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NotFuzzyWarm
Legendary
 Offline
Activity: 3626
Merit: 2535
Evil beware: We have waffles!
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July 01, 2022, 10:07:37 PM
Last edit: July 02, 2022, 10:17:01 PM by NotFuzzyWarm |
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is it okay to run the compac f with 200Mhz without a cooling fan? I tried it but it gets very hot. What is the maximum recommended working temperature for it? Define 'very hot'. If you can touch it for a few seconds and not get burned it's fine. Plus even with a fan, the f;s still refer to run at a quite warm temp. Around 125F is ideal. The other thing is that the f's really prefer using a starting freq of at least 300MHz. Just the nature of the chip used (and most mining chips) |
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nullama
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July 02, 2022, 05:47:35 AM |
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is it okay to run the compac f with 200Mhz without a cooling fan? I tried it but it gets very hot. What is the maximum recommended working temperature for it?
I'm not sure there's a safe speed to run them without a fan. They get pretty hot. And also these work better at higher speeds, so it doesn't really make too much sense to run them slowly, and therefore it doesn't make too much sense to run them without a fan. You can get a PWM controlled fan that is pretty much noiseless and you would be able to run the compac f at full speed without worrying about it melting down or causing a fire hazard. |
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BiticaMan
Newbie
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Activity: 28
Merit: 0
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July 02, 2022, 11:10:50 PM |
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Hi guys, could you help me?
I put my stiks to work, I have 11 and have had a problem with 2 so far.
1 stick compacF is being reset and cgminer disables it, I already changed the usb hub and it continued like this.
Another stick is working, but its speed is dropping it was at 450mhz and it has already dropped to 390mhz.
What can I do to resolve these issues? Testing or something?
Thanks.
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Sledge0001
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July 03, 2022, 12:35:50 AM |
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Well spent the entire day doing a fresh install of Raspbian and then the Kano latest version of Cgminer on both of my Pi4's from them. What a treat! I actually like puzzles so this worked out the brain quite well since I am mostly a Windows guy it was nice to dive a bit more into the Linux world..... I know... I know...  I do still have 2 sticks out of 30 that still need a tinkering with but steady progress is being made on all fronts. |
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hZti
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July 05, 2022, 04:15:55 PM |
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Is everyone using these sticks for letters mining or what is the point? I calculated the profits and with free electricity you will still only make 0.08 USD per day. This means with rising difficulty it will for sure be impossible to even hit a ROI. I would be very happy if somebody would explain to me what the use of this hardware is.
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Sledge0001
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July 05, 2022, 05:08:16 PM |
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Is everyone using these sticks for letters mining or what is the point? I calculated the profits and with free electricity you will still only make 0.08 USD per day. This means with rising difficulty it will for sure be impossible to even hit a ROI. I would be very happy if somebody would explain to me what the use of this hardware is.
They are good for home "lottery" or "solo" mining. |
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os2sam
Legendary
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Activity: 3578
Merit: 1090
Think for yourself
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July 05, 2022, 05:14:56 PM |
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I would be very happy if somebody would explain to me what the use of this hardware is.
It's a hobby. |
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
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Julesau
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Activity: 1
Merit: 0
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July 05, 2022, 06:23:30 PM |
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Bonjour.A quoi sa sert ce matériel?  |
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hZti
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July 06, 2022, 08:43:32 PM |
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Is everyone using these sticks for letters mining or what is the point? I calculated the profits and with free electricity you will still only make 0.08 USD per day. This means with rising difficulty it will for sure be impossible to even hit a ROI. I would be very happy if somebody would explain to me what the use of this hardware is.
They are good for home "lottery" or "solo" mining. Are those stickers even fast enough to potentially mine a block? Because what I read sometimes is that the speed will never be enough since a quicker miner will always "steal" the block before it can be submitted? At least for the even more slow block eruptors etc. I would be very happy if somebody would explain to me what the use of this hardware is.
It's a hobby. I unterstand that and I want to try it too, but I don't really see the point in buying 20x a USB Miner and not instead one "real" miner. |
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os2sam
Legendary
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Activity: 3578
Merit: 1090
Think for yourself
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July 06, 2022, 09:03:55 PM |
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Are those stickers even fast enough to potentially mine a block?
Yes they can potentially mine a block. Speed/Hashrate has nothing to do with the ability of finding a block. Higher hash rates just have a higher probability of finding a block. Because what I read sometimes is that the speed will never be enough since a quicker miner will always "steal" the block before it can be submitted?
Your talking network latency there. That has nothing to do with the hash rate of the mining device. You want to use a pool that has good network connectivity so that the block candidate gets propagated as fast as possible. |
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?
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NotFuzzyWarm
Legendary
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Activity: 3626
Merit: 2535
Evil beware: We have waffles!
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July 06, 2022, 09:53:03 PM
Last edit: July 07, 2022, 02:48:06 PM by NotFuzzyWarm |
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Are those stickers even fast enough to potentially mine a block?
Yes they can potentially mine a block. Speed/Hashrate has nothing to do with the ability of finding a block. Higher hash rates just have a higher probability of finding a block. Because what I read sometimes is that the speed will never be enough since a quicker miner will always "steal" the block before it can be submitted?
Your talking network latency there. That has nothing to do with the hash rate of the mining device. You want to use a pool that has good network connectivity so that the block candidate gets propagated as fast as possible. Precisely. Remember, it is not only just 1 chip inside of any given miner that solves the hash but extends to being just 1-core inside of that chip (and these days it is over 4k cores per chip) that spits out the correct number. IF a miner of yours finds a block then what matters the most is how fast that is transmitted to your pool (solo or otherwise) and it in-turns broadcasts that to the BTC network so other miners can build on it to confirm it. Ja having a full-up ASIC miner with several hundred chips in it "gives you more rolls of the dice" per-second so to speak but as sledge0001 proved earlier this year, even against the astronomical odds a 1-chip stick miner CAN find a block. In his case it was one of Sidehack's Compac-F sticks that did it.But as other have said: Sticks are strictly for hobby or 'lottery ticket' use. Frankly, if you insist on pushing the envelope of those uses, just get an old s9, pull one of its cards and undervolt/underclock it and get damn quiet several THs pulling around 800-900w. Same goes for an Avalon 841 except ya don't have to pull a card. |
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CochnocherCrypto
Jr. Member
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Activity: 55
Merit: 17
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July 07, 2022, 10:44:52 PM |
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Finally done for a little bit with my Ferrari collection lol. Quiet, low power and maybe one day I'll hit the lotto LOL!
Raspi4 (8gb)
Noctua NF-A12x25 (x3)
Noctua NF-A4x20 (x6 (Don't really need anymore)
Gekkoscience Hubs (x4 (I have a 5th but the horizontal shared 6A port is burnt up so I use that now for testing)
EVGA Gold 800W PSU (had it just sitting around)
The Egorlabs PMD is reading EVERYTHING but the Pi itself.
Single PCIe to the PSU with splitters to connect the hubs. Since I have 4 hubs I just jumped 3 together and they all go to the Pi on 1 USB. Clocks are at 550MHz, all sticks are at 2.9X-3.0X amps and are intendent of sharing any power.
Pardon some of the mess, this is in my garage/shop area kind of in a temporary home.
Just read this - IRONIC! I also have 5 gekko hubs and the fifth was purchased for the same reason. If you're interested - I found a fix! Your issue may be different than mine but I decided to take a crack at it because the hub was only about 6 weeks old. I found that all of the solder was in tact - assumed one of the caps had broken loose or something so after I took the board apart, I noticed the lights on my USB MultiMeter turning on and off as I was slightly bending the PCB. SO! I removed the lower 2 gold-colored spacers from the middle 2 posts and used the lower screws to pull the center of the PCB down. I now have a perfectly working 5th hub again - but like you, I also just use it for testing lol. See linked photo and you'll see what I'm talking about. https://imgur.com/a/TskjRxH |
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bigdaddymccarron
Member
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Activity: 71
Merit: 16
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July 09, 2022, 04:06:11 PM |
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I have 2 bad USB hubs. Both of them have lost the regulator for port 6 & 7. I attempted to repair 1 buy replacing the regulator but it is very unstable above 425mhz. The second I have done nothing to try an fix it. I have reached out to sidehack but he will not reply to my emails.
Be careful running these hubs with 5 CompacF's in them, both hubs that I have used this way result in the same failure. The regulator seems to overheat and burn out. At the moment support seems to be nonexistent. Hell, I am not asking for them to be replaced, I asking if they can be repaired and what would that repair cost be. I think the USB regulators need a heat sink on them to help dissipate the heat.
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sidehack (OP)
Legendary
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Activity: 3318
Merit: 1848
Curmudgeonly hardware guy
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July 09, 2022, 04:13:11 PM |
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Sorry about that. The last while has been pretty hectic. The next batch of hubs going out is a new design better able to handle high power, and with a bit of extra safety built in.
The usual path for support is to talk to the authorized reseller you got your gear from.
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bigdaddymccarron
Member
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Activity: 71
Merit: 16
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July 09, 2022, 04:19:41 PM |
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Sorry about that. The last while has been pretty hectic. The next batch of hubs going out is a new design better able to handle high power, and with a bit of extra safety built in.
The usual path for support is to talk to the authorized reseller you got your gear from.
As I said, I am willing to pay you to fix them. Going through the reseller would just waste time and money. |
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CochnocherCrypto
Jr. Member
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Activity: 55
Merit: 17
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July 10, 2022, 05:27:14 PM |
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So before I found a solution that worked I had reached out to MineFarmBuy who did happily offer to RMA the hub. To minimize worker downtime I bought a replacement and waited for it to arrive before mailing the one in question back. It was the day I got it that I attempted to fix it myself (I also thought regulator or cap would be the culprit) but noticed while I was flexing the PCB that the ports would power up again so I figured it was something internal to the PCB. I’m a service technician at a major Chrysler/Jeep/dodge dealership and my area of specialty is automotive electronics / wiring / infotainment and I’m CONSTANTLY repairing electronics at work so I figured this wouldn’t be that difficult. I was wrong lol. If you didn’t buy the hubs on eBay, in my experience with both 419Mining and MineFarmBuy - they are extremely helpful in assistance with RMA issues.
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sidehack (OP)
Legendary
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Activity: 3318
Merit: 1848
Curmudgeonly hardware guy
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The primary reason GekkoScience uses authorized resellers instead of more direct sales is to offload customer service issues. We're happiest when we can focus resources on design and manufacture and sweet new ideas, so there's strict rules in place for resellers to handle all their own customer service. If I have to take care of a problem because a reseller doesn't, that reseller risks losing access to our stuff in the future. It's always best to buy from 419Mining, ASICPuppy, MineFarmBuy, BitcoinMerch, Eyeboot or bitshopper.de because those are the guys I've trusted for years to take care of things for their people. Rather than being a waste of time and resources, they act as hubs for any problems and send stuff back for RMA in larger combined lumps that are easier to deal with rather than piecing things out all over the place.
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jack1cryptotalk007
Member
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Activity: 60
Merit: 20
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July 12, 2022, 03:24:09 PM |
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... we can focus resources on design and manufacture and sweet new ideas, ...
Are you going to use Intel new sha256 chip to make new BTC miner? BM chip seem close shop, no much technical information about chip. It is not reliable. When does Intel release its new chip technical details to public? Another issues about BM1387 and 1397, they can not be common general sha256 hashing device. Input should be 72 bytes message. then, number of output nonces seem randomized. It can not output hash value. BM1397 seem got less nonce rate (output) than BM1387 even BM1397 got running higher frequency. Hash rate is a benchmark. But nonce rate is more important benchmark. How many of nonces did ASIC chip shift out in per second? More nonce were found, better the chip worked. |
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sidehack (OP)
Legendary
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Activity: 3318
Merit: 1848
Curmudgeonly hardware guy
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July 12, 2022, 04:02:10 PM |
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No mining ASIC will send back the hash. They all send back the nonce, and the output will be random because that's just the nature of hashing. If fewer responses come back from something with a higher hash rate, it's probably because of the ticket mask - a system to reduce IO load by ignoring nonces for a hash below a certain threshold. It's just like the pool target difficulty but internal to the hardware.
More nonces doesn't mean a better chip. More diff-1 nonces sure, but the actual nonce count must be scaled against the share value.
We've had some inquiries to Intel, but no news to report yet.
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