On 2/25/2014 3:47 AM, Dan wrote: > I recently bought a workstation to do calculations. It has two Xeon > processors with 16 cores and 32 threads in total. I realized that the > temperature gets very high on high load typically 80C. That is way too > much. Then I changed the fan speed in the bios from auto to high. Now > temperatures are reasonable 45C, but it is very noise and it never > stops (even with no load) I have to reboot the computer to change the > fan speed.. ... > Any idea or suggestion?
Is it the CPU fans or the chassis fans generating the intolerable noise? If just the CPU fans, you can simply replace them with quieter models. If your system accepts wide coolers, two of this model would be suitable http://www.newegg.com/Product/Product.aspx?Item=N82E16835114120 If it accepts only narrow coolers, then two of these http://www.newegg.com/Product/Product.aspx?Item=N82E16835114142 The 8 core Sandy/Ivy bridge Xeons range from 95-150 watts Thermal Design Power, or 180-300 watts combined for a 2 socket system. The stock style fans required to evacuate this amount of heat, plus that of the GPU, HDDs, system chipsets, DRAM, VRMs, etc are not going to be quiet. Dual socket/professional workstations are generally not very quiet machines. Beyond replacing the CPU coolers there are a number of ways to reduce the noise while still achieving the required airflow for proper cooling. Run the fans at full RPM all the time, while damping the interior of the chassis using acoustic damping pads such as http://www.acoustiproducts.com/en/acoustipack.asp When applied correctly, thoroughly, to all interior surfaces, this will absorb much of the high frequency fan noise emitted by the CPU and chassis fans. I don't use such self stick thin foam pads as they are over priced and the performance isn't that great for the money. I use 1.5" acoustic egg crate foam attached with 3M Super 77, as the egg crate foam yields superior acoustical damping performance. http://www.parts-express.com/acoustic-sound-damping-foam-1-1-2-x-24-x-18-ul-94--260-516 This is the material used inside of speaker cabinets and recording studios. The self stick thin foam is much easier for most people to install which is why I mentioned it first. You can also use a manual fan speed controller such as http://www.newegg.com/Product/Product.aspx?Item=N82E16811999171 This allows you to fine tune noise level vs cooling performance using continuously variable knobs. This requires replacing any existing PWM fans in system with non-PWM fans if using a standard fan controller. There are some PWM controllers on the market but I'd avoid them. -- Stan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/530cdc9b.7090...@hardwarefreak.com
