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1  Economy / Service Announcements / Re: The official BitcoinPaperWallet.com thread -- updates and news. on: November 06, 2019, 03:55:03 PM
Would the new owner please make themselves known? Easier to use a service when you know who is behind it.

Thanks.
2  Bitcoin / Hardware / Re: Hacking BFL Monarchs and servicing them while times are weird. on: November 06, 2019, 03:51:50 PM
have an extra set of working pumps?

Sorry for the delay. Yes I do and I need to get rid of some of these parts. PM me.
3  Economy / Computer hardware / Re: WTS: 7x XFX Radeon RX580 8GB, 6x WD RED 6TB on: November 19, 2018, 04:47:47 PM
How well do the GPUs hash stably? Do you have the receipt, that you could provide for warranty purposes?

All are stable, and have not been mined much at all.

No international shipping.

Yes, I have receipts and will help if RMA necessary.

Please send private messages if interested, I don't check threads that often.
4  Economy / Goods / FS: Holiday Special -- Anything off Rakuten.com - 10% off on: November 14, 2018, 03:52:31 PM
For US48 shipping addresses only.

Process: You pick out items on Rakuten.com, proceed through checkout and give me the final cost to your mailing address. Multiply total by .9 and send me bitcoin @ preev rate, I order you the product on Rakuten and send you confirmation and tracking. Shipping times/costs vary based on vendor.

Thanks for looking!
5  Economy / Currency exchange / Re: [HAVE] $145 Paypal [WANT] BTC (1:1 green trusted user) on: October 05, 2018, 01:17:40 PM
I need another trade.

I have $145 Paypal and I need $145 BTC

I'd send the payment as fnf/gift

Trade complete. Magnavox delivered without issue.
6  Economy / Currency exchange / Re: WTB Bitcoin / Ethereum, paying with Paypal ( verified PP, can send as FnF ) on: October 04, 2018, 07:14:57 PM
Update: $500 left in my Paypal. Willing to trade it for BTC at a 1:1 rate, based on preev.com price.

YGPM
7  Economy / Computer hardware / Re: WTS: 7x XFX Radeon RX580 8GB, 6x WD RED 6TB on: August 24, 2018, 08:41:37 PM
Bump. Prices dropped.
8  Economy / Computer hardware / WTS: 7x XFX Radeon RX580 8GB, 6x WD RED 6TB *SOLD* on: August 17, 2018, 05:44:44 PM
Good day.

I have seven (7) XFX Radeon RX580 8GB cards for sale. These are gently used in data center conditions and less than a year old. They were mined for a couple months and have been collecting dust since. Bare cards, no box/accessories. $110/ea OBO plus shipping.

https://www.neweggbusiness.com/Product/Product.aspx?Item=9B-14-150-803

I also have six (6) used WD RED 6TB drives. These are a couple years old but still work fine. $80/ea OBO plus shipping.

Accept BTC, ETH, PP for good rep members.

Thanks.
9  Bitcoin / Hardware / Re: Hacking BFL Monarchs and servicing them while times are weird. on: July 20, 2018, 08:19:24 PM
Anyone need parts? I have a few non-working units.
10  Bitcoin / Project Development / Experienced IT Pro looking for opportunities in crypto/blockchain. on: June 15, 2018, 07:46:50 PM
Adaptable IT Manager/Pro that would be a good asset to a startup team. Open to remote work, part/full time, or relocation for the right opportunity.

I have some limited development experience with PHP/Python, javascript and Hyperledger but I'm looking for a technical research/writing, project management, systems administration, or a sales/marketing role.

Check out my LinkedIn in my profile or send a PM for resume.

If the thread is still up, I am still looking.
11  Economy / Computer hardware / Re: [WTS] 8xS7 bitcoin miners on: June 15, 2018, 07:10:50 PM
Anyone got any interest in these - they're from hashnest as redemption miners.

I'd like 0.2BTC for all 8 plus shipping if possible (but I'll accept offers - negotiate).

0.025BTC per miiner that works out as.

I'm up for negotations.

What is hashnest?

Bump for you.
12  Other / Meta / Re: Stake your Bitcoin address here on: March 02, 2018, 08:15:34 PM
This is my address, please quote.

1HauPsHckiHWikBw59QoSxNV5xAy9a4xwi
13  Bitcoin / Hardware / Re: Hacking BFL Monarchs and servicing them while times are weird. on: March 01, 2018, 04:33:04 PM
Great! Post how you did it (include things like did you remove the old compound from the chips, what you put on, screw torque amounts, etc) so other people can do this as well.

The Ebay coolers are a bargain....

Would I be able to take the pumps off a working 400mhs Unit and install them on a 700mhs?


Probably. I did this once to test the problematic 700mhs unit I had, prior to getting the new units. I was never able to figure out the 700 unit I had that was hashing at 400 - 460. It wasn't cooling or power.

These units are very interesting. I'm impressed that BFL was able to produce such a decent unit (albeit hot-running and below performance expectations) given all of their failings.
14  Bitcoin / Hardware / Re: Hacking BFL Monarchs and servicing them while times are weird. on: March 01, 2018, 04:27:24 PM
Great! Post how you did it (include things like did you remove the old compound from the chips, what you put on, screw torque amounts, etc) so other people can do this as well.

The Ebay coolers are a bargain....

I bought the bulk package for $75. I have extras now. They came with the compound on the HS and I removed what was on the units with alcohol. I screwed the back brackets on opposing ends until the flexion on the bracket was almost inverted. It's very similar to a GPU HSF. One issue I had was a bracket was missing the rubber standoffs, but I had some rubber I cut to put in its place.


Sorry, but I didn't take pictures and I sold the Monarchs I had.
15  Bitcoin / Hardware / Re: Hacking BFL Monarchs and servicing them while times are weird. on: February 01, 2018, 09:47:25 PM
I have two Monarchs that seem to have faulty temperature sensors and they stop hashing very quickly after bootup. Any way to fix the problem?

I have another with 15% HW error rate, any ideas on this?
15% error rate is not a big deal, a few engines are screaming but they don't really pull power. As long as it hashes well let it be.

As for the faulty temp sensors, are you sure the water blocks are running? Listen for the water at the radiator top, then check around to see if there are any signs of leaks around the water blocks/pumps.

C

I believe you are correct, sir.

I can hear fluid when I shake it, but I can't hear any fluid moving when I turn it on. I can tell at least one of the pumps initiates, but the copper blocks heat up immediately, some shares are accepted and then when the temp reaches 85 they shut down. Too little fluid perhaps. I have ordered new cooling units, I'll see if that fixes the issue.

Another issue, I have a 700gh unit that only hashes at 320gh with bfg 4.10 and 400 with BFL custom bfg 4.2. Could this be another cooling issue with one of the units shutting down?

I am having the exact same issue with my 700gh unit. What time s the other cooling unit u are ordering? Do you have a killawatt attached to see wattage draw? Mine seems to spike over 750 watt usage when I turn it on

Good news. Lightfoot was correct, the issue was the coolers. I replaced the two non-functioning units and the monarchs are now hashing along nicely. I am going to try replacing the cooler on the 700GH unit tomorrow.
16  Bitcoin / Hardware / Re: Hacking BFL Monarchs and servicing them while times are weird. on: January 31, 2018, 03:43:14 PM
I have two Monarchs that seem to have faulty temperature sensors and they stop hashing very quickly after bootup. Any way to fix the problem?

I have another with 15% HW error rate, any ideas on this?
15% error rate is not a big deal, a few engines are screaming but they don't really pull power. As long as it hashes well let it be.

As for the faulty temp sensors, are you sure the water blocks are running? Listen for the water at the radiator top, then check around to see if there are any signs of leaks around the water blocks/pumps.

C

I believe you are correct, sir.

I can hear fluid when I shake it, but I can't hear any fluid moving when I turn it on. I can tell at least one of the pumps initiates, but the copper blocks heat up immediately, some shares are accepted and then when the temp reaches 85 they shut down. Too little fluid perhaps. I have ordered new cooling units, I'll see if that fixes the issue.

Another issue, I have a 700gh unit that only hashes at 320gh with bfg 4.10 and 400 with BFL custom bfg 4.2. Could this be another cooling issue with one of the units shutting down?
17  Bitcoin / Hardware / Re: Hacking BFL Monarchs and servicing them while times are weird. on: January 26, 2018, 07:38:28 PM
I'm having major issues with my 750GH/s Monarch. When i plug my 500GH/s versions into my PSU, they work fine. But when i plug my 750GH/s model in, nothing happens. I have to turn the PSUoff and on again to get it working with my 500GH/s model. Please help!

I have a couple that are doing weird things as well, I will try underclocking based on Kuschelweich's post and report back.
18  Bitcoin / Hardware / Re: Hacking BFL Monarchs and servicing them while times are weird. on: January 23, 2018, 06:13:54 PM
I have two Monarchs that seem to have faulty temperature sensors and they stop hashing very quickly after bootup. Any way to fix the problem?

I have another with 15% HW error rate, any ideas on this?

Error rate is only this high with the custom BFL bgfminer 4.2. On 4.10 it seems better and hashrates are higher. However, I'm getting a "failed to find work for queue results" on one Monarch and the two with temp monitor issues do not show up at all.
19  Bitcoin / Hardware / Re: Hacking BFL Monarchs and servicing them while times are weird. on: January 23, 2018, 05:20:37 PM
I have two Monarchs that seem to have faulty temperature sensors and they stop hashing very quickly after bootup. Any way to fix the problem?

I have another with 15% HW error rate, any ideas on this?
20  Economy / Computer hardware / Re: [WTS] BFL Monarchs 500gh-700gh (thousands of them) on: January 17, 2018, 10:39:53 PM
I received one box yesterday and one today. The first 3 were packed well and are in good condition. They hash just fine. I haven't opened the second box but I anticipate the same.

Good price for these even if they are inefficient. Good seller and I would buy from graymatter again.

I used the BFL BFGMiner variant here: https://bitcointalk.org/index.php?topic=759398.0



Were all 3 500gh or did you get some 700gh as well? Do they have 2 pcie power plugs or 3? The older ones have 2 I think.

Was seriously thinking about order a pack of these, but I'm kinda glad I didn't yet as the profitability took a huge nose dive down to like 15 cents a day  lol.

500GH, 3 plugs.
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