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Author Topic: USB Miners for Scrypt coins  (Read 1068 times)
yoso (OP)
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January 16, 2014, 07:57:09 AM
 #1

Hello, I was curious if there were any usb-based miners that work with Scrypt coins? I have a laptop with an intel core i3 and i'm not exactly setting the world on fire. I tried looking through the forum, but I did not see anything that answered my question.
mightyphreak
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January 16, 2014, 08:13:44 AM
 #2

I've been mining a few different Scrypt-based coins for the last few weeks and I have yet to hear of any Scrypt ASIC's that are currently in use. Doing a search I found a few examples of companies taking pre orders for future hardware but I haven't seen any specific dates for when that would be available. So far I've seen a few alt coins that are scrypt based but also use cgminer to gpu mine but that probably won't help you with your laptop. I'm also very interested in a such a device so hopefully I just haven't looked hard enough and there will be something out there now or in the near future.
segafanatik
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January 16, 2014, 08:50:44 AM
 #3

Can only mine SHA 256 coins, and not scrypt.


Look at coinchoose, so many coins with SHA256. I'm mining with my block erupter Bytecoin to test.

one coin for eat, please
segafanatik
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January 16, 2014, 09:14:02 AM
 #4

or a fpga miner.

one coin for eat, please
guysoft
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January 16, 2014, 11:54:55 AM
 #5

You can't build an ASIC (application specific integrated circuit) for scrypt.
The scrypt algorithm was built to be memory intensive. That means you need hardware that has a lot of fast memory.

What's special about that is that there is no "application specific" implementation for memory. That is, dedicated hardware for memory is, well, memory. So you can't build an ASIC for it. You could build a striped down equivalent of a graphic card for scrypt. But it won't be a massive jump like like it was with bitcoin's sha256, it might just be a little more cheaper and perhaps power consumption optimized. Not a game-changer.
disparity
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January 16, 2014, 12:29:20 PM
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A company called Alpha Technology (Think thats right) is supposed to be close to making Scrypt asics but when they will be ready etc... no idea.

Alpha Technologies might be a scam http://www.reddit.com/r/litecoinmining/comments/1uveun/alpha_technologys_scam_team_akram_akram_akram_and/?sort=old

I wouldn't do any pre-order there
boumalo
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January 16, 2014, 01:27:28 PM
 #7

You can't scrypt mine with asic's right now, you need a special set-up with graphic cards

Flashman
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January 16, 2014, 02:23:27 PM
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What's special about that is that there is no "application specific" implementation for memory. That is, dedicated hardware for memory is, well, memory. So you can't build an ASIC for it. You could build a striped down equivalent of a graphic card for scrypt. But it won't be a massive jump like like it was with bitcoin's sha256, it might just be a little more cheaper and perhaps power consumption optimized. Not a game-changer.

That's a load of shit.

Memory is an ASIC, it's application specific purpose is to store data. It's just generically useful so it has it's own name, "RAM" etc rather than calling it a storage ASIC all the time. Generally however, it's more efficient to use a specialised process for memory and "on die" memory is typically more costly to implement than off die memory. On die memory though, can be an order of magnitude faster. There is nothing magic about it though, it's just another arrangement of circuit elements. It is particularly inefficient to implement in FPGA, where you have multiple logic elements required to pretend to be a single logic element, and two logic elements are required to emulate a memory cell, whereas in dedicated RAM or RAM implemented on an ASIC you get a couple of circuit elements per bit, on FPGA you end up using hundreds.

However, yes, ASIC for scrypt will likely not be such a massive jump, it will be more like SHA256 on FPGA compared to on GPU, as opposed to GPU to ASIC.



Alpha Technology is in the forum's hive mind  "Everything is a scam until we see hardware" bracket at the moment, which even genuine SHA ASIC manufacturers get moved into  as they announce new products, until they demo them... we have a bit of a cry wolf problem with that... but also we don't have reliable methods of certifying "genuineness" and the term "scam" is abused frequently.

So, what is Alpha Tech? It's a large risk, they are unproven. They may or may not know what they are doing. They may or may not fold under the pressure of forum criticism, or even premature legal filings by nervous pre-orderers. Yah, that can happen, people are more than willing to shoot themselves in the foot to "Prove a point"  Roll Eyes

I read through all the "Look at me I'm an interweb detective" nonsense on reddit, litecointalk and here, and it actually made my mind up that Alpha were probably serious, therefore I have used a reversible method of payment to place a deposit with them. Why so? Because I tell you, one of my biggest fears waiting for my BFL stuff was that hotheaded idiots with large caliber lawyers would get them shut down before they delivered mine. In that sitch my BTC would be gone, so considering all the lunacy coalescing around Alpha Tech at the moment, I thought I'd take precautions.


Anyway, Alpha may fail, I may lose my money, but if not I'll get an ASIC scrypt machine and enable that forum darling project that claims it won't launch hardware until it gets competition, whereupon you can order from them, you're welcome.

TL;DR See Spot run. Run Spot run. .... .... Freelance interweb comedian, for teh lulz >>> 1MqAAR4XkJWfDt367hVTv5SstPZ54Fwse6

Bitcoin Custodian: Keeping BTC away from weak heads since Feb '13, adopter of homeless bitcoins.
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