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(Unknown Title)
by
jml
on 25/01/2020, 02:23:00 UTC
Quote
Now I'm virtually all FPGAs and am desperate to get more hashrate (I'm a committed, but very small, miner), but FPGAs are expensive and only compete with GPUs on power consumption - in my experience (best hash per £ GPUs, so 5770, 5830, 5850, 6950 all with special tweaks; and a combination of Ztex's 1.15d and 1.15x FPGAs, so all Spartan-6 units).

I lost out on bASIC Tom even though I considered my due diligence pretty good; he had a record of delivering and didn't send off my risk analyst radar like BFL did. And whilst Avalon *have* delivered ASICs, I can't take days off work glued to my computer, propped up on amphetamines and repeatedly hitting ⌘R on the slim chance that I'll get onto the order webpage - and even then needing the luck to be able to actually *pay* and get a guaranteed build slot. I fear now is far too late anyway and Avalon have already sold their entire short production run, so it's 'start the process again'. I wouldn't be surprised if BFL go the same way, since there are too many rumours of chips not making the cut, and like Avalon they would only have a very limited number of discrete chips to package and test. With all the pre-orders, I'm sure I've missed the boat

Sure, I have the option to spend another £5k on 25 of Stefan's wonderful little boards and build another cool looking rig. It will be ultra-efficient and use little power. But, like the current one, it only has around 5 GH/sec. The ASIC devices are looking like around 50 GH/sec for something around £1k to (probably) £4k. I had a paid-for ASIC order in along with the other early adopters, but unluckily my order was with Tom and not Avalon. So if the ASIC boat has gone, with terahashes of power in various states of assembly at BFL and Avalon (et al) already earmarked for customers, buying as many FPGAs as possible *now* doesn't sound like it'll ever pay off  And that's even if I could get the FPGAs in the first place. Perhaps I should sell my existing FPGA rig for Bitcoins and simply invest (buy and hold only)...

I have no stake in Asics .... i decided not to because even Avalon could have been a scam (default op). I am a small committed miner myself.On my desk i have a beautiful fpga rig (Stefan's boards, 18 Spartans) chugging away 3.9Gh/s. I feel to upgrade but that would be an investment that i can not do at the moment....

Luckily though the current exchange value my investment in this rig will pay of itself in a few month (initially calculated repayment was 4 years!).



 

It is a shame though that Stefan won't be stocking 1.15x for small orders. Now you would need a large order on that to get FPGA boards (I can confirm this). Checking again on the 1.15y, the product page has gone, so I am suspecting that it is either out of stock OR you need to place a large order (unless someone can confirm otherwise).

I only bought 1 1.15x to get into the grind of mining and I can see that it does bring in *some* money in despite the rise of BTC. So I am waiting on CM1 as I have very little faith that ASIC's will make it to the mainstream bitcoin mining market at least for this year.
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Topic
Board Service Discussion
Re: I lost 206000 dollars in MTGOX
by
jml
on 01/03/2014, 22:19:20 UTC
I have 206000 dollars in my MTGOX account before Feb.7. These money are sleeping in MTGOX for years. I trust MTGOX & Bitcoin foundation very much. I thought Satoshi is behind MTGOX. (I think I am a idiot!!)

After a serials of good news and bad news and the market manipulation in these dark days, my balance is slim to 64000 dollars. I finally decide to retrieve the money via Bitcoin builder. I bought 320 btc at 200 in MTGOX. MTGOX suddenly shut down when I am withdrawing the bitcoin!

I think all the money are gone. All I want is putting Mark Karpeles to the jail. I do not trust Bitcoin again. Cry Cry Cry

A wise man once told me, never put all your eggs into one basket. Now I am offering you the same advice. Cheesy

Just be thankful Bitcoin isn't regulated otherwise you would have lost a lot more than $206,000.



Very true, never put all your investment in one basket, hedge them in lower risk strategies.
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Topic
Board Service Discussion
Re: I lost 206000 dollars in MTGOX
by
jml
on 01/03/2014, 22:16:37 UTC
Guide to Affected People in order to take a common position at
http://affectedmtgox.blogspot.com.es/p/blog-page_9078.html …

Caveat emptor
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Topic
Board Service Discussion
Re: I lost 206000 dollars in MTGOX
by
jml
on 01/03/2014, 22:14:12 UTC
I didn't fully trust Mtgox fully at first which is why I opted to hedge 50% of my bitcoins instead of going 100% for HFT in gox. I did lose out a fair amount which was around 9BTC which was done when the prices where going low but now I am amongst with many in the same boat that might never see their bitcoins or fiat again.

I posted an issue regarding mtgox's collapse and how other exchanges work (proving full reserve instead of fractional reserve) as we might see in the future that other exchanges will collapse if they can't prove the funds that they have and have funds missing. So for now, I reckon cold storage and face to face trading within my community will be the safest option for now until safer exchanges ring fence users wallets.
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Board Service Discussion
Re: UPDATE: MtGox OFFLINE (good news)
by
jml
on 28/02/2014, 00:55:42 UTC
I only wonder which exchange will be next to fall and I will surely feel sorry for those who lose out.
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Topic
Board Service Discussion
Re: irc Chat with KARPELES(MtGox) from today 25th Feb
by
jml
on 27/02/2014, 05:29:09 UTC
The theory of them having lost so many coins on some not registered scam artists, when they were asking an arm and a leg for verification, only a few fools would buy.

Karpeles would have to BEG some of the trusted core devs like gmaxwell and others like antonopoulos to audit all the moves from the supposed cold store wallet to the supposed scam artists that supposedly stole it.

He of course does not do that, but instead represents us with an image of his cat.

He will also have to show us where he channeled all the USD and be audited by trusted members of the community. Again, he should beg for this, but instead he will keep sending us more pics of his cat and say sowwy.


Furthermore, as i explained several times, this prick has created probably WAY more BTC out of thin air than was ever stolen from this exchange supposedly.
This is the ONLY explanation why the price on MtGox went down to 91.5 USD when other exchanges were at 500-650. Only a few insane fools would have sold at this price, certainly not enough to push the price so far down.

He even kept asking for more deposits to fraud people out of there money during that time, as well as getting more real BTC into his hands via the builder tool that allowed people to interchange fake goxBTC for real BTC.

He also created insane amounts of fake USD/IOUs simply by entering a few numbers in the MtGox databse is my believe when looking at the sharp swings.


All this has to be investigated, and see WHERE TO he channeled all the REAL BTC and USD and WHEN EXACTLY he did that and WHO got hold of it. We might be able to figure out SOMETHING even if he used a mixer service to try and conceal the tracks.


Furthermore, if they "just" lost the passwords to the cold storage, and they can without doubt prove that it is THEIR cold storage, i am pretty sure the core devs in agreement with the community could release an updated client which gives them back the control over those coins, or even if i am wrong, this would have been a POSSIBLE way to save them he should be seeking to make it happen.
Of course this prick does not do any of the above, so i am convinced that this theory some put forward is out of the way as well. He does not even attempt to do anything in this regard.


His only thoughts now are how he will be able to get away with some new identity and possibly a surgical face-lift which will change his appearance so no one will recognize him after, along with some diet to lose weight, all sponsored by the powers that want to harm BTC.




A plausible conspiracy theory that is going around in twitter is that Mt.Gox was bought out by some Government agency and make it look like insolvent. This would bring about an outcry for regulation and tighter control. Plausible, but my guess is that he lost the BTC and has no way of getting it back.
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Topic
Board Service Discussion
Re: irc Chat with KARPELES(MtGox) from today 25th Feb
by
jml
on 27/02/2014, 02:35:15 UTC
Don't worry, Mark will put the keys back together... and it's gone! Poof.

http://goo.gl/gUaOl3
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Topic
Board Service Discussion
Re: irc Chat with KARPELES(MtGox) from today 25th Feb
by
jml
on 26/02/2014, 06:06:29 UTC
Post
Topic
Board Service Discussion
Re: irc Chat with KARPELES(MtGox) from today 25th Feb
by
jml
on 26/02/2014, 05:54:47 UTC
After reading the supposed interview, it is still somewhat elusive replies from the questions asked and does not give concrete answers. From all excuses given, Karpeles not only has destroyed my confidence in Mt.Gox, but has also destroyed my confidence  and raised a question if any website hosting private keys should be trusted by customers who put in their bitcoins or any other alt coin. I was trading with Mt.Gox because I have been having problems with banks - namely Barclays - as I had my account frozen when trading with localbitcoins.com from August 2013. Not a very good experience if you pay bills with one account I might add.

Although I am grieving at a loss of several bitcoins as a small investment and tried to help my partner to get into bitcoins by making a small investment into MtGox. I feel we have lost out on those bitcoins that ended up in MtGox for trading purposes as banking in UK hates bitcoin trading like the plague. However, I do trust in how the bitcoin protocol works and read the transaction malleability issue. Despite criticisms that MtGox programming skill were amateurish, I will never again put my trust and coins for trading at an exchange or keep a large quantity of bitcoins in hot wallets, no matter what the Bitcoin Foundation say, Roger Ver, or other notable industry expert in Bitcoin say in this regard. It is how the saying goes as I am myself a Computer Science researcher, "no system is safe".
In the end, bitcoin is an unregulated technology where the individual is at risk of losing bitcoins and transactions are one way only with the impossibility of recovery if theft occurs.
With the advent of the Gox.com crisis re-branding document, in my view, no matter if they change an image brand, domain name or trading platform, Gox.com is still the same underneath; unregulated and risky if insolvency issues arise. I might be wrong if Karpeles manages to pull out some magic out of his hat and I recover most of my bitcoins I put into my account, but I feel that this issue has been dragging a long way with white lies and withdrawal issues which is reminiscent of fraud tactics in delaying the victim that they will soon get their money.

IMO we need less risky means (local buyers and sellers) of bitcoin exchanges that are located overseas or at least, attempt to have some regulation on exchanges to insure the holder from insolvency issues.

Some ideas to buy/sell without electronic exchanges within the UK.

- Installation of more bitcoin ATM's.
- Locals within a community in hosting bitcoin trading within events such as pubs, café's or market stalls if allowed.

If you have ideas to kickstart something in the UK, give me a shout.
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Topic
Board Service Discussion
Re: Mt Gox is dead.
by
jml
on 25/02/2014, 20:31:13 UTC
I logged in to MtGox and this is what I got.

https://dl.dropboxusercontent.com/u/22873106/mtgox%20dead.png
Post
Topic
Board Hardware
Re: [Guide] Dogie's Comprehensive ASICMiner Cube Setup
by
jml
on 22/12/2013, 02:50:29 UTC
Again, is there anyone that has successfully set up their cubes for solo mining? I would really like to learn how to do this. I posted a thread by itself but so far no answer has been useful.

if youve set up the wallet as a server then all you have to do is point the miner to that computer you dont need stratum proxys just point the mining gear to that wallet and your solo mining

I've tried this. When I set my "pool addresses" to my IP (I'm on a router, so 192.168.x.x) and I have the wallet running as a server, it never connects and the cubes themself  never show a hashrate. I'm also assuming that neither CGMiner or BFG Miner could be used in this situation.

Anyone?

Solo mining is mainly done now on other crypto-currencies where the difficulty level is much lower and can be done on a normal PC. In Bitcoin, the difficulty has gone so high since March 2013 that it would take you more than 5 years and 131 days from today to solve a block depending on luck! Since ASIC mining equipment adoption is growing, pool-mining is the way forward.
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Topic
Board CPU/GPU Bitcoin mining hardware
Re: Any way to remotely power down and restart a BE Cube that stopped responding?
by
jml
on 22/12/2013, 00:58:21 UTC
Does anyone know if there is a way (pretty sure there isn't but I am desperate!) to repower, not just restart, a Block Erupter Cube remotely?

I need to restart a cube with x's in the modules but I am not there Sad


You will need to purchase an IP network enabled powerstrip.

Such an example:

http://www.amazon.com/Managed-Designed-Manufactured-Synaccess-Networks/dp/B0039OZKPE
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Topic
Board Hardware
Re: [Guide] Dogie's Comprehensive ASICMiner Cube Setup
by
jml
on 21/12/2013, 22:59:10 UTC
I've only had Cubes running overclocked for two or three weeks, but no issues past a single X'd card - just haven't had time to fix it. About half my cards have actually been jacked to a higher-than-factory overclock just because.

I have a Blade that's been in continual operation at 20% faster than these Cubes' overclock frequency, for two months without a single issue. The way I figure, as long as you keep them cool enough, they should last their expected (profitable) lifetime.

Also, effin' YES on the DDWRT. My last two wireless routers were both flashed to said firmware, and I have another running around which needs to be given "the treatment".
Thanks for your input. I have been "cycling" them for lack of a better word. I run them 8 hours on low and 8 hours on high. Perhaps its overkill but I sleep better by doing this  Grin

"The Treatment", I like how you put that. Yes, any flashable router that enters the house will not keep its OEM virginity for long  Grin



I am using BFGminer on RPi as proxy server.  Running Corsair 750M power supply.  Pool with Bitminter.

Can't figure out why the long poll shows inactive, when BFGminer setting is long poll = active.

Any ideas?

I have run into the same situation regarding the "Long Poll inactive" and have noticed that my stale share percentage is out of the desirable range. I was researching this and saw that Dogie made this comment below. Is there a short answer or any insight one of you could give regarding making my hardware & my stratum proxy "play nice". I am running the latest version of BFGMiner, my networking is cleaned up, exceptions made in any firewalls etc etc. Cant figure it out. I have tried 3-4 different pools to see if that would clear the problem up and still the same.


Your blade and stratum proxy aren't playing nice, hence 'long poll inactive'.


I have the same problem with regards to overclocking my cube. I have noticed that if I set the clock setting to high without saving the settings, it will overclock for a couple or several hours (oscillates between 34GH/s to 40GH/s) until it restarts on its own and start on "low" clock. However, if I save the settings on clock "high", I will notice several chips marked "x". If I restart on low and save the setting on low clock, I see no "x" marked.

I am using a 850W OCZ Gold PSU to power up other devices too but I have isolated the cube on its own and I still have the problem (heating issue? Firmware issue?). I also use BFGminer 3.8 on a Rpi running on proxy with other old FPGA (CM1's and ZTEX) with Blue furies and BE USB miners running on Raspbian "wheezy" hard float ABS.

I also do get "longpoll inactive" too.
Post
Topic
Board Group buys
Re: [UK GROUP BUY] ASICminer Cube group buy #9
by
jml
on 14/12/2013, 18:55:44 UTC
I received the cube the other day and I realise that there are 8 chips marked with an "X". I assume these are faulty? Overclocking is not used. Anyone with the same problem?

Hey mate,

An "X" chip does indicate a faulty chip, does restarting the cube help at all? can you send me a screen shot of the web interface.

I found that cycling the power from On to Off does eliminate the half row of X's marked as bad. What I realised is that the same set of chips was not affected and other chips would be affected. As I decommissioned my FPGA's that use more power just to check to see if it isn't the ASIC cube, it seems to be working OK.

I think it is the case that the PSU is not delivering enough amperage to cover all devices but I will confirm as I monitor it overnight.
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Topic
Board Group buys
Re: [UK GROUP BUY] ASICminer Cube group buy #9
by
jml
on 14/12/2013, 18:11:48 UTC
I received the cube the other day and I realise that there are 8 chips marked with an "X". I assume these are faulty? Overclocking is not used. Anyone with the same problem?

EDIT:

Solved: It is a power problem with my existing FPGA's  Sad
Post
Topic
Board Group buys
Re: [UK GROUP BUY] ASICminer Cube group buy #9
by
jml
on 11/12/2013, 00:13:57 UTC
So hopefully by Friday they should be delivered then?
Post
Topic
Board Group buys
Re: [UK GROUP BUY] ASICminer Cube group buy #9
by
jml
on 06/12/2013, 01:25:05 UTC
Payment sent for 1 cube

971030e8397211fea8f8107eb5880c4ee4dbc5006f2721c9ad9c2275a0960822

Thanks!
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Topic
Board Group buys
Re: [UK GROUP BUY] ASICminer Cube group buy #9 (accepting orders)
by
jml
on 05/12/2013, 20:10:00 UTC
Reserve me one cube please.

I will gather the bitcoins needed to make payment tonight or tomorrow.
Post
Topic
Board Group buys
Re: UK ASICminer Blade and Cube group buy #9
by
jml
on 28/11/2013, 15:42:42 UTC
Register my interest depending on the cube price. Is this from ASICMiner?
Post
Topic
Board Mining support
Re: Blue Fury Support Thread.
by
jml
on 13/11/2013, 04:05:21 UTC
Code:
cgminer version 3.8.1 - Started: [2013-11-12 21:43:52]
----------------------------------------------------------------------------
 (5s):16.88G (avg):16.77Gh/s | A:84239  R:352  HW:3356  WU:233.8/m
 ST: 2  SS: 0  NB: 45  LW: 108588  GF: 0  RF: 0
 Connected to pool diff 16 with stratum as user 1
 Block: 446cc771...  Diff:511M  Started: [03:46:42]  Best share: 213K
----------------------------------------------------------------------------
 [P]ool management [S]ettings [D]isplay options [Q]uit
 AMU 0:                | 335.8M/336.2Mh/s | A: 1660 R:  0 HW:  17 WU:  4.7/m
 AMU 1:                | 335.6M/336.1Mh/s | A: 1770 R:  0 HW:  20 WU:  4.5/m
 BAJ 0:  max 50C 3.34V | 8.328G/8.144Gh/s | A:40541 R:208 HW: 473 WU:112.7/m
 BF1 0:                | 2.666G/2.632Gh/s | A:13398 R: 48 HW:1002 WU: 37.4/m
 BF1 1:                | 2.602G/2.616Gh/s | A:13086 R: 64 HW: 917 WU: 36.6/m
 BF1 2:                | 2.701G/2.703Gh/s | A:13832 R: 32 HW: 929 WU: 37.9/m
----------------------------------------------------------------------------

All of the hw errors make me kinda sad.

Same as me, I am getting a lot of HW errors. PXY0 is an ASICminer blade overclocked and has a far less ratio between accepted shares and HW errors.

Code:
PXY 0:       |  9.87/12.82/12.46Gh/s | A:2724 R:56+14(1.9%) HW: 393/.91%
 BPM 0:       |  2.38/ 2.38/ 2.28Gh/s | A: 486 R: 3+ 0(.63%) HW: 302/3.8%
 BPM 1:       |  2.35/ 2.34/ 2.17Gh/s | A: 465 R: 0+ 0(none) HW: 310/4.1%
 BPM 2:       |  2.36/ 2.36/ 2.14Gh/s | A: 425 R: 0+ 0(none) HW: 293/3.9%
 BPM 3:       |  2.32/ 2.32/ 2.21Gh/s | A: 443 R: 3+ 0(.68%) HW: 334/4.3%