My second ZEC + XMR+ ETH thread builds info links thoughts and photos.

[ps_jb]

i haven't researched more about humidity but i think humidity or water in the air helps GPUs to transfer more heat to the air just like how water in the radiator helps transfer heat from the car engine to the radiator..

Man - you are going to the right direction. Next stop is cooling with hydrogen gas - best industrial coolant

[QuintLeo]

running mining rigs makes the air in my mining room drier than the rest of the house, the water i spilled on the floor evaporated quickly, it is quicker to dry clothes in my mining room compared in drying them outside, and a portion of the room becomes cooler when clothes are being dried. I defrost stake in more or less 5 mins   ...those observations for me makes me think that swamp cooling here is feasible..i may enjoy the cooler climate now but i know what summer will bring to my mining room

i have no way of measuring humidity here but based from my observations above, a constant pump of water to the cooling pads or columns of towels(custom made   ) and a fan would make a difference here.

i haven't researched more about humidity but i think humidity or water in the air helps GPUs to transfer more heat to the air just like how water in the radiator helps transfer heat from the car engine to the radiator..

 Humidity level of the air as such has insignificant effect on heat transfer from a heatsink to air.

 Your mining room "gets drier" because air can hold more moisture as it gets warmer, so the "relative humidity" drops even if the actual amount of moisture in the air per CC stays the same.


 drying clothes acts as an impromptu evaporative cooler.

 What area are you in?

[arielbit]

running mining rigs makes the air in my mining room drier than the rest of the house, the water i spilled on the floor evaporated quickly, it is quicker to dry clothes in my mining room compared in drying them outside, and a portion of the room becomes cooler when clothes are being dried. I defrost stake in more or less 5 mins   ...those observations for me makes me think that swamp cooling here is feasible..i may enjoy the cooler climate now but i know what summer will bring to my mining room

i have no way of measuring humidity here but based from my observations above, a constant pump of water to the cooling pads or columns of towels(custom made   ) and a fan would make a difference here.

i haven't researched more about humidity but i think humidity or water in the air helps GPUs to transfer more heat to the air just like how water in the radiator helps transfer heat from the car engine to the radiator..

 Humidity level of the air as such has insignificant effect on heat transfer from a heatsink to air.

 Your mining room "gets drier" because air can hold more moisture as it gets warmer, so the "relative humidity" drops even if the actual amount of moisture in the air per CC stays the same.


 drying clothes acts as an impromptu evaporative cooler.

 What area are you in?

i'm in south east asia.

Theres another factor..the water tank, i'm thinking at least 155 liters or more, the water that goes into the mining room and goes down to the dirty kitchen serves as a conduit of heat to the tank (warm water goes back to the tank in loop)...the water will serve as a heat sink too.

Maybe during hotter hours or days i can try to bypass the floater and let the cool tap water trickle, excess water will flow directly to the drain.

[vg54dett]

According to current profitability, I guess most of you guys are now mining Eth (except for the rigs that need to get lower power consumption, where zec can still be interesting).
What pool do you use nowadays ?
Is ethermine still a good choice, with fair payouts ?
Many of use noticed their new zec pool, flypool, was not very fair ...

[citronick]

According to current profitability, I guess most of you guys are now mining Eth (except for the rigs that need to get lower power consumption, where zec can still be interesting).
What pool do you use nowadays ?
Is ethermine still a good choice, with fair payouts ?
Many of use noticed their new zec pool, flypool, was not very fair ...

I will stick to ZEC for awhile more, since mining this power consumption and temps down.

While ETH with CDM 7.4 at ETH mining only - power consumption and temps too high for my comfort.

I am contemplating ZEC to XMR, and last resort back to ETH.

XMR mining with Claymore's Cryptonite miner behaves the same as ZEC, so will continue to enjoy the power savings and lower temps.

With all the speed in latest CZM v9... I am sure Claymore now can leverage what he learnt in ZEC and apply to XMR because both are memory intensive algos. With that.... looking forward to another roller coaster ride with XMR turbo fast and furious journey with Claymore. I hope he will continue to improve his XMR miner.

[AmDD]

According to current profitability, I guess most of you guys are now mining Eth (except for the rigs that need to get lower power consumption, where zec can still be interesting).
What pool do you use nowadays ?
Is ethermine still a good choice, with fair payouts ?
Many of use noticed their new zec pool, flypool, was not very fair ...

It depends for me...

I have a number of 2GB cards that cant mine Eth anymore so they are still on ZEC. I have some 7950's (3gb) and while they can mine ETH I get more profit from ZEC so thats where they are. The few rigs I have with 4GB cards are on ETH.

[QuintLeo]

 What area are you in?

i'm in south east asia.

 I'm supprised it's dry enough where you're at for evaporative effects to be noticeable at all.


 I'm mostly all-in on ETH now - my dual 280x rig is still ZEC 'cause it's a tossup either way, and the older HD7750/HD78x0 cards with 2GB or less are ZEC 'cause they can't mine ETH.



 XMR is WAY far down on profitability on every comparison I'v ever done. THe only thing I have running XMR is my older XP-based gaming machines 'cause it's the only thing I CAN run on the GTX 750 Ti in that machine - but the pools I've tried seem to only like giving me about half of my hashrate no matter what I try, and the payout thresholds are crazy high.



 Claymore v9 seems to be VERY iffy - everything I've tried it on is NOTHING BUT REJECTS when it runs at all, and quite a few other folks reporting it don't work well if at all.

[arielbit]

 What area are you in?

i'm in south east asia.

 I'm supprised it's dry enough where you're at for evaporative effects to be noticeable at all.


 I'm mostly all-in on ETH now - my dual 280x rig is still ZEC 'cause it's a tossup either way, and the older HD7750/HD78x0 cards with 2GB or less are ZEC 'cause they can't mine ETH.



 XMR is WAY far down on profitability on every comparison I'v ever done. THe only thing I have running XMR is my older XP-based gaming machines 'cause it's the only thing I CAN run on the GTX 750 Ti in that machine - but the pools I've tried seem to only like giving me about half of my hashrate no matter what I try, and the payout thresholds are crazy high.



 Claymore v9 seems to be VERY iffy - everything I've tried it on is NOTHING BUT REJECTS when it runs at all, and quite a few other folks reporting it don't work well if at all.

well not all countries are uniform in their respective climates, there are locations where there could be different temp, humidity etc..being near a forest, a river, the winds blows from the east, the altitude etc... Evap cooler fans are being sold here btw.

My rigs are stable at claymore v9, after the release of v9 i was able to mine with -i 8 and -i 7 but the miner experienced restarts after 24 hrs or less of mining (using -r 1)..so today i lowered it to -i 6 ......but that's only for my 280x rigs, the rest are fine

[citronick]

 What area are you in?

i'm in south east asia.

 I'm supprised it's dry enough where you're at for evaporative effects to be noticeable at all.


 I'm mostly all-in on ETH now - my dual 280x rig is still ZEC 'cause it's a tossup either way, and the older HD7750/HD78x0 cards with 2GB or less are ZEC 'cause they can't mine ETH.



 XMR is WAY far down on profitability on every comparison I'v ever done. THe only thing I have running XMR is my older XP-based gaming machines 'cause it's the only thing I CAN run on the GTX 750 Ti in that machine - but the pools I've tried seem to only like giving me about half of my hashrate no matter what I try, and the payout thresholds are crazy high.



 Claymore v9 seems to be VERY iffy - everything I've tried it on is NOTHING BUT REJECTS when it runs at all, and quite a few other folks reporting it don't work well if at all.

well not all countries are uniform in their respective climates, there are locations where there could be different temp, humidity etc..being near a forest, a river, the winds blows from the east, the altitude etc... Evap cooler fans are being sold here btw.

My rigs are stable at claymore v9, after the release of v9 i was able to mine with -i 8 and -i 7 but the miner experienced restarts after 24 hrs or less of mining (using -r 1)..so today i lowered it to -i 6 ......but that's only for my 280x rigs, the rest are fine

there is also this power spiking issue that Claymore needs to fix - I have reverted back to v8 for some rigs but most rigs are OK with i=5 and i=6

I will be posting some pix soon as soon as I get the blower re-positioned, etc.

[arielbit]

 What area are you in?

i'm in south east asia.

 I'm supprised it's dry enough where you're at for evaporative effects to be noticeable at all.


 I'm mostly all-in on ETH now - my dual 280x rig is still ZEC 'cause it's a tossup either way, and the older HD7750/HD78x0 cards with 2GB or less are ZEC 'cause they can't mine ETH.



 XMR is WAY far down on profitability on every comparison I'v ever done. THe only thing I have running XMR is my older XP-based gaming machines 'cause it's the only thing I CAN run on the GTX 750 Ti in that machine - but the pools I've tried seem to only like giving me about half of my hashrate no matter what I try, and the payout thresholds are crazy high.



 Claymore v9 seems to be VERY iffy - everything I've tried it on is NOTHING BUT REJECTS when it runs at all, and quite a few other folks reporting it don't work well if at all.

well not all countries are uniform in their respective climates, there are locations where there could be different temp, humidity etc..being near a forest, a river, the winds blows from the east, the altitude etc... Evap cooler fans are being sold here btw.

My rigs are stable at claymore v9, after the release of v9 i was able to mine with -i 8 and -i 7 but the miner experienced restarts after 24 hrs or less of mining (using -r 1)..so today i lowered it to -i 6 ......but that's only for my 280x rigs, the rest are fine

there is also this power spiking issue that Claymore needs to fix - I have reverted back to v8 for some rigs but most rigs are OK with i=5 and i=6

I will be posting some pix soon as soon as I get the blower re-positioned, etc.

one of my 280x rig is not happy even with -i 6 ... i'm lowering clocks and returned to -i 8.. will share my results later.

my other rigs are fine even with -i 8 maybe because my PSUs have allowance in power draw even if i switch to scrypt mining (notorious for maxing out cards power draw).

[GabryRox]

yup, i have read way to many posts about the problems with C9 so will be holding off on updating for now.  I suspect Claymore will be able to fix or at least mitigate the power spike issues that seem to be causing most of the problems. Doesn't seem worth that hassle and probable down-time for my small operation, so will see what happens in the next few days.

[citronick]

my other rigs are fine even with -i 8 maybe because my PSUs have allowance in power draw even if i switch to scrypt mining (notorious for maxing out cards power draw).

Arielbit.... you use your GPU to mine Scrypt? 

[arielbit]

my other rigs are fine even with -i 8 maybe because my PSUs have allowance in power draw even if i switch to scrypt mining (notorious for maxing out cards power draw).

Arielbit.... you use your GPU to mine Scrypt?  

no, i'm only mentioning scrypt here because i like to point out that scrypt mining (as i experienced back in 2013-2014) is my standard in budgeting PSU power to GPUs today.

Even 480s are budgeted to me at 2x card per 750w..i know it uses less power than 280x's but it just made my psu more efficient..(if you look at the efficiency curve of a psu) anyway if claymore updates his miner for more power and more hash, my psu's are ready

update:

my 280x rig stabilized when i downclock my 390 in there to 1110 core from 1130 at -i 8, funny while my 4x 390 rig is fine at 1130 core -i 8 since v9 was launched...my other 280x rig is fine at -i 7

[citronick]

Sorry for off topic but SOS to all gurus out there - I dont want to drive 30mins to the warehouse...

one of rigs R390 x 5, screen went black, after upgrading to Claymore's v9 ZEC miner.....

from my remote terminal at the warehouse I could VNC into it, network is alive not dead.... but screen is black!

Sending Ctrl-Alt_Del command via VNC is fruitless since screen is black and I cant see anything...

How do I issue an RPC command line to reboot the PC in the same network?

The only remote access app running on that PC is VNC.

Any ideas? maybe a netuse command

Wish I have the SRR installed ....

[Yassarsian]

 What area are you in?

i'm in south east asia.

 I'm supprised it's dry enough where you're at for evaporative effects to be noticeable at all.


 I'm mostly all-in on ETH now - my dual 280x rig is still ZEC 'cause it's a tossup either way, and the older HD7750/HD78x0 cards with 2GB or less are ZEC 'cause they can't mine ETH.



 XMR is WAY far down on profitability on every comparison I'v ever done. THe only thing I have running XMR is my older XP-based gaming machines 'cause it's the only thing I CAN run on the GTX 750 Ti in that machine - but the pools I've tried seem to only like giving me about half of my hashrate no matter what I try, and the payout thresholds are crazy high.



 Claymore v9 seems to be VERY iffy - everything I've tried it on is NOTHING BUT REJECTS when it runs at all, and quite a few other folks reporting it don't work well if at all.

well not all countries are uniform in their respective climates, there are locations where there could be different temp, humidity etc..being near a forest, a river, the winds blows from the east, the altitude etc... Evap cooler fans are being sold here btw.

My rigs are stable at claymore v9, after the release of v9 i was able to mine with -i 8 and -i 7 but the miner experienced restarts after 24 hrs or less of mining (using -r 1)..so today i lowered it to -i 6 ......but that's only for my 280x rigs, the rest are fine

there is also this power spiking issue that Claymore needs to fix - I have reverted back to v8 for some rigs but most rigs are OK with i=5 and i=6

I will be posting some pix soon as soon as I get the blower re-positioned, etc.

I just reduce the voltage and frequency for the AMD R9 Nano. I run them at 920/400MHz instead of 1000/500W.

[AriesIV10]

Claymore's Zcash Miner is Updated to v9.1:

- additional range checks in code for better stability.
- reduced devfee, it's 2% now (72sec instead of 90sec) if you use secure SSL/TLS connection, currently Flypool and Suprnova pools support encrypted connections, see Readme for samples.
- improved "-di detect" option: now after GPU order detection miner starts mining with the detected order.
- added ability to use environment variables in "epools.txt" and "config.txt" files. For example, define "WORKER" environment varibale and use it as "%WORKER%" in config.txt.

[rawbert]

Claymore's Zcash Miner is Updated to v9.1:

- additional range checks in code for better stability.
- reduced devfee, it's 2% now (72sec instead of 90sec) if you use secure SSL/TLS connection, currently Flypool and Suprnova pools support encrypted connections, see Readme for samples.
- improved "-di detect" option: now after GPU order detection miner starts mining with the detected order.
- added ability to use environment variables in "epools.txt" and "config.txt" files. For example, define "WORKER" environment varibale and use it as "%WORKER%" in config.txt.

Make sure to use SSL/TLS in order to get the fee reduction!
- reduced devfee, it's 2% now (72sec instead of 90sec) if you use secure SSL/TLS connection

[Ludwish]

According to current profitability, I guess most of you guys are now mining Eth (except for the rigs that need to get lower power consumption, where zec can still be interesting).
What pool do you use nowadays ?
Is ethermine still a good choice, with fair payouts ?
Many of use noticed their new zec pool, flypool, was not very fair ...

With the 7990 cards and the 7950, I still mine the zcash. But they are very undervolated and under clocked.

[GabryRox]

So, can i ask which pool most of you here are using for ZEC?  I have been on flypool since the start and the payouts are very quick and reliable. However, I am beginning to wonder about what seems like a pretty big hash-rate difference as reported on their dashboard vs what I see directly in Claymore.  My 2 rigs are currently showing 1,050 S/s consistently but my avg hash-rate at flypool is around 960. Not only that, but the range of reported rates is still all over the place on flypool. In the last 5 hours alone, it showed a high of 1130 and a low of 770... all this time both rigs were at full capacity.  I don't have a huge problem with the spikes as long as the average H/R is being recognized correctly, but it seems to be about 10% short.

Is this normal?  Wondering if I should try Dwarfpool or Suprnova as both seem to be getting some love in other threads I've read.

[LoneRangir]

So, can i ask which pool most of you here are using for ZEC?  I have been on flypool since the start and the payouts are very quick and reliable. However, I am beginning to wonder about what seems like a pretty big hash-rate difference as reported on their dashboard vs what I see directly in Claymore.  My 2 rigs are currently showing 1,050 S/s consistently but my avg hash-rate at flypool is around 960. Not only that, but the range of reported rates is still all over the place on flypool. In the last 5 hours alone, it showed a high of 1130 and a low of 770... all this time both rigs were at full capacity.  I don't have a huge problem with the spikes as long as the average H/R is being recognized correctly, but it seems to be about 10% short.

Is this normal?  Wondering if I should try Dwarfpool or Suprnova as both seem to be getting some love in other threads I've read.

I recently switched from flypool to suprvova, since I've seen reports ( probably here ), as a test. It will take a few days to see