Topic: New one fan S7 (Read 9695 times)
I was going to add another fan.
The second picture has all the info on the fan.
It is a delta 3.9 amp
It is a delta 3.9 amp
I can confirm that you can just add a second fan onto the F1 and it will run just fine. I have done it to 18 of my F1s and it controls the fan and reads rpm properly.
On a side note, you do not need to go the ghetto zip tie route to hold the fan on. If you are taking the plate off and voiding the warranty already you just need to get some of those short fat 120mm fan pc mounting screws (we got ours off of old cointerra fans) and screw them in from the backside. You can only fit 3 of the 4 screws but it is totally stable with no wonky zip ties preventing everything mounting 100% flush
On a side note, you do not need to go the ghetto zip tie route to hold the fan on. If you are taking the plate off and voiding the warranty already you just need to get some of those short fat 120mm fan pc mounting screws (we got ours off of old cointerra fans) and screw them in from the backside. You can only fit 3 of the 4 screws but it is totally stable with no wonky zip ties preventing everything mounting 100% flush
what fan are you using?
I can confirm that you can just add a second fan onto the F1 and it will run just fine. I have done it to 18 of my F1s and it controls the fan and reads rpm properly.
On a side note, you do not need to go the ghetto zip tie route to hold the fan on. If you are taking the plate off and voiding the warranty already you just need to get some of those short fat 120mm fan pc mounting screws (we got ours off of old cointerra fans) and screw them in from the backside. You can only fit 3 of the 4 screws but it is totally stable with no wonky zip ties preventing everything mounting 100% flush
*saving space removed pic
On a side note, you do not need to go the ghetto zip tie route to hold the fan on. If you are taking the plate off and voiding the warranty already you just need to get some of those short fat 120mm fan pc mounting screws (we got ours off of old cointerra fans) and screw them in from the backside. You can only fit 3 of the 4 screws but it is totally stable with no wonky zip ties preventing everything mounting 100% flush
*saving space removed pic
It should work fine with another fan on it. I am testing "stock" right now but plan on trying a second eventually. So that is in "store" to do. But so far the one fan seems to work fine. It is higher RPM and I have not experienced problems let it running on auto with speed.
I can confirm that you can just add a second fan onto the F1 and it will run just fine. I have done it to 18 of my F1s and it controls the fan and reads rpm properly.
On a side note, you do not need to go the ghetto zip tie route to hold the fan on. If you are taking the plate off and voiding the warranty already you just need to get some of those short fat 120mm fan pc mounting screws (we got ours off of old cointerra fans) and screw them in from the backside. You can only fit 3 of the 4 screws but it is totally stable with no wonky zip ties preventing everything mounting 100% flush
On a side note, you do not need to go the ghetto zip tie route to hold the fan on. If you are taking the plate off and voiding the warranty already you just need to get some of those short fat 120mm fan pc mounting screws (we got ours off of old cointerra fans) and screw them in from the backside. You can only fit 3 of the 4 screws but it is totally stable with no wonky zip ties preventing everything mounting 100% flush
i have played with various BB boards on my S7 and the most recent 2 fan firmware works fine on my 1 fan S7.
so long as there is one fan reporting some sort of functionality you're golden.
so long as there is one fan reporting some sort of functionality you're golden.
I believe the one fan firmware only applies to batch 16. If I am not mistaken, the 2 fan firmware can be used for all other batches, but specifically for those that choose to add the second fan to batch 16.
Does anyone know the difference between the "1 fan" and "2 fans" firmware that you can download from their site? It looks like you can just put a second fan on the 1 fan model, it spins at the right rpm.
I let the miner run for 24 hrs before powering down and switching over the kilo-watt meter. Right now the 3rd psu that powers the first hash board and controller board is pullin 462 at the wall. My S7 F1 appears to be using 1339 watts at the wall with 3 750 gold thermaltakes.
Temperatures have went down with ambient temps directly above machine of 80 F, I have 55, 57, 58 with fan @ 5280. Nothing has changed other than a cooler day so inside temps of garage didn't climb. The sound level I think is much better and even though my temps appear in the good, I will probably down clock next and try to find that happy place.
Oh, the longer the machine ran, the better the gh/s got. Before reboot and changing meter I was up to 4715 gh/s (avg) @ 700 with .0006 error %
Temperatures have went down with ambient temps directly above machine of 80 F, I have 55, 57, 58 with fan @ 5280. Nothing has changed other than a cooler day so inside temps of garage didn't climb. The sound level I think is much better and even though my temps appear in the good, I will probably down clock next and try to find that happy place.
Oh, the longer the machine ran, the better the gh/s got. Before reboot and changing meter I was up to 4715 gh/s (avg) @ 700 with .0006 error %
I am using 3 750 gold thermaltakes, on two circuits, but I only have one kilo-watt meter. The outlet my meter is in now has two PSU's each powering 1 hash board and reading 877 so two of the 3 boards are 438.5 per unit at the wall. I assume the third is drawing a bit more since it is also powering the control board, i'll take that measurement tomorrow. The form letter packaged inside with the miner said to expect 440 per board so I am using just north of 1300 watts at the wall.
Just under 6 hours temps are about same, 58, 60,61. 139 HW errors (.0006) 4709.82 gh/s (700 clock) diff 16.4 K
Just under 6 hours temps are about same, 58, 60,61. 139 HW errors (.0006) 4709.82 gh/s (700 clock) diff 16.4 K
legendary
Activity: 1848
Merit: 1165
My AR-15 ID's itself as a toaster. Want breakfast?
Up and running. Out of the box, factory settings (700) my temps are 57,59,60 fan is 5640 rpm. 4689.35 gh/s It has been running for 30 minutes, and have had 14 hw errors (.0007). Pool difficulty just went to 32.8 K from 16.4 K. I don't know what difficulty is good setting to run at pool side, but i'll jump around over the weekend and find which one it is happiest?
I set this one fan S7 just like my S5 with a small box fan blowing air directly at the front of miner about a foot away. The miner is running in a closed off garage, but open to the main house. Out side temp is 77 F with an ambient temp of 87 F in the garage. House is 78 F ambient and fan is blowing the cooler air at front of S7.
I don't have a meter to measure db, but it sounds at least as loud as my S5. I will look into flexible ducting to sound proof.
I set this one fan S7 just like my S5 with a small box fan blowing air directly at the front of miner about a foot away. The miner is running in a closed off garage, but open to the main house. Out side temp is 77 F with an ambient temp of 87 F in the garage. House is 78 F ambient and fan is blowing the cooler air at front of S7.
I don't have a meter to measure db, but it sounds at least as loud as my S5. I will look into flexible ducting to sound proof.
if you can get a kill-a-watt meter on the miner, it would be nice to compare wattage draw to the two fan models. I doubt much difference, but worth a look.
Up and running. Out of the box, factory settings (700) my temps are 57,59,60 fan is 5640 rpm. 4689.35 gh/s It has been running for 30 minutes, and have had 14 hw errors (.0007). Pool difficulty just went to 32.8 K from 16.4 K. I don't know what difficulty is good setting to run at pool side, but i'll jump around over the weekend and find which one it is happiest?
I set this one fan S7 just like my S5 with a small box fan blowing air directly at the front of miner about a foot away. The miner is running in a closed off garage, but open to the main house. Out side temp is 77 F with an ambient temp of 87 F in the garage. House is 78 F ambient and fan is blowing the cooler air at front of S7.
I don't have a meter to measure db, but it sounds at least as loud as my S5. I will look into flexible ducting to sound proof.
I set this one fan S7 just like my S5 with a small box fan blowing air directly at the front of miner about a foot away. The miner is running in a closed off garage, but open to the main house. Out side temp is 77 F with an ambient temp of 87 F in the garage. House is 78 F ambient and fan is blowing the cooler air at front of S7.
I don't have a meter to measure db, but it sounds at least as loud as my S5. I will look into flexible ducting to sound proof.
legendary
Activity: 1848
Merit: 1165
My AR-15 ID's itself as a toaster. Want breakfast?
I personally like a fan on the exhaust side because I can duct it out to a roof vent..... It would be my preferrable position, but forming pressure inside the box instead of taking pressure away; is more efficient for cooling (air density rules IMHO)
oddly this current sale run has two fans again....
Thats not a bad thing. From personal experience the 1 fan units have more issues than the 2 fan units by far. Out of 36 test units we have had 3 show bad chips and one go into nuclear meltdown in the first two weeks of having them. Meanwhile the 2 fan S7s i run just sit in their corner and hash away happily.
legendary
Activity: 1848
Merit: 1165
My AR-15 ID's itself as a toaster. Want breakfast?
oddly this current sale run has two fans again....
finally, received tracking number and unit has been shipped.
I've read in the main thread about orders that don't show up correctly, but as long as it's confirmed in the block chain everything is good to go? I ordered on the 4th, now it's the 11th just wondering if it is typical for orders to take longer than the "ships within 5 days" to ever show shipped. My status has showed, since the order was confirmed, as paid, unshipped, expired. now it shows paid unshipped valid. That is the extent of content on bitmains order page other than general information such as order id, pay address, price time created. Im just wondering when I might expect this batch 16 miner to arrive. It does suck that the batch 17 has 2 fans, maybe i'll get a coupon to order the upgrade, if it does become available.
found a coupon and ordered the one fan s7. I was going to get the back up fan as well as second fan and back plate, but shipping was ridiculous for the add on. I'll post some temps once it comes in for the benefit for fellow Midwestern hobby miners. 
Thanks KeezAZA, that is exactly the comparison I was looking to hear. I am now confident with ability to work way up to stock settings I also can keep temps in comfortable range. I think I have my bases covered, power, temp control next, I'll have to find a couplon then order from bitmain. That puts me at ease, I think a s7 f1 will be a good fit and finally upgrade to a new machine. Thanks again for info.
You welcome.
Happy mining!
Thanks KeezAZA, that is exactly the comparison I was looking to hear. I am now confident with ability to work way up to stock settings I also can keep temps in comfortable range. I think I have my bases covered, power, temp control next, I'll have to find a couplon then order from bitmain. That puts me at ease, I think a s7 f1 will be a good fit and finally upgrade to a new machine. Thanks again for info.
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