Topic: btt - page 94. (Read 407344 times)

What is your nick on cointron?
Have you received a full refund by BTCFPGA?

BTW: Good decision to switch to Litecoin.

Huzzah for redundancy!

Xincom twin wan router ordered for failover. I've currently only one reliable ISP, shopping for a second before our Avalons go live. A single point of failure will not be allowed to halt our Bitcoin production if it's avoidable.

Fortunately real work is beginning to lighten up a bit, so I should be able to devote more time to our mining company going forward. I'm in the early planning stages of designing and installing 220/240v infrastructure for our coming Avalons. I survived one year of trade school instruction in industrial electricity so the wiring should be pretty straightforward despite my rustiness.

I have one of these UPS units in mind for our initial infrastructure:

http://www.amazon.com/CyberPower-PR5000LCDRTXL5U-Smart-Sinewave-5000VA/dp/B003N6WF2O/ref=sr_1_1?ie=UTF8&qid=1365088347&sr=8-1&keywords=PR5000LCDRTXL5U





Product Features
5000VA/4000 Watts - GreenPower UPS
Pure Sinewave, Line-Interactive, AVR
Intelligent LCD Diagnostics
SNMP/HTTP, 5U Rack/Tower, 5 Outlets
Extended runtime capable with optional BPL48V75ART2U Battery Packs
5000VA / 4000 Watts - Green Power UPS
HTTP, 5U Rack/Tower, 5 Outlets

Technical Details
Brand Name: CyberPower
Model: PR5000LCDRTXL5U
Item Height: 8.75 inches
Item Length: 24.25 inches
Item Width: 17 inches

Product Details
Product Dimensions: 24.2 x 17 x 8.8 inches ; 222 pounds
Shipping Weight: 598 pounds (View shipping rates and policies)
Shipping: Currently, item can be shipped only within the U.S.
ASIN: B003N6WF2O
Item model number: PR5000LCDRTXL5U
Batteries: 8 Nonstandard Battery batteries required. (included)

I chose these because they seem to be well built and well received. It's also one of few suitable units sold by bitcoinstore:

https://www.bitcoinstore.com/cyberpower-smart-app-sinewave-pr5000lcdrtxl5u-5000-va-rack-mountable-ups.html

...and at a great price too. (((bitcoinstore)))

I'm no expert on UPS's anyone got any input before I pull the trigger?

Moar details:

Manufacturer   CyberPower Systems, Inc
Manufacturer Part Number   PR5000LCDRTXL5U
Manufacturer Website Address   www.cyberpowersystems.com
Brand Name   CyberPower
Product Line   Smart App
Product Model   PR5000LCDRTXL5U
Product Name   Smart App Sinewave PR5000LCDRTXL5U 5000 VA Rack-mountable UPS
Marketing Information   
The CyberPower Smart App Sinewave PR5000LCDRTXL5U uninterruptible power supply (UPS) safeguards mission-critical servers, telecom equipment, VoIP and internetworking hardware that require seamless Pure Sinewave power. Its full automatic voltage regulation (AVR) boost/buck topology delivers a consistent and clean AC power, protecting connected equipment and preventing costly business interruptions. Patented GreenPower UPS advanced circuitry reduces UPS energy costs by up to 75% compared to competitive models.
Product Type   Line-interactive UPS
Plug/Connector Type   NEMA L6-30P
Receptacles   
3 x NEMA L6-30R - Battery/Surge-protected
2 x NEMA L6-20R - Critical Load
Switching Time   4 ms
Dataline Protection   
RJ-11 Phone
RJ-45 Ethernet
Load Capacity   5 kVA/4 kW
Input Voltage   220 V AC
Input Voltage Range   
208 V AC to 240 V AC
148 V AC to 254 V AC Mains Operation
131 V AC to 268 V AC Adjustable Mains Operation
Output Voltage   208 V AC Battery Operation
Frequency   
50 Hz Input
60 Hz Input
60 Hz
Filtering   EMI / RFI
Network Management   SNMP Manageable Optional
Overload Protection   
Resettable Circuit Breaker
Emergency Power OFF   Yes
Interfaces/Ports   
2 x DB-9 Serial
1 x USB
Batteries   16 x Maintenance-free Sealed Lead Acid User Replaceable Hot-swappable
Backup/Run Time   
0.18 Hour 4 kW Full Load
0.52 Hour 2 kW Half Load
Battery Recharge Time   8 Hour Typical
Height   8.8"
Width   17.0"
Depth   24.3"
Form Factor   5U Rack-mountable
Weight (Approximate)   222.00 lb
Package Contents   
Smart App Sinewave PR5000LCDRTXL5U 5000 VA Rack-mountable UPS
PowerPanel Business Edition CD
Certifications & Standards   
FCC Class A certified
UL 1778
CSA C22.2 No. 107.3-05
cUL
Software Included   PowerPanel Business Edition
Green Compliant   Yes
Green Compliance Certificate/Authority   RoHS
Limited Warranty   3 Year

That one says weight 222lbs. Wonder why the discrepency. Perhaps it's with/without batteries as these are surely the greatest portion of the weight. 

'cept I switched to coinotron for stratum. I was getting a very high stale rate.

Not yet updated in the spreadsheet

Umm...



All GPUs are mining LTC @ kattare.com. That's one way to boost our dividends.

I'm a LTC bull as well, sure seems like they're here to stay.

Hey thanks man! Just tryin' not to step on too many economic landmines.

I'm all up for looking for good deals for GPUs, as LTC is getting a good value at the moment which can do good for dividends rather than spending from the reserves.
At the current difficulty you can easily increase the daily dividends by 0.05BTC/day per GPU assuming you are getting 7950. GPUs will still be decent even after ASIC delivery as LTC is gaining value now. So I'm all for GPUs rather than pay divs from treasury

I know you do not like to manage more GPUs than what you've already have, but the return would be better than spending from treasury

Keep up the good work creativex   

This has always been my model for our company. We tack on ASIC hashing power via pre-orders when it makes sense while building our reserves for large purchase(s) when time to delivery is reduced and with it the risk of the unknown. If I had any confidence at all that BFL could deliver even two 750Gh "little" minirig SCs in a reasonable time frame I'd consider it an option, but it sounds like they're having inconsistent chip results. In retrospect a larger batch 2 Avalon order would have been justified, but that was anything but clear at the time.

If Avalon is able to begin shipping in just a few weeks time then we could potentially have an ASIC hashing for us next month. Thanks for the input gents.

Like I said before, I think more hashes is more valuable. I would rather keep the coins and get something better later. For example, 424 BTC (@ $80) is more than enough to buy a BFL Mini-Rig... 1.5TH/s.  Who knows if BFL will ever deliver, but Avalon or even Asciminer might pick up the slack on something like this.

Anything to make more coins

I've considered that as well. With the large gain in the exchange rate GPUs are very much profitable again. We'd likely have little trouble seeing a positive ROI if we purchased a few 7950s that could be converted to LTC mining later. Frankly I'm not too keen on the idea of managing more GPUs at this point, but we could potentially sell some of our older less power efficient GPUs and replace them with more efficient better performing 7950s.

https://www.bitcoinstore.com/advancedsearch/result/?q=radeon+7950

I also am fine with the decreasing dividend as I am aware of the upgrade path already.  If you were to find a great deal on a GPU or FPGA for now wouldn't be a terrible thing to use a small amount on, but it would have to be a screaming deal or in the GPU dept, something easily resellable.

Thanks for the input fellas, you all make valid points. My thinking was simply that we already have ASICs on the way and still have ample reserves. There's just nothing to spend them on ATM that makes sense long term. I suggested a relatively small fixed dividend amount so as to stabilize our yield without significantly reducing our reserves...about .04BTC/day currently. Seems the concept is less popular than I'd have guessed.

Oh, I missed that! Thought bASIC-MINING was still directing a portion of the mining proceeds to growth / reinvestment.

bASIC-MINING isn't a large corporation, and the funds were held for future investment in mining hardware. Actually, I don't think this new proposed dividends would make much difference to the treasury, batch 2 should be shipping late April & the difference is quite small. A bit pointless IMO.

EDIT: And how is it "win win" exactly? It's not like they are free coins coming out of nowhere.

Yes, it was the asset's first motion: passed on Jan 3, 2013

Oh, it already is? Do you know when this started?

bASIC-MINING is already running in this mode.

Many large corporations do this, just not structurally.