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michaelmclees
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November 06, 2012, 10:14:04 PM |
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Their practice of doing a 24 hour burn in has been discussed before. I'm perfectly ok with receiving my unit a day or two later if it means guaranteeing it will work when I get it. Of course there's the chance I might make a few BTC less, but I'd just be greedy if I said the Risk>Reward.
No. I think it could be proven that short burn-in times have low risk and high rewards. |
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crazyates
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November 06, 2012, 10:19:30 PM |
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Their practice of doing a 24 hour burn in has been discussed before. I'm perfectly ok with receiving my unit a day or two later if it means guaranteeing it will work when I get it. Of course there's the chance I might make a few BTC less, but I'd just be greedy if I said the Risk>Reward.
No. I think it could be proven that short burn-in times have low risk and high rewards. I actually do consider 24 hours to be a short burn-in test. You've never overclocked your CPU and done a Prime95 test for 48+ hours? |
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MrTeal
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November 06, 2012, 10:21:34 PM |
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You can get a lot of the benefit of a longer burn in by running at elevated temperature.
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jjshabadoo
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November 06, 2012, 10:42:25 PM |
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This doesn't take into account someone who is buying one unit. What the F happens to them if they get the "shitty" one ?
They get screwed while the rest who got "lucky" benefit.
Jeez folks, BFL sure does take some shet here, some for good reason, some not.
This is NOT a good reason to give them a hard time. If you were so concerned about a single day of operating your unit, you should have made your own device.
BFL has to back up their product. If they even send out 100 defective units which could have been caught by better testing, they have 100 more pissed off folks potentially and 100 more transactions, etc. etc.
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PuertoLibre
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November 06, 2012, 11:06:11 PM |
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You are surprised by this?
Who said I was surprised by anything? I am just pointing this out. People clearly think all the Pre-orders will ship at the same time. There hasn't been any indication to support that. This is a post to inform others of that reality. |
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crazyates
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November 07, 2012, 04:00:03 AM |
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Jeez folks, BFL sure does take some shet here, some for good reason, some not.
This is NOT a good reason to give them a hard time.
+1 |
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CoinHoarder
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In Cryptocoins I Trust
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November 07, 2012, 04:14:54 AM |
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Jeez folks, BFL sure does take some shet here, some for good reason, some not.
This is NOT a good reason to give them a hard time.
+1 We're not "sheting" on BFL. I am just stating that IMO a 24 hour burn in is not really necessary to determine faulty rigs. It could be determined with a minimal/non existent margin of error in a shorter time frame. There aren't any moving parts except for the fans. These things are meant to do one thing only (hence ASIC) and that is spit out hashes. If it runs at spec speeds for 12 hours with no problems, you guys really think that this would not be sufficient enough? Even 12 hours seems extreme to me, but maybe I am alone in this. |
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Keefe
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November 07, 2012, 06:49:09 AM |
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michaelmclees
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November 07, 2012, 02:36:23 PM |
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If it runs at spec speeds for 12 hours with no problems, you guys really think that this would not be sufficient enough?
Even 12 hours seems extreme to me, but maybe I am alone in this.
No, you're not alone. It's almost like some people enjoy ignoring the math. The same people probably buy a 20 dollar insurance policy for their 40 dollar, almost never fail, devices. It's nuts. |
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squeept
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November 07, 2012, 04:20:00 PM |
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I would like to see it turned on, hit steady state temps, turned off to a complete cool, and repeated several times. Shouldn't take too long, and would be much more important than a single, long burn in.
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I'm just going to keep repeating "it's an Altera HardCopy" because I haven't the slightest clue what I'm talking about.
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crazyates
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November 07, 2012, 04:45:36 PM |
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I would like to see it turned on, hit steady state temps, turned off to a complete cool, and repeated several times. Shouldn't take too long, and would be much more important than a single, long burn in.
How does that test anything? 1) I don't plan on turning my Single on and off several times a day. I plan on starting that thing up, and letting it run for weeks on end, only stopping to update CGMiner. 2) Running for even an hour doesn't mean anything. I had a 5970 that would randomly be declared SICK, but would take anytime from 30 seconds to 12 hours. |
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Meatball
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November 07, 2012, 06:11:18 PM |
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I would like to see it turned on, hit steady state temps, turned off to a complete cool, and repeated several times. Shouldn't take too long, and would be much more important than a single, long burn in.
How does that test anything? 1) I don't plan on turning my Single on and off several times a day. I plan on starting that thing up, and letting it run for weeks on end, only stopping to update CGMiner. 2) Running for even an hour doesn't mean anything. I had a 5970 that would randomly be declared SICK, but would take anytime from 30 seconds to 12 hours. Squeept's idea isn't a bad one. Turning it on/off will cause all the chips and soldering points to expand and contract as it heats up and cools down which would certainly cause any soldering/connection problems to surface. |
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squeept
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November 07, 2012, 06:31:09 PM |
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Exactly. The cooling cycles and subsequent thermal flexing will expose any solder defects. And as much as you'd like to run your device forever, the host can crash, the power can go out, etc, so it will be turned on and off more than just once  |
I'm just going to keep repeating "it's an Altera HardCopy" because I haven't the slightest clue what I'm talking about.
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Merrick
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November 11, 2012, 04:38:29 AM |
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Exactly. The cooling cycles and subsequent thermal flexing will expose any solder defects. And as much as you'd like to run your device forever, the host can crash, the power can go out, etc, so it will be turned on and off more than just once Quiet you. My hardware will run forever and ever. |
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abeaulieu
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November 11, 2012, 06:06:51 PM |
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Exactly. The cooling cycles and subsequent thermal flexing will expose any solder defects. And as much as you'd like to run your device forever, the host can crash, the power can go out, etc, so it will be turned on and off more than just once Quiet you. My hardware will run forever and ever. Until ASICs come out.... |
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abeaulieu
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November 16, 2012, 02:10:33 AM |
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I don't think this comes as a surprise to many. If the ASICs aren't on the boards yet then I wouldn't expect that the other components would be on there already. They will probably reflow everything together (or have a contract manufacturer do it). |
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MrTeal
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November 16, 2012, 02:55:17 AM |
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BFL has already said their ASICs aren't done at the foundry and they don't expect them until the end of November. This shouldn't be a surprise. |
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Meatball
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November 16, 2012, 05:07:04 AM |
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Why people feel the need to continue to repeat the same thing, over and over, I'll never understand. Great, they're going to be late, not like we haven't expected, nor known about that for a while. No reason to post up a new thread or post every 2 days shouting, "BFL is late!"
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