Hi chip temps on s9?

[ChineseSavior]

I am pushing 99 ? Is this normal? Worried. Its fairly well vented but could be better

[philipma1957]

I am pushing 99 ? Is this normal? Worried. Its fairly well vented but could be better

best guesses are under 102-104 okay

over 110 bad.


this is based on a chip designer's opinion :

 NotSoFuzzyWarm

and the spec sheet gives 125 max at junction

and I am doing this from stuff read in posts here and my not so perfect memory.

[cryptotore]

I am pushing 99 ? Is this normal? Worried. Its fairly well vented but could be better

I'd say its normal.

Here's a screen from my S9:


During day time it pushes 107C.

PS: I do have a dust-filter in the front, that restricts the airflow some.

Edit:
You can see that the hottest board is the one producing the most HW errors..

[philipma1957]

I am pushing 99 ? Is this normal? Worried. Its fairly well vented but could be better

I'd say its normal.

Here's a screen from my S9:


During day time it pushes 107C.

PS: I do have a dust-filter in the front, that restricts the airflow some.

Edit:
You can see that the hottest board is the one producing the most HW errors..

I would change freq to 593 .

What is your fan setting? 85% manual?

[cryptotore]

I am pushing 99 ? Is this normal? Worried. Its fairly well vented but could be better

I'd say its normal.

Here's a screen from my S9:


During day time it pushes 107C.

PS: I do have a dust-filter in the front, that restricts the airflow some.

Edit:
You can see that the hottest board is the one producing the most HW errors..

I would change freq to 593 .

What is your fan setting? 85% manual?

Thanks, I'll probably do that. I've actually been running it at 593 since I got it, because of high summer temps, just recently put it back at 600 because the ambient temps dropped a little. Looking forward for winter time! ^^

The fan is set at auto!

[Xircom]

I would say its insane Temps for the long run. Mine are running at a max temp 85-90. Stock Clock.

[wmabern]

If my chip temps get above 96-97, I down-clock the miner until the summer days temps drop in the evening and I can run full speed.

I don't know if the higher temps 98-100+ are bad, they just "seem" too hot for my comfort level. Maybe I'm being too cautious. I would love to run them higher if that was OK, but I have not seen any real input on what is OK until today.

Right now the highest chip temps on all of my S9's is 97. With numerous boards at 97.
EDIT: And that is with the miners down-clocked to different freq's to match their personality.

[NotFuzzyWarm]

If my chip temps get above 96-97, I down-clock the miner until the summer days temps drop in the evening and I can run full speed.

I don't know if the higher temps 98-100+ are bad, they just "seem" too hot for my comfort level. Maybe I'm being too cautious. I would love to run them higher if that was OK, but I have not seen any real input on what is OK until today.

Right now the highest chip temps on all of my S9's is 97. With numerous boards at 97.
EDIT: And that is with the miners down-clocked to different freq's to match their personality.

Actually, I have to stay by what philipma quoted me as.
btw, I am not a chip designer but do work with applying high power semiconductors a helluva lot... Typical equipment DC supplies exceed 100V >100A. Industrial lasers and all that...

Anywho,if you can stay under 100C chip temp, great. 105ish is a good point for monitoring sw to give a warning and I'd say slow down a bit.
110C is definitely stop/slow down time.

The 125C Absolute Maximum Junction Temp was an extrapolation of what Bitmain has spec'd in their chip data sheets for the s3-s7's. Side note here, Wonder when Bitmain is going to publish the data sheets for BM'87 chips???

Ref p.11 of the Bitmain s9 manual, "The fan speed must be set above 60% to keep the PCB temperature below 80°C,and chip temperature below 115°C."
https://bitmaintech.com/files/download/AntMiner%20S9%20Installation%20Guide.pdf

In and of itself, high PCB temps pretty much only affect caps and they are rated at >125C. The maximum die (chip) temps as-spec'd by the mfgr are the critical ones to never exceed. If BMT says 115C so be it.

Seems the biggest thing re: chip temps is what speed/temp gives the lowest error rate. For mine that seems to be in the high 90's.

[philipma1957]

If my chip temps get above 96-97, I down-clock the miner until the summer days temps drop in the evening and I can run full speed.

I don't know if the higher temps 98-100+ are bad, they just "seem" too hot for my comfort level. Maybe I'm being too cautious. I would love to run them higher if that was OK, but I have not seen any real input on what is OK until today.

Right now the highest chip temps on all of my S9's is 97. With numerous boards at 97.
EDIT: And that is with the miners down-clocked to different freq's to match their personality.

Actually, I have to stay by what philipma quoted me as.
btw, I am not a chip designer but do work with applying high power semiconductors a helluva lot... Typical equipment DC supplies exceed 100V >100A. Industrial lasers and all that...

Anywho,if you can stay under 100C chip temp, great. 105ish is a good point for monitoring sw to give a warning and I'd say slow down a bit.
110C is definitely stop/slow down time.

The 125C Absolute Maximum Junction Temp was an extrapolation of what Bitmain has spec'd in their chip data sheets for the s3-s7's. Side note here, Wonder when Bitmain is going to publish the data sheets for BM'87 chips???

Ref p.11 of the Bitmain s9 manual, "The fan speed must be set above 60% to keep the PCB temperature below 80°C,and chip temperature below 115°C."
https://bitmaintech.com/files/download/AntMiner%20S9%20Installation%20Guide.pdf

In and of itself, high PCB temps pretty much only affect caps and they are rated at >125C. The maximum die (chip) temps as-spec'd by the mfgr are the critical ones to never exceed. If BMT says 115C so be it.

Seems the biggest thing re: chip temps is what speed/temp gives the lowest error rate. For mine that seems to be in the high 90's.

we are going up to 102c during this heat wave for a few hours a day.  then down to 94 c at night.

so far so good.
 
4 of  5 s-9's are clocked to 600 one is clocked to 575  all fans at 85%

[wmabern]

Great information.
Maybe I will stop being so paranoid about going into the high 90'c for chip temp. That will put an end to so much down-clocking during the daytime heat to keep them below 97.

This weekend is supposed to be a scorcher for much of the southern USA. Luckily, I'm in the mountains so our temps this weekend are only supposed to be around 90 F. Nice and cool compared to some places. LOL

My S9's love the nighttime temps and the chip temps are all in the low to mid 80's right now. With a low of 77 on one board.

Yeah, can't wait for fall temperatures.

[flameruk]

This is my only S9 (slowly upgrading from S7's) running for three days in a fully air conditioned server room.
Ambient is maintained at 18 Deg within the server room.
Miner is on top of the rack cabinet and has plenty of space.

I was worried about chip temps even in a cooled room!

[flameruk]

Just a side note.
I was worried about the high error rate on my third chain.
Looking at the other posted stats on here, it appears everyones 3rd chain runs with high errors.

Any ideas why??

[philipma1957]

Just a side note.
I was worried about the high error rate on my third chain.
Looking at the other posted stats on here, it appears everyones 3rd chain runs with high errors.

Any ideas why??

your error rate is 0.0002%

it is not high and that chain on all units has more errors due to the heat sink design.

try to not use the actual error count   to determine   high errors.

 a 0.0002%  is good..

the actual numbers do not mean so much due to the really high hashrate

you have 1176 errors  if all were exactly as bad as the third chain you would have 2931 errors

so 2931/1176  x 0.0002% = 0.0005%  error rate for the 'bad chain'

so 0.0005%  is perfectly fine  as are your temps  of 60-- 90   so your room is 18c  really cold 64.4 f

how are your fans set?  automatic  or %

try setting fans at 65% manual  and  see what temps you get 

then try 70% manual  and see what temps you get

then try 75% manual and see what temps you get

then try 80% manual and see what temps you get

then try 85% manual and  see what temps you get

lastly try 90% manual and see what temps you get.

[flameruk]

Just a side note.
I was worried about the high error rate on my third chain.
Looking at the other posted stats on here, it appears everyones 3rd chain runs with high errors.

Any ideas why??

your error rate is 0.0002%

it is not high and that chain on all units has more errors due to the heat sink design.

try to not use the actual error count   to determine   high errors.

 a 0.0002%  is good..

the actual numbers do not mean so much due to the really high hashrate

you have 1176 errors  if all were exactly as bad as the third chain you would have 2931 errors

so 2931/1176  x 0.0002% = 0.0005%  error rate for the 'bad chain'

so 0.0005%  is perfectly fine  as are your temps  of 60-- 90   so your room is 18c  really cold 64.4 f

how are your fans set?  automatic  or %

try setting fans at 65% manual  and  see what temps you get 

then try 70% manual  and see what temps you get

then try 75% manual and see what temps you get

then try 80% manual and see what temps you get

then try 85% manual and  see what temps you get

lastly try 90% manual and see what temps you get.

Just left the fans to Auto.
Ill adjust the fan speeds as you suggested.
I left them auto as I did this with the S7's.
I read some place the Antminers prefer to be a little "hot" rather than cold.

Ill post the results maybe tomorrow, going to take a while to run them for say half hour each.

Thanks for the advice on the errors, as you stated the % is way small so no issue to worry about.

Thanks for the reply!

[philipma1957]

Just a side note.
I was worried about the high error rate on my third chain.
Looking at the other posted stats on here, it appears everyones 3rd chain runs with high errors.

Any ideas why??

your error rate is 0.0002%

it is not high and that chain on all units has more errors due to the heat sink design.

try to not use the actual error count   to determine   high errors.

 a 0.0002%  is good..

the actual numbers do not mean so much due to the really high hashrate

you have 1176 errors  if all were exactly as bad as the third chain you would have 2931 errors

so 2931/1176  x 0.0002% = 0.0005%  error rate for the 'bad chain'

so 0.0005%  is perfectly fine  as are your temps  of 60-- 90   so your room is 18c  really cold 64.4 f

how are your fans set?  automatic  or %

try setting fans at 65% manual  and  see what temps you get 

then try 70% manual  and see what temps you get

then try 75% manual and see what temps you get

then try 80% manual and see what temps you get

then try 85% manual and  see what temps you get

lastly try 90% manual and see what temps you get.

Just left the fans to Auto.
Ill adjust the fan speeds as you suggested.
I left them auto as I did this with the S7's.
I read some place the Antminers prefer to be a little "hot" rather than cold.

Ill post the results maybe tomorrow, going to take a while to run them for say half hour each.

Thanks for the advice on the errors, as you stated the % is way small so no issue to worry about.

Thanks for the reply!

I am interested in cold room fan speeds.

My area is pushing 100f due to heat room.

Fans on 85 and 90 percent.

Power fans blow air on and pull air out with my setup.

But in the fall the room will drop to 50 f
Yeah I am interested in what the gear does in a cold room.

My area will not become cold until the fall.

[flameruk]

Just a side note.
I was worried about the high error rate on my third chain.
Looking at the other posted stats on here, it appears everyones 3rd chain runs with high errors.

Any ideas why??

your error rate is 0.0002%

it is not high and that chain on all units has more errors due to the heat sink design.

try to not use the actual error count   to determine   high errors.

 a 0.0002%  is good..

the actual numbers do not mean so much due to the really high hashrate

you have 1176 errors  if all were exactly as bad as the third chain you would have 2931 errors

so 2931/1176  x 0.0002% = 0.0005%  error rate for the 'bad chain'

so 0.0005%  is perfectly fine  as are your temps  of 60-- 90   so your room is 18c  really cold 64.4 f

how are your fans set?  automatic  or %

try setting fans at 65% manual  and  see what temps you get  

then try 70% manual  and see what temps you get

then try 75% manual and see what temps you get

then try 80% manual and see what temps you get

then try 85% manual and  see what temps you get

lastly try 90% manual and see what temps you get.

Just left the fans to Auto.
Ill adjust the fan speeds as you suggested.
I left them auto as I did this with the S7's.
I read some place the Antminers prefer to be a little "hot" rather than cold.

Ill post the results maybe tomorrow, going to take a while to run them for say half hour each.

Thanks for the advice on the errors, as you stated the % is way small so no issue to worry about.

Thanks for the reply!

I am interested in cold room fan speeds.

My area is pushing 100f due to heat room.

Fans on 85 and 90 percent.

Power fans blow air on and pull air out with my setup.

But in the fall the room will drop to 50 f
Yeah I am interested in what the gear does in a cold room.

My area will not become cold until the fall.

Sorry folks been one of those days but :-

I adjusted the S9 to 95% fan speed this morning before I went out.
Server room AC is set at 18 Deg C.
Uptime 11hrs 21 Mins
Chain 1 22 HW Errors 54 Degree Board, 86 Deg Chips
Chain 3 13 HW Errors 55 Degree Board, 87 Deg Chips
Chain 4 253 HW Errors 56 Degree Board, 88 Deg Chips
GH/s Av 12,990.22
HW Error rate is low at 0.0001%

I spent an hour this morning adjusting the fan speed for 15 min intervals.
Adjusting the fan speed between 75% and 95% only shows a slight difference in chip temps and board temps (maybe 3 to 4 degree difference).
I noted that the average hash speed comes down ever so slightly with each drop but I assume 15 mins was not enough time to take an accurate reading.
I also noted that hardware errors are much lower at 95% fan speed.
Im probably just going to leave the fan speed at 95% as I think the cooler I keep the unit the longer life it may have.
No idea on noise as its in the server room at work and Im at home today.

EDIT
Just 288 hardware errors over all three hash cards now since early this morning (11hrs 21 mins).

[Xircom]

The S9 are all over the moon. All mine are in same server room with same temps and they all measure different temps.
It's hard to say what is best, but all my 12,93TH miners are performing well, besides 1 that had a dead board DOA.
2 miners are down, but that's because of the 2800 Watt IBM PSU and breakout boards. I'm running 2 x S9 on 1 IBM PSU.

Correction I have 4 S9 that is down...... They do not perform very well with the IBM PSU and Breakout board. I think I have to downclock or get some 2980 Watt Blade center PSU`s instead.
The Reported temps are good and the Chip temps are at 80-90 degrees.

 

EDIT**** Turned out to be the fuse of 10 amps. Changed fuses to 16 Amps and now the 2880Watt PSU`s works with 2 x S9 miners. Temps on the PCB is all over the place, but chip temp is still 80-90 degrees MAX.

[fusion0389]

I have three S9's, they all run comfortably under 100 except for one... This one has a hash board that runs at least ten degrees higher than any of the other hash boards... Thought it was a little odd, i had to under clock it two steps to get the temps under 100.

[Xircom]

I have three S9's, they all run comfortably under 100 except for one... This one has a hash board that runs at least ten degrees higher than any of the other hash boards... Thought it was a little odd, i had to under clock it two steps to get the temps under 100.

Sounds like you have one or several alu cooling finns thats not glued perfectly. It's a easy repair and you are able to buy cooling glue with good sepcs cheap on e-bay. Just remember to let them sit for at least 24 hours before you raise the hash board vertical for installation in the miner. Just remember to be careful or let someone with PC skills do it for you. I think I did see some guides on YouTube.

[Xircom]

And Now Patrik from Awesome miner did it, so S9 temps are visible as well