Search content
Sort by

Showing 11 of 11 results by alf5
Post
Topic
Board Digital goods
Selling 33 x $55 off coupons for $10 each
by
alf5
on 28/11/2018, 01:13:15 UTC
https://www.bitMaint.com

33 coupons
each for $55 off

Good for any miner as long as not more than 50% of cost

selling for $10 each in packs of 10 min

Accept paypal or crypto
Post
Topic
Board Digital goods
Re: WTB: Bitmain $350+ vouchers
by
alf5
on 31/03/2018, 20:48:38 UTC
coupon 350 USD qty 10  - $100 each
coupon 420 USD qty 20  - $115 each

Post
Topic
Board Digital goods
Re: [WTB] Bitmain Coupons - $300, $450, $500
by
alf5
on 28/03/2018, 13:13:19 UTC
I have these for sale at 60% off face value.

20 x 220 USD
20 x 100 USD - 70% off face value
12 x 200 USD
10 x 140 USD

PM if interested.
Post
Topic
Board Auctions
20 $220 USD BitMain coupons selling for 50% face value
by
alf5
on 16/03/2018, 00:06:45 UTC
I'm selling my bitmain coupons at 50% off face value.  Will take BTC or ETH

Coupon 220 USD qty 20
Coupon 140 USD qty 10

PM if interested.  Coupons expire in June so plenty of time to use them. 

Post
Topic
Board Service Discussion
Re: ANTMINER S7/S9 Boards - Who repairs them !!! Surely someone does ???
by
alf5
on 03/02/2018, 16:42:51 UTC
I have a couple bad boards thinking of using the Kuala Lumpur place.  If anyone has experience with them pls post.

I've used Bitmainwarranty.com  with mixed results.

-First time no issues
-Second time board came without or very little heatsink glue so had to glue it myself.  Took 6 weeks.
-Third time board stopped working a couple weeks later. 
Post
Topic
Board Service Announcements
Re: [ANN] The Hedge Coin Group - Bulk Miner Hosting & Sales - 50 MW - Fraud?????
by
alf5
on 22/01/2018, 15:53:53 UTC
My short analyses of TheHedgeCoinGroup:

I too have been exchanging a few emails with them looking for a new hosting location.

I also spent a bit of time researching anything I could find related to them on the web - looking for indications if it is legit OR fraud……

My conclusion is that there is a medium to high probability this is fraud.  Not conclusive, but highly likely. Would love to be proven wrong.

Below are my reasons leaning towards being fraudulent:

a. Only accepts bitcoins as payment and no wire transfer.
b. Domain registered only 3 months ago:  Creation Date: 2017-09-08T16:35:42.00Z
c. Domain with private registration. 
d. Elusive with photos/images.
e. Unable to verify identify of individuals I exchanged emails with. Very little on  linkedin, web  searches, china's version of linked in, etc
f. Large inventory of many machines types available when I inquired about purchasing machines.   No one has inventory like this sitting around.
g. Text on web site seems to be copied from other sites.
h. Claims to be in China with mining location in Mongolia, but a bit of forensic analyses on source email appears to indicate who ever emailed me did so on a browser from of Alberta, Canada.  This is the needle in the haystack.

I exchanged emails with Vince and analyzed everything I could in the header, writing styles, etc.
The email was generated using Microsoft office 365 and owa.

Emails originating from ip: 184.68.199.50
This is visible in the headers we can see:

   authentication-results: spf=none (sender IP is ) smtp.mailfrom=info@thehedgecoingroup.com;
   x-originating-ip: [184.68.199.50]

Ip 2 Location lookup on IP 184.68.199.50 indicates a physical location of  Canada, Alberta, Calgary, from Shaw Communications Inc.

A bit more research -- this is tied to  DSL line in Canada from Shaw Communications

A bit more search... isp ip also in an SFP record for www.patchingassociates.com
   "v=spf1 mx ip4:184.68.199.50 include:spf.protection.outlook.com -all"

A bit more research... ip 184.68.199.50 is running a public facing ftp server.

A bit more search the ftp server is running on plain text, no tls/sftp and appears to be an old version.  My guess this is how they got into the server.  A very common exploit pattern by guessing a uid/pwd OR  exploiting some unpatched vulnerability.  This is a good way to cover your tracks......

Conclusion:

If I were to guess, they are using a compromised server in Alberta, Canada belonging to PatchingAssociates.com to use Web Mail in office 365 to cover up their tracks.  Server in Alberta, Canada belongs to www.PatchingAssociates.com  which has nothing to do with mining operations and appears to lack security on their ftp server........too many steps have been taken to cover up and hide identity - private domain registration, cloud flare for web site hosting, using server/pc in Canada for web mail, and only accepting bitcoins for payment.   

Stay safe out there!!!!
Post
Topic
Board Mining (Altcoins)
Re: Alternative PSU for innosilicon a4+
by
alf5
on 07/01/2018, 04:16:10 UTC
Hi - did you find a good source / alternative ?
Post
Topic
Board Project Development
Re: [PUBLIC - FREE] Bitcoin Product Signaler (Telegram Bot)
by
alf5
on 06/01/2018, 17:29:47 UTC
THanks!!!
Post
Topic
Board Service Announcements
Re: [ANN] The Hedge Coin Group - Bulk Miner Hosting & Sales - 50 MW - Mongolia
by
alf5
on 05/01/2018, 19:49:24 UTC
Web site appears to be turned off by CloudFlare???
Post
Topic
Board Hardware
Topic OP
Antminer S9 - Won't upgrade to new firmware - Any ideas on what to try?
by
alf5
on 23/10/2016, 16:42:16 UTC
Hi,

In one of my Antminers S9 i upgraded to the new firmware 3 days ago. This is the new firmware that took 20-30 misn to start and did the auto frequency.  This S9 now stops hashing randomly.....from 20 mins to 10 hrs after a reboot.  Only a reboot gets it going again.

I've tried to downgrade to various other firmware and also install the latest and greatest firmware released yesterday.  It all errors out:

mkdir: can't create directory '/mnt/config/home/usr_config': No such file or directory cp: can't create '/mnt/config/home/usr_config/mac': No such file or directory runme.sh: cd: line 71: can't cd to /mnt/upgrade/upgrade cp: can't create '/mnt/upgrade/upgrade/angstrom_rootfs.jffs2': No such file or directory cp: can't create '/mnt/upgrade/upgrade/runme.sh': No such file or directory cp: can't create '/mnt/upgrade/upgrade/upgrade-marker.bin': No such file or directory

Any ideas on what to try next?  I have a ticket open with bitmaint, but curious anyone has seen this before??

Thanks!!!!
Post
Topic
Board Hardware
Topic OP
Antminer S9(b14) - New firmware - 20 mins to startup -Where to get old firmware?
by
alf5
on 20/10/2016, 21:01:35 UTC
Hi Folks,

I have a set of S9s batch 14.  Decided to upgrade the firmware on one of the units and it now takes 20 mins to come up.  Any mining changes seems to take 20 mins to kickin. Doesn't seem to be the most stable thing in my miner.

Anyone know were to get the older S9 firmware??  Bitmaintech only lists the latest to download....

thanks!!!