ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 74.

notlist3d

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Quote from: Elphamyto on January 27, 2016, 02:16:11 AM

Can someone with Bitmain RMA experience or familiarity tell me the best way to get in touch with Bitmain. I need to RMA a defective board from Batch 9 and I've had a support ticket open for a few days now w/o response. I realize this isn't a support thread, but I see that several people here have been through the process of returning boards. There is an email for [email protected] on their workOrderGuide web page, but I don't know if that's for initiating a return. Thanks

RMA requests are actually [email protected] on email's. So I would send a email that way.

I will warn they have got harder on warranty. Don' t take apart and try to fix or they consider it voiding warranty unless you had permission.

Elphamyto

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Can someone with Bitmain RMA experience or familiarity tell me the best way to get in touch with Bitmain. I need to RMA a defective board from Batch 9 and I've had a support ticket open for a few days now w/o response. I realize this isn't a support thread, but I see that several people here have been through the process of returning boards. There is an email for [email protected] on their workOrderGuide web page, but I don't know if that's for initiating a return. Thanks

djroadking

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I'll finally get my S7 tomorrow and will be able to update you guys on if I have a customs charge from UPS or not. Hopefully the miner doesn't have any issues but seeing as plenty of you are having problems with dead boards or heatsinks falling off... I guess I should be expecting something.

OgNasty

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Quote from: notlist3d on January 26, 2016, 06:17:41 PM

Dang I hope they get it fixed up this time, that does sound like a pain. Out of curosity when you say using EVGA PSU's are you using EVGA 1600's?

Just was curious on which EVGA PSU it was.

I use 2 EVGA 1300s for each S7. I've got a bunch laying around.

-droid-

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Quote from: notlist3d on January 26, 2016, 10:11:48 PM

Quote from: -droid- on January 26, 2016, 10:09:20 PM

Quote from: notlist3d on January 26, 2016, 10:06:42 PM

Quote from: nhando on January 26, 2016, 09:39:57 PM

Does those 2 boards report much higher temperature as a result compared to the 3rd hash board? Curious as I want to be able to spot these issues in the future if it happens remotely.

I think he got lucky. It would be very easy not to notice it, which is the scary part. And the heats sinks are made of metal so if they hit the wrong spot on the board it can be a very bad result.

With 2 having issues Droid was there anything in common you noticed? Or just plan bad luck.

I hadn't even tried to run them, I noticed as I was moving them the clanking.. I think they may have fallen off after placing them on their new shelf.. Maybe the litte thump from setting them down was enough to just pop off

Interesting I'm glad you found it before any damage. That is kinda scary if caused from just moving shelf's. I was not guessing something as little as that was cause. Thanks for sharing.

Yeah I ordered a couple rPi heatsinks after I saw the sink on the end tumbling around, but then realized a second one was loose also. Just sent an email to Sherry to see what she wants me to do

Also on another note

Has anyone had issues sliding two together and the two getting stuck? I've got a B7 and B8 slid together with the aluminum rails and for the life of me I can't slide them apart now. Seems maybe the metal swelled or there might have been a little shard of aluminum on the track and wedged itself in there causing it to jam up. I'm probably going to have to keep them permanently together now lol

notlist3d

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Quote from: -droid- on January 26, 2016, 10:09:20 PM

Quote from: notlist3d on January 26, 2016, 10:06:42 PM

Quote from: nhando on January 26, 2016, 09:39:57 PM

Does those 2 boards report much higher temperature as a result compared to the 3rd hash board? Curious as I want to be able to spot these issues in the future if it happens remotely.

I think he got lucky. It would be very easy not to notice it, which is the scary part. And the heats sinks are made of metal so if they hit the wrong spot on the board it can be a very bad result.

With 2 having issues Droid was there anything in common you noticed? Or just plan bad luck.

I hadn't even tried to run them, I noticed as I was moving them the clanking.. I think they may have fallen off after placing them on their new shelf.. Maybe the litte thump from setting them down was enough to just pop off

Interesting I'm glad you found it before any damage. That is kinda scary if caused from just moving shelf's. I was not guessing something as little as that was cause. Thanks for sharing.

-droid-

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Quote from: notlist3d on January 26, 2016, 10:06:42 PM

Quote from: nhando on January 26, 2016, 09:39:57 PM

Does those 2 boards report much higher temperature as a result compared to the 3rd hash board? Curious as I want to be able to spot these issues in the future if it happens remotely.

I think he got lucky. It would be very easy not to notice it, which is the scary part. And the heats sinks are made of metal so if they hit the wrong spot on the board it can be a very bad result.

With 2 having issues Droid was there anything in common you noticed? Or just plan bad luck.

I hadn't even tried to run them, I noticed as I was moving them the clanking.. I think they may have fallen off after placing them on their new shelf.. Maybe the litte thump from setting them down was enough to just pop off

notlist3d

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Activity: 1456

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Quote from: nhando on January 26, 2016, 09:39:57 PM

Does those 2 boards report much higher temperature as a result compared to the 3rd hash board? Curious as I want to be able to spot these issues in the future if it happens remotely.

I think he got lucky. It would be very easy not to notice it, which is the scary part. And the heats sinks are made of metal so if they hit the wrong spot on the board it can be a very bad result.

With 2 having issues Droid was there anything in common you noticed? Or just plan bad luck.

nhando

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Does those 2 boards report much higher temperature as a result compared to the 3rd hash board? Curious as I want to be able to spot these issues in the future if it happens remotely.

-droid-

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Quote from: nhando on January 26, 2016, 09:13:54 PM

Quote from: -droid- on January 26, 2016, 07:01:41 PM

One heatsink in a b7 I have fell off when moving the miner to a diff location.

Could I potentially buy a small adhesive rPi heatsink to replace it?

What batch is this? Wow that is not good to hear that heatsinks are falling just from regular relocation. How did you find out 1 fell off? Did the temperature spike up on 1 of the card or did you just happened to be looking and coincidentally saw this?

Batch 7

I heard a clinking sound and took off rear fan and saw it popped off the end of blade 1

Also looking at it more there's another heatsink that popped off in the middle of blade 2

nhando

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Quote from: -droid- on January 26, 2016, 07:01:41 PM

One heatsink in a b7 I have fell off when moving the miner to a diff location.

Could I potentially buy a small adhesive rPi heatsink to replace it?

What batch is this? Wow that is not good to hear that heatsinks are falling just from regular relocation. How did you find out 1 fell off? Did the temperature spike up on 1 of the card or did you just happened to be looking and coincidentally saw this?

notlist3d

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Quote from: hawkfish007 on January 26, 2016, 07:08:32 PM

Quote from: -droid- on January 26, 2016, 07:01:41 PM

One heatsink in a b7 I have fell off when moving the miner to a diff location.

Could I potentially buy a small adhesive rPi heatsink to replace it?

I was told the following by Sherri. If it's not done right, you risk burning the chip.

"Carry and setting gently when assembling the hash boards. Since the heat sinks are glued on the hash boards directly(it is not firm enough), they can easily knocked off.

If there have heat sinks drop out from the hash boards ,please do not use it any more and contact us asap! You cant fixed it in your side or the warranty will be void！

If the boards are burnt due to lack of the heat sinks ,you need to cover the repair cost."

If you do it your side you give up any warranty. So I personally would contact bitmain and see about RMA on the 1 blade. It does stink on downtime.... but if they see you tried to repair it it's hard to tell what they will charge vs free. I would use the warranty.

If you were out of warranty I would look for solutions like you mention. But I think risk vs reward is to great with intact warranty.

hawkfish007

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Quote from: -droid- on January 26, 2016, 07:01:41 PM

One heatsink in a b7 I have fell off when moving the miner to a diff location.

Could I potentially buy a small adhesive rPi heatsink to replace it?

I was told the following by Sherri. If it's not done right, you risk burning the chip.

"Carry and setting gently when assembling the hash boards. Since the heat sinks are glued on the hash boards directly(it is not firm enough), they can easily knocked off.

If there have heat sinks drop out from the hash boards ,please do not use it any more and contact us asap! You cant fixed it in your side or the warranty will be void！

If the boards are burnt due to lack of the heat sinks ,you need to cover the repair cost."

-droid-

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One heatsink in a b7 I have fell off when moving the miner to a diff location.

Could I potentially buy a small adhesive rPi heatsink to replace it?

opentoe

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Personal text my ass....

Quote from: baazju on January 25, 2016, 08:18:07 PM

Quote from: PeaMine on January 25, 2016, 07:04:19 PM

I'm in the US, where would be the best place to buy an S7 with a credit card?

Amazon.

In other news, got my batch 9 S7s in today. Three of them have issues with board 2. Sometimes it shows up, sometimes it doesn't. Sigh.

Anyways, I was playing with one of them and installed some of these fans http://amzn.to/1OTMULB and surprisingly it stays around 60 degrees. This is a pretty substantial noise difference. I guess you could just change the stock fan setting to 30-50% and make it quieter. But honestly Noctua makes a damn good fan.

I wanted to keep this S7 at my house instead of the data center. I have it outside in a small shed with an ambient temp of around 70 degrees. I'm impressed. I did under clock to 675 just to give me some buffer. The hottest it got today was 63, and has since dropped back into the 50s now that it is 5pm.

Are you sure? I use to use the Noctua Industrial 3000 fans on my S5's and with ambient temps at 70 it was difficult to keep temps below 65. Unless the S7's really run that much cooler or the temp sensor is in a really bad spot. Does the shed have an open window or something moving the air inside?

nhando

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Quote from: OgNasty on January 26, 2016, 05:39:44 PM

Quote from: lightfoot on January 26, 2016, 05:36:27 PM

Quote from: OgNasty on January 26, 2016, 02:51:07 PM

Quote from: Gornidah on January 26, 2016, 02:31:37 PM

Quote from: OgNasty on January 26, 2016, 02:27:28 PM

I received 2 replacements for dead boards that I sent to Bitmain. Within a couple hours one of the boards is dead again... What a waste of $ and time. I know their response is going to be for me to ship it to them again for repair, because they did so well at gaining my confidence the first time...

Oh man, that sucks Sad

Are you using their power supply?

No. I use EVGA PSUs. I've got several S7s running and the others have had no issues over a several month period.

Man that sucks, they should have someone fixing these things stateside.

What seems to be wrong with it?

I see that issue often. If you're lucky, reboot will fix that problem.

Also so far I've tested about 15 Batch 9 S7 and I noticed that 693M Frequency is pretty nice for cooling. I only lose about 50-70 GH but the box runs about 3-5C cooler on average. Are other people seeing similar or is it just my combo with my IBM 2KW PSU and EVGA G2?

notlist3d

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Quote from: OgNasty on January 26, 2016, 05:39:44 PM

Quote from: lightfoot on January 26, 2016, 05:36:27 PM

Quote from: OgNasty on January 26, 2016, 02:51:07 PM

Quote from: Gornidah on January 26, 2016, 02:31:37 PM

Quote from: OgNasty on January 26, 2016, 02:27:28 PM

I received 2 replacements for dead boards that I sent to Bitmain. Within a couple hours one of the boards is dead again... What a waste of $ and time. I know their response is going to be for me to ship it to them again for repair, because they did so well at gaining my confidence the first time...

Oh man, that sucks Sad

Are you using their power supply?

No. I use EVGA PSUs. I've got several S7s running and the others have had no issues over a several month period.

Man that sucks, they should have someone fixing these things stateside.

What seems to be wrong with it?

Dang I hope they get it fixed up this time, that does sound like a pain. Out of curosity when you say using EVGA PSU's are you using EVGA 1600's?

Just was curious on which EVGA PSU it was.

lightfoot

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I fix broken miners. And make holes in teeth :-)

Quote from: OgNasty on January 26, 2016, 05:39:44 PM

ASIC 31 appears to be shot. Interesting.

OgNasty

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Quote from: lightfoot on January 26, 2016, 05:36:27 PM

Quote from: OgNasty on January 26, 2016, 02:51:07 PM

Quote from: Gornidah on January 26, 2016, 02:31:37 PM

Quote from: OgNasty on January 26, 2016, 02:27:28 PM

I received 2 replacements for dead boards that I sent to Bitmain. Within a couple hours one of the boards is dead again... What a waste of $ and time. I know their response is going to be for me to ship it to them again for repair, because they did so well at gaining my confidence the first time...

Oh man, that sucks Sad

Are you using their power supply?

No. I use EVGA PSUs. I've got several S7s running and the others have had no issues over a several month period.

Man that sucks, they should have someone fixing these things stateside.

What seems to be wrong with it?

lightfoot

legendary

Activity: 3164

Merit: 2258

I fix broken miners. And make holes in teeth :-)

Quote from: OgNasty on January 26, 2016, 02:51:07 PM

Quote from: Gornidah on January 26, 2016, 02:31:37 PM

Quote from: OgNasty on January 26, 2016, 02:27:28 PM

I received 2 replacements for dead boards that I sent to Bitmain. Within a couple hours one of the boards is dead again... What a waste of $ and time. I know their response is going to be for me to ship it to them again for repair, because they did so well at gaining my confidence the first time...

Oh man, that sucks Sad

Are you using their power supply?

No. I use EVGA PSUs. I've got several S7s running and the others have had no issues over a several month period.

Man that sucks, they should have someone fixing these things stateside.

What seems to be wrong with it?

Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 74. (Read 527798 times)