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freshzive
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June 27, 2012, 09:34:44 PM |
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Has anyone that received Singles recently gotten some of the older units with the gigantic fans on the bottom?
2 of the units I received today have the fans and one of them is throttling heavily....kind of pisses me off that they're still sending out the old revisions. Probably refurbished units instead of new ones too.
Do they have heatpipes? or the older standard heatsinks? I didn't see heatpipes, but I will double check again when I'm home. I guess it's not really that big of a deal as long as I can get them to run at 832+/-10%....one of them is sitting at ~650Mh/s right now though and pissing me off. This is the cgminer line after ~6 hours: BFL 2: 54.7C | 757.1/ 641.2Mh/s | A:401 R: 2 HW: 0 U: 7.75/m The other 3 (2 of the newest rev, one with the big fan) are all averaging around 810Mh/s even though some of their temps are actually higher than this one. Doesn't make sense to me. |
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Askit2
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June 27, 2012, 10:18:40 PM |
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Just curious but what temp is your room, and can you check what firmware your are running using the Easyminer from butterfly labs website.
I had issues from day one but was in the -10% range as my unit had been flashed pre delivery with 816. That having been said if you are intake temperature under 72F and it won't run 832 without throttling it sounds like you either have a lose heatsink from transport or bad QC or a dud.
Hope it helps some
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malevolent
can into space
Legendary
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Activity: 3472
Merit: 1724
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June 27, 2012, 10:40:46 PM |
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There is no way to change the firmware on the singles without a windows machine? Who the hell runs windows these days?
Maybe try wine/windows on a virtual machine/CrossOver. |
Signature space available for rent.
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freshzive
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June 27, 2012, 11:59:28 PM |
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They do have the new heatpipes, so I was wrong on that issue. I don't notice any red light flashing that would be indicative off throttling however. Room temp is around 74C, but obviously a little warmer on the shelf with lots of other FPGAs. How often do the lights flash?
Guess I'll install Windows on a USB and check out what firmware they're running. Perhaps downflashing to a lower speed would help?
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dave3
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June 28, 2012, 02:11:19 AM |
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Has anyone that received Singles recently gotten some of the older units with the gigantic fans on the bottom?
2 of the units I received today have the fans and one of them is throttling heavily....kind of pisses me off that they're still sending out the old revisions. Probably refurbished units instead of new ones too.
Yes, the two Singles I received also have the external fans on the bottom. I'm pretty sure they're still rev. 3, though. I think I remember BFL mentioning that they were adding fans to some of the rev. 3 units, as-needed. I've got both of the units running the 816 firmware without throttling in an un-airconditioned ~ 85°F room. BFL 0: 57.8C | 811.0/799.4Mh/s | A:340 R:5 HW:0 U:11.01/m
BFL 1: 59.0C | 811.0/797.1Mh/s | A:355 R:3 HW:0 U:11.49/m
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kano
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Merit: 1851
Linux since 1997 RedHat 4
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June 28, 2012, 02:29:58 AM |
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Has anyone that received Singles recently gotten some of the older units with the gigantic fans on the bottom?
2 of the units I received today have the fans and one of them is throttling heavily....kind of pisses me off that they're still sending out the old revisions. Probably refurbished units instead of new ones too.
They're not necessarily the "old" versions (which is a relative term now that the internals are reasonably well-understood). The later revisions often have a bottom 80mm fan. It's annoying because they're loud and not PWM (although you can easily throw a fan controller inline), and the wiring is pure ghetto. I've found that the "bottom fan" models probably shouldn't be flashed with the higher-speed bitstreams, as they're more likely to flake out. To be completely honest, if your QC process indicates that you need to put that fan on the bottom to ship it, you probably shouldn't ship it at all. But they've been doing this ... for what is it now? ... 11 years?  |
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freshzive
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June 28, 2012, 02:36:47 AM |
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Turns out it's actually one of the ones without the fans on bottom that's overheating, finally saw some lights flashing  Going to try flashing some slower firmware, but I'm wondering if I should open it up and check to make sure the heatsink is seated correct? is that fairly painless? |
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BCbitcoin
Newbie
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June 28, 2012, 02:36:57 AM |
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Has anyone opened one up recently to see if they are still sanding off the chips?
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rjk
Sr. Member
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Merit: 250
1ngldh
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June 28, 2012, 02:46:48 AM |
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Has anyone opened one up recently to see if they are still sanding off the chips?
According to a comment a while back that BFL made, the chips were only sanded for the first small batch, and the rest are being produced custom with no silkscreening at all. |
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rjk
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1ngldh
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June 28, 2012, 03:16:07 AM |
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It used to be 1.1, so they must be updating it right this instant. Did you notice the new "auto tune" package? Can't wait! |
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BFL
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June 28, 2012, 03:17:02 AM |
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Sorry... we're updating the page with a new version and auto speed tuning. It'll be finished uploading shortly. |
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freshzive
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June 28, 2012, 03:19:31 AM |
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Ah, cool. I'd never downloaded it before so I had no idea.
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freshzive
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June 28, 2012, 03:29:21 AM |
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any chance of getting 1.1 in the meantime? sorry for my impatience, i just unplugged all my miners earlier and was hoping to troubleshoot them tonight before bed
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rjk
Sr. Member
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Merit: 250
1ngldh
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June 28, 2012, 03:31:09 AM |
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any chance of getting 1.1 in the meantime? sorry for my impatience, i just unplugged all my miners earlier and was hoping to troubleshoot them tonight before bed
Looks like it's still on the site: http://www.butterflylabs.com/wp-content/uploads/2012/05/EasyMiner_V_1.1_Beta.exeI'm downloading the auto tune package now... wonder what magic it contains for a 70+ mb file! |
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freshzive
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June 28, 2012, 03:37:54 AM |
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Weird. The one that was throttling was loaded with the 864 firmware (arrived that way from BFL).
EDIT: and it works beautifully with the 832 firmware! yay@!@
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Askit2
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June 28, 2012, 07:59:27 AM |
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After heatsink mod and fixing dried out white paste on the chips I was able and am able to hit 864 at a 75F room temp, my intake temp is slightly lower at 74.8F.
Increasing the baudrate on the com port (shouldn't matter) got 860.4 with an 864 bitstream. I would say it seems to make a small difference as I had shown 858-859 before.
Interesting the one I got that had three fans (Two internal, One external) and was running an 816 firmware. Now it works great.
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jddebug
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June 28, 2012, 08:12:40 AM |
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After heatsink mod and fixing dried out white paste on the chips I was able and am able to hit 864 at a 75F room temp, my intake temp is slightly lower at 74.8F.
Increasing the baudrate on the com port (shouldn't matter) got 860.4 with an 864 bitstream. I would say it seems to make a small difference as I had shown 858-859 before.
Interesting the one I got that had three fans (Two internal, One external) and was running an 816 firmware. Now it works great.
How difficult of process was it to do the heatsink mod (and what did you mod?) and change the paste? |
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Turbor
Legendary
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BitMinter
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June 30, 2012, 02:09:04 PM |
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I had a dead bottom fan on one of my singles. That small POS that makes the singles whine. I was trying to sleep when the single woke me up with that nasty rattling sound. Got rid of the housing, turned the top fan and added a spare 120mm fan to the side. Mission accomplished !
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