Topic: S-5 review. It has arrived some info is in! - page 13. (Read 19866 times)
try running the included fan at 5V without PWM. The noise is managable (slightly louder than s3, but about 30% of the 12V volume), and the board temperatures should be about 54C in cold air or 63C in a warm room. Its still not something for a living room, but a basement or spare bedroom would likely contain the majority of noise
So at full clock with stock fan this is best set in a garage? Is it feasible with fan mod at full clock for living room? 
it is a little too loud to run at full speed in my living room with the 2x silverstone fan mod.
but I don't have enough fans to play with.
the right fan combo will let you run this at 300 freq if you are in the room. maybe a little more.
then in 2 minutes switch to freq 350 if you leave the room.
the built-in PWM settings are pretty high. I think if you use a cooler air intake you could run 90cfm fans and as long as the temps are <60C you should be just fine. Im running the stock fan on 7V w/o PWM (approx 3000RPM) and overclocking with -5C intake air and 54-56C temps
I have a spare bed room I am going to open the window to allow for colder air. I will then try higher clocks.
It is running at freq 362 and doing 1193 gh temps are 66/67 but i am only 5 minutes into the test run
So at full clock with stock fan this is best set in a garage? Is it feasible with fan mod at full clock for living room?
it is a little too loud to run at full speed in my living room with the 2x silverstone fan mod.
but I don't have enough fans to play with.
the right fan combo will let you run this at 300 freq if you are in the room. maybe a little more.
then in 2 minutes switch to freq 350 if you leave the room.
the built-in PWM settings are pretty high. I think if you use a cooler air intake you could run 90cfm fans and as long as the temps are <60C you should be just fine. Im running the stock fan on 7V w/o PWM (approx 3000RPM) and overclocking with -5C intake air and 54-56C temps
So at full clock with stock fan this is best set in a garage? Is it feasible with fan mod at full clock for living room?
it is a little too loud to run at full speed in my living room with the 2x silverstone fan mod.
but I don't have enough fans to play with.
the right fan combo will let you run this at 300 freq if you are in the room. maybe a little more.
then in 2 minutes switch to freq 350 if you leave the room.
I'm curious, does anyone have a sidewinder they can test with this unit?
http://www.sidewindercomputers.com/df12gf.html
http://www.sidewindercomputers.com/df12gf.html
nice fan, but i think the noise problem is an issue with the PWM settings. allowing th eboards to have a higher temperature setpoint would help a lot.
53C & 3850RPM at stock is a lot of noise, but i think up to 58C would be acceptable
39C & 3000RPM at 225MHz is silly though. the fan should drop to 2500RPM or less and let the temps idle closer to 50C.
Im running off -3C intake and the fan is approx 3000RPM at 7V with 375MHz speeds and <54C (using PWM drives the fan to 3950rpm and the temps only go down 3-5C)
yeah the stock fan has poor temp control. I dropped the unit down to 250 and still was spinning at over 3600 rpm
If I want to clock low I can have a pretty much silent miner
this gives dead quiet. now if I had a 10 volt power supply the 417 watts over 823 gh would be really good.
So at full clock with stock fan this is best set in a garage? Is it feasible with fan mod at full clock for living room?
I'm curious, does anyone have a sidewinder they can test with this unit?
http://www.sidewindercomputers.com/df12gf.html
http://www.sidewindercomputers.com/df12gf.html
nice fan, but i think the noise problem is an issue with the PWM settings. allowing th eboards to have a higher temperature setpoint would help a lot.
53C & 3850RPM at stock is a lot of noise, but i think up to 58C would be acceptable
39C & 3000RPM at 225MHz is silly though. the fan should drop to 2500RPM or less and let the temps idle closer to 50C.
Im running off -3C intake and the fan is approx 3000RPM at 7V with 375MHz speeds and <54C (using PWM drives the fan to 3950rpm and the temps only go down 3-5C)
I'm curious, does anyone have a sidewinder they can test with this unit?
http://www.sidewindercomputers.com/df12gf.html
http://www.sidewindercomputers.com/df12gf.html
Hum!!! Great info for under clocked condition. Thank you for the status page screenshot.
Picture is good
Picture is good
I'd suggest these inexpensive network cables like this without the boot (connector sleeve) if you're going to use the Silverstone fan up front, better than removing so much from the fan frame.
http://www.amazon.com/gp/product/B00E5I7VJQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
http://www.amazon.com/gp/product/B00E5I7VJQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
yeah they do not quite fit but you could sand the shrould on the silverstone rather then clip it.
At mr teal alas no o-scope.
but the two silverstones run at 60 db in a room that is 55 db due to 7 sp20 fans near by in the garage and in the guest bedroom.
My upper end was freq 356 which did 1202 gh at 585-599watts on the kwatt meter.
So it goes a tiny bit beyond specs.
bitmain specs are :
freq 350
hash 1155 gh
watts 590
my best specs are
freq 356
hash 1202
watts 585-599 at the kwatt meter
I did this with an evga 1300 g2
when I went to freq 362 I got a row of x's
my next test will be to lower freq to 300 and set the 2 silverstones to low.
this will be a very quiet setting if it cools the unit off.
after 10 minutes I get this
sound is pleasant you could watch tv or run this in an office. I could sleep with the noise this makes.
watts are 492-497 and hash at 1013
temps look too high will drop it to freq 293
I'd suggest these inexpensive network cables like this without the boot (connector sleeve) if you're going to use the Silverstone fan up front, better than removing so much from the fan frame.
http://www.amazon.com/gp/product/B00E5I7VJQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
http://www.amazon.com/gp/product/B00E5I7VJQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Phil, do you happen to have an oscilloscope that can do FFT? It'd be interesting to do a spectral decomposition of the noise from the SP20, S5 and Silverstone fans.
that would be awesome because some anti-noise setup would be theoretically possible.
http://en.wikipedia.org/wiki/Active_noise_control
For those who want to mod, the delta fan on ebay is $11.51+6.11 shipping, so ~$18
Noctua $24.5, silverstone $16.99 (both at Amazon), but they don't have silverstone in stock (I did not get immediate shipping confirm).
I think that noctua, silverstone and delta all could be used as push (with some clipping of silverstone as phil has done-to fit in the ethernet connection).
However, I wonder what would be the best choice of a pull fan?
This fan provides up to 76.8 CFM (is this enough?):
http://www.amazon.com/Cooler-Master-Blade-120-Radiators/dp/B0030DL37I
If 76.8 CFM is not enough for a pull fan, then what would be? Silverstone is ~170CFM-possible overkill for a pull fan?
thanks
Noctua $24.5, silverstone $16.99 (both at Amazon), but they don't have silverstone in stock (I did not get immediate shipping confirm).
I think that noctua, silverstone and delta all could be used as push (with some clipping of silverstone as phil has done-to fit in the ethernet connection).
However, I wonder what would be the best choice of a pull fan?
This fan provides up to 76.8 CFM (is this enough?):
http://www.amazon.com/Cooler-Master-Blade-120-Radiators/dp/B0030DL37I
If 76.8 CFM is not enough for a pull fan, then what would be? Silverstone is ~170CFM-possible overkill for a pull fan?
thanks
Phil, do you happen to have an oscilloscope that can do FFT? It'd be interesting to do a spectral decomposition of the noise from the SP20, S5 and Silverstone fans.
Phil, what fan speed on the SP20E matches the noise of an S5?
philipma1957, are the Two silverstone fans on the high performance mode or quiet mode?
high setting as quiet is not cool enough . here is how I fit the second fan
I use a nail clipper to remove a little of the fan shroud
then plug in the ethernet cord which seals the hole most air goes into the
heatsink since the cord sealed the shroud cut
Philipma,
Do you know where the cgminer conf file is? I can't find it anywhere - seems to be a different file system to Bitmains usual setup. I want to change the --queue setting, it's set at 8192!!
Cheers.
Hello：Do you know where the cgminer conf file is? I can't find it anywhere - seems to be a different file system to Bitmains usual setup. I want to change the --queue setting, it's set at 8192!!
Cheers.
You can modify 'user_setting' file in /config directory to change --queue setting.
Yes! Excellent - thank you
Can you also tell me if your cgminer fork is set to submit stales or not? If not, can I add the option in the same config file as where the queue setting is?
P2pool can use stale shares to find good blocks, so is throwing away good shares if cgminer is not submitting them.
Thanks again.
philipma1957, are the Two silverstone fans on the high performance mode or quiet mode?
when you replace the stock fan with the silverstone you go from a PWN fan to a fan with tach only? so the silverstone fans go full speed all the time?
what is the CFM of the silverstone? Volts and amp rating?
I say this because bitmain uses off the shelf chinese brand server fans. If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.
what is the CFM of the silverstone? Volts and amp rating?
I say this because bitmain uses off the shelf chinese brand server fans. If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.
no the silverstone is 4 pin pwm it is the pull fan.
I will order this as the push
http://www.amazon.com/gp/product/B00KFCRATC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
these two as push pull should work
I am not sure I understand: do you suggest Noctua as a push and Silverstone as pull? Why not two Noctuas (one as push, another as pull)?
Also, would I need to clip a wire on any of them?
In addition, what is that Delta 3pin everybody is talking about? I look at ebay-there are many different variants.
Thanks, much obliged.
Well I know the noctua fits on the push side under the ethernet jack. the silverstone is a combo 120/140 mm fan and only fits on one side.
I had the silverstone in house I know it is a good powerful quiet 4 pin pwm fan. this is why I use it.
I will look for a ebay link on the 3 pin delta
http://www.ebay.com/itm/Delta-AFB1212VHE-120mm-x-38mm-Very-High-Speed-Fan-3-Pin-Connector-148-CFM-NEW-/121150995989?pt=US_Computer_Case_Fans&hash=item1c35297e15
Thanks, Phil. I am trying to price in various options. The delta fan is ~$18 with shipping (ebay), noctua (also for push) is $24.5, but the fan looks awesome.
i found another good pull fan (1500 pwm): also Noctua ($18.99) on Amazon
http://www.amazon.com/Bearing-Cooling-NF-P14r-redux-1500-PWM/dp/B00KF7QO2G
I see the advantage there in size-Silverstone is 140/120, so although it has 120mm spaced holes, it will stick out (that's why is covers the ethernet port, i assume)
Two Noctuas together $43.5 with free shipping since it is above $35 (or prime).
I got the second silverstone to fit I used a nail clipper to remove a little bit of the shroud and it fits under the ethernet jack. I am boosted to freq 356 and getting 1202gh using about 595 watts still under .5 watts per gh. but 2 silverstones cost me 34.52 with tax and shipping from amazon.
a 35 dollar mod is not cheap. but the meter reads 60-61 db and a lower pitch. temps are okay and hw's are 0 at 30 minutes.
I think the silverstones won't keep up with freq's much higher then 356 . those noctua 1500 pwm's do not move enough air for this machine.
the two silverstones are giving me good sound not nasty and temps are still kind of okay my room is 80 f / 28c board temps temps are 62 c to 67c
when you replace the stock fan with the silverstone you go from a PWN fan to a fan with tach only? so the silverstone fans go full speed all the time?
what is the CFM of the silverstone? Volts and amp rating?
I say this because bitmain uses off the shelf chinese brand server fans. If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.
what is the CFM of the silverstone? Volts and amp rating?
I say this because bitmain uses off the shelf chinese brand server fans. If you use delta or nidec brand fans, you will see a huge boost in cfm with minimal noise increase at stock speeds or better yet, you can slow down those (delta, nidec) fans and have minimal noise and decent cfm.
no the silverstone is 4 pin pwm it is the pull fan.
I will order this as the push
http://www.amazon.com/gp/product/B00KFCRATC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
these two as push pull should work
I am not sure I understand: do you suggest Noctua as a push and Silverstone as pull? Why not two Noctuas (one as push, another as pull)?
Also, would I need to clip a wire on any of them?
In addition, what is that Delta 3pin everybody is talking about? I look at ebay-there are many different variants.
Thanks, much obliged.
Well I know the noctua fits on the push side under the ethernet jack. the silverstone is a combo 120/140 mm fan and only fits on one side.
I had the silverstone in house I know it is a good powerful quiet 4 pin pwm fan. this is why I use it.
I will look for a ebay link on the 3 pin delta
http://www.ebay.com/itm/Delta-AFB1212VHE-120mm-x-38mm-Very-High-Speed-Fan-3-Pin-Connector-148-CFM-NEW-/121150995989?pt=US_Computer_Case_Fans&hash=item1c35297e15
Thanks, Phil. I am trying to price in various options. The delta fan is ~$18 with shipping (ebay), noctua (also for push) is $24.5, but the fan looks awesome.
i found another good pull fan (1500 pwm): also Noctua ($18.99) on Amazon
http://www.amazon.com/Bearing-Cooling-NF-P14r-redux-1500-PWM/dp/B00KF7QO2G
I see the advantage there in size-Silverstone is 140/120, so although it has 120mm spaced holes, it will stick out (that's why is covers the ethernet port, i assume)
Two Noctuas together $43.5 with free shipping since it is above $35 (or prime).
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