Topic: Antminer S9 Firmware Update Bitmain Release Overt AsicBoost 🤠 (Read 910 times)

about 12%-15%

What is the power draw with the firmware update?

I may do that, though I would prefer to be able to measure each miner at all times. but I could see having that many as being expensive. May just have to swap out all my outlets and cords to ones that will simply work with the meters.

or install inline ones. would be nice if ASICs had one built in right at the back of the PSU.

Buy or build an adapter cable. Take an extra one of your miner plugs with the L6-20P plug on it. Cut the L6-20P end off (leaving 6 or 8 inches of cord). Cut a 5-15/20R receptacle end off of an extension cord. Splice these together to make yourself an adaptor cable that you can plug the meter into and then plug it into one of your L6-20R outlets for power. Of course, make sure everything is put together right and sealed good (electrical tape, heat shrink tubing, etc...) Remove the C13 to L6-20P cable you have on a miner. Use a regular PC power cable (C13 to 5-15P or 5-20P plug) to plug into the power meter.  This way you can use the cheap, easy to move from miner to miner, power meter, and not have to change any wiring. When done testing a unit, put the original miner cord back and move on to another unit.

for me to use the 120v versions - I would have to replace all my outlets and all my power cords. My outlets/cords are L6-20P which does not match any of the meters that I have ever been able to find.

As DefiantMiner said, you can use "normal" 110-120 outlets - but I would recommend ones that are rated for 20amps. Then you can use regular PC power cords. S9's do not even require heavy duty power cords as at 220-240v - they are only drawing 6+ amps in that configuration. Now, I say 20 amps, because you want to figure an extra 10 per connection (plug to outlet) and you have to figure 80% of the rating for a constant load. So, a 15amp rated outlet should only have a constant load of 12amp ((15amp * .80 = 12amp) running through it. A 20amp rated outlet can have a 16amp load constant. So, if you have two S9s at 1500w each + 10% = 2*(1500*1.1) = 3300w at 240v = 13.75amp - below the 16amp constant load the 20amp outlet can handle - but over what a 15amp outlet can handle. This way, you can use the suggested power usage meters without having to wire in those inline models. This way, you can get one or two of the plug-in types to check different machines at different times. The inline would be much more of a pain to use for testing different units over time. Just my two cents! Again, just be careful not to plug regular 110-120v devices into these outlets - they will not be happy! - Also, this would require a 20amp breaker and the properly sized wiring from the breaker to the outlet as well. All must be considered. If your wiring and breaker can only handle 15amp - then don't run 2 S9-s from one outlet.

There is no "official" socket/plug for 240v like those because of industry standards...otherwise it would be too easy for gen-pop to plug 120v equipment into 240v sockets and vice versa.  I just use the heavy duty 15amp versions as they can physically handle the 240v...you just have to be mindful of what you plug into those circuits.  For instance, most computer equipment (monitors, switches, power supplies, etc) can run 240 or 120 using the standard plug/cables...I can take advantage of that too.  All the mine infrastructure (except the main 30amp L6 feed connections), including a couple laptops, are all on 240v with std plugs.  

I do not think it was made to increase hashrate but to lower power consumption as stryfe has mentioned about his experience with using it on his machines and from what other people have said.
There is another article about it that might explain it bit more to what Bitmains intentions were with this release in firmware
https://www.coindesk.com/bitmains-latest-bitcoin-miner-update-activates-controversial-asicboost/
Any Idea how much hashrate increase after this new firmware.

all the ones I put it on dropped about half a TH/s - some are seeing slight increases - others are seeing hash rate remain the same but seeing power consumption drop.

If you read back thru the comments and on a few other threads here you will see quite a few people stating their results. They do seem to vary.

nah it was not expensive - was the cheapest cord I could find when I installed my outlets, so I installed the matching outlets.

I will need to look at doing an inline meter for sure. The ones you linked though - I have never seen 220v outlets that look like 110v outlets though - do you have a link to ones that match an existing 220v outlet?

yes bitmain released a new firmware.

On each miner?   Wow! Overkill and expensive.   You will have to build your own in-line meter out of something like this:
https://www.ebay.com/itm/Digital-LCD-AC-220V-450V-230V-240V-LED-Voltmeter-Panel-Volt-Amp-Watt-Combo-Meter/192038472749

I cannot use those and have not ever seen ones for the types of plugs I use - L6-20P

Pickup a couple wall plug "watt meters" on eBay and use them to measure the wattage you miner uses in real-time.

I use these since they work both 240v and 120v:
https://www.ebay.com/itm/Digital-Power-Saving-Energy-Monitor-Watt-Amp-Volt-KWh-Meter-Electricity-Analyzer/282562106503

You can even enter your kWh power rate in the meter and it will keep a running total of power cost for the unit plugged into it.   Mainly I just use it to do power surveys to quantify changes and their affect on profitability.

I did see someone state they tried on some s9i and it worked for a bit then a board would stop working - so they reverted back and miners are working fine.

what is the best way to measure the electricity usage? I always just use my electric bill lol

also, with LPM selected, is the hash rate supposed to drop or increase? last time I tried mine all dropped by half a TH/s without knowing if the power drop is sufficient to cover the lost hash rate, I am unsure as to whether to leave it checked or not.

Got all the S9s up on the 20181023 (2nd LPM release) firmware.  Happy to report 12.5-13% drop in power use, perhaps a fractional hash rate drop.  I have noticed the measured power usage is more stable as well...doesn't vary as much as previous.

Nice to knock a few kWs off the bill...and increase profitability ~25%!

I'll track pool side specs overnight and report back.

Curious if anyone has tried it on S9i or T9 yet?   (Bitmain said those specific FMs were coming later)

ahh lol I didnt catch the date, just saw the one file - thought they would have added not replaced - thanks!

Same place the other https://service.bitmain.com/support/download, look under S9:
Antminer-S9-LPM-20181023.tar.gz

...the first one released was 20181022

where do you see this revised version? I only see the one released yesterday.

UPDATE:  Bitmain released a revised version of the firmware today...it works with Slushpool and others now.