Topic: M30 vs M50 a short review (Read 391 times)

You kind of answered the mystery by yourself, it's the "fast boot" that makes a difference, not the pool, the pool part was just a coincidence.

the fast boot will speed up the upfreq which you see on your miner's status page, all 3 boards will start with upfreq 0 and when all are tuned to their best ability they will turn to 1, the default tuning is a bit slow, so they introduced this fast boot to make it tune faster, however, as a result of this "fast" boot, some of the boards might not reach their maximum frequency and thus the miner will hash at a lower rate.

Keep in mind that even if tuned fine for one time, it could be bad in the other, it could be bad when you first test it, then on the second time it would be good, so my guess is you had pool x with fast boost enabled, the tunning was bad, you changed pool, the tunning went fine this time, so you assumed it has to do with the pool, if you kept the "bad" pool and rebooted a few times, you would eventually get it to hash at full speed.

It's great that you brought up that fast boot to the discussion, I advise AGAINST it unless you have these two things:

1- your farm encounters many power outages and you want your miners to tune in as fast as possible.
2- you have some monitoring software like AwsomeMiner which will automatically reboot the miner in case the tune doesn't get to full hashrate.

If you don't have the first one, there is exactly no need for fast boot, if your miner reboots once a month, why risk having a bad tune just to save a few mins? if you don't have the second one, what happens if the miner tunes at 70% of the hashrate and you don't notice it? it would be better to let it take its time to tune at 100%.

---

Alternatively, if you do care about fast tuning, you could use the upfreq speed option in the tools, it has a scale from 1 to 10, the higher the number the faster the tunning but the more likely the issues, so you could test something in between, maybe 4-6, then do a few reboots to make sure your miner tunes fine with every reboot and stick to that number.

 

Well I am going back to the mine in a few days I will be trying to alter some air intake via duct work on the intake side. It should make the “cold” colder. I am not sure if fast boot is setup I will check it.

Oddly enough I believe that the "power fast boot" option may not play nice with certain pools causing a reduced hashrate.

When I removed this option the miner took 10 minutes or so to fully spin up but when it did it finally reached full hashrate on the pool that it wasn't hashing well on.

This only occurred on 1 of my M50's but it maybe worth a look. Who knows...

Yeah room has a ton of heat. But I finally think I have it good enough for the summer. It was 91f and nothing over heated yesterday.

Of course we can do up to 102f. But with the nice software whatsminer give you can shut all the pieces down in about 1 minute on a really hot day.

Those 6 pieces are about 20kwatt or 90k BTU.

I highly doubt it has any affect, the hashrate is still whiting the specs of -+5% but i think it could do better, it seems like the env temp was not so great when the miner tuned, although temps look good now according to the image, I think a reboot would change the hashrate if the env temp is better than when it tuned the first time.

Phil,
Try a different pool for giggles and see what you get.

it is fixed new link new website

https://ibb.co/bLFDxV2

I get 116.37 not 118 it is close

I raised the the freq on it. it is close to 118


https://ibb.co/bLFDxV2

The image is not working, I don't use imgur as much recently since it does these stuff where it gives you a link and the link doesn't show anything, I use https://imgbb.com/ instead, you can copy the image link and post it here it will show just OK on the forum.

Please include a picture showing the frequency of the gear you said is underperforming.

fired up 2 new m50 units.


Need to tweak a bit as one of them is underperforming





oh Imgur is not sending any images to bitcointalk.org

this is a safe link


see post below for good img.

I ordered a pair of 118th m50 units today.

When I fire them up I will post some shots.

Maybe I get myself 2 more m50's

mike I sent you a telegram

that is easier I can do that.

Both links are not working for me, I get this error.


But I get the idea, I don't think it will do you any good, in fact, it could have a negative impact as those walls could trap the heat there and cause the miner to overheat, I'd say just make enough space between them, even better to space them with other low-power gears like your L3s, keep them clean and they will run just fine, I ran these monsters in 45c amp temp at my previous small farm which had terrible cooling, and they are still running, these are not the average Bitmain gears that would break easily.

Not saying you should toast them, but I see nothing wrong with the current temps.
                  

I was considering putting this between units.


https://www.lowes.com/pd/Reflectix-2-in-x-30-ft-Reflective-Insulation-Tape/3012014

https://www.lowes.com/pd/GreenGuard-1-X-2-X-2-Project-Panel-LG-1/5001929511


                  
[m30s+] _|_ repeat.


that would space the units say 3 inches and have a wall in-between the units.

I know my cold side is very cold so if a bit of air moves between the units it should work.

I think I can build three walls for 12 dollars

Actually, temps are not bad at all; fans are running at 5k rpm, which is not 100% since that is 7k rpm; the max temp for the hashboard is 80 c, which you are still 10 degrees away from; so unless the outside temperature increases by another 5-7 c, I do not see a problem.

One thing to know about whatsminer vs. other miners is that the miner's case is designed to get rid of heat, think of it as a large heatsink. You will notice they are hot to touch from the outside, unlike most other gears, so they cannot be stacked too close to one another. I prefer to keep 5 cm of space between them to allow the chasis to get rid of the heat easier.

Actually, judging by the Envtemp of the four miners, you can guess which two are located in the middle.

New image all four units in the asic room nice voltages but space is a bit hot.

I know why and will need to shift some lighter duty gear ..

IE: {M30s+} {L3+} {M30s+} {L3+}{M50} {L3+} {M50} will be the new shelf setup

vs

M30s+,M30s+,M50,M50,L3+,L3+,L3+

They are what I said.

As for price well it was back in Feb ... but anyway was 26.4 but included taxes, delivery, everything.

Yours are the "S" model, the "S" after any Whatsminer model represents a more effienct and usually more hashrate gear than the non-S, and then they have the "+, the more of it the more efficient, so any S++ model is better than S and better than S+ and so on.

tho are you sure yours has a +? That model is super rare, it has not been listed on their official distributes for months, which suggests that they made a very limited quantity of it, the currently available models are just the M50s and the M50, with efficiency ranging between 25w/th to 29w/th, and hashrate that goes from 108th to 130th +-5%.

The difference in price, however, is very unreasonable IMO, for example, it's 6$ difference between the 28w and the 25w versions, not sure if that is worth it for a power rate that's below 10c per kWh.

Hmmm, I guess I didn't know there are different M50 miners.
Mine are M50s+ and average 130TH/s at 25J/TH = 3250W
and are clearly averaging 130