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Showing 20 of 69 results by bcollan
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Topic
Board Group buys
Re: [OPEN] Prisma 1.4Th/s group buy @ 1.42 btc with coupon
by
bcollan
on 07/10/2014, 03:29:05 UTC
One for me!
I need it like I need a hole in my head, but I can't resist. At least winter is coming. More BTC subsidized heating!

txid: 4828ac5d948f88ea756e0eecab19bc85de8b0eaf7ae42118c62a29eb51fa1e48
Post
Topic
Board Hardware
Re: ASICMiner Tube Sales Information Thread [Round3, Price at <1btc per TH/s]
by
bcollan
on 17/09/2014, 22:55:46 UTC
+100 @ philipma1957

I turned handles "outward" and added a fan, FINALLY got these Tubes to stop with the thermal runaway. Also +1 @ friedcat "they" handled the RMA on my burned up board, no additional costs.

 Grin

Gee, I can't see why you guys are having any thermal issues at stock clock speeds. My 3 have been running continuously at 2.4T in the quite warm (90F+) mining area of my basement. With 1 fan, though the handles are pointing outwards. I hate to mention this, I'm only trying to help, but you guys are peeling the plastic from both sides of the thermal pads before use???  Embarrassed

I had to ask since my three have been amazingly reliable and robust so far...
The air coming out the center is as hot as a BIG blow dryer, and the chips are too hot to touch, so I'm wondering about longevity, but as long as they hash for six months I'm fine. Wink
Post
Topic
Board Hardware
Re: ASICMiner Tube Sales Information Thread [Round3, Price at <1btc per TH/s]
by
bcollan
on 07/09/2014, 18:28:18 UTC
My 3 tubes are hashing  at  196 to 210 GH/S per board for 2.45TH/S total at stock clock, with 1 stock fan.

Am I just lucky, or is it something I've done differently?

Well, I'm not sure, so here are my observations.

1. I think assembly technique is important. I applied the thermal pads to the heat sinks first, then made sure there were no air bubbles under the pads. Then I used an impact driver to tighten the screws in a random pattern so as to equalize board contact with the heat sink. I have the fan blowing "in", and faced the handles "out" as some others recommended.

2. I used high quality power supplies providing at least 250watts per blade.

3. I placed the tubes on a wire rack shelf providing airflow to all four sides.

4. I'm using Slush's pool with bfgminer 4.7 as a proxy. I know it should work fine without the proxy, but I hesitate to mess with success. Wink

You are using one or two pcie power connector per board ?

Only one for now. It's near impossible to find power supplies with 8 independent pcies, e.g. separate cables all the way back to the ps.
Post
Topic
Board Hardware
Re: ASICMiner Tube Sales Information Thread [Round3, Price at <1btc per TH/s]
by
bcollan
on 07/09/2014, 17:08:38 UTC
My 3 tubes are hashing  at  196 to 210 GH/S per board for 2.45TH/S total at stock clock, with 1 stock fan.

Am I just lucky, or is it something I've done differently?

Well, I'm not sure, so here are my observations.

1. I think assembly technique is important. I applied the thermal pads to the heat sinks first, then made sure there were no air bubbles under the pads. Then I used an impact driver to tighten the screws in a random pattern so as to equalize board contact with the heat sink. I have the fan blowing "in", and faced the handles "out" as some others recommended.

2. I used high quality power supplies providing at least 250watts per blade.

3. I placed the tubes on a wire rack shelf providing airflow to all four sides.

4. I'm using Slush's pool with bfgminer 4.7 as a proxy. I know it should work fine without the proxy, but I hesitate to mess with success. Wink
Post
Topic
Board Group buys
Re: [OPEN] ASICMiner Tube Group Buy #2
by
bcollan
on 29/08/2014, 23:14:29 UTC
Got my 2 tubes running on 1 controller, no problems, no hiccups, no issues at all.
Getting a steady and stable 1.6T since last night on poolside on Slush. Sorry, my kill-o-watt died so I can't verify draw at the wall.
I'm using bfgminer 4.7 as a proxy, but I hear Slush got it working w/o a proxy so I'll have to try that.

Otherwise, I LOVE this product. The engineering on the kit is far superior to the usual BTC world crap. The tube concept with one fan and interlocking heatsinks is great and very efficient for cooling. And I really like being able to run 8 tubes from one controller. The other good choice was using a thermal pad instead of paste, mainly due to the apparent lack of workers skilled in thermal paste application techniques.

So kudos to friedcat, and kudos to canary for running this GB and superbly handling the daunting task of packaging all these units, and so quickly!

Now if only AM could improve efficiency a hair, they could give Bitmain some tough competition.
Post
Topic
Board Group buys
Re: [OPEN] ASICMiner Tube Group Buy #1
by
bcollan
on 20/08/2014, 21:48:33 UTC
One more for me canary, Grin

tx:https://blockchain.info/tx/37bb92988569eec27a0cb3dff8faf9646acc3051b2dd6c68819409fe00ff26b5

Thanks!
Post
Topic
Board Group buys
Re: [OPEN] ASICMiner Tube Group Buy #1
by
bcollan
on 17/08/2014, 02:47:10 UTC
1 for me too please! Cool

TX:https://blockchain.info/tx/96b6e576b1a5e3d7c9f27fc257e2a1490413bc3f2aced4ec9ab3d843ffdc5c30
Post
Topic
Board Hardware
Re: ANTMINER S3 Discussion and Support Thread.
by
bcollan
on 23/07/2014, 21:12:06 UTC
Got my two last evening.
Both hashed all night about 440gh/s-450gh/s @pool. Grin

No problem with beeping, they're in the basement.  Cool
Post
Topic
Board Hardware
Re: ANTMINER S3 Discussion and Support Thread.
by
bcollan
on 19/07/2014, 00:10:29 UTC
Batch 1 not shipped yet...

Pay Details
Pay    1.5 BTC
Pay Confirm    1.5 BTC
Date    2014-06-30 19:47:58
Send Details
Unshipped
Order Details
Product    Total
ANTMINER S3 × 2

   1.5 BTC

Sent BITMAIN an email yesterday:
Quote

Bitmain,

My A3 batch 1 order has not yet shipped while others have received their orders today. Being that I ordered on 6-30 at 19:30:48 and paid the same 1.5 BTC as the others, I feel that some compensation is in order for those of us receiving their miners 5+ days later.

I understand that you are trying your best to ship orders out the door and I am grateful for all you have accomplished, but this S3 rollout is dangerously close to the failed "preorder" model you have been wise to ignore in the past.

Regards,

Bill Collan
ID: bcollan


Their response:
Quote
Hi,
we're shipping out the units and you'll get the tracking number very soon.
please wait for the tracking number in your account.
thanks for your understanding and patience.

Best Regards

BITMAIN


No mention at all of comp. Undecided
Post
Topic
Board Hardware
Re: ANTMINER S3 Discussion and Support Thread.
by
bcollan
on 15/07/2014, 14:17:40 UTC
Coupon.. refund.. shipping..

Hum why do I have 4 S3 coupons and and 4 S2 coupons..?  Something about being a B1 customer for the S3..?  

The S3 will still be shipping out at somepoint I assume...?  This 7.5% refund isn't going to cancel my order if I take it will it...?!

if your not going to use a S2 coupon send one my way…

bitmain account dlowings…

thanks

Same here!
Post
Topic
Board Hardware
Re: The last Batch of AntMiner S2 1TH/s Miner, $1850 per unit, Shipping on June 26th
by
bcollan
on 25/06/2014, 04:25:06 UTC
I offer 0.1btc donation for 1 s2 coupon expiring june 26/27.
Post
Topic
Board Group buys
Re: RockMiner $75 | RK-Box $599.99 | Gridseed Blades CC's Accepted
by
bcollan
on 23/06/2014, 18:00:33 UTC
The site says sold out of rockets. Any idea when they will be available again?
Post
Topic
Board Hardware
Re: The Habanero - 650GH/s - Batch 2 Shipping June 9th, $850 ($1.3/GH/s)
by
bcollan
on 19/06/2014, 17:08:02 UTC
I'm running cgminer on an ARMv7 linux (ubuntu)  platform.
Post
Topic
Board Hardware
Re: The Habanero - 650GH/s - Batch 2 Shipping June 9th, $850 ($1.3/GH/s)
by
bcollan
on 19/06/2014, 16:59:28 UTC
Help!
One of my habbies died this morning. They were both happily hashing away for days @825 when I noticed that one of the habbies stopped hashing and went zombie. Tried resetting everything but same result. Tried turning hash clock down to 500 and same result. The board powers up fine, but when it's asked to hash it appears to go through a reset, over and over, each time cgminer detects it and tries hashing.
Anyone have any ideas for me to try?

*edit*
I'm getting this error from cgminer:
[2014-06-19 17:03:44] ERR: Asked to memcpy 0 bytes from usbutils.c _usb_read():3065
[2014-06-19 17:03:44] HFA : OP_USB_INIT failed! Operation status 20 (Regulator programming error)

*edit 2*
Oops, never mind. Embarrassed
Just had a loose PCI-e connection.

These things are built like tanks, aren't they? Cool
 
Post
Topic
Board Group buys
Re: [WORLDWIDE]Bitmine - 950 GH/S 1500 USD - Next day delivery.
by
bcollan
on 09/06/2014, 15:17:47 UTC
I'm happy with mine doing 900GH/s at the pool, especially for the $1500 shipped price I paid.
At that price I might be tempted to "roll the dice" again, but certainly NOT for $1750+ shipping.
Post
Topic
Board Hardware
Re: [Antminer S1 Sales open] Price changes daily, now 0.414 BTC for 180GH/s
by
bcollan
on 08/06/2014, 14:27:55 UTC
In order for the wireless to work properly, I found that you must put the wired IP on a different subnet than the wireless.
Since my home wireless router is 192.168.1.1, I had to change my ant's wired IP from default of 192.168.1.99 to 192.168.2.99.
This works flawlessly for all 16 S1s that I have using wireless connections.
Post
Topic
Board Group buys
Re: [WORLDWIDE]Bitmine - 950 GH/S 1500 USD - Next day delivery.
by
bcollan
on 07/06/2014, 03:05:55 UTC
Mine's been hashing fine since I got it a few days ago, but even with tweaking the blade freqs, I can't get over 900GH/s poolside.
Post
Topic
Board Group buys
Re: [WORLDWIDE]Bitmine - 950 GH/S 1500 USD - Next day delivery.
by
bcollan
on 04/06/2014, 20:14:38 UTC
Can't login to this miner.  Tried to direct connect with a PC and put it on both 192.168.1.1 and 192.168.0.1 network, but I'm unable to scan the miner using Angry IP Scanner.

Is there a step I'm missing, do I have to do anything with the Raspberry Pi before I try logging in?

I think it's on a different subnet like mine was. I couldn't find it on my network so I reimaged the SD which defaults back to 192.168.1.134.
Post
Topic
Board Group buys
Re: [WORLDWIDE]Bitmine - 950 GH/S 1500 USD - Next day delivery.
by
bcollan
on 04/06/2014, 20:09:40 UTC
I got my miner today.
It's one of the black ones with 4 fans that sounds like an old 707 Wink
It's loaded with dust on the fans and blades...obviously "well tested", but it hashes at 960GH/s and it cost me $1500 delivered, so yeah, that's OK with me.

The only problem I had was not being able to find the ip on my network, so I reflashed the SD and that did it.
Post
Topic
Board Hardware
Re: The Habanero - 650GH/s - Batch 2 Shipping June 9th, $850 ($1.3/GH/s)
by
bcollan
on 04/06/2014, 17:13:02 UTC
I took my h100i off the board to attach it like the picture and now it's not working , doh.

I'm getting a libusb error pipe, libusb not found error.

Hashfast detect failed to initialize incorrect device.

The device keeps adding and disabling the device with those previous errors.

I'm using minepeon  2.4.6 with cgminer 4.3.4.





I also had this problem when I wasn't getting enough air flow across the board. Make sure the tubing's not contacting the board preventing cool air from getting to the components.