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Topic: Z9 list of working pools/Fork updates - page 10. (Read 36818 times)

newbie
Activity: 42
Merit: 0
August 04, 2018, 05:58:32 AM
I'm not an expert. Before this, my chip temps were 72, 69, 72. Fan rpm was 4.2k to 4.3k

now they are 65,64,65 and fan rpm 3.2k rpm

newbie
Activity: 42
Merit: 0
August 04, 2018, 05:55:03 AM

Is it possible that your fan had been set the wrong way from the factory? Can you confirm which direction the air flows now after you switched? And how about sound, did it change in any way (especially the pitch)?

The fan used to suck air in, now its blowing out. Speed is about 1k rpm less.

To avoid confusion, it pushed air in, now it is pulling air out, correct?


correct
member
Activity: 350
Merit: 13
August 04, 2018, 05:07:10 AM
Guys it's pretty fast to just test it. If you won't, I will when I get home.
Some fan designs work better this way.

It works, i am seeing about 5 degree drop in temperature.

Those readings are working against physics and definitely not accurate.


Not necessarily. The difference between the efficacy of push or pull would be determined by the design and layout of chips/hot spots as well, not simply direction.

I have a Z9 mini myself and seen the inside, there is no way for an exhaust fan to be more efficient than an intake fan, placed either side of the Z9 mini.
Pulling air out of Z9 mini is like placing a dense fabric air filter in front of the intake, restricting the airflow and reducing the efficiency.
member
Activity: 434
Merit: 52
August 04, 2018, 04:42:17 AM
I only reversed the airflow


My temps at 750mhz:
Before: 67-71° at 80%
Now: 54-59 at 70%

Is it possible that your fan had been set the wrong way from the factory? Can you confirm which direction the air flows now after you switched? And how about sound, did it change in any way (especially the pitch)?

The fan used to suck air in, now its blowing out. Speed is about 1k rpm less.

To avoid confusion, it pushed air in, now it is pulling air out, correct?
member
Activity: 434
Merit: 52
August 04, 2018, 04:40:48 AM
Guys it's pretty fast to just test it. If you won't, I will when I get home.
Some fan designs work better this way.

It works, i am seeing about 5 degree drop in temperature.

Those readings are working against physics and definitely not accurate.


Not necessarily. The difference between the efficacy of push or pull would be determined by the design and layout of chips/hot spots as well, not simply direction.
newbie
Activity: 42
Merit: 0
August 04, 2018, 04:29:55 AM

Is it possible that your fan had been set the wrong way from the factory? Can you confirm which direction the air flows now after you switched? And how about sound, did it change in any way (especially the pitch)?

The fan used to suck air in, now its blowing out. Speed is about 1k rpm less.
member
Activity: 350
Merit: 13
August 04, 2018, 04:28:52 AM
Guys it's pretty fast to just test it. If you won't, I will when I get home.
Some fan designs work better this way.

It works, i am seeing about 5 degree drop in temperature.

Those readings are working against physics and definitely not accurate.
newbie
Activity: 21
Merit: 0
August 04, 2018, 04:26:07 AM

Is it possible that your fan had been set the wrong way from the factory? Can you confirm which direction the air flows now after you switched? And how about sound, did it change in any way (especially the pitch)?
newbie
Activity: 42
Merit: 0
August 04, 2018, 03:12:03 AM
Guys it's pretty fast to just test it. If you won't, I will when I get home.
Some fan designs work better this way.

It works, i am seeing about 5 degree drop in temperature.
hero member
Activity: 1148
Merit: 562
Blockchain Core Dev
August 04, 2018, 12:54:33 AM
greyday; you can add ZEL to the ones that have forked. They did so a week or two ago, they are now on Zhash.
Done and done. Cheers!

You can add equigems.online too. We have no problem with z9 miners
member
Activity: 434
Merit: 52
August 03, 2018, 10:29:37 PM
greyday; you can add ZEL to the ones that have forked. They did so a week or two ago, they are now on Zhash.

Done and done. Cheers!
member
Activity: 311
Merit: 69
PowerMining.pw
August 03, 2018, 08:03:07 PM
greyday; you can add ZEL to the ones that have forked. They did so a week or two ago, they are now on Zhash.
newbie
Activity: 58
Merit: 0
August 03, 2018, 02:22:35 PM
Guys it's pretty fast to just test it. If you won't, I will when I get home.
Some fan designs work better this way.
newbie
Activity: 16
Merit: 0
August 03, 2018, 01:46:36 PM
I only reversed the airflow
My temps at 750mhz:
Before: 67-71° at 80%
Now: 54-59 at 70%


Lol, what a troll.
There is no fucking way to decrease the temp as you claimed just by reverting the intake fan.
The air flow will be so restricted, I wouldn't be surprise if the Z9 mini reaches the cut off temp.
Agreed that would stop any air from entering the unit.. lol (Anti Cooling measure)

Is it possible that the sensors give incorrect information?
newbie
Activity: 16
Merit: 0
August 03, 2018, 01:11:28 PM
Just try, i'm not a troll, it's the same position, only reverse the fan, the hot air is expelled out
newbie
Activity: 168
Merit: 0
August 03, 2018, 12:32:04 PM
I only reversed the airflow
My temps at 750mhz:
Before: 67-71° at 80%
Now: 54-59 at 70%


Lol, what a troll.
There is no fucking way to decrease the temp as you claimed just by reverting the intake fan.
The air flow will be so restricted, I wouldn't be surprise if the Z9 mini reaches the cut off temp.
Agreed that would stop any air from entering the unit.. lol (Anti Cooling measure)
member
Activity: 350
Merit: 13
August 03, 2018, 11:08:27 AM
I only reversed the airflow
My temps at 750mhz:
Before: 67-71° at 80%
Now: 54-59 at 70%


Lol, what a troll.
There is no fucking way to decrease the temp as you claimed just by reverting the intake fan.
The air flow will be so restricted, I wouldn't be surprise if the Z9 mini reaches the cut off temp.
newbie
Activity: 16
Merit: 0
newbie
Activity: 32
Merit: 0
August 03, 2018, 04:06:50 AM
Sorry for my english, i discovered a thing, i reversed the z9 fan and the temps down by 10°c

reverse the position or just the airflow...ss and photos would be nice
newbie
Activity: 12
Merit: 0
August 03, 2018, 03:58:35 AM
Sorry for my english, i discovered a thing, i reversed the z9 fan and the temps down by 10°c
Sounds promising, is the miner louder now?
And did you reverse the fan by turning the connector around?
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