 Show Posts
|
|
Pages: « 1 [2] 3 »
|
So Z9 in the kernel log files has alot of refrences to FPGA along with the chip boards having FPGA manufacturer. I wonder if there would be a way to modify it to change algos not entirely sure if its possible tho. Just wondering if anyone has looked into it more?
I was wondering the same thing, but don't have a clue, also, I was contemplating if, its possible to push each card 7 KSol/s (or 6.4) to get 21 KSol total... (2 Fans attached and %100). sometimes my boards' peak up to 6.4, I wonder if I can hold that around 6 ksol !! maybe ?? Where can I learn more?  FYI, all of the variation you see is due to how equihash solutions are generated. The number of rounds of equihash per second is the same and only depends on the clock rate of this device. The statistical average is two solutions per round of equihash, but its can be more and less. |
|
|
|
Screw Bitmain...this is how you get a 2 in 1 miner by yourself  Might have some fun stuff for you guys soon (I figured out the voltage controller which is how I hit 800mhz stable btw). Are you using a voltage app to adjust please educate! Some great info here, what do you feel would be the recommended max chip temp for the included cooling solution? These are GPU sized dies...I would not push them more than what you would push your normal GPU. These are not the normal small packaged dies Bitmain uses, so they can definitely not take 90C+ of continuous temps before something goes wrong. FYI, someone pulled a die on one and tromp has made some comments regarding the silicon. |
|
|
|
|
The inductors look like eatons I've used. They look like FP1007R6-R15-R or FP1008-150-R, but the part marking is different and labelled 1449 (144nH). I haven't found a part that matches that yet.
|
|
|
|
Yes I design miners for a living  Everything on here is way over specced...even at 45 amps I'm pushing though them now they are running a cool 70c without heatsinks. I have already dumped the config and modified it for 6 phases  No worries. I'm an EE too (microwave electronics, but have designed single phase bucks and boosts). I haven't opened mine up yet to build a schematic, though. Probably will do that this weekend. Despite being in competition as miners and all... I'd be interested in getting that data if your're game  |
|
|
|
|
I would like to point out that just because those integrated switches are rated for the current, does not mean that they would be happy operating there with their thermal design. As well, the inductor value might not be optimal for the higher current operation. As well the output capacitance might not be suitable for the higher ripple currents (especially a concern since the bulks look like tantalum)
I would say if you can populate it to add the two other phases you'd be better off than redesigning the 4 phase design for higher current. But that's just my WAG.
From the intersil datasheet:
"• Intuitive configuration using the PowerNavigator GUI
- NVM to store up to eight configurations "
Maybe they stored a config for 6+2 phase and you could just add the parts and go?
|
|
|
|
|
I'ts a solid product so far. I got what I paid for. But I would not be so quick to buy a batch two one... especially in this down markey
|
|
|
|
|
642 2018-05-29 17:23:27 50
643 2018-05-29 19:40:31 1
644 2018-05-31 17:53:12 1
645 2018-05-31 19:49:00 1
646 2018-06-01 10:17:38 1
647 2018-06-05 17:31:34 1
648 2018-06-12 09:37:17 1
649 2018-06-12 20:06:56 1
650 2018-06-13 07:19:37 1
651 2018-06-14 18:57:54 2
652 2018-06-15 18:04:24 1
653 2018-06-20 13:42:27 1
654 2018-06-20 20:44:39 1
655 2018-06-20 20:44:39 1
An order from six days ago. Paid $850 or less. Getting it now. What. The. Shitmain.
|
|
|
|
It wouldn't make any sense for bitmain to ship batch #2 early. That being said, and I'm sure there is an explanation, it does seem like 100+ batch #2 units were shipped early.
What? That's shit mate. We paid $2000 for one, they paid ~$1500 for two and or 850 each and they get them two months early? what the literal F. |
|
|
|
|
I think it would be unlikely that the crystal is used with the VRM, given its location and I think I see the traces running to the asic.
|
|
|
|
|
Could you post a higher res image of the crystal area? If you don't have one that's fine, I'll just dissect mine tonight.
|
|
|
|
I'm getting the itch to pull out one of my hash board and measure the base clock and PLL clocks (if off-chip) jsut to see if the difference in our hashrates are just the delta in the reference clock accuracy. Maybe they're using a shitty crystal ocxo with wide tolerance and could be overclocked with a change of crystal or loading capacitance. Then it's just a matter of relating the pll base clock to the web page setting and create a translation table. Maybe a nice low jitter mems tcxo... Though going beyond 750 may raise thermal concerns. Might require sourcing some copper heatsinks and using liquid metal TIM? Definitely a warranty voiding move but doesn't require software/firmware changes .... Would anyone be interested in copper replacement heatsinks if I contracted the manufacture of them? |
|
|
|
|
Interesting. I guess I got a lame one :p
|
|
|
|
Hello all. Just wanted to report my initial findings with the Z9 I received today. The default hash board clock is 500MHz. Every 10% increase in clock resulted in a 10% increase in average hashrate and a 10% increase in DC power consumption on the hashboards. Each one is around 6A at 500MHz and 9A at 750MHz. The controller runs around 0.5A but varies a bit. I noticed other Z9s on luckpool. Some are hashing a fair bit faster than mine. I wonder if they have exceeded the clocks in the drop down box to achieve it. This one gets over 17k consistently https://luckpool.net/zen/miner.html?zniW5xFyjvaToSh3RasBmUsf2KyqoMVcALm16.8 here as reported by the pool or the antminer status page? I'm sitting at 15.3 @750MHz as reported by antminer |
|
|
|
Hello all. Just wanted to report my initial findings with the Z9 I received today. The default hash board clock is 500MHz. Every 10% increase in clock resulted in a 10% increase in average hashrate and a 10% increase in DC power consumption on the hashboards. Each one is around 6A at 500MHz and 9A at 750MHz. The controller runs around 0.5A but varies a bit. I noticed other Z9s on luckpool. Some are hashing a fair bit faster than mine. I wonder if they have exceeded the clocks in the drop down box to achieve it. This one gets over 17k consistently https://luckpool.net/zen/miner.html?zniW5xFyjvaToSh3RasBmUsf2KyqoMVcALm |
|
|
|
|
"If you do not take immediate action and finish customs clearance, the product will be discarded by your local customs."
This is bogus. Customs items will be warehoused and you'll have to pay the fees to release it. They only discard or sell off items if you let it sit there for like 30-60 days.
|
|
|
|
|
I had mine shipped UPS. Since I'm already have accounts with UPS I got an email as soon as they knew i had customs fees due. I paid within a few minutes. My item is delayed in Shenzhen too. Though i just got this line
Shenzhen, China
06/23/2018 12:xx A.M. Warehouse Scan
06/22/2018 9:xx P.M. Your package is delayed at export and is awaiting release from customs.
|
|
|
|
Should try $DYOR I think it's proof of work based. Not on any exchange.
lel <3 |
|
|
|
|
Mine is shipped. Woot. Should be here Monday.
|
|
|
|
|
it's worth every penny to have UPS act as your agent.
|
|
|
|
|
