Topic: GekkoScience Compac BM1384 Stickminer Official Support Thread - page 46. (Read 268030 times)
Thanks for the info, I will see of cranking back the clock speed will help.
Not likely.
I am running a Superbpag hub for the CompacsSB current issue from the Motherboard as well?
Make sure it's not a current limitation where the USB port senses an overdraw and cuts power. Crank the frequency down and see if they'll run longer on the new setup.
I've had Compacs running in our test setup (Eyeboot powered hub, Debian 7, cgminer-gekko) for weeks continuous without a single dropout.
I've had Compacs running in our test setup (Eyeboot powered hub, Debian 7, cgminer-gekko) for weeks continuous without a single dropout.
I had been mining away with 4 Compacs for about 9 months and every 3-4 days one of them would Zombie out and I would have to unplug it and replug it in, restart cgminer, and then all was well again. Recently I upgraded that computer with a new motherboard, CPU, and RAM (same Windows install) and now I cannot got 6 hours without one or sometimes all of the Compacs going Zombie. Would you all suggest reinstalling a driver or something else to resolve the issue? Thanks.
It actually depends; some U3s run the BM1384 chips, but those are the ones that run at 0.8w/gh, the ones with slightly lower power consumption and look like a big mac with holes in it.
All of the U3s used the same chip, and none of them used BM1384. Version 1 and Version 2 of the U3 were identical except for the external case and both used BM1382.
Hopefully it'll work better for yours than it did for mine.
Check the U3 thread
Check the U3 thread
Well my U3 has 1382 chips in it as its now apart to see if I can see anything wrong. Ill re-do the thermal goo and fire it up again on the off chance the old crusty paste had anything to do with it. If not then its going for spares or repairs on ebay.
It actually depends; some U3s run the BM1384 chips, but those are the ones that run at 0.8w/gh, the ones with slightly lower power consumption and look like a big mac with holes in it.
Source?
it looks like you are describing the batch 1? the BM1382s would run at the 0.8W/GH and 60/68GH/s though..
I've never seen one.
Also, 0.8 is a terrible efficiency for BM1384 device, even considering a fan and buck losses. I'd expect more like 0.65 at the worse, and that's assuming they're running the chips at 400MHz - which would make about a 90GH U3.
Also, 0.8 is a terrible efficiency for BM1384 device, even considering a fan and buck losses. I'd expect more like 0.65 at the worse, and that's assuming they're running the chips at 400MHz - which would make about a 90GH U3.
Hi sidehack, I've got a dead U3 would the chips be any good for a USB stick? I'd like one but obviously can't get them anymore. Would it be able to be run from a standard hub (non powered) through an Antrouter?
Thanks.
Thanks.
The U3 uses the BM1382 chip (same as S3)
The compac stick uses BM1384(same as S5)
Worth mentioning as I had the same idea when 2 of my U3 died :p
Hi sidehack, I've got a dead U3 would the chips be any good for a USB stick? I'd like one but obviously can't get them anymore. Would it be able to be run from a standard hub (non powered) through an Antrouter?
Thanks.
Thanks.
The U3 uses the BM1382 chip (same as S3)
The compac stick uses BM1384(same as S5)
Worth mentioning as I had the same idea when 2 of my U3 died :p
Great minds
ok maybe not so great compared so some guys on here
Well the U3 is apart and the thermal paste is all crunchy so going to replace it and give it another try.
Hi sidehack, I've got a dead U3 would the chips be any good for a USB stick? I'd like one but obviously can't get them anymore. Would it be able to be run from a standard hub (non powered) through an Antrouter?
Thanks.
Thanks.
The U3 uses the BM1382 chip (same as S3)
The compac stick uses BM1384(same as S5)
Worth mentioning as I had the same idea when 2 of my U3 died :p
Super! Thanks sidehack
Yep.
Also, there's still a lot of demand for Compacs and I won't have anything better for a while so I'm working with some resellers to put together another batch. No direct sales from me (sorry, but it is fairly time-consuming) but the regular websites should have stock. Nothing's for sure yet, but it's pretty likely.
Also, CrazyGuy should have stock available soon; this week's priority will be finishing up the tail end of Batch 2 manufacture, most of which are his. I'm pretty sure he's got Antrouter setup to handle Compacs as well, probably worth looking at his Group Buys thread.
Also, there's still a lot of demand for Compacs and I won't have anything better for a while so I'm working with some resellers to put together another batch. No direct sales from me (sorry, but it is fairly time-consuming) but the regular websites should have stock. Nothing's for sure yet, but it's pretty likely.
Also, CrazyGuy should have stock available soon; this week's priority will be finishing up the tail end of Batch 2 manufacture, most of which are his. I'm pretty sure he's got Antrouter setup to handle Compacs as well, probably worth looking at his Group Buys thread.
No problem. Worth a go. Thanks for getting back to me
No. The U3 chips are worse than what I'm currently working with and it's not worth revamping a design for 4 sticks. They'd end up costing twice as much for half the hashrate.
Hi sidehack, I've got a dead U3 would the chips be any good for a USB stick? I'd like one but obviously can't get them anymore. Would it be able to be run from a standard hub (non powered) through an Antrouter?
Thanks.
Thanks.
Yes, pretty much any time you go over 150-200MHz you should provide airflow to keep 'em cool.
What happens to your error rate when you turn the voltage down and keep it at 300MHz? Additionally, when chips get hot they actually draw more current for the same work, so keeping it running cooler will increase the per-unit efficiency.
Additionally, if that's one of the batch 2 Compacs, I can't guarantee overclockability because they're pulled chips. I test everything to stable at 640mV 200MHz (same as the Batch 1 sticks with new ASICs), and if it takes more than 660mV to level out it gets rejected and I replace the ASIC. But since "overclock" is by definition not a standard state and not really controllable, and a waste of my time to test on every stick, I don't guarantee overclock performance on anything. Hopefully it's not that far out of spec and you just have the voltage turned higher than it needs to be.
What happens to your error rate when you turn the voltage down and keep it at 300MHz? Additionally, when chips get hot they actually draw more current for the same work, so keeping it running cooler will increase the per-unit efficiency.
Additionally, if that's one of the batch 2 Compacs, I can't guarantee overclockability because they're pulled chips. I test everything to stable at 640mV 200MHz (same as the Batch 1 sticks with new ASICs), and if it takes more than 660mV to level out it gets rejected and I replace the ASIC. But since "overclock" is by definition not a standard state and not really controllable, and a waste of my time to test on every stick, I don't guarantee overclock performance on anything. Hopefully it's not that far out of spec and you just have the voltage turned higher than it needs to be.
if i remember right if your running them at 300 passive cooled with no fan thats not a good idee
stuff degrades after heat starts to kick in
your best bet would to be buy a usb powered fan and have it blowing on the sticks
stuff degrades after heat starts to kick in
your best bet would to be buy a usb powered fan and have it blowing on the sticks
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