Supermicro SC846 Cooling Modifications - A More Detailed Look
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- เผยแพร่เมื่อ 3 พ.ค. 2018
- This video goes into more detail on all the cooling modifications I do on Supermicro SC846 chassis. This system was built for a client, but is basically the same as the system I covered in my last video.
More details of this server build, as well as my contact information, can be found on my website: jro.io/nas/
Follow me on twitter: @JRoConsulting - วิทยาศาสตร์และเทคโนโลยี
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Very nice modification!
Well made video and I was about to have to move mine out of my office closet, this saved me ...... THANK YOU
Thanks for creating and sharing this informative video.
Great video thank you. Gives me great ideas for future build. Like some others I cant understand the air flow from the front with the backplane in the way. The added use of the direct attach backplane also adds to flow restriction with the additional SAS cables instead of the port attach. So I think keeping the side vent holes behind the backplane would allow more air into the fan wall and exhaust it backwards to the rear. Air will find its way around and i am not an engineer so I will have to trust that they know what they are doing. Your front air shroud will help force more air in so that is good. Great build again and looking forward to following you.
Nice video!
nice idea will do same with my SC847
I just plugged in the stock fans to my mobo instead of the backplane, set them at a speed that kept the drives below 32c, and used active cpu cooling. Whisper quiet, also in an enclosed rack
Thanks for the very detailed video. I am upgrading my system based around a Norco RPC-4216 to one of these. Do you happen to recall how thick the wooden bar up top was, so I can prepare and buy the right material?
Much obliged.
Whats the big different between the 2 different back-planes ? I have the 1st one in my FreeNas. It seems to work just Fine for my 16 Disks and 5 SSD's
Hmm ... I never figured 3 140x140 fans would fit there. I already got somewhere to put this mod to good use! Thanks for sharing.
It's 120mm fans in the middle of the chassis, 140mm on the front. 140mm would fit inside the chassis if you took out all the PSU stuff (the PDB, etc).
@@JasonRose Oh, ok. Got into a discussion with some folks about the noise of those servers. They solved the noise problem by putting a seperate server compartment in the on-set truck so sadly i won't dremel those... Still a great mod!
How important was the woodbar to improving cooling?
Hey Jason, how did you install the fans in the front 140mm shroud? I can't seem to get mine to go into the mountpoints
hey there I am looking to mimic your modifications. I am not very handy with woodwork. Would you be able to make another one of those wooden bars that goes above the fan walls? I would pay you for this of course
Wow great video very interested in the fan front shroud for my super micro 846 will contact you
What cpu cooler was used in this chassis and on what board? In trying to figure out if a NH-U12DX i4 will fit on my x10DRI (once it gets to me) inmy SC/CSE846.
Being that you 3d printed the front fan shroud, why didn't you for the middle fan wall?
The three fans literally fit perfectly in that space. An additional shroud there would only Hinder. That's why he put the wood bar on top. That's all that's additionally needed. You could 3D print that would bar I guess but I think that's more expensive than just buying cutting wood. If you're a person like me however and you don't normally would work then yes you might want that top part 3D printed. However you still would probably have to sand it down to size anyway
great work!
I did something kinda similar to a supermicro server, for noise reduction, theres a video on my profile.
After reading all the bad reports on the back planes of the Norco chassis, I have decided to grab a used Supermicro. My rack is next to my desk. Are these mods quiet enough to be next to my desk?
I grabbed your STL file. I just had to split it into 3 pieces to make it fit on my PRUSA MK3 but it printed and almost perfect the only issue I had the bottom fan support with the hole did not print on one corner. I printed it separate and glued it on. Might have been something I did but at 10+hour print I did not want to retry the entire thing. I did print with supports on.
Any chance you could share the split out build? I do not own a 3D printer but would like to use an online service. They don't want to do the print as is for less than $1K.
very great mod mate! wonder what it improves the cooling with the extra front fans, what connections have the powersupply came with the case? ready for a treathripper build? can we buy the case without psu and put a normal atx psu into it with some mod? i really dont understand the case numbers and parts from supermicro , its a hell to search anything, but thats prob due to the thing thats it is not designed for consumers.
@Brad Viviviyal Hard to find, harder to find parts for, less room inside, backplanes burn out, more expensive when you can find them. I own both, guess which is easier to work with...
The SAS backplane blocks the air flow so much it's surprising more servers don't go with the backplane down orientation so that the drives face upwards and the SATA/SAS ports downwards. That way the backplane doesn't block flow at all.
A lot of chassis actually do do this. This type of chassis is more specific to hot swap. If I were doing this again I would have died a chassis like the one you just mentioned. Those also typically hold more hard drives which I needed
I never understood how air was supposed to pass that backplane. I do see the small square holes in the PCB, but to call that slightly inefficient would be the understatement of the year. It seems that the design is more intended to direct high pressure air flow over the CPU's than to keep any drives cool, hence the side air holes. I would say the greatest cooling effect you could possibly achieve with that backplane in the way would just be creating enough air flow to cycle the stale hot air in the HDD cages. No direct pressurized air flow seems possible. Also you could most likely remove that tab in the case by simply wiggling it back and forth like a electrical box cutout.
Any reason that weather stripping (foam or flexible rubber) wouldn't work on the top of your modified inner fan wall? It seems like that would be much easier than using wood.
I found this video while looking for modifications for an 847 case. that case uses an airflow shroud over the RAM/CPU along with a passive CPU heatsink. Since the inner fanwall would be providing less CFM than the original, will I need to replace the stock heatsink with an actively cooled one and ditch the shroud?
Weather stripping might work on that gap, but it would have to be pretty thick. I think you'd need a piece on the fans and another on the underside of the lid. Also keep in mind that the lid has to be able to slide backwards easily to be removed.
Depending on the TDP of the CPU, you may want to upgrade to an active cooler if you mess with the fans/shroud. You could always try it with the current stock one and swap the cooler later if it gets too hot. Modern CPUs should all throttle down if they get too hot to prevent permanent system damage.
Looks like this case is similar to the Supermicro CSE-826. Does a standard ATX fit in there well?
Yep, it supports ATX motherboards just fine.
I sent you an email about a 17 bay server I have been trying to build for months now. Hope you can help me.
Please let me know.
Help me understand why this is done oppose to adjusting the previously existing fans via the motherboard for quieter operation.
👍
HELLO ARE YOU TAKING ON NEW CLIENTS?
Cool Video,N Yea I Know Its A Older Video & Case For That Mater But I Have The Exact Same Case That I Am Curently Moding With 3 BQuiet 120mm Fans & Pair Of B quit 80mm UpGraded The Coolers To The Gammaxx Coolers & Its Way Quiter But I Tried To Keep Mine So I Could Go Back To Stock If I Ever Needed To As Kinda A Justin Case Thing.lol. Now I Need To Get a Pair Of The Quit Power supply's 1200W Ea However My Main Thing Right Now Is A GPU Power Some How..I Have A Empty 12V 4Pin Cable And A Unused 4Pin Molex The Molex I Think I Will Add A Sata Power Spliter For A Pair Of Internal ssd's An I Am Trying To Find A 4Pin To 6+2 Cable I Could Cut/Solder & Heat Shrink A 6+2 Cable An Make It Look Factory But Only As A Last Resort & If I Cant Find A Good Adaptor ! Cool Video.. Have You Ever Done A pice Power Cable Mod To One Of These CSE-846 Cases ?? Thanks
My only concern is that you might be pulling to much current from that one fan header. You should probably break out the power and ground wires and run them directly to the PSU.
This is definitely a valid concern and one that I had as well while designing the system. However, Supermicro specs each fan header on this board (and on most other modern boards) to handle up to 3A: www.supermicro.com/support/faqs/faq.cfm?faq=24693
The 140mm fans pull a max of 0.55A each: noctua.at/en/products/product-line-industrial/nf-a14-industrialppc-3000-pwm/specification
And the 120mm fans pull a max of 0.3A each: noctua.at/en/products/product-line-industrial/nf-f12-industrialppc-3000-pwm/specification
Giving us a total current of up to 2.55A on that header. Note that it's typically only ever running the fans at full speed during the boot sequence before the fan control script kicks in. A consumer-grade board would almost certainly be fried if I tried to pull that much current from a fan header, but thankfully, Supermicro builds very high quality stuff.
Putting the fans on different headers would also cause other issues as the FAN_A header is the only header in the HDD cooling zone on Supermicro's IPMI multi-zone cooling system. Connecting the fans directly to the PSU would make automatic fan control impossible and entirely defeat the purpose of these modifications.
It's nice that they give you those specs.
@@JasonRose just passing, and i had the same concern.
It seems you don't know about PWM + Molex splitters ;)
Out of a google search with those terms, i could easily find this nice one :
"AKASA FLEXA molex to 5x PWM fan"
It enables you to plug 5 PWM fans into a single PWM header, and have no risk of frying it since you only use the Control and Signal pins of the header, while taking the 12V out of a molex 12V rail
and if you're using a "board type" PWM splitter with takes in a "motherboard side" PWM connector, there's even this thing around :
www.aquatuning.us/cables/fan-cables-adptors/20903/phobya-y-cable-for-pwm-splitter-4pin-pwm-to-4pin-pwm-4pin-molex-50cm-black
lets you connect your PWM splitter to molex + PWM
PS : called it "motherboard side", as in France, we call this side the female side, as it's the one where we plug things into, and the "fan side" (that you called female) we call male :p
I tend to see this type of thing a lot with WaterCooling pumps, since they can really pull a lot of power, and would fry most consumer motherboard PWM headers
How much more quieter is the PWS-920P-SQ?
Not sure, I've never run the original ones...
MUCH quieter! I can't even hear my new 920P-SQ
I’m wondering why you didn’t just Dremel larger holes in the existing fan wall to accommodate the larger fans and shave down each of the fans slightly the fans slightly to adjust for the thickness of the metal without blowing through the side walls since you’re running the SAS cables through the lower baffles, that way it’d be a cinch to remove in the future... I have one of these 846 chassis with a direct attach backplane I bought on eBay used with a dual-Opteron server for cheap and that’s what I’m planning on doing... It’ll need the extra cooling with 24x 4tb HGST drives in the front bays, and a matched pair of Xeon E5-2680v2’s heating up the interior... It’ll live under the desk in the living room, so it needs to be pretty close in noise profile to the full-tower Plex/PlayOn server it’s replacing...
That seems like way more work than what I did and for really no benefit. How often are you removing your fans? I have to cut like 2 or 3 zip ties and mine come right out.
Jason Rose there’s a lot of dust buildup in the downtown area that I live because of all of the truck traffic, so I have to partially disassemble my machine and clean the buildup 4-5 times a year (about as often for the laptops as well)...
@@reedbrousseau5884 have you considered an air purification system for your server room/home office? Might not be cheap, but might save you all that cleaning time - and be healthier as well.
Bryan Shattuck I have two electrostatic dust filters in the apartment running 24/7 which I clean weekly, it doesn’t keep up...
total waste of money and time, minimal fan noise is as simple as two ipmitool commands... bing bang done
It's even quieter if you remove the fans entirely. Congrats on cracking the code
@@FunkyKong immersion cooling is the dream