Topic: Innosilicon releases A9 Zmaster 50ksol/s Equihash miner at 620W - page 12. (Read 45641 times)

it's still profitable to buy Innosilicon A9 ZMaster 50 Ksol/S or is to late....
What about FORK for this coins ?

Whats that?
www.asicminervalue.com/miners/innosilicon/a9-zmaster-45k
Selling bad performing a9?

Want to add. I think its completely possible that these things constantly overclock and reevaluate themselves and inno's just making little (unsuccessful) tweaks to the process. Trying to stay optimistic tho. 

Overclocking in General with my Small sample of 2 Units.
- I have good unit that has never performed better with different VID/PLL
- I have a defect unit that does about 1Ksol better at 185-195 VID. but its a poor example being defect.


No, I could never get different VIDs for the boards. T1VID2/3 never did much for me. In the Newest firmware, it would change 'CGMiner-API stats' iVID value. I dont *think T1VID2/3 worked.. but I only messed around with it for a little bit b4 leaving it, getting wierd crashes the next day, and ditching the firmware. Its states in the Files, that T1VID sets the INITIAL voltage level, before tuning. However, When I use a higher VID I get a much higher power draw that stays. It honestly seems like there working on overclock. Just doesnt work. lol.


If you can read code you can get an idea of whats going on in these files.
https://github.com/ckolivas/cgminer/blob/master/driver-SPI-dragonmint-t1.c
https://github.com/ckolivas/cgminer/blob/master/dragonmint_t1.h

This i by no means easy to follow and on top of that, A9's seem to use this CGMiner Dragonmint Driver but with different values and who knows what other customization. ex. I cant find T1Adjust in these files. But for the most part, The process will be close or they wouldn't have used this code and started from scratch. Theres mention of logging about VID/Voltage/PLL(Mhz) in there that I dont see taking place. My guess is cgminer needs to be run in a debug mode. My fear is that inno commented it. The header file has clearly defined PLL tuning Min and Max. There's also ref_clk_khz and sys_clk_khz which I havent played with. No idea what they will adjust or are set at. Ive been avoiding hail marrys with such an expensive device.
--dragonmint-t1-options Dragonmint T1 options ref_clk_khz:sys_clk_khz:spi_clk_khz:override_chip_num

About the other ports for the Hashboards. its a blur now but I think when I was running 2 boards it seemed like the ports needed to be utilized sequentially. Like I was using ports 1 and 3 and the board on 3 didnt work. Ive been using 1 and 2 when I remove a board ever since.

Im going to give those files another read when im rested, try some different cgminer debug modes and make sure I completely Probed the API. Dragonmint eventually was overclockable from what I read. So there's still figuring out how that worked and see if it applies to A9's. Squeezing this in between 14h nightshifts. This is probably all hard to read. Its time for some sleep.

All equihash miners that are delivered now. Check asicminervalue.

Hi guys!

I have had this asic since 26/06/2018 and been running non stop with no problems.
3 days ago hashboard #1 and #3 went dead at the same time, I have tried to switch data cables but non of the cards work..
I can use card #2 fine in all data cabel outputs on the MB but the dead cards do not work..
Only possible live signs I get from those two cards is if i connect them to data ports that are not programmed, there is 8 ports on the MB and only 1-3 does support hashcards.
If i connect the two dead cards on any of port 4-8 the green LED lights up but they do not work.

Innosilicon tells me that i have to send them back for repair/exchange.
Do you have some advise or is this just a programming fault, or eaven some shady factory programming that are ment to be.
The cards have been removed from the asic and there is no burns or possible signs of damage.

who is connecting ? hash rates seem the same

So they started connecting.... See the profits diminish...

I would very much also like to know this.

I haven't overclocked yet at all but I would like to start soon.

Did somebody manage to overclock and run stable? And how high? Is there a legit way to do it?

Hi. dear friends. I have a problem in one of my chains in A9 zmaster. In order to fix it, I tried to decrease the voltage and frequency of my faulty board. but the main point is in there, whenever I try to decrease the T1Pll1 and T1VID1 options in config file, all of my chains frequency and voltage decrease at the same time. Look at my config file.

{
"pools" : [
   {
      "url" : "stratum+tcp://equihash.eu.nicehash.com:3357",
      "user" : "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
      "pass" : "x"
   }
   
],

"api-listen" : true,
"api-port" : "4028",
"api-allow" : "W:192.168.1.0/24,W:127.0.0.1",
"noauto": true,
"T1Pll1": "830",
"T1Pll2": "1400",
"T1Pll3": "1400",
"T1VID1": "125",
"T1VID2": "175",
"T1VID3": "175",
}

After running this conf file, All of my chains frequency (pll) speed becomes 830 and their voltage (vid) set to 125.
Is there anyway to configure each chain's frequency and voltage separately? Is there anyone who test it before?

They only answer when you buy something. Thats my personal experience.

Yes, Manufacturer does not seem responsive.  I am still waiting their respond on PSU spec for 2 days.
I do not feel confidence enough dealing with Cryptodrilling.com because they are using different entity name in Hong Kong.  Anyway, let us know how you goes.

Depends on your strategy. Since so many Equihash ASICs are incoming this month, maybe you should just buy the coin you want to mine for that money.

Think it is worth it to buy this so late for 3450 USD? Batch 12 - 20 september.

I am using b29+_20180706_042116.swu. The other one that came out later is the same. It just had another filename due to some technical reason regarding Innosilicon.

Now that I am thinking of it: Maybe the reason why the August fr ran cooler is, that the mining process did not work properly. If it crashes often, chips are cooler.

Mine also had issues yeaterday. Seemed like it was crashing hard and loosing spi communication with the hashboards in the log. At which point cgminer would restart. I saw this 4 times a row in the log in about an hour or 2 and said screw the new firmware. Mine were also wierd after downgrade. I removed the new T1adjust from the config and things seemed to level out. Wasn't really sure of anything since I've been Messing with the API and load balancing on multiple pools. Shut that all down for now too.

I put on a July firmware. Which firmware to you like? I have multiple with July dates.

I just order 3 Sample of A9 from there (cryptodrilling.com)
Because my company want to invest 5-10% to crypto
My boss choose this dealer i don't know why

Why not buy from manufacture?
The reason is : manufacture has a bad support

I will review and update soon with picture and all paper
If its good after test term my company will buy more from there

#sorry my english is not good

After comparing for some time, I went back to July firmware. I can not proof it 100%, but the newer firmwares seem to cause short hashrate drops. It can be seen in a drop of power consumption for some moments. Also the new firmware caused several crashes I did not notice.

Be careful: When you downgrade from August to July firmware, it might mess up the miner! It did for every miner I downgraded. I reflashed and applied factory settings. Because the miner kept crashing, you need to try several times until successfully applied.

Until now, the miners seem to crash after downgrade. Resetting did not help.
So be careful!

Edit: some resets, power offs and setting performance profiles later, they work now again normally with the July firmware.

Probably not - you'll more than likely just be flushing your money down the toilet.  99% of places that only accept payment in BTC and have no track record or contact information are going to be scams.  You can buy from Chinese dealers on Alibaba and use their Trade Assurance (escrow) service, and get the same or better pricing - and not have to worry about them running off with your money.  I do all of my overseas ordering through them, unless I'm dealing with the manufacturer directly - super easy to do and makes sure you're covered.