Topic: ANTMINER S3+ Discussion and Support Thread - page 171. (Read 710164 times)

I don't have a pre-thermal paste change stats saved to compare but a problem S3 that has seen its heat sink compound changed runs at much lower HW errors than my good S3 but has tailing off hashrate.  Not sure how important it is as my two S3+'s have starkly different HW errors both running 1 day 20 hours, 452.17GH/s HW 3,974, Utility 17 & 453.61GH/s HW 153 Utility 17.  Online the machine having the higher HW errors and slightly lower hashrate has more shares, roughly 2.3% more shares.

ok 2 upgrade kits up and running, neither show rpm's for 2nd fan so I assume that part is lingering from the S1's control board.
Oh well not needed, I've had 2 fans on these since turning them on.

Both running at 492gh/s good enough for me.

I'll say one thing about Bitmain, they sure think using 10x more tape than is needed is a good thing.
Now I ponder why the tape is yellowishy... smog related?

Bummer.  Up now over 6hrs and the hashrate has started to drop off.  Could be to an increase in humidity and that the first S3 hasn't seen a similar tailing off of hashrate because its average is over a 12hr period but probably not as it's at 442.24GH/s utility 17 while the problem S3 has tailed off to 437.63, utility 15.  Experience tells me it will continue to fall and tomorrow morning may be down around 420GH/s.  Temps are 40/39 and fans 1920/1620.  The good S3 has 40/38 3180/1920 and the good and questionable S3's are side by side.  What jumps out are the higher fan speeds of the good S3.

What speed is the other fan reporting?

One of my new S3s has a fan running at 3900 RPM even though the temperature indicates its only 35 C. Has anyone seen this before and know how to resolve?

Thanks!

Anyone know if replacing heat sink compound generally helps relatively high HW%?  I just installed a couple S3+ and one is great, but the other is running about .02% HW (much higher than any of my S3s) plus it's also very sluggish to gather speed.  (August 26 FW and cfgminer 4.6.0 in all.)

PS. I'm thinking this is one S3+ which is happier as an S3 at 218.75MHz -- rapid speed attainment and low HW%.

PPS.  To Whom It May Concern -- The Aug 26 FW release definitely includes the 243.75  MHz clock!

Ok, so technically me and visdude are both wrong so apologies here.

1 upgrade kit done running at 243 getting 492gh/s. I used the non gui freq firmware and added cgminer 4.6
not showing the 2nd fans RPM's though. although I think this one had one of the older 2013 junko fans on it that I swapped out with a dell 390 fan. so I am not worried about that as the temps are 40/37 which is the same as the other s3's

I have two of the Antminer S3+. One I set up problem free.

The other, after a botched upgrade on the firmware, is no longer showing up on any IP scans and I can't access it. What should I do?

top right corner 20140801

May I ask how one finds the hashing board date?

im awaiting delivery of mine, but last update whas leaving shenzen on the 16th :-/

anyone installed an upgrade kit yet?
I am about to do some. I dont see how they get the S3 firmware onto them tho??
there is a new power board and the old control board is attached to it.
So how does it get the newer firmware on it? Their video kind of forgets to tell you that!
Also their video doesnt show where these springed screws go.
Never mind the dude putting screw mounts in the middle of the board where the heat sink is supposed to go then suddenly those screws are missing when he puts the heat sink on...

 I havent taken and S1 or S3 apart before so why would I know this info!

I looked over the new hashing boards and they luckily dont look burned and are dated 8/1/2014 so hopefully they are good stuff and not batch 1 junk. blah!

Not tried that one, but my S3s fans are regularly over 2000 rpm, so I don't think that's high enough, unless used on the outlet.  However, it has a high static pressure and is more of a heat sink fan than an outlet fan. 
With just 3 pins, it will probably run flat out all the time, but I haven't tested that.

I have tried a CoolerMaster JetFlo PWM high airflow (95 CFM) fan on the outlet of one of my S3s, but that wouldn't work properly.

So the problem S3 was down around 430GH/s this morning and I decided to go over its probably reworked board, the board that had grossly over-tightened screws, but would try frequency change first. 

It had been down to 430 so I tried changing the frequency to check out its effect on hashrate.  In /etc/config/asic-freq I changed to f=225, rebooted and restarted cgminer to get a fresh time duration.  I gave it some time but it came up very slowly only to 420 or so.  And it was a cool morning!  All the other machines were hashing perfectly.  So, I tried again, this time with f=212.5 but again it came up slow and only to 417GH/s.  So, I ripped it apart again.

I was going to concentrate on its ASICs at the hot end of the reworked board, but ended up getting distracted.  What distracted me was that the board had marking in black ink at the far right under the top ASIC (on this board that would be near the intake fan).  Might have been Chinese or a code of some kind.  So, I cleaned that ACIC and the one under it with a spray of automobile brake cleaner such that all thermal paste was removed.  Must be careful with the stuff as it will mar many plastics.  I sprayed those ASICs cleaning around the pins, reapplied thermal compound to both sides of the blade and reassembled.  The brake cleaner removed the notation marks on that blade.  When I reassembled, for a change, I put the bad board on the right side facing the RJ45 connector.

I started it up then ran to the store and back.  Right now the 'difficult' S3, at a frequency of 218.75, after 1hr 20min, has an average hashrate of 443.74GH/s.  The temps are both 40° with fan speeds of 2040/1800.  Time will tell.

Not a ton, but here's the list that I know of.

• Security
• More responsive UI

I missed in buried in this thread somewhere but what is to be gained by updating the version of cgminer in these?

Thanks for the link just ordered 1.

Would these 3 pin fans would work? A 3 pin will fit into a 4 pin. The 4th pin is just used for fan control. They are quiet, I use them in another no name miner... Maybe RPM is not enough? Cheap enough to try....

Cooler Master SickleFlow 120
69.69 CFM
2000 RPM
$7.50 each

I agree with you that the standard fans are noisy, but others disagree, as this is a very subjective issue and not everyone is sensitive to sound at particular frequencies.  You will know what your own ears tell you!

To replace them, you will need to buy PWM 4 pin fans.  I would suggest a high static pressure fan on the inlet and a high airflow flan on the outlet.  I have tried various makes of replacement fan, most of them quieter than the standard ones, but my best results were with a Corsair SP120 High Performance 120mm fan on the inlet, which is designed to push air through heat sinks, and Thermalright TY143 140mm PWM on the outlet, which is a 140mm fan with a 120mm mounting.  I have also experimented with 140mm fans on 120-140 adaptors, but I haven't found one that gave me cooler temps than the 120mm Corsair.

With the Corsair and Thermalright combination, the S3s are much quieter to my ears, but they do run a degree or two hotter - not enough to be an issue for me, but if it worries you, stick with the standard fans, which are very good at what they do!

I would be wary of any Heath-Robinson type solution, with fans blowing onto the naked blades, as you won't get any airflow between them that way, so might get hotspots, etc.