Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 661. (Read 1260395 times)

Again, the main source of noise in sp10s is the high cfm 40mm fans.
The PSU fan isn´t that annoying, furthermore this is only 1 fan, and spondoolies has confirmed that it will be slowed by firmware once programmed by them, as it has massive margins for +35°C DCs.

Ofcourse i wont advise anyone to put these into a very sound sensitive environment.

There is always a slower firmware setting available if you are really annoyed by the sound.

ughhh how about NO?

SP30 will use 2 x 1u PSUs...... did you see the render?

also, best way to get the old father interested in mining 
i'm working on him. first thing he says once i got it running (coupla cubes, couple singles, pile of blades and the sp10), was not regarding the noise... it was... 'wow much power' (i'm sure he's been dogeing lol)

Best way of getting back at your mother-in-law  

.. but seriously, most of your noise concerns should be gone when putting it in an adjacent buidling or even a free standing garage.

even better, install it in a relative's garage.   what noise? can't hear a thing.

The main noise is not from the psu, it is from the high cfm 40mm fans, and while the noise level is high, the main problem in a home environment is that the sound is very whiny (high pitch).
I can only speculate that the noise will be a lower pitch sound with the sp30s, as they use 80mm fans.

Why don´t you just install ac in your garage and put the units there,
that should take care of most of the sound problems.

I guess some custom enclosure would also be a solution but you should take care of high enough airflow, as the risk of heat-choking your units in a smaller space is obviously higher.
There are also some directly cooled, closed racks available for sale with 10kw+ cooling per rack already installed. Close the rack door and some noise is already gone.

I guess my opinion on this is unpopular, but i for my part think, a small unit size is excellent for any kind of datacenter deployment.

With the 1,25u / 2u for the sp30 respectively it is your choice which datacenter to use.

Got a standard datacenter in mind? Just use only 8 servers per rack.
If you have only a few sp10, most smaller datacenters can offer cheap colocation in shared cabinets by just putting them in racks that are not yet maxed out.

Mine is currently in a very small, low quality datacenter, designed for ~10kw racks however, i only pay for 1,25u + power, so it´s a fair deal for everyone.
Even though my intake temp. is 24-25°C i am still constantly over 1,4th, so nothing to fear there.

Enter deployment in bigger datacenters and you can really get good hosting quotes per kwh for bigger deployments.

I believe i read somewhere that spondoolies will be offering longer term hosting in different locations come summer, passing the bulk discounts on to us.

Keep in mind that while these are marketed to standard consumers, they where designed for datacenter deployment.


I mean before you go to exorbitant amounts of trouble building your own custom datacenter in your basement, run the numbers and datacenter deployment might come cheaper.
While i do understand the fuzzy feeling you get when looking at your units hashing away, you can still go visit them in most datacenters if you really feel the urge to.

Also if you do something wrong, the risk of accidentally burning your house down because you decided to run several 240V power lines yourself isn´t there.
Plus if you live in an environment with frequent brown/blackouts, no such trouble in DCs.

Yeah, right...What about standard 80mm fans with higher air-flow @ lower RPM...2U PSU with 80mm too...

Fixes are usually to correct something...which is not right to begin with...usually called "mistakes"...

Also correct.

We have fw control on the fans, so with proper ambient temperature, we can reduce the fan noise considerably.
Of course it also depends on the mining mode: "Quiet" / Normal / Turbo

The PSU has one or more small fans as well, though it does sound like that might eventually get quieter with a firmware fix.

Small fans have to spin faster to move air and are therefore almost always much noisier than bigger fans given the same cooling requirement. 1250 watts in 1.25 U is a lot. Cooling that with 40 mm fans will likely always be at least somewhat noisy.

Indeed. Still waiting for firmware fix from Emerson. Getting much better results with a larger model or other vendor.

Bigger fans have nothing to do with it. I believe it was confirmed that the psu is what makes them so noisy.

Okay maybe


For the most part, the power density is too high for data centers unless it is an exotic density DC (expensive).  42 kw per rack is off the charts.

That said you may have a speciality application in mind, for example sharing a data center with some existing or planned low power density application.


Yeah, you probably do. I mostly meant it as a reply to the guy trying to figure out how to make them quieter in a home environment.  Mod the case and use bigger fans.

I second this...

With all my due respect to Spondoolies-Tech's team, engineers and their hard work...and excellent product...

Seems like 1.25U choice was kind of "afterthought"...Why not the standard 2U unit...with nice 80mm fans, 2U server PSU...etc...
Just give me one reason 1.25U is so "better" than 2U...?

Just IMHO...Your decision/product...

ZiG
 

Shipping costs ?
Deployment in high density DC ?

Give us a bit credit we know what we're doing.

Have to agree with that. The 1.25 U form factor is pretty pointless. Bigger fans are much quieter, end of story.

I disagree...

I've built several high end home theaters. There are products for building venting pipe for HT that completely removes noise travel even down to 50-60Hz ( BASS). Its essentially making a muffler using High temp rated acoustic pad (for hot air). Sound freq will be trapped and eliminated.

I can build a complete sound proof room while still have all venting system working. The hardest part is actually the entrance door (using double door , a room within a room)

Anyway, i dont think its even worth it to build a silent room for SP10, or SP30. Just remove all those 40mm fans completely and build an air chamber with bigger fans.  
 

No offense but your guide is moot when you ranked KNC B+ .....

This company's rating has changed in the Manufacturer Trustworthiness Guide.

Run them flat, the passive convection won't mean much compared to the airflow from the miners. Also the acoustic foam chimney is a bit of a misnomer, it changes the frequency profile of the noise rather than reducing it (confirmed).