Chilling my Jalapenos [ Chill + Flash: 7.2 >> 8.15GH]

[peterepeat]

So I received my second Jalapeno today and started it hashing immediately at 7.45 GH/s

Went home, put it in the freezer for 15 minutes while I set up power supply, made room etc.

(took it out of the freezer first)
Powered it up and it is now hashing on average at 7.75GH/s

so my results so far on the two I have received:

Jalapeno 1: Original average: 7.2 GH/s, After chill and power cycle, 7.63 GH/s Improvement = 6%
Jalapeno 2: Original average: 7.45 GH/s, After chill and power cycle, 7.75 GH/s Improvement = 4 %

anyhow, I'm enjoying the extra 730MH/s

[joecascio]

How often do you solve a block? Just curious. It seems like statistically, with so many people mining and a block being solved only every 10 minutes that a lot of people would never get a block reward.

[btcusr]

Give it a liquid  nitrogen dip, it will start hashing at THashes.

[vm1990]

nice trick can wait to get my jalapenos and see if i can get a bigger improvement  

[peterepeat]

How often do you solve a block? Just curious. It seems like statistically, with so many people mining and a block being solved only every 10 minutes that a lot of people would never get a block reward.

At my Jalapeno hashrate, generation time for a solo block is 62 days and 20 hours according to http://www.bitcoinx.com/profit/

is that what you were referring to?

[peterepeat]

Give it a liquid  nitrogen dip, it will start hashing at THashes.

LOL - more likely will just shatter the ASIC with the -200° delta T

[btcusr]

Solo mining, no change in total network hash rate, 20 hours a day for 62 days, then you have what percentage of finding a block??

[joecascio]

How often do you solve a block? Just curious. It seems like statistically, with so many people mining and a block being solved only every 10 minutes that a lot of people would never get a block reward.

At my Jalapeno hashrate, generation time for a solo block is 62 days and 20 hours according to http://www.bitcoinx.com/profit/

is that what you were referring to?

Not really. I'm just wondering if you have ever actually received a block reward and how long it took to get it.

[peterepeat]

How often do you solve a block? Just curious. It seems like statistically, with so many people mining and a block being solved only every 10 minutes that a lot of people would never get a block reward.

At my Jalapeno hashrate, generation time for a solo block is 62 days and 20 hours according to http://www.bitcoinx.com/profit/

is that what you were referring to?

Not really. I'm just wondering if you have ever actually received a block reward and how long it took to get it.

No problem - I have not received a block reward yet but Im on a pool.
I am choosing to mine on a pool for now, so if I do find one, I wont see any individual benefit.
I did try going solo last year for a few weeks with 3 GPUs but found it too frustrating, and to be honest I couldnt actually determine if it was working so went back to pools.

but anyhow:

TL;DR summary: chill the Jalapeno for 15 mins prior to powering it up and see if you get a 5% bonus

(DISCLAIMER Just in case:be aware of condensation if your location is hot/humid - I wouldnt recommend to power it up if you see water beading )

[vm1990]

alternative method
sell house
buy new house in Antarctica
run rigs at even cooler temps -40

only downside you will have to buy a very long fibre optic cable XD

[nightyj]

This is not a clever experiment to moove object from cooler to hotter place, it can create condensation, which can lead to shorts and damaged unit.

[rammy2k2]

This is not a clever experiment to moove object from cooler to hotter place, it can create condensation, which can lead to shorts and damaged unit.

i agree, you might regret the ~5% extra later ...

[Cluster2k]

Well, my Jalapenos have shipped (honestly thought I'd never see the day) and was wondering how many people are solo mining with their units.  Currently an upgraded Jalapeno will take about half a year for 25 bitcoins, at the current level of difficulty.  Realistically it could be years before a single block is hit, and quite possibly never.  Risky proposition when one considers the unit may never pay for itself with solo mining.

[Rampion]

Well, my Jalapenos have shipped (honestly thought I'd never see the day) and was wondering how many people are solo mining with their units.  Currently an upgraded Jalapeno will take about half a year for 25 bitcoins, at the current level of difficulty.  Realistically it could be years before a single block is hit, and quite possibly never.  Risky proposition when one considers the unit may never pay for itself with solo mining.

Solo mining with 5-7GH/s? Seriously guys, what are you smoking?

[ssateneth]

Well, my Jalapenos have shipped (honestly thought I'd never see the day) and was wondering how many people are solo mining with their units.  Currently an upgraded Jalapeno will take about half a year for 25 bitcoins, at the current level of difficulty.  Realistically it could be years before a single block is hit, and quite possibly never.  Risky proposition when one considers the unit may never pay for itself with solo mining.

Solo mining with 5-7GH/s? Seriously guys, what are you smoking?

[GigaWave]

Is this some kind of phenomenon, or was  this just something that was shot lived till the device warmed up? I've never heard of the former.

[iikun]

This is not a clever experiment to moove object from cooler to hotter place, it can create condensation, which can lead to shorts and damaged unit.

i agree, you might regret the ~5% extra later ...

+1

Extra Mh/s is great but seeing as you've waited a year for the thing it would be a shame to fry it

[PaperClip]

Solo mining, no change in total network hash rate, 20 hours a day for 62 days, then you have what percentage of finding a block??

According to this: https://en.bitcoin.it/wiki/Difficulty
time required to find a block = difficulty * 2^48 / 65535 / hashrate

difficulty = 19339258.272387
hashrate = 7.75 GH/s = 7 750 000 000 hash/s
time required to find a block = 19 339 258.272 387 * 2^48 / 65 535 / 7 750 000 000 = 10 717 774 s

20 hours a day for 62 days equals to 4 464 000 seconds
result is 4 464 000 / 10 717 774 = 41.65%

[edit]
Actually, result percentage should be bigger. 10717774s is maximal time to check all possible hashes. In reality miner does not check them all, it stops as soon as correct hash was found.
Its like if somebody has number between 1 and 9 in his mind, and you will guess it by trying all numbers 1,2,3,.. sequently. You do not need to make 9 guesses every time. It will be from 1 to 9; 5 guesses in average.
Soo, in this case result percentage should be 2 times bigger - 83.3%.
Am I correct?

[Hippie Tech]

There are only 2 possible outcomes. You will.. or you will not find a block. Its always 50/50, Ying Yang, .. ect.

Mr. Nakamoto wrote it into the code.

[PeZ]

Aren't you worried about a layer of frozen water condensing on the electronics?