If you would like to find out more information about those IP addresses before deciding whether to block them, then I suggest performing reverse lookups of the IP addresses to see what domain names they are mapped to, if any, and then performing WHOIS lookups of the returned domain names to see if those IP addresses belong to any entity that you know and trust.

If you are using a *nix OS — e.g., macOS or any Linux distribution — open a terminal window and enter the following:


(Replace [IP address] with the IP address that you are looking up. The IPv6 address 2606:4700:4700::1111 points to Cloudflare's public DNS resolver. You may change it to an IPv4 or IPv6 address of any other public resolver or simply leave out the @ field to query your local system's DNS resolver.) This should return the domain name that is mapped to the IP address, if any.

Then, perform a WHOIS lookup of the returned domain name by entering the following into your terminal:


(Replace [domain name] with the domain name that you are looking up. You may instead use a web-based WHOIS lookup client if you wish.)

If the returned results are suspicious or unknown to you, then I recommend blocking those IP addresses.

I beg to differ.

Canaan announced the A721 on 2016-11-07. Commit 04e6a4b, titled Add Avalon7 support, was committed by qinfengling on 2016-07-29 and published by Canaan in the avalon7-dev branch of their cgminer repository on 2016-11-05. In other words, Canaan published the source code for the A721's version of cgminer two days before they officially announced the miner.

Canaan announced the A821 on 2017-12-20 at the latest. Commit 6786bbd, titled Add Avalon8 support, was committed by qinfengling on 2017-09-11 and published by Canaan in the avalon8 branch of their cgminer repository on 2017-09-27. In other words, Canaan published the source code for the A821's version of cgminer roughly three months before they officially announced the miner.

Canaan announced the A921 on 2018-09-19 at the latest. Commit fbc869b, titled Add Avalon921 support, was committed by Johnson-Fan on 2018-09-10 and published by Canaan in the avalon9 branch of their cgminer repository on 2018-09-11. In other words, Canaan published the source code for the A921's version of cgminer roughly eight days before they officially announced the miner.

Canaan announced the A10 at 2019-03-28T15:21Z. It is now almost seven months since the official announcement and there is still no published source code for the A10 in any of their GitHub repositories at the time of writing. The only entry for the A10 to date is the avalon10-docs repository, which merely contains a manual for the A10's API.

It appears that Canaan has stopped publishing their source code in their GitHub repositories since the release of the A10 series. Given that the A10 (and presumably the A11) use cgminer — at least according to the only available documentation for the A10 — Canaan appears to have followed in the footsteps of the other manufacturers in violating cgminer's license.

If the A10 and A11 are using OpenWrt as the base OS, then Canaan is also violating OpenWrt's license by not publishing the source code for their fork of OpenWrt.

This is a regrettable development.

I didn't move it. As far as I'm concerned, your topic did not violate the Pools board's rules, as it focused on announcing and discussing the bitcoin side of the pool.

Hello.

The following items are up for sale:

Quantity	Item	Price	Condition	Original Accessories	Original Packaging
SOLD	NVIDIA GeForce GTX 1070 Founders Edition	$200.00	Used	Included	Yes
1	Corsair RMx Series RM1000x	$70.00	Used	Included	Yes
1	Avid Eleven Rack*	$150.00	New	N/A	Yes

* Pro Tools not included.

All prices are quoted in USD and include standard shipping to any location worldwide.

All items ship from Kuala Lumpur, Malaysia.

I accept payment in XMR only, via DarkStar's escrow service. BitcoinAverage's USD/XMR exchange rate at the time of payment shall be the reference exchange rate. The escrow fee shall be split equally between the buyer and myself.

Pictures are available upon request.

To purchase or to request for more information, kindly contact me via forum PM.

---

2019-09-09T00:00Z

The NVIDIA GeForce GTX 1070 Founders Edition has been sold.

Efudd has an official thread for that firmware that is not self-moderated. Take your complaints there.

Canaan has published new OpenWrt and MM releases for the A821, A831, A841, and A851.

AvalonMiner	OpenWrt	MM
821	20190404	2019-04-04
831	20190404	2019-04-04
841	20190404	2019-04-04
851	20190404	2019-04-04

There are no published changelogs for each miner's 20190404 OpenWrt release at the time of writing.

The published changelogs for each miner's 2019-04-04 MM release are identical to each other. Here is the changelog for the A851's MM release:


The publication of these OpenWrt and MM releases correspond to Canaan's addition of new commits on April 4, 2019 to the avalon8 branch of their cgminer repository.

The most noteworthy of the new commits is commit b2356a1, which adds user-selectable power modes. The new modes are set by the --avalon8-power-mode command-line option, with values ranging from 0 to 5:


Values 3 to 5 appear to be unassigned as of this commit.

The high-performance mode appears to specify a target temperature of 87°C, a default voltage level of 10, and a maximum core clock of 875 MHz.

The balanced mode appears to specify a target temperature of 85°C, a default voltage level of 5, and a maximum core clock of 750 MHz.

The low-power mode appears to specify a target temperature of 65°C, a default voltage level of -5, and a maximum core clock of 537 MHz.

As stated in the new MM releases' changelogs, these modes appear in the OpenWrt GUI as a drop-down menu, with the high-performance mode being the default.

Things may be starting to look up for nuclear power in the US.

A bipartisan group of 15 US senators re-introduced a bill in late March 2019 that, if passed, would authorize the US government to enter into 40-year power purchase agreements (PPAs) with nuclear power companies. Current laws only authorize a maximum duration of 10 years for nuclear PPAs.

The bill also directs the Department of Energy's Office of Nuclear Energy to develop a 10-year strategic plan for supporting research into advanced nuclear reactors.

This means that the US could, in the not-too-distant future, see smaller and more modular reactors that run on safer fuel, like Terrapower's traveling wave reactor that runs on depleted uranium, become a reality.

That is incorrect. Covert AsicBoost does not use version rolling, but instead uses a method called "merkle grinding." Merkle grinding does not produce different block version numbers like version rolling does, hence its "covert" label. Gregory Maxwell described this method in much greater detail here.

We do not know with absolute certainty whether Bitmain used covert AsicBoost on Bitcoin's mainnet. There are signs that suggest they did. For example, merkle grinding tends to produce empty blocks, and Bitmain's pools do have a notorious history of mining empty blocks. Also, covert AsicBoost is incompatible with segwit, and we know that Bitmain did everything they could to prevent segwit's activation on Bitcoin. But beyond those signs, currently the only way to conclude that Bitmain did not use covert AsicBoost on Bitcoin's mainnet is by taking their word for it.

Not yet, at least. But sarcheer's M10's PSU did try to put on an early Fourth of July fireworks display.

I find these PSUs' general lack of safety certifications disturbing.

I wish they didn't go with integrated PSUs. I don't trust anything other than server PSUs to deliver that amount of power without being electrical and fire hazards.

Hello. The following items are up for sale.

Quantity	Item	Price per unit (USD)	Bundled accessories
2 SOLD	AvalonMiner 741	$7.50	Purchase of a single unit One AUC3 cable. Two 750 W HP Common Slot PSU kits. Each kit includes the PSU, one X6B breakout board, and three 6-pin to 6-pin PCIe power cables. Purchase of two units at once One AUC3. Two AUC3 cables. Four 750 W HP Common Slot PSU kits. Each kit includes the PSU, one X6B breakout board, and three 6-pin to 6-pin PCIe power cables.
6 SOLD	AvalonMiner 841	$75.00	Purchase of a single unit One AUC3 cable. One 1,200 W HP Common Slot PSU kit. Each kit includes the PSU, one X6B breakout board, and eight 6-pin to 6-pin PCIe power cables. Purchase of three to five units at once One AUC3. Three to five AUC3 cables. Three to five 1,200 W HP Common Slot PSU kits. Each kit includes the PSU, one X6B breakout board, and eight 6-pin to 6-pin PCIe power cables. Purchase of six units at once One AvalonMiner Controller. Two AUC3s. Six AUC3 cables. Six 1,200 W HP Common Slot PSU kits. Each kit includes the PSU, one X6B breakout board, and eight 6-pin to 6-pin PCIe power cables.
2 SOLD	AvalonMiner 921	$150.00	Purchase of a single unit One AUC3 cable. Two 1,200 W HP Common Slot PSU kits. Each kit includes the PSU, one X6B breakout board, and five 6-pin to 6-pin PCIe power cables. Purchase of two units at once One AvalonMiner Controller. One AUC3. Two AUC3 cables. Four 1,200 W HP Common Slot PSU kits. Each kit includes the PSU, one X6B breakout board, and five 6-pin to 6-pin PCIe power cables.

All prices exclude shipping charges. The buyer shall provide prepaid shipping labels.

All items are currently at and will ship from a colocation datacenter in Canby, OR 97013, USA.

I accept payment in XMR only, via any escrow service from this list that accepts XMR. The buyer shall pay the escrow fee. CoinDesk's USD/XMR exchange rate shall be used.

You may contact me via forum PM.

---

01:00 AM — Friday, March 15, 2019 (UTC±00:00)

Both AvalonMiner 921 bundles have been sold.

---

12:00 AM — Wednesday, April 10, 2019 (UTC±00:00)

All six AvalonMiner 841 bundles have been sold.

---

12:00 AM — Thursday, May 23, 2019 (UTC±00:00)

Both AvalonMiner 741 bundles have been sold.

Rules are rules. Anyone who breaks the rules of this forum will have to face the consequences. No exceptions.

Here is the rule relevant to Norm MacDonald's situation:


Here is Merriam-Webster's definition for plagiarizing:


Norm MacDonald committed plagiarism when he copied Changling's YouTube comment without crediting it as his source.

Norm refused to acknowledge whether he and Changling were the same person. He instead directed a tirade at philipma1957 for calling him out on it. I therefore could not make a reasonable assumption that Norm did not steal and pass off the words of another as his own. I therefore made a request for Norm to be banned, and so he was.

I too did not receive any reply from Canaan when I recently contacted them to request for a replacement for a failed A921 hash board. Their dedicated email address for RMA requests — rma@canaan.io — apparently no longer exists; my email to that address was returned.

Only when Blokforge contacted Canaan on my behalf — Blokforge took three weeks before responding to my support request — did Lily Han from Canaan inform me that the person in charge of after-sales support had left the company. There is therefore currently no one handling support tickets at Canaan, according to Lily.

Anyone seeking support from Canaan should therefore contact Lily directly at lily@canaan.io.

It's most likely the case that your Controller's older OpenWrt firmware is not communicating properly with the newer MM firmware of your three non-functioning A921s. Canaan made some changes and added some new parameters post-20180929 that may cause communication issues between the older Controller firmware and the newer MM firmware. I do not see any other apparent issues in your logs.

I therefore suggest a clean install of version 20190103 of the Controller firmware and then a reflash of all of your A921s to version 2019-01-03 of the MM firmware.

It looks like we won't be seeing any more of the GMO B2 and B3.

According to CoinDesk, GMO announced on Tuesday, December 25, 2018 that they will "no longer develop, manufacture, and sell mining machines." GMO's cryptocurrency mining division apparently recorded losses of $3.2 million in Q2 2018 and $5.6 million in Q3 2018.

It appears that Canaan fixed the previously non-functioning Voltage Level Offset drop-down menu on October 6, 2018.

The Voltage Level Offset drop-down menu in versions 20181128, 20181223, and later should therefore work properly now. It should no longer be necessary to add the --avalon8-voltage-level-offset command-line option in the More Options field to change the voltage level offset setting.

To check whether the Voltage Level Offset drop-down menu is working, navigate to the Processes page (under Status) and scroll to the bottom. The --avalon8-voltage-level-offset option in the row that is displaying the cgminer process should reflect the selected value from the Voltage Level Offset drop-down menu.

It appears that Canaan fixed the previously non-functioning Voltage Level Offset drop-down menu on October 6, 2018.

The Voltage Level Offset drop-down menu in version 20181011 and later should therefore work properly now. It should no longer be necessary to add the --avalon9-voltage-level-offset command-line option in the More Options field to change the voltage level offset setting.

To check whether the Voltage Level Offset drop-down menu is working, navigate to the Processes page (under Status) and scroll to the bottom. The --avalon9-voltage-level-offset option in the row that is displaying the cgminer process should reflect the selected value from the Voltage Level Offset drop-down menu.

Yes. Instructions for how to do so and how to interpret the various fields and values may be found here, under the subheading "How to locate and open the CGMiner API Log."

(HagssFIN wrote the guide with the A7 and A8 in mind, but most of it is applicable to the A9 as well.)

Nope. The latest OpenWrt and MM firmware releases are still versions 20181011 and 2018-09-26, respectively.