S5 and heat - page 2. | Bitcointalksearch.org

RichBC

hero member

Activity: 588

Merit: 500

Quote from: sobe-it on January 31, 2016, 02:36:37 PM

Get the s3+ heat sinks if you want the best temps and lowest sound output, they help alot. My s5 boards are usually the same temp or one of them is +/- 2 degrees. Stock heat sinks the temps are all over the place.

On one s5 I have the s3+ heat sinks, better thermal compound, 2 fans on it and clock it at 337.5. It still pulls 1,100+ Ghs at a little less wattage and runs a tad cooler, at the time of writing this the boards are 44/45C with the fans locked at 40% in 70F ambient. I can run the fans slower and get the temps up to 60-65 and it will be about s3 loud. 3100 RPM current fan speed

My other stock s5 right next to it has the common s1/s3/s5 style heat sinks and the temps are 65/49 with the fans running how it wants (3600+ RPM) at 337.5 clock. It still pulls 1,100+ but if I clock it higher the temps go up as well as the fan speed. If I slow the fan speed at this clock the s5 will run hotter. So at this point to get this miner quieter I will have to underclock it more to get the temps and fan speed in an acceptable range.

Idk if every s3+ came with the heat sinks I have on mine but they look something like this.....

Very interesting I had always assumed that there was nothing to choose between the one piece heatsinks and the it would be the fan(s) and airflow that would make the biggest difference? That said I always did like the look of the nice rectangular heatsink on the S3+

Rich

CrashBitz

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Activity: 48

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Quote from: VirosaGITS on January 31, 2016, 05:10:34 PM

Quote from: CrashBitz on January 31, 2016, 05:05:25 PM

Quote from: sobe-it on January 31, 2016, 02:36:37 PM

On one s5 I have the s3+ heat sinks, better thermal compound, 2 fans on it and clock it at 337.5. It still pulls 1,100+ Ghs at a little less wattage and runs a tad cooler, at the time of writing this the boards are 44/45C with the fans locked at 40% in 70F ambient. I can run the fans slower and get the temps up to 60-65 and it will be about s3 loud. 3100 RPM current fan speed

Given a choice between replacing heatsinks and adding another fan, i think the additional fan sounds easier.
How do you attach a second fan? at the opposite end to the original I'm assuming to 'pull' rather than 'push' the air.
How do you supply power? is it able to be 'plugged' into the S5 controller board?

Replacing heatsinks, with the associated detaching of the originals, the adhesive etc...water cooling then becomes an option, as the complicated/tricky bit of attaching the 'sinks seems to be the same.

Crash

EDIT: Meanwhile, i'll drop the frequency to 337.5 and see how things go.

You add the fan the same way the first one is in, correct, just to pull or push instead of push or pull to keep the airflow going. So both fan will have the same orientation. There are two 4 pin fan connectors so you just plug it right in.

Thanks Virosa, I'll give this a try.

Crash

VirosaGITS

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Activity: 1302

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Quote from: CrashBitz on January 31, 2016, 05:05:25 PM

Quote from: sobe-it on January 31, 2016, 02:36:37 PM

On one s5 I have the s3+ heat sinks, better thermal compound, 2 fans on it and clock it at 337.5. It still pulls 1,100+ Ghs at a little less wattage and runs a tad cooler, at the time of writing this the boards are 44/45C with the fans locked at 40% in 70F ambient. I can run the fans slower and get the temps up to 60-65 and it will be about s3 loud. 3100 RPM current fan speed

Given a choice between replacing heatsinks and adding another fan, i think the additional fan sounds easier.
How do you attach a second fan? at the opposite end to the original I'm assuming to 'pull' rather than 'push' the air.
How do you supply power? is it able to be 'plugged' into the S5 controller board?

Replacing heatsinks, with the associated detaching of the originals, the adhesive etc...water cooling then becomes an option, as the complicated/tricky bit of attaching the 'sinks seems to be the same.

Crash

EDIT: Meanwhile, i'll drop the frequency to 337.5 and see how things go.

You add the fan the same way the first one is in, correct, just to pull or push instead of push or pull to keep the airflow going. So both fan will have the same orientation. There are two 4 pin fan connectors so you just plug it right in.

CrashBitz

newbie

Activity: 48

Merit: 0

Quote from: sobe-it on January 31, 2016, 02:36:37 PM

On one s5 I have the s3+ heat sinks, better thermal compound, 2 fans on it and clock it at 337.5. It still pulls 1,100+ Ghs at a little less wattage and runs a tad cooler, at the time of writing this the boards are 44/45C with the fans locked at 40% in 70F ambient. I can run the fans slower and get the temps up to 60-65 and it will be about s3 loud. 3100 RPM current fan speed

Given a choice between replacing heatsinks and adding another fan, i think the additional fan sounds easier.
How do you attach a second fan? at the opposite end to the original I'm assuming to 'pull' rather than 'push' the air.
How do you supply power? is it able to be 'plugged' into the S5 controller board?

Replacing heatsinks, with the associated detaching of the originals, the adhesive etc...water cooling then becomes an option, as the complicated/tricky bit of attaching the 'sinks seems to be the same.

Crash

EDIT: Meanwhile, i'll drop the frequency to 337.5 and see how things go.

sobe-it

sr. member

Activity: 453

Merit: 250

Get the s3+ heat sinks if you want the best temps and lowest sound output, they help alot. My s5 boards are usually the same temp or one of them is +/- 2 degrees. Stock heat sinks the temps are all over the place.

On one s5 I have the s3+ heat sinks, better thermal compound, 2 fans on it and clock it at 337.5. It still pulls 1,100+ Ghs at a little less wattage and runs a tad cooler, at the time of writing this the boards are 44/45C with the fans locked at 40% in 70F ambient. I can run the fans slower and get the temps up to 60-65 and it will be about s3 loud. 3100 RPM current fan speed

My other stock s5 right next to it has the common s1/s3/s5 style heat sinks and the temps are 65/49 with the fans running how it wants (3600+ RPM) at 337.5 clock. It still pulls 1,100+ but if I clock it higher the temps go up as well as the fan speed. If I slow the fan speed at this clock the s5 will run hotter. So at this point to get this miner quieter I will have to underclock it more to get the temps and fan speed in an acceptable range.

Idk if every s3+ came with the heat sinks I have on mine but they look something like this.....

VirosaGITS

legendary

Activity: 1302

Merit: 1068

Quote from: CrashBitz on January 31, 2016, 05:11:10 AM

Quote from: RichBC on January 31, 2016, 04:32:58 AM

Quote from: CrashBitz on January 30, 2016, 09:54:39 PM

So I have my first mining rig up and running, working hard and doing better than 'advertised': One S5 averaging just on 1200Gh/s.
I have a question on temperature though. The S5 seems to be running quite hot at 65-70 degrees C. It hasn't gotten to the cut-out of 80C yet, but I'm interested in options to reduce the heat, and what effect the heat has on efficiency.

Unfortunately due to the noise, the miner is under the house, which is not secure, and so in a locked box bolted to the wall. There seems to be plenty of vents, and I have an extra exhaust fan on the box, also I have removed the plastic sides of the S5.
Crash

You should not remove the plastic sides, they are needed to direct the air over the back of the circuit board. I would also be suspicious of the size & number of vents in the Box. Have you tested the miner out of the Box to see how much the box adding to the overall temperature?

Rich

Before placing in the box, the miner was operating at 50-55, so there is an increase in temperature; not that it was cool in the first place.
Removing the sides has lowered the temp from 70-75 down to 60-70 (61&66 right now) so it has helped.
Probably would need the sides if I had a stack of the miners right next to each other though.

Crash

The problem i had with doing that myself is that i had cooler air blowing on the sensor, so the temps showed way lower. But the temp sensor is not the chips temp, its just a sensor on the board, so while it showed 50C, the chips at the end were over 80C.

So if you can, double check that this is not happening to you.

CrashBitz

newbie

Activity: 48

Merit: 0

Quote from: RichBC on January 31, 2016, 04:32:58 AM

Quote from: CrashBitz on January 30, 2016, 09:54:39 PM

So I have my first mining rig up and running, working hard and doing better than 'advertised': One S5 averaging just on 1200Gh/s.
I have a question on temperature though. The S5 seems to be running quite hot at 65-70 degrees C. It hasn't gotten to the cut-out of 80C yet, but I'm interested in options to reduce the heat, and what effect the heat has on efficiency.

Unfortunately due to the noise, the miner is under the house, which is not secure, and so in a locked box bolted to the wall. There seems to be plenty of vents, and I have an extra exhaust fan on the box, also I have removed the plastic sides of the S5.
Crash

You should not remove the plastic sides, they are needed to direct the air over the back of the circuit board. I would also be suspicious of the size & number of vents in the Box. Have you tested the miner out of the Box to see how much the box adding to the overall temperature?

Rich

Before placing in the box, the miner was operating at 50-55, so there is an increase in temperature; not that it was cool in the first place.
Removing the sides has lowered the temp from 70-75 down to 60-70 (61&66 right now) so it has helped.
Probably would need the sides if I had a stack of the miners right next to each other though.

Crash

RichBC

hero member

Activity: 588

Merit: 500

Quote from: CrashBitz on January 30, 2016, 09:54:39 PM

G'day,

So I have my first mining rig up and running, working hard and doing better than 'advertised': One S5 averaging just on 1200Gh/s.

Loving the new topic to learn more and more about, but just a hobby for me.

I have a question on temperature though. The S5 seems to be running quite hot at 65-70 degrees C. It hasn't gotten to the cut-out of 80C yet, but I'm interested in options to reduce the heat, and what effect the heat has on efficiency.

Unfortunately due to the noise, the miner is under the house, which is not secure, and so in a locked box bolted to the wall. There seems to be plenty of vents, and I have an extra exhaust fan on the box, also I have removed the plastic sides of the S5.

Is water cooling a realistic option?
When (if) I get a second rig, the heat will become a real issue to resolve.

Thanks for any advice

Crash

You should not remove the plastic sides, they are needed to direct the air over the back of the circuit board. I would also be suspicious of the size & number of vents in the Box. Have you tested the miner out of the Box to see how much the box adding to the overall temperature?

Rich

VirosaGITS

legendary

Activity: 1302

Merit: 1068

Quote from: CrashBitz on January 30, 2016, 09:54:39 PM

G'day,

So I have my first mining rig up and running, working hard and doing better than 'advertised': One S5 averaging just on 1200Gh/s.

Loving the new topic to learn more and more about, but just a hobby for me.

I have a question on temperature though. The S5 seems to be running quite hot at 65-70 degrees C. It hasn't gotten to the cut-out of 80C yet, but I'm interested in options to reduce the heat, and what effect the heat has on efficiency.

Unfortunately due to the noise, the miner is under the house, which is not secure, and so in a locked box bolted to the wall. There seems to be plenty of vents, and I have an extra exhaust fan on the box, also I have removed the plastic sides of the S5.

Is water cooling a realistic option?
When (if) I get a second rig, the heat will become a real issue to resolve.

Thanks for any advice

Crash

Yeah, you need air flow, you can't just dump a miner in a closed environment. Get a cheap acoustic panel, build a tunnel around it, open the window, or dump the heat outside or something. Some people use those vinyl tubes to dumb the heat outside or into their central house heating.

And water cooling a S5 is possible but its not worth it considering it does not return that much BTC anymore.

CrashBitz

newbie

Activity: 48

Merit: 0

G'day,

So I have my first mining rig up and running, working hard and doing better than 'advertised': One S5 averaging just on 1200Gh/s.

Loving the new topic to learn more and more about, but just a hobby for me.

I have a question on temperature though. The S5 seems to be running quite hot at 65-70 degrees C. It hasn't gotten to the cut-out of 80C yet, but I'm interested in options to reduce the heat, and what effect the heat has on efficiency.

Unfortunately due to the noise, the miner is under the house, which is not secure, and so in a locked box bolted to the wall. There seems to be plenty of vents, and I have an extra exhaust fan on the box, also I have removed the plastic sides of the S5.

Is water cooling a realistic option?
When (if) I get a second rig, the heat will become a real issue to resolve.

Thanks for any advice

Crash

Topic: S5 and heat - page 2. (Read 1750 times)