Do you know with a 750 the miner is slower than 700 ?
when I set up Z9 mini at 700 I get 15.5 Kh/s while at 750 14.5 Kh/s !
Topic: Antminer Z9 mini overclocked - page 9. (Read 26129 times)
https://service.bitmain.com/support/download?product=Antminer%20Z9%20mini
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz
Is it a new firmware form Batch-3? Has anyone tried it? What is about overclocking?
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz
Is it a new firmware form Batch-3? Has anyone tried it? What is about overclocking?
forget it. it cannot be overclocked. neither the SSH / WEB F12 edit mode is working.. stays at 500MHz, so you need the MAY for that. or the AUG 12th..
I don't think so. I currently have 5 z9 minis connected to 2 apw3++ psus on 110v without issue. However the above poster must be using a splitter to connect all 3 to 1 PSU which from what I understand is something you are NOT supposed to do.
Don't think it matters as long as the splitters are good quality and total draw is well within the rated limit. Time will tell though. Will report back if there are any issues.
Hello since i am still newbie i cannot send private message to you. Can you please send me in pm link of that firmware (Filename: Antminer-Z9-Mini-201805262047-500M.tar.gz) , there is none at bitmain page anymore. Thanks in advance!
Here you go - just in case it's the firmware that's locking down overclocking and not the 'silicon lottery'.
https://drive.google.com/open?id=1y3poGmeOpeZuAy4rvfT4uZ1Z7tozjTLx
Cheers!
EDIT: Had inserted the wrong link by mistake initially. Have updated it. Should be working now.
Batch 2 z9 minis checking in.
Both stable at 675
Seeing 16k/sols from one and 15.7 k/sols from the other pool side. Its actually more than what the local console is reporting. Anything over 675 drops boards within 12 hours.
Both stable at 675
Seeing 16k/sols from one and 15.7 k/sols from the other pool side. Its actually more than what the local console is reporting. Anything over 675 drops boards within 12 hours.
Is it dangerous to connect multiple ASICs from one PSU?
OK to drive multiple things from one PSU. (Think of your house - 1 PSU for your whole city)
Don't mix PSUs on a single device.
I have an IBM 2880 watt server PSU and running 4 Minis off of it. Previously running 2x S9's off of it.
Is it dangerous to connect multiple ASICs from one PSU?
Quote
almost every antminer (even older models) has one additional connection. I thought the same but no one did it before. I doubt that bitmain will send you a new board (solo) for 200 usd.
Im sure they will since another user on this forum got one sent to him after he burned out a board, my question is will it work ? Im hoping some one with 2 units can set one up and test it, if it works i will hit up bitmain and say i fried one of my boards due to overclocking and i can order a replacement just like the other user.
the post is some where in this thread
https://bitcointalksearch.org/topic/bitmain-launches-the-z9-equihash-miner-3509006
https://service.bitmain.com/support/download?product=Antminer%20Z9%20mini
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz
Is it a new firmware form Batch-3? Has anyone tried it? What is about overclocking?
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz
Is it a new firmware form Batch-3? Has anyone tried it? What is about overclocking?
it's a new firmware and does not allow OC.
I noticed the control board has a connection for 1 more hash board is it possible to connect a 4th board to the miner? Has anyone tried if it works or dose it need a custom firmware to initialize the 4th board? I was thinking about building its own case for it with 4 boards instead of 3. I read on another thread that some one fried one of their boards and ordered a new hash board for 200 bucks form bitmain. Thoughts?
almost every antminer (even older models) has one additional connection. I thought the same but no one did it before. I doubt that bitmain will send you a new board (solo) for 200 usd.
I noticed the control board has a connection for 1 more hash board is it possible to connect a 4th board to the miner? Has anyone tried if it works or dose it need a custom firmware to initialize the 4th board? I was thinking about building its own case for it with 4 boards instead of 3. I read on another thread that some one fried one of their boards and ordered a new hash board for 200 bucks form bitmain. Thoughts?
https://service.bitmain.com/support/download?product=Antminer%20Z9%20mini
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz
Is it a new firmware form Batch-3? Has anyone tried it? What is about overclocking?
Antminer-Z9-Mini-NAND-500M-201808311812.tar.gz
Is it a new firmware form Batch-3? Has anyone tried it? What is about overclocking?
Now I'm really confused. I've been following this thread for a while and was completely expecting my batch two z9 mini's to underperform compared to batch one. I received two of them on the 10th of September.
But they're not underperforming. They're as good as batch one. Both of them. Both easily clock to 750 and have been averaging 16.5 KSols/s for the last 24+ hours.
In case it benefits anyone in the community, these are the exact steps I took and the results:
I'm wondering if I was just lucky and got two good units but it doesn't seem probable considering the fact that the firmware I received was the one with the "Balanced" option on it. It had no option to overclock.
The only thing I seem to have done (maybe differently) is set fan speed to 100% fixed. Maybe that has something to do with it?
Worth a shot I guess.
EDIT: Forgot to mention - temperatures on all boards are between 65-70 degs with the fans at 100%.
But they're not underperforming. They're as good as batch one. Both of them. Both easily clock to 750 and have been averaging 16.5 KSols/s for the last 24+ hours.
In case it benefits anyone in the community, these are the exact steps I took and the results:
- Changed pool configuration. Set fan speed to 100% fixed.
- Initially tried the F12 trick to overclock the first one. Tried 750 off the bat. Didn't work. As in, the firmware still showed the machine running at 500M.
- Tried editing cgminer.conf directly (after granting it write permissions). Didn't work. The firmware still showed the machine running at 500M.
- Tried 600, 625, 650 with both methods above. Still didn't work. At this point I figured the firmware was locked to 500M. Didn't try 550M. Double checked cgminer.conf. It was correctly saving whatever frequency I put in it but the machine just wouldn't accept it. New firmware? Probably.
- Flashed firmware to one dated may 26th 2018. I had downloaded this from Bitmain way back just as a backup. Filename: Antminer-Z9-Mini-201805262047-500M.tar.gz
- Overclocked to 750M. Works perfectly as mentioned above.
I'm wondering if I was just lucky and got two good units but it doesn't seem probable considering the fact that the firmware I received was the one with the "Balanced" option on it. It had no option to overclock.
The only thing I seem to have done (maybe differently) is set fan speed to 100% fixed. Maybe that has something to do with it?
Worth a shot I guess.
EDIT: Forgot to mention - temperatures on all boards are between 65-70 degs with the fans at 100%.
Hello since i am still newbie i cannot send private message to you. Can you please send me in pm link of that firmware (Filename: Antminer-Z9-Mini-201805262047-500M.tar.gz) , there is none at bitmain page anymore. Thanks in advance!
Looks like you won the silicon lottery, good for you 
. Whats funny is my batch 2 came with the may firmware but wont overclock past 662 stable, I can go for 668 but sometimes after 24-48 hours one of the boards drops off. I tried the fans at 100% and 750mhz but it crashes after a few min. Mine is stable at 662 55% fan setting. What I did was reverse the fan so that it pulls instead of blows and it dropped the temp by 10c and it runs at 50c.
. Whats funny is my batch 2 came with the may firmware but wont overclock past 662 stable, I can go for 668 but sometimes after 24-48 hours one of the boards drops off. I tried the fans at 100% and 750mhz but it crashes after a few min. Mine is stable at 662 55% fan setting. What I did was reverse the fan so that it pulls instead of blows and it dropped the temp by 10c and it runs at 50c.Damn. I was hoping to identify some pattern. Never won a single lottery in my life... my luck sucks that way. Maybe this is a good omen
Looks like you won the silicon lottery, good for you . Whats funny is my batch 2 came with the may firmware but wont overclock past 662 stable, I can go for 668 but sometimes after 24-48 hours one of the boards drops off. I tried the fans at 100% and 750mhz but it crashes after a few min. Mine is stable at 662 55% fan setting. What I did was reverse the fan so that it pulls instead of blows and it dropped the temp by 10c and it runs at 50c.
. Whats funny is my batch 2 came with the may firmware but wont overclock past 662 stable, I can go for 668 but sometimes after 24-48 hours one of the boards drops off. I tried the fans at 100% and 750mhz but it crashes after a few min. Mine is stable at 662 55% fan setting. What I did was reverse the fan so that it pulls instead of blows and it dropped the temp by 10c and it runs at 50c. Is it dangerous to connect multiple ASICs from one PSU?
To the best of my knowledge - No. One S9 consumes about 1400w using the same PSU. Don't think there's any problem connecting three of the Z9 mini's (which consume 1150w total) to a single power supply.
Been working fine for me so far. Will update if there are any problems. TBH I don't see why there should be.
Is it dangerous to connect multiple ASICs from one PSU?
I have a question regarding the Z9 Mini - not sure if this is the right thread but it's the closest I could find.
I'm planning on running 3 Z9 mini's off of a standard 1600w bitmain apw++ power supply running off of a 240v circuit. I plan to overclock all 3 to 750m (consumes about 400-450w each so well within the apw++ limits).
My question is this:
The apw++ has 10 pcie connectors. I need 12 to run 3 z9 mini's. I'm planning on connecting 9 of them directly to the hashing boards of the 3 units and using 2 splitters to split the power of the last pcie connector into 3 - for the 3 control boards.
Splitter I'm planning to use (for reference):
https://www.amazon.ca/StarTech-com-PCIEXSPLIT6-6-Inch-Express-Splitter/dp/B004NNTVT6/ref=sr_1_14?ie=UTF8&qid=1535493571&sr=8-14&keywords=pcie+splitter
This is assuming that the control boards dont take up much power compared to the actual hash boards. Given that, I'm thinking it would be OK to run three control boards off the same pcie connector.
Am I correct in this assumption? Is it safe to do what I am planning to?
Any input much appreciated. Thanks.
I donnt think you will power 3 clocked z9's.. i have 2 z9's clocked on one PSW3++ Firstly i am getting 750 mhz 16.5/17 sols out of one z9 and i can only get 681mhz out of the other 14.7/15.2 sols if i push the second z9 higher i begins high and drops off to zero hash rate.. i am guessing power failure.. but 2 do run nicely off one Bitmain PSU I'm planning on running 3 Z9 mini's off of a standard 1600w bitmain apw++ power supply running off of a 240v circuit. I plan to overclock all 3 to 750m (consumes about 400-450w each so well within the apw++ limits).
My question is this:
The apw++ has 10 pcie connectors. I need 12 to run 3 z9 mini's. I'm planning on connecting 9 of them directly to the hashing boards of the 3 units and using 2 splitters to split the power of the last pcie connector into 3 - for the 3 control boards.
Splitter I'm planning to use (for reference):
https://www.amazon.ca/StarTech-com-PCIEXSPLIT6-6-Inch-Express-Splitter/dp/B004NNTVT6/ref=sr_1_14?ie=UTF8&qid=1535493571&sr=8-14&keywords=pcie+splitter
This is assuming that the control boards dont take up much power compared to the actual hash boards. Given that, I'm thinking it would be OK to run three control boards off the same pcie connector.
Am I correct in this assumption? Is it safe to do what I am planning to?
Any input much appreciated. Thanks.
Pics on my twitter
https://twitter.com/mrtraderman
Including the entire quote above so people know the context. Three Z9 Mini's work perfectly well off of a single Bitmain APW++ power supply running at 240v.
May be a bit of a stretch on a 120v circuit since the APW++ only produces 1200w at 120v. It produces 1600W at 240v as per Bitmain's specs.
Tested how much the control boards consume. Each control board consumes between 35-40w on its own. Three of them are well under 120w total so it's safe to link 3 to a single PCIE connector (rated at 150w) using the splitters mentioned above.
Total power draw from the wall overclocked to 750M and running stable at ~16.5 KSol/s for the last 24 hours is about 1140w
Pic of the setup:
Cheers!
Now I'm really confused. I've been following this thread for a while and was completely expecting my batch two z9 mini's to underperform compared to batch one. I received two of them on the 10th of September.
But they're not underperforming. They're as good as batch one. Both of them. Both easily clock to 750 and have been averaging 16.5 KSols/s for the last 24+ hours.
In case it benefits anyone in the community, these are the exact steps I took and the results:
I'm wondering if I was just lucky and got two good units but it doesn't seem probable considering the fact that the firmware I received was the one with the "Balanced" option on it. It had no option to overclock.
The only thing I seem to have done (maybe differently) is set fan speed to 100% fixed. Maybe that has something to do with it?
Worth a shot I guess.
EDIT: Forgot to mention - temperatures on all boards are between 65-70 degs with the fans at 100%.
But they're not underperforming. They're as good as batch one. Both of them. Both easily clock to 750 and have been averaging 16.5 KSols/s for the last 24+ hours.
In case it benefits anyone in the community, these are the exact steps I took and the results:
- Changed pool configuration. Set fan speed to 100% fixed.
- Initially tried the F12 trick to overclock the first one. Tried 750 off the bat. Didn't work. As in, the firmware still showed the machine running at 500M.
- Tried editing cgminer.conf directly (after granting it write permissions). Didn't work. The firmware still showed the machine running at 500M.
- Tried 600, 625, 650 with both methods above. Still didn't work. At this point I figured the firmware was locked to 500M. Didn't try 550M. Double checked cgminer.conf. It was correctly saving whatever frequency I put in it but the machine just wouldn't accept it. New firmware? Probably.
- Flashed firmware to one dated may 26th 2018. I had downloaded this from Bitmain way back just as a backup. Filename: Antminer-Z9-Mini-201805262047-500M.tar.gz
- Overclocked to 750M. Works perfectly as mentioned above.
I'm wondering if I was just lucky and got two good units but it doesn't seem probable considering the fact that the firmware I received was the one with the "Balanced" option on it. It had no option to overclock.
The only thing I seem to have done (maybe differently) is set fan speed to 100% fixed. Maybe that has something to do with it?
Worth a shot I guess.
EDIT: Forgot to mention - temperatures on all boards are between 65-70 degs with the fans at 100%.
I've played with mine and they seem safe at 650
I tried different settings and i'm not happy with the quality of the miner since its gen2 shippment and not stable like the others at 750. I think the software is junk and also bitmain took the GEN1 firmware off the website, Anyone have a clean version firmware of GEN 1? I'd love to reflash mine. Have been running 600 to 618 and getting all kinds of diffrent speeds. Now I just leave it at 650.. Get these to make some oney back on these hard time mining
I tried different settings and i'm not happy with the quality of the miner since its gen2 shippment and not stable like the others at 750. I think the software is junk and also bitmain took the GEN1 firmware off the website, Anyone have a clean version firmware of GEN 1? I'd love to reflash mine. Have been running 600 to 618 and getting all kinds of diffrent speeds. Now I just leave it at 650.. Get these to make some oney back on these hard time mining
People have tried reflashing with batch 1 firmware. No improvement on hash speed, so it's not a firmware but a hardware limitation.
I've played with mine and they seem safe at 650
I tried different settings and i'm not happy with the quality of the miner since its gen2 shippment and not stable like the others at 750. I think the software is junk and also bitmain took the GEN1 firmware off the website, Anyone have a clean version firmware of GEN 1? I'd love to reflash mine. Have been running 600 to 618 and getting all kinds of diffrent speeds. Now I just leave it at 650.. Get these to make some oney back on these hard time mining
I tried different settings and i'm not happy with the quality of the miner since its gen2 shippment and not stable like the others at 750. I think the software is junk and also bitmain took the GEN1 firmware off the website, Anyone have a clean version firmware of GEN 1? I'd love to reflash mine. Have been running 600 to 618 and getting all kinds of diffrent speeds. Now I just leave it at 650.. Get these to make some oney back on these hard time mining
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