Quote from: Shazam!!! on March 25, 2018, 04:12:40 PM

Quote from: gaud on March 25, 2018, 03:44:05 PM

Quote from: Shazam!!! on March 25, 2018, 02:46:47 PM

Quote from: Apprentice on March 25, 2018, 02:25:26 PM

Hello community experts

Need to get your advise on something.

did any of you tried connecting 2 S9s to one 5" exhaust? I am running out of space and need to "combine exhausts".

I am using a 1.5m length 5" ducting for each S9 and it appears to me from the airflow at the end of that 5" ducting can support more air flow as it is not that strong.
my S9 fans are mostly running at 4280 rpm. Ropm temp is 18C.

Thanks.

I believe if you run both into a single 5in, you will see a rise in your board temps. You will increase your fans "static pressure",
which in turn, lowers the cfm. However, if you increase the size of the single pipe to 8in or at best 10in, the cfm should be
tolerable for good board temps.

u could also run a extra exit fan at end off the pipe to draw the heat away from the machine\

True, but that fan would have to be around 8000 rpm, to relieve the static pressure of the 2x4280 fans.

if of same size and same blade design yep min of 8k would suggest shooting for 10 though. surprised ppl keep getting more machines online though the profit non existent now for those who have to pay fer electricity assuming the machine life of 2 years.