September 12, 201213 yr This is the Hardware I have AMD FX-4100 Zambezi 3.6GHz (3.8GHz Turbo) Socket AM3+ 95W Quad-Core Desktop Processor http://www.newegg.com/Product/Product.aspx?Item=N82E16819103996 ASRock 890FX DELUXE5 AM3+ AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard http://www.newegg.com/Product/Product.aspx?Item=N82E16813157248 I am looking for a fan-less CPU Cooler any suggestions? Also I am trying to find out how to read my CPU temp? When I type sensors in telnet I get this I am running 5.0-rc5 Linux 3.0.35-unRAID. root@unRAID:~# sensors fam15h_power-pci-00c4 Adapter: PCI adapter power1: 29.27 W k10temp-pci-00c3 Adapter: PCI adapter temp1: +7.2 C (high = +70.0 C, crit = +70.0 C) root@unRAID:~# the only temperature that i get back is my video card. I think I may need drivers but don't know what to do from here.
September 12, 201213 yr What case do you have? Pictures would also help. The reason I ask, fan less AM3 and AM3+ CPU are normally huge!
September 12, 201213 yr Not sure what drives your desire for fanless but I can say this: if yuo choose a very high performing heatsink, like one meant for a 125w CPU, you can likely swap out the fan to something 1) much slower and 2) PWM controlled (if the m/b supoprts it which most do). Both my PC and my Unraid box followed that route. Under almost all load conditions the fan is moving slow. And by slow I mean it actually triggers a fan warning on the MB. By slow I mean, I had to tell the m/b to use a more agressive fan profile to even get the fan to start spinning on POST. I mean ... it is slow But amazingly without the fan, because of the HS design I'm sure, there just isn't enough convection to keep things cool. It also might have to do with having very little case airflow. I have a dog and the less dander and hair fill air I pull into my cases the better!!! The nice thing is, if I do something really hectic, I still have left over cooling capacity as the fan speeds up. And by speed-up I mean, I still have to open the case and look at the fan to know that it is moving in a quiet room.
September 12, 201213 yr Author This is the case I have; I am currently running with the stock cooler, 7 drives, 3x140mm and 3x120mm case fans. NZXT BETA EVO Classic Series CS-NT-BETA-EVO Black Steel / Plastic ATX Mid Tower Computer Case http://www.newegg.com/Product/Product.aspx?Item=N82E16811146059 I was thinking that I can use a Noctua NH-U12P or NH-C14 and running them without a fan or low speed. I can't imagine that unRAID is very taxing on this system and running one of these coolers or something similar without a fan will be enough cooling. That is why I am also trying to find out how to read CPU temp on my system. Not sure what drives your desire for fanless but I can say this: if yuo choose a very high performing heatsink, like one meant for a 125w CPU, you can likely swap out the fan to something 1) much slower and 2) PWM controlled (if the m/b supoprts it which most do). Both my PC and my Unraid box followed that route. Under almost all load conditions the fan is moving slow. And by slow I mean it actually triggers a fan warning on the MB. By slow I mean, I had to tell the m/b to use a more agressive fan profile to even get the fan to start spinning on POST. I mean ... it is slow But amazingly without the fan, because of the HS design I'm sure, there just isn't enough convection to keep things cool. It also might have to do with having very little case airflow. I have a dog and the less dander and hair fill air I pull into my cases the better!!! The nice thing is, if I do something really hectic, I still have left over cooling capacity as the fan speeds up. And by speed-up I mean, I still have to open the case and look at the fan to know that it is moving in a quiet room. What CPU cooler and fan are you using?
September 12, 201213 yr http://www.newegg.com/Product/Product.aspx?Item=N82E16835233003 Its nothing "special" other than it reviewed very well at the time for performance per dB. As you can see it is discontinued at Newegg however it gives you an idea of the size and design. It is cooling my desktop PC with an AMD Phenom II X4 975 3.6GHz. I'm using the fan that came with it, but as I mentioned I have the BIOS set to slow it way down until temps increase. My unraid solution, while also "nearly" fanless is not a worthwhile comparison because it is an AM2 For unraid you are right though, the CPU really isn't doing much work unless you are doing things like Plex transcoding. With all the case flow you have, a big enough HS with widely spaced fins might just give you the passive cooling you need. I would suggest not using the NH-C14 if you intend to try using it without fans. I think it hugs too tight to the board to benefit from case airflow. You want something sticking out there to catch the air.
September 12, 201213 yr Author How about installing sensors for my ASRock 890FX DELUXE5 so that I can read temperatures?
September 13, 201213 yr I did it back in 4.7 land, and had truoble in 5.0 getting it set up. I think it was missing drivers which might now have been added. There are threads around her discussing how to install the drivers but I can't remember them. a few searches around the forums should turn them up. FWIW, here is a great deal on a near clone of the HS I'm using on my more powerful desktop thatn I have just ordered to put in my unraid so I can completely remove my cpu fan http://www.newegg.com/Product/Product.aspx?Item=N82E16835181012 for $9 it is worth it. If it turns out I HAVE to add a fan, I'll still go with a PWM fan and "quiet" bios setting making it too slow to even hear.
September 13, 201213 yr Oh yeah and for cpu temp ... I just stopped worrying about it once I new things were cool because unlike a PC where you are likely going to be there when temps spike, you won't with unraid. So unless you have OS level monitoring and shutdown (possible if you write the scripts) your real "solution" is ensuring your BIOS is able to shutdown to protect the board. it will mean a dirty array stop but better than a smoked board + a dirty shutdown. Of course the first line of defense, adequate cooling in the first place
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