Topic: Bitmain Launches the New Antminer T9 Bitcoin Miner - page 5. (Read 38836 times)

One of my T9s does the same. Been like this for a few months now but hashes fine and temps are fine so I have left it alone.

Technically, because you reported the fault before 180 days, you should still have the right for warranty.
You have no influence for they to answer late, so it is only right that you get your warranty repair.

My miners are hosted and the below is the message they sent.  They were nice enough to loan me a S9 IO board, but it's only able to hash 2 of the 3 of the boards and I'm sure they'll want their IO board back sooner or later.

After testing different quite a lot of different issues, I've concluded that your IO board is defective. I've tested the following:
Factory reset
New power supply
Tried to remove one or more hashboards
Used an S9 IO boards and found all hashboards are working

How did you ensure it was IO board issues? I have 5 T9's that were running fine just until the recent 2 months. they seemed to be up with power but there's nothing connecting on the pool side.

I was wondering how everyone else's T9 are doing?  I have 4 and they were all working great until about 2 weeks ago when an IO board on one of them went out.  Bitmain didn't reply to any of my support request until yesterday which was by surprise 181 days after shipping!  Anyhow I asked if I can buy a new board off of them as I figured it would be faster than going through warranty anyhow and they said they're out of stock and will let me know when they'll come back into stock.  Does anybody have a T9 which they're selling parts out of?  If so I'll be willing to buy your IO board from you.

So far S9s were great, some boards need maintenance sometimes, but it's worth it.
I ordered couple T9-s, the new shipping policy makes it damn hard to somehow overcome double shipping taxes with whole unit and I will discuss it later.
One of my T9-s sometimes drops to 8Th which means one of the board is malfunctioning, after restarting the miner it reaches it's maximum, but I have to do it daily. what is the caus of this and is there a chance that I can check/repair the miner myself? IN case of S9 I just have to take the board send to Bitmain and get it back, but in case of T9 sending whole unit costs me roughly one month income of it, so every time one board is damaged on T9 I'm loosing month of profit + the time it needs to ship it to China and back. (The only way to send them from Republic of Georgia to China with EMS costs about 300$ when one board is only 50$, DHL/UPS charges three times more)

Thank you. I'll have to think carefully about a loud miner.  Those S3s were so wonderful.

To answer your question, ONLY the R4 is on par with an s3 regarding noise.
ALL other modern miners such as the Avalons, Ebang, and Hotmine are LOUD. And NO they cannot be changed to make quiet.

How loud is the T9 compared to the S3? Is a T9 a better choice for home mining than an R4?  It seems to be a little more trouble free than the S9 - or is that an illusion?  Will BITMAIN make any more of this family available. Any rumor on how close the next generation is? Also looking at the 741. But that is another thread.

I retired my S3s last year and got out of mining for a while. Now I am considering investing some of my BTC in a new mining rig. I'm in a 2 bedroom apartment with electricity included and I have a 20 amp circuit I can put a miner on. Not going to quit my day job, but my little pile of BTC from my last effort looks pretty darn good now.

TIA

Not sure if a s9 board will work in the T9, for 1 they are a different length. Be sure to ask them if it can be used.
I do see they also now carry spare T9 boards however. That what you meant?

Bitmain Warranty of course does PAID repairs of hash boards and normally all they need is the board -- not the entire miner like the factory does. If you send the board in, ask about mining comp (equal to the boards hash rate) while they have the board.

Anyone else notice mention of a "T9+" on Bitmain's "fix the exploit firmware" page?

 I wonder if they're going to do a S5+ style "big" miner based on the T9....

2-3 hrs is not fast,I remember tx times of less than 20 minutes...not THAT long ago...methinks there is something to the "selective mining of transactions" 

Nah,that's impossible........................

Most are quite fast for me in a few hours as well. My prev longest was 2 days. Maybe Blockchain.info had a brain fart as a consolidation transfer I did about an hour after the Bitmain order also took the 6 days to confirm as well.

Wow,most tx take about 3-6 hrs for me.....Corp BTC miners are gettin greedy,with all the hashrate you'd think maybe 30 mins or less......... 

Heh heh...
6 days after I paid for one of the latest T9's the tx just got confirmed this morning and Bitmain acknowledged it, changed order to valid/paid. Question is, any left to be shipped... ?

With the R4s such behavior is a first sign of imminent failure. But maybe its nothing.

Any one seen hash rates displayed like below? Miner still appears to be hashing at it's intended rate, the pool shows the same - I'm just concerned as it looks a little odd and none of my other T9's display like this.

Maybe check www.antbleed.com to patch your vulnerable miners.

I run my 1 and ½ r4s  and never went for any repairs.

the one with 1 dead board has run fine since dec
the one with a loud fan has run fine since jan.

I will just let them run till they drop.

I would go for a t9  but I am making money hand over fist mining Zec with gpus.

So I won't expand my 60th of sha 256.

I make more money with 6600h of zec and will soon expand to 8000h of zec.

If you analyze the issue why this has happened  the fault is 20 billion usd worth of BTC  is mined sitting in peoples wallet's

you don't need to mine anymore  just get some one with early mined cheap btc to use thier password to buy your ZEC or your ETH.

Think of the guy sitting on 100,000 btc mined at  1usd  each. He has 125 million usd in coin  He can diversify into ZEC  and ETH VERY EASY.  As he may not want to  convert to fiat.  So he  slowly buys ZEC and ETH  looking to have an eventual ratio of 33% of each coin in terms of fiat.   which would be about 41.6 million in fiat


or
 33,000 BTC
594,286 ZEC
832,000 ETH

someone is propping up ZEC and ETH  BY PURCHASING the two coins with BTC and fiat.

More btc then fiat.   So as long as this occurs  I won't buy any sha 256 gear. 

the t9 the s9 or the s4  = no no no
avalon 741 = no no no

I will only buy sha 356 gear from sidehack as I like his gear.

I will continue a slow expansion of gpu mining for the moment.

Due to multiple failure of a hash board on my R4B4, I have been offered a 'new' T9 for exchange of the stumbling R4.  I'm guessing I'll probably go with it - if I have it warranty repaired again there's no reason to think it won't do the same once again and drop to 1/2 speed after a short time.
Not thrilled with the large decrease in efficiency, but fully running less efficiently is better than half running more efficiently, if that makes sense...
A big Harrumph either way!