4500 rpm (two fans) were producing incredible noise at >=72dB.
I wonder how 6k rpm fan sounds like?
I wonder how 6k rpm fan sounds like?
Noise 64 dB(A)
http://www.digikey.com/product-detail/en/delta-electronics/QFR1212GHE-SP01/603-1165-ND/1850534
Topic: New one fan S7 - page 4. (Read 9869 times)
Noise 64 dB(A)
http://www.digikey.com/product-detail/en/delta-electronics/QFR1212GHE-SP01/603-1165-ND/1850534
Rumour has it that Bitmain is planning on releasing S7-F0 model for the next batch.
How often do they release new batches?
his comment of an s7-f0 is a joke. saying that the current version (16) is the s7-f1 (one fan unit) with the s7-f0 (being 0 fans).
but as far as batches. they seem to have a new batch lately every 2-3 weeks. Seems to be every production run is a new batch. ie they have 1000 made and thats 1 batch. then another 1000 and thats another batch.
Thanks for the clarification. I totally fell for it.
Rumour has it that Bitmain is planning on releasing S7-F0 model for the next batch.
How often do they release new batches?
his comment of an s7-f0 is a joke. saying that the current version (16) is the s7-f1 (one fan unit) with the s7-f0 (being 0 fans).
but as far as batches. they seem to have a new batch lately every 2-3 weeks. Seems to be every production run is a new batch. ie they have 1000 made and thats 1 batch. then another 1000 and thats another batch.
Rumour has it that Bitmain is planning on releasing S7-F0 model for the next batch.
Any word on the specs? How often do they release new batches?
by removing plaque which replaces the fan.
the holes may be below.
Let 's hope it is the same case.
the holes may be below.
Let 's hope it is the same case.
looks like they just replaced the back plate of the unit which had the screw mounts for the fan with the new grating as it is using the same mounting holes as the previous backing plate (right in the corners)
Then adding the Sanyo ace that I supplied for the last avalon6 group buy should fix the issue.
you wont be able to mount it with screws but i think small zip ties would work to mount the fan to the grate.
Rumour has it that Bitmain is planning on releasing S7-F0 model for the next batch.
by removing plaque which replaces the fan.
the holes may be below.
Let 's hope it is the same case.
the holes may be below.
Let 's hope it is the same case.
looks like they just replaced the back plate of the unit which had the screw mounts for the fan with the new grating as it is using the same mounting holes as the previous backing plate (right in the corners)
Then adding the Sanyo ace that I supplied for the last avalon6 group buy should fix the issue.
by removing plaque which replaces the fan.
the holes may be below.
Let 's hope it is the same case.
the holes may be below.
Let 's hope it is the same case.
looks like they just replaced the back plate of the unit which had the screw mounts for the fan with the new grating as it is using the same mounting holes as the previous backing plate (right in the corners)
Probably about like a couple SP10.
Avalon6 does well with 1 fan, but it's also about 30% less heat. The S7 (current design) has quite a bit more solidity of the airflow path, which means constriction, which means more pressure needed to move enough air through to adequately pull heat away. If they've worked it out to where one fan can do it without bursting into flames, that's great. But what's the practical upperbound for intake air temperature?
yeah, the summer is coming fast...
this fan is supposed to be 6000rpm vs 4500 for the two fan ones.
4500 rpm (two fans) were producing incredible noise at >=72dB.
I wonder how 6k rpm fan sounds like?
@ mtmining2
try fan speeds 65 to 70% was top speed on batch 1 to batch 15
so
clock the gear to freq 500 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
clock the gear to freq 525 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
see how high you can go with freq and keep temps under 65 c
see what you need to get fan to do 5500 rpm as this new delta rates 6000 rpm
buying this to think you will certainly do freq 700 is foolish
adding a second fan looks like a project but possible.
@ generalt finally tested the 2 gpus will send a pm
Won't you lose significant hashing power by dropping the frequency to 500. Thus reducing bitcoin profit?
Yes but finding safe numbers to not burn the miner is more important
wrong no place to screw it in = fact
you will need to figure a way out on how to attach it.
@ mtmining2
try fan speeds 65 to 70% was top speed on batch 1 to batch 15
so
clock the gear to freq 500 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
clock the gear to freq 525 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
see how high you can go with freq and keep temps under 65 c
see what you need to get fan to do 5500 rpm as this new delta rates 6000 rpm
buying this to think you will certainly do freq 700 is foolish
adding a second fan looks like a project but possible.
@ generalt finally tested the 2 gpus will send a pm
Won't you lose significant hashing power by dropping the frequency to 500. Thus reducing bitcoin profit?
Yes but finding safe numbers to not burn the miner is more important
@ mtmining2
try fan speeds 65 to 70% was top speed on batch 1 to batch 15
so
clock the gear to freq 500 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
clock the gear to freq 525 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
see how high you can go with freq and keep temps under 65 c
see what you need to get fan to do 5500 rpm as this new delta rates 6000 rpm
buying this to think you will certainly do freq 700 is foolish
adding a second fan looks like a project but possible.
@ generalt finally tested the 2 gpus will send a pm
Won't you lose significant hashing power by dropping the frequency to 500. Thus reducing bitcoin profit?
Yes but finding safe numbers to not burn the miner is more important
@ mtmining2
try fan speeds 65 to 70% was top speed on batch 1 to batch 15
so
clock the gear to freq 500 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
clock the gear to freq 525 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
see how high you can go with freq and keep temps under 65 c
see what you need to get fan to do 5500 rpm as this new delta rates 6000 rpm
buying this to think you will certainly do freq 700 is foolish
adding a second fan looks like a project but possible.
@ generalt finally tested the 2 gpus will send a pm
Won't you lose significant hashing power by dropping the frequency to 500. Thus reducing bitcoin profit?
hmm.. my S5 is still kicking. S1 died so was thing of using that that fan.
I shall wait and see how this S7-F1 performs in ZA temps.
I shall wait and see how this S7-F1 performs in ZA temps.
@philipma1957 That's the plan. Will start it out at ~500 and whatever % ends up being top speed for the fan and then work the freq up from there.
I have pretty decent ventilation in the garage so it doesn't get too hot but we will see. Also may have to wait a bit for a real "stress test" as the temps here aren't supposed to be over 60 F for the next week or so.
Now, if it won't do 700 then I may rig another fan to it... I have a few spares now so what the heck...
I have pretty decent ventilation in the garage so it doesn't get too hot but we will see. Also may have to wait a bit for a real "stress test" as the temps here aren't supposed to be over 60 F for the next week or so.
Now, if it won't do 700 then I may rig another fan to it... I have a few spares now so what the heck...
@ mtmining2
try fan speeds 65 to 70% was top speed on batch 1 to batch 15
so
clock the gear to freq 500 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
clock the gear to freq 525 fans to 70% check temps under 65 c fan rpms about 5500 and errors less then 0.0100
see how high you can go with freq and keep temps under 65 c
see what you need to get fan to do 5500 rpm as this new delta rates 6000 rpm
buying this to think you will certainly do freq 700 is foolish
adding a second fan looks like a project but possible.
@ generalt finally tested the 2 gpus will send a pm
Just got my shipment notification so I will let you all know how it is. Should be here Thursday or Friday. It will be running in my garage here in North Carolina so it should be a decent stress test.
It doesn't look like it has the screw holes to mount a second fan on the rear. I guess it doesn't have to be mounted or you could just tape it or zip tie it there.
Would a S1 fan add any value to the cooling process?
No, but an S4/S5 would.
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