ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 224.

hawkfish007

hero member

Activity: 895

Merit: 504

Quote from: cl4ud1u on November 07, 2015, 04:06:42 AM

One miner was giving me lots of HW errors and when i removed the fans to check the heatsinks, surprise...one missging

What can i do ? Write to Bitmain or buy heatsinks? Where from ?

Bitmain replaced 2 of my B1 hashboards, both had loose heatsinks with chip so I only had 1 working board. The exchange process was quite simple and it took less than 2 weeks.

klondike_bar

legendary

Activity: 2128

Merit: 1005

ASIC Wannabe

Quote from: cl4ud1u on November 07, 2015, 04:06:42 AM

One miner was giving me lots of HW errors and when i removed the fans to check the heatsinks, surprise...one missging

What can i do ? Write to Bitmain or buy heatsinks? Where from ?

not sure if bitmain would be fast or particularly helpful to respond. An easy DIY would be to buy a small adhesive heatsink (look on ebay/amazon for "tiny heatsink, bitcoin heatsink, rpi heatsink" or something along those lines, they stick on easily and while smaller than the original, should help somewhat.

alternatively, ignore it. accept the loss of ~80GH so long as the system appears to be getting ~98% of the nominal hashrate

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: cl4ud1u on November 07, 2015, 04:06:42 AM

One miner was giving me lots of HW errors and when i removed the fans to check the heatsinks, surprise...one missging

What can i do ? Write to Bitmain or buy heatsinks? Where from ?

If in warranty write bitmain. If you say you opened it up without their permission they can void warranty just a FYI. So you might ask them if you can open it in a email or support ticket... if you say you did it on your own I would hate to have warranty voided.

But yes get in contact with them.

cl4ud1u

full member

Activity: 203

Merit: 100

One miner was giving me lots of HW errors and when i removed the fans to check the heatsinks, surprise...one missging

What can i do ? Write to Bitmain or buy heatsinks? Where from ?

thedreamer

legendary

Activity: 1694

Merit: 1002

Go Big or Go Home.....

Quote from: -droid- on November 06, 2015, 11:52:39 PM

Quote from: thedreamer on November 06, 2015, 11:30:26 PM

Both my 4.86TH Batch 1's when downclocked to 575Mh, got 0.0001 or 0.0000% error rates at just over 4.73TH average over a 12 hour period while testing.

I also found, that by loosening up the screws on the fans front and aft (all Cool

the sound became a much less 'droning' and a smooth 'hooosh' type of sound.
Originally the sound was like a humming type , pretty loud.

And yes, like I said I would, I got rid of my S7's as I'm done with Bitmain as a business after the crap they pulled with this miner.

Ahh that's why they were all loose lol

LOL. Forgot to tell ya. Didn't think you'd mind the less noise. :-)

IMO these are actually quieter at full speed but fans at 37 or below, than the S5's with stock fans running PWM.

Biodom

legendary

Activity: 3892

Merit: 4331

Quote from: -droid- on November 06, 2015, 11:52:39 PM

Quote from: thedreamer on November 06, 2015, 11:30:26 PM

Both my 4.86TH Batch 1's when downclocked to 575Mh, got 0.0001 or 0.0000% error rates at just over 4.73TH average over a 12 hour period while testing.

I also found, that by loosening up the screws on the fans front and aft (all Cool

the sound became a much less 'droning' and a smooth 'hooosh' type of sound.
Originally the sound was like a humming type , pretty loud.

And yes, like I said I would, I got rid of my S7's as I'm done with Bitmain as a business after the crap they pulled with this miner.

Ahh that's why they were all loose lol

mine are still tight, did not want to stop the hashing during first 24 hr.
I also did the trick with screws on B1, but forgot this time.

-droid-

legendary

Activity: 1050

Merit: 1001

Quote from: thedreamer on November 06, 2015, 11:30:26 PM

Both my 4.86TH Batch 1's when downclocked to 575Mh, got 0.0001 or 0.0000% error rates at just over 4.73TH average over a 12 hour period while testing.

I also found, that by loosening up the screws on the fans front and aft (all Cool

the sound became a much less 'droning' and a smooth 'hooosh' type of sound.
Originally the sound was like a humming type , pretty loud.

And yes, like I said I would, I got rid of my S7's as I'm done with Bitmain as a business after the crap they pulled with this miner.

Ahh that's why they were all loose lol

thedreamer

legendary

Activity: 1694

Merit: 1002

Go Big or Go Home.....

Both my 4.86TH Batch 1's when downclocked to 575Mh, got 0.0001 or 0.0000% error rates at just over 4.73TH average over a 12 hour period while testing.

I also found, that by loosening up the screws on the fans front and aft (all Cool

the sound became a much less 'droning' and a smooth 'hooosh' type of sound.
Originally the sound was like a humming type , pretty loud.

And yes, like I said I would, I got rid of my S7's as I'm done with Bitmain as a business after the crap they pulled with this miner.

Biodom

legendary

Activity: 3892

Merit: 4331

Funny thing: one batch 2 (10/16 order) has no sticker, but was setup at 575 9this one has an unbelievable 0.0001% error right now, knock on wood; another batch 2 (10/22 order) has a sticker covering another sticker (575 over 600 or 575 over 550?).
Additionally, each of these two sound differently with one with a solid noise and another with annoying "banging" similar to S5.
So, all machines seem to have their own little quirks.

sloopy

hero member

Activity: 700

Merit: 501

https://bitcointalk.org/index.php?topic=905210.msg

I considered it heavily before this mini model. Now, yeah, may as well wait and see what else pops up.
The S7 is the dominator, but who knows, we could get lucky and see something before the end of the year that stands up and costs less.

Although, it doesn't matter, they will sell out fast.
I'm thinking more along the lines of leaving a little in the pot to see what might jump. There has been a lot of talk about the renders going around, heh, but who knows, the S7 is shipping. Gotta still give bitmain that. Albeit, it is about time to start seeing that delay payment coin.

Prelude

legendary

Activity: 1596

Merit: 1000

What's the point of making this gimped batch? Hopefully they go back to the 162 chip design for the next batch. I'll be skipping this one.

jermwerty

sr. member

Activity: 472

Merit: 250

Quote from: notlist3d on November 06, 2015, 02:44:23 PM

Quote from: Biodom on November 06, 2015, 01:57:31 PM

wicked, but I am wishing for a 15-20 min btc plunge to $325-350, followed by a swift recovery, of course.
It would allow me to get B6.
Currently ~$1599 shipped, but $1350 (at btc $325) or $1450 (at btc $350) shipped would be so much better.

Quote from: notlist3d on November 06, 2015, 01:52:25 PM

Quote from: jermwerty on November 05, 2015, 09:37:56 PM

Hmm that PSU is 87% efficient.

But S5s "burned up" if you ran them with too low of volts? Interesting.

I have my old Rosewill Lightning 1300W PSU running my 4.66TH S7, seems to be doing fine even though I only have a dedicated 20A 120V circuit. PSU outputs 12.18V under full S7 load!

The lightning 1300 should do fine. I got one long ago on a rebate deal. It's one of the nicer ones Rosewill makes, some of theirs are utter crap. But the lightning is high enough they made it good quality I would say.

Mine I cant remember date i got it but it has to have been running about a year or so I would guess.

Rosewell 1300 has 8 PCIE connectors. Are they all single headed or doubles?

It is 4 X 2's. I had to go out and check I could not remember.

It's a good PSU has been running 2 underclocked SP20's. But it's definitely not enough PCIe's for a S7.

No its actually 4x1 + 2x2, so 8 connections total but really 6 dedicated/usable in the case of the S7. I just did an extension on one of the 2x2 to make the other end reach the fan PCB.

I think the Rosewill Lightning 1300 is perfect for S7, and keeps it within the >12V requirement. I guess not all G2 1300 are above 12V?

sloopy

hero member

Activity: 700

Merit: 501

https://bitcointalk.org/index.php?topic=905210.msg

People were talking about a white sticker on the portion of the hashboard protruding from the aluminum case. Right where you connect the PCIe power connectors. It was matched to the frequency by people posting about it.

Yes, there is a revision # on the PCB as well.

UfoRia

full member

Activity: 182

Merit: 100

Quote from: bbOOmm on November 05, 2015, 11:07:53 PM

The v1.4 , v1.5 and v1.6 boards you are referring to, is that the revision number that is printed ~ON~ the circuit board just under the molex connector? ...or... is that the revision number that is on the Antminer sticker found atop the logic board housing?

On my miners, the circuit boards have v1.5 printed in white whereas the Antminer sticker on the logic board housing state v1.8 ... I think you can see my confusion that needs clarification.

Hashing board revs, pretty sure they are imprinted on the pcb. They are in a spot where it is not possible to verify since they are all connected to each other.

Ufo

Fatman3001

legendary

Activity: 1526

Merit: 1013

Make Bitcoin glow with ENIAC

I see Bitmain started pricing the s7's in BTC again now that BTC is up. To "support the Bitcoin ecosystem" no doubt.

Let's see if it holds up if we crash.

hawkfish007

hero member

Activity: 895

Merit: 504

I wanted to share my experience for warranty claim through Bitmain @ China Headquarter. It was great, within 24 hours of receiving my B1 faulty hashboards, new hashboards are in the mail, scheduled to be delivered on Monday. Sherry Liu was great help, the entire process took less than 2 weeks

rockyforever

sr. member

Activity: 429

Merit: 250

Quote from: kaltar on November 06, 2015, 04:00:29 PM

Quote from: hawkfish007 on November 06, 2015, 03:50:52 PM

Quote from: pj40 on November 06, 2015, 03:04:32 PM

Quote from: hodedowe on November 06, 2015, 02:41:34 PM

I know I'm a little late to the party, but wow. 500 TH drop in power and same price? No thanks. I'd wait for B7 or whenever they get production back on track. The B6 should be called the Bitmain S6 1/2.

Roll Eyes

Heh, compared to my B3, it's over 800 TH drop for almost the same price...But I'm still tempted to buy one just because its efficiency lets me unplug my other miners for more hash.

Also if you don't want to wait until 2016 and get a miner this year, S7 B6, Avalon 6 (if you can get on a group buy list) or used miner are your only option.

Is there an Official thread for the Avalon 6, i can`t seem to find any except for the ones that compares the S7 with the A6.

i don`t want to hijack this thread, so someone just send me a PM if there is

Avalon Asics thread in hardware. near the top.

kaltar

sr. member

Activity: 805

Merit: 250

Quote from: hawkfish007 on November 06, 2015, 03:50:52 PM

Quote from: pj40 on November 06, 2015, 03:04:32 PM

Quote from: hodedowe on November 06, 2015, 02:41:34 PM

I know I'm a little late to the party, but wow. 500 TH drop in power and same price? No thanks. I'd wait for B7 or whenever they get production back on track. The B6 should be called the Bitmain S6 1/2.

Roll Eyes

Heh, compared to my B3, it's over 800 TH drop for almost the same price...But I'm still tempted to buy one just because its efficiency lets me unplug my other miners for more hash.

Also if you don't want to wait until 2016 and get a miner this year, S7 B6, Avalon 6 (if you can get on a group buy list) or used miner are your only option.

Is there an Official thread for the Avalon 6, i can`t seem to find any except for the ones that compares the S7 with the A6.

i don`t want to hijack this thread, so someone just send me a PM if there is

hodedowe

sr. member

Activity: 359

Merit: 251

OMG 2016? Are U seriuss? That's like a month and change from being up on the website Cheesy

Seriously though, 800 TH is worth the wait. For me that is. But I'm a little more tight with my winnings than most from what I've seen.

hawkfish007

hero member

Activity: 895

Merit: 504

Quote from: pj40 on November 06, 2015, 03:04:32 PM

Quote from: hodedowe on November 06, 2015, 02:41:34 PM

I know I'm a little late to the party, but wow. 500 TH drop in power and same price? No thanks. I'd wait for B7 or whenever they get production back on track. The B6 should be called the Bitmain S6 1/2.

Roll Eyes

Heh, compared to my B3, it's over 800 TH drop for almost the same price...But I'm still tempted to buy one just because its efficiency lets me unplug my other miners for more hash.

Also if you don't want to wait until 2016 and get a miner this year, S7 B6, Avalon 6 (if you can get on a group buy list) or used miner are your only option.

Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 224. (Read 527809 times)