOTE]

I can't remember where on the forum it is, but owftheevil gave some guidelines as to how to change the clock settings in the BIOS for nvidia cards. Needs Windows (or, at least, a DOS prompt) and a display and keyboard during the changes, but not then again -- the changes are retained during reboots / power cycles.

It worked great for me (fortunately the machine currently hosting my GPU is dual-boot) -- I had to use the technique to down-clock the card's memory to get stable CUDA LLing.

[QUOTE=Xyzzy;373660]We did not know CUDA 6 worked. Did you use the .deb or .run install?[/QUOTE]
Try .run. But be sure to also use the "right" driver, and get rid of nouveau first.

[CODE]http://www.nvidia.com/download/driverResults.aspx/75340/en-us[/CODE]

[QUOTE=VictordeHolland;373554] (electricity is very expensive in the Netherlands).[/QUOTE]

Just out of curiosity, how expensive?

In Portugal I pay 20.18c / Kwh (day rate) and 10.7c / Kwh (night rate). Prices include 23% VAT.

[QUOTE=lycorn;373673]Just out of curiosity, how expensive?

In Portugal I pay 20.18c / Kwh (day rate) and 10.7c / Kwh (night rate). Prices include 23% VAT.[/QUOTE]

Wow. Here it is 10-12 Kwh. (without other charges, which...)

[QUOTE=kracker;373675]Wow. Here it is 10-12 Kwh. (without other charges, which...)[/QUOTE]

From what utility? The marginal rate is what matters, as your daily life uses up all the tier 1 and likely much of the tier 2 power rates. If you powered down the computer, you'd be using less of the most-expensive power, but still all of the cheap 10c/kwh stuff.

For my Riverside muni power, tier 2 is 16c/kwh, and I rarely hit tier 3 which is 21. For SoCal Edison, most of my friends are on tier 3 which is ~24c/kwh, while some larger families are on tier 4 ~27c/kwh.

-Curtis

Wow, I never realized how cheap our electric is compared to most.
The first 900 kWh per month is 6.4313 c/kWh, with additional energy costing 5.2575c in winter, and 7.5589c in the summer. Of course, additional charges are in there, too, for infrastructure and such.

about 21 c(€) per KWh + VAT, and still increasing...