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Showing 20 of 528 results by BBQKorv
New GPUs in my everyday desktop.
Yes, thats dual 7990s with a 850W 80+ Platinum PSU, pulls 950W from the wall with 1050/684 clocks. Originally had the PSU planned for 3x 7970s but it seems to do fine with these monsters too.
http://www.hardwaresecrets.com/article/Kingwin-Lazer-Platinum-850-W-Power-Supply-Review/1527/10
one of my 7 rig's , 1500kh :
home made risers with "activate 1x" hotplug bridge, and additional power molex
[img ]http://s23.postimage.org/e0as0cf6v/image.jpg[/img]
box with cutout hole and dual hp 800w server PSU modules joined and atx-converted , home made cables
[img ]http://s23.postimage.org/cmj551fxj/image.jpg[/img]
dual old p4 coolers to mach gpu0 and gpu1 temps
[img ]http://s23.postimage.org/namw3vpwn/image.jpg[/img]
home made 2x 2.5mm^2 cables
[img ]http://s23.postimage.org/pgh6ydtd3/image.jpg[/img]
psu's
[img ]http://s23.postimage.org/bo2s2r2lj/image.jpg[/img]
risers mounted
[img ]http://s23.postimage.org/w9m58e9k7/image.jpg[/img]
home made risers with "activate 1x" hotplug bridge, and additional power molex
[img ]http://s23.postimage.org/e0as0cf6v/image.jpg[/img]
box with cutout hole and dual hp 800w server PSU modules joined and atx-converted , home made cables
[img ]http://s23.postimage.org/cmj551fxj/image.jpg[/img]
dual old p4 coolers to mach gpu0 and gpu1 temps
[img ]http://s23.postimage.org/namw3vpwn/image.jpg[/img]
home made 2x 2.5mm^2 cables
[img ]http://s23.postimage.org/pgh6ydtd3/image.jpg[/img]
psu's
[img ]http://s23.postimage.org/bo2s2r2lj/image.jpg[/img]
risers mounted
[img ]http://s23.postimage.org/w9m58e9k7/image.jpg[/img]
Holy Shit! It's posts like this that make me sad that GPU mining will eventually disappear.
I also like very much of these homemade rigs, specially the ones that do have a proper construction and not just plenty of zipties and hotmelt-glue.
Luckily GPUs will stay on mining on the scrypt side after ASICs dominate sha256 side, it will be interesting to see if BTC/TRC/PPC value increases even more and thus allows GPUs to stay longer on that side too.
This is the array of ~140 Cairnsmore CM1 boards I built last summer. The last time I had all of them hashing on a single pool they were pumping out around 115 GH/s. Power demand is 6.5 kW, not including cooling. I've moved them to a better location for summer, which is why I'm comfortable posting now
When I saw Skyfall I laughed at the lame crypto gear the movie's villian had.
I'd like to give a little shout out of thanks to all the folks at BFL and especially Inaba! Without you this would never have been as profitable as it is today. How you might ask? Well:
When I saw Skyfall I laughed at the lame crypto gear the movie's villian had.
I'd like to give a little shout out of thanks to all the folks at BFL and especially Inaba! Without you this would never have been as profitable as it is today. How you might ask? Well:
- They took millions in preorder money that otherwise would have been spent on hashpower that exists and competes with me off the market for nearly a year now, and continue to do so today
- They scared lots of other folks away from making the investment I did, since it was obviously a money loser when they would ship in October
- They are so unbelievable incompetent, they still haven't shipped! Meanwhile these babys are chunking out $600 / day
- When they finally do ship, their incompetence means they won't ship much and it will be many, many months before difficulty catches up with my electric bill
Thats what I like to see, this goes instantly to my "hardcore hardware" category. If you want to share, how long did it take to 100% ROI that gear?
Actually, I'd like some comments from you...
- Would you like a USB miner or are you happy with standalone RasPi controlled unit?
- Do you feel modular design is important, or would you prefer a nice tidy box?
- What about form factor: free or rack?
- What dB level are you comfortable with?
- Internal custom PSU or ATX?
- Would you like a USB miner or are you happy with standalone RasPi controlled unit?
- Do you feel modular design is important, or would you prefer a nice tidy box?
- What about form factor: free or rack?
- What dB level are you comfortable with?
- Internal custom PSU or ATX?
1. RasPi, cheap and out very soon
2. modular, we have plenty enough "hard" boxes.
3. free, you can offer some box if people want chassis
4. whatever, let me downclock to save some power and dB's if needed to mine in a bedroom(??)
5. custom 3kW @ 400eur with a high availability sounds good, make it compatible with user provided ATX (PCI-e power) if possible
For the Yay:
Pics were here...
Pics were here...
one, I hope not too stupid question: can I just rip these little brown thingamajigs off the august h-boards, or is it counterproductive? If yes, how do I do it best?
August caps should be ok. If you want to remove them I recommend a hot-air station with temp set to max 340°C. They come off pretty easily with tweezers. We were doing 16 cards per hour.
I did that to two August cards, it's easy with two soldering irons if you don't happen to have hot-tweezers or hot-air station. 1-2GHs is what I think I gained.
Full August kit, paid around 310 BTCs, up to now has earned around 114 BTCs, it will NEVER break-even.
spiccioli
Huh, calculating it in fiat you will get your money back, and then some. Unfortunately BTC has tripled in value since then (60eur to 180eur) so you would have been better off by just holding coins. I don't see how that is anything else than your own (and mine) bad decision to go with mining instead of just holding coins and daytrading.
That ASIC earned itself in ~2-3 months, try to find some similar return of investment in other business segments.
H boards are out of stock, wow.
Nice! less people will loose money on them
spiccioli
with starter kits paid over 1000 $, I guess that a lot of people already did loose and is just trying to recoup something.
I already had positive ROI on my August starter kit. No idea why you guys would have a problem.
wow add VAT and see how much you get out..... overpriced for me, I was expecting cheaper hardware after the successful run they had and the positive experience.
A KnC Jupiter is definitely cheaper now at 4995 USD instead of 5700-5750 USD for a full rig made up of 16 h-boards + 1 m-board + 1 raspPi.
And h-boards are "certified" at 25GH/s, so you could end up with a 400-450 GH/s bitfury unit instead of a 500-550 GH Jupiter if you're unlucky and get underperforming cards.
spiccioli
ps. the whole bitfury's idea was a lot of "small" chips against a few big ones... but if small ones are priced like this, the whole idea does not work so well.
Do you get that Jupiter shipping tomorrow?
Unfortunately these +1W/GH chips are next to worthless very soon unless you live in China or some other place with around 0.02$/kWh electricity. And in addition to that there is a "slight" trust issue.. I'll pass.
My idea is dedicate some hash power to solo mining and some to pool mining. When solo mining becomes luckier than pool mining i switch to all pool mining and maximize my return.
Luck does not have memory. When solo mining becomes luckier, it doesnt mean your more likely to be unlucky in future
Luck doesn't have memory but it sure follows statistical average. Lucky rounds will be followed by unlucky ones to bring the earnings back to normal, average level. We are playing with average numbers here, observing only a day or two of data is not enough to make any conclusions.
Yep, buy only what they can ship immediately. With the current and coming difficulty levels you can't afford a delay with unfinished pre-order product.
Profitability is going down even more, just because more people are dividing that 25BTC per block with all their shiny new ASICs.
Profitability is going down even more, just because more people are dividing that 25BTC per block with all their shiny new ASICs.
Re: Three big cheers to Nico and Co. (bitfurystrikesback). Send your tips!
So now we are paying people extra for not screwing us over?
It's little bit like what you do in restaurants, if you like the service and there is no spit in the soup you might leave little extra money on the table.
Really? Is no one questioning why it's suddenly ok to yank half of the components off of the H boards? Do we need to worry that our old H boards are going to spontaneously combust and burn our houses down?
You can sell them to me as junk, I promise to take good care of them if you worry too much
Seriously, this cap problem has not been reported on any of the August batch boards, you can see failing caps in just a day as they turn totally black.