does the antminer S1 use cron/crontab?

It would be interesting to be able to set cron events to match time-of-use billing for electricity use.

for example, if you pay more from 11am until 5pm:

have crontab event start at 11am (convert the antminer to the right timezone or more simply do the math yourself and avoid changing fromt he shanghai timezone on every unit)
change frequency to a lower value
restart cgminer (just cgminer if possible rather than the entire antminer)
at 5pm, have cron change the frequency back to the higher value once power is cheaper (and when you are less likely to be making your location even hotter than it is in summertime)

i think it is partly a restriction of the operating system (windows 7 can handle 5 GPU and windows 8 can handle 6 IIRC). most linux distros are only capable or 6 GPUs

also, price and redundancy. having common components means its easier to have multiple ~$200 mobo/cpu/ram combinations than a single system with a $200-1000+ expansion device

here's hoping the next gen of these chips will come - the concept and layout seems nice but its about 5w/GH and the board almost certainly costs more than the ~$20 pricetag it would be lucky to have

you bought the coupons - trying to return them for a refund is really unethical, since thats a kind of no-takebacks purchase.

seriously, why are people paying for these? I have almost two dozen S2 coupons that i will give away to quality forum members or 5 coupons ($2000 off) for 0.1BTC

not sure if you are asking about my cables (bare wires to PCIe) or the PCIe to 5mm jacks in the image.

I am still selling the wires in my first post, and they are 16awg. terrific for linking a server or specialized 12V source to a PCIe compatible miner

be careful bridging. if one supply runs at 11.8V and the other at 12.2V there can be a significant amount of power carried across that bridge

custom chip - failed
custom DC - scarcely a success (should have been over 170GH already, but instead the only news is that its due to a single ac problem that was solved days ago)
hardware sales - $1999 for 500GH or $899 for 750GH  (seriously, whats up with this? I think minerpart is right)
http://virtualminingcorp.com/ - an absurd failure (the front page advertises a 64GH miner for $2099, and talks about a custom easic chip)

there is no meaning behind words, only actions. and kens actions are as questionable as ever.

use one PSU per blade - the blades dont share 12V so you wont have any conflict between the 12V sources. I do it all the time when i use a pair of 800W supplies to run 3 antminers (1.5 ants each)

turn the one for the secondary blade on first, followed ASAP by the primary blade (with the control board). This way the control board will see both blades when it starts booting up.

to be honest, its not even just the thermal density - its the damn fans. (presumably the psu fan is loudest, as is common for server power supplies to sound like nails on a chalkboard in a rainstorm). A 3TH/3U version would allow 120mm fans that can pump lots of air without the high pitch.

...still want an SP-10 of my own though, just need the right price and to finalize details with a DC outside of my province

waiting on the standalone unit - the rbox is pricy due to having so few chips compared to other parts.

hashratio seems to be making an antminer-knockoff with the BE200 chips

Ken's Priorities:
1:
2: vauge forum posting
3: MSD discussion
4: improving DC hashrate to add the additional 100TH that should have been online already.
5: removing non-existent products from front page of website
6: shareholders

so ken; please tell everybody what is 'more important' than hardware deployment and the website

remember the fact ken had 737GH of avalon equipment since late 2013, barely visible to shareholders and (for all intentions) seemingly kept private by ken?

I find it hard not to beleive that there IS more than 85TH running at the datacenter now that the AC if fixed, but that a portion of it is not directed at the shared eligius address.

any price drop or another GB coming up?  I would love to see the SP-10 priced to $3000 or less with instant shipping

as mentioned there are better cheaper soilutions than bitfury.

bitfury hardware is a beautifully simple design - If punin/MBP were selling to the public still they could easily beat the S1 price due to the simplicity of the cards (16 chips, a regulator, and inductor),  many cards controlled by a few basic capacitors and an RPi.

$3/GH is too much when the S2 is an equally reliable unit with equal power efficiency.

hot cables can be an issue. if its too hot to hold thats a problem. if its hot enough that the plastic/rubber coating on the wire feels like it is getting soft then you might be creating a risk that it could melt and cause fires/shorts

an easy solution to warm cables is to put a fan nearby so a little bit of airflow goes across them and carries away the excess heat. just a little bit of airflow can drop the wire temperatures by 15 degrees or more

tl;dr

Lots more people were looking up information about bitcoin when it was peaking in price. That chart starts in January when the price was still over $800. As the price relaxed there was less interest (other than when significant, fast drops in price occurred)

The chart would be FAR more meaningful if it extended back to about april of last year, when the price was stable at $90-120, so you could see the change in interest from then through the price jump and to now. I am sure its a few times higher now than a year ago

Yes it is worth it (for now).  Try 387.5 or 393MHz to get the best speeds. 400MHz is a biut extreme on the hardware and will make a lot of noise and slightly higher error rates.

with your power costs, you can run at top speed for another month or two before you would consider undervolting at all

FTFY

I just want to poke my head in here and remind people that paying 100% upfront for a hosting service like this exposes you to substancial loss if the OP decides to dissappear after a few days/weeks of dividends once they have collected enough funds to totally pay for the miners and run off to go use them for him/herself from there forwards.

I am not accusing the OP of this or any other wrongs, only want to let potential investors know that this sort of agreement has been prone to scams before (https://bitcointalk.org/index.php?topic=522761.0) - The OP sold shares to a demonstrated collection of 12 real antminers. paid a few dividends out then deleted posts and dissappeared with ~7.5BTC worth of free gear


A better hosting model is to pay monthly installments

just to add a few comments:

1) 208V is definitely better. more power per plug, PSU wires carry half the amperage and dont warm up (mostly if 18awg), and the mains wiring also doesnt need to be as thick as for 110V
2) unless the PDU is just handy to you, be careful. those specialised plugs and multi-phase wiring can end up costing a lot more than cheaper alternatives. One of those 3-phase specialty outlets may cost well over $100, and if you use a 3-pole circuit breaker you are looking also well over $100. (a single pole is around $20)

2a)  NEMA L6-30. receptacles are $50 new or easily found used for <$20. They carry 30A (or almost 5kW after the 80% rule), and fit generic receptacle boxes.
2b) Use typical household 20A 110V outlets (NEMA 5-20) to carry 208V, thus allowing you to use extremely common parts and cords.  *this is very much against code, and a ghetto-solution*