By the way, some heat sink notes:
Unit was hashing at about 35gh, water cooling block on top (sedion), been running for months. Finally decided to pull the sink and put some authentic artic pads on the units to speed things up.
Back together, speed is 5gh. Um....
Took apart, put artic silver on block and on each chip. Smoothed out, put together, 15gh. Took apart, put together, 20gh. Took apart, smoothed silver on two chips, put together, ZILCH. Board must have shorted.
Sigh. Started over, cleaned board, cleaned between chips, over and over, cleaned plate, put artic silver in a thin amount on plate, smoothed with razor blade, nothing on chips, put together, 35gh.
I give up. :-)
Topic: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly - page 11. (Read 137902 times)
How much money would it take to get the z-link finished? BTC0.25? BTC0.5?
Ok, i will try today.
I have. 2 chilli for sell
Complete
Hashing at 30 gh and 35 gh
Pm me
Complete
Hashing at 30 gh and 35 gh
Pm me
I've seen screenshots with stat readouts for the individual hashing engines. Is this possible with the chili? My hashrate is only 29GHs right now, and I have a suspicion it's got to do with the coverage of this heatsink, but the easy way to tell would be if a bunch of engines are down on a chip or two.
@Mr Teal ?
Any help ?
If it's running at 70C and 15GH/s, your issue is likely the heatsink wasn't properly mounted when you changed the thermal paste. Reseat it. Any help ?
@Mr Teal ?
Any help ?
Any help ?
Right now is about 70.
Is is about 65-70
But when i use the firmware flash to check it show 29-30gh
then i do the power cycle.
Then i power it up a gain only run 15-16gh since 3 days now
Is is about 65-70
But when i use the firmware flash to check it show 29-30gh
then i do the power cycle.
Then i power it up a gain only run 15-16gh since 3 days now
My only run at 15-16GH ?
i just replace the thermal paste.
Any suggestion to fix ?
Did it just start working at 15-16 after you replaced the thermal paste?i just replace the thermal paste.
Any suggestion to fix ?
What temperature does it read at that speed?
My only run at 15-16GH ?
i just replace the thermal paste.
Any suggestion to fix ?
i just replace the thermal paste.
Any suggestion to fix ?
A big thank you to Mr. Teal for fixing my board. Not only am I happy with my boards, but I am especially pleased with the fantastic customer service!
Your heat sink might not be on right or contacting everything. The code will slow the chips down which will really cut the temps.
C
C
I will try this. At first it seemed to be the vregs limiting it, as it throttled after the chips hit 65C at 32GHs, but I wonder if one or two of the chips aren't making good contact because of the flexing from shipping.
...
For the second board, it does sound like it might have the same issues that many boards from that group buy are experiencing. We're working on firmware as a workaround for some of those issues, and hope to have it out soon.
For the second board, it does sound like it might have the same issues that many boards from that group buy are experiencing. We're working on firmware as a workaround for some of those issues, and hope to have it out soon.
Are you guys still working on firmware workaround around this "temp reading error"?
Hairdryer trick works but when they do go down, to restart it i have to use hairdryer. Now, i figured I only need to heat them to 45-48 C (as reported by bfgminer) and let them go. The boards continue from that point on by themselves. Just the initial start up from ~20C to 40C is problematic. Once around 45C they manage ok.
does it necessary to send my BFl chips, or it is possible to buy those too ?
I just got my chili, and have it hooked up and running, but it's only running at 27.5GHs, and the temp isn't going higher than 60C, when these chips are rated for 70C? I have another fan blowing on the vregs, which have heatsinks attached.
Are you using a backplate? I've found that having something on the back of the board for the sake of stiffness ensures that the board doesn't flex so chips can't pull away from the heatsink. At that speed it sounds like a cooler contact issue to me too. My water cooled Chili ran around 33GHs @ 61C but when I added a fan over the VRMs it went to 38GHs @ 69C.
I just got my chili, and have it hooked up and running, but it's only running at 27.5GHs, and the temp isn't going higher than 60C, when these chips are rated for 70C? I have another fan blowing on the vregs, which have heatsinks attached.
Try re-seating your cooler, it can help.
Your heat sink might not be on right or contacting everything. The code will slow the chips down which will really cut the temps.
C
C
I just got my chili, and have it hooked up and running, but it's only running at 27.5GHs, and the temp isn't going higher than 60C, when these chips are rated for 70C? I have another fan blowing on the vregs, which have heatsinks attached.
Restarts are part of the gamble. Only time will tell.
I have a theory that the Chili was designed and prototype tested in an "American Air conditioned summer workshop"
Now that they are out in the wild (of the rest of the world) There are some "exceptions to the standard" being found.
The next firmware release will probably bring things back on track.
If we are still hashing them in the coming summer then they will have had a good testing cycle.
The unfortunate reality is that they will be way out of date by then ( in 6 months they may be the "graphics cards" of the asics)
Such is the speed of development of mining hardware.
Yeah this is the ultimate example of diminishing returns, with that said I'm very happy with my chilis they go days and days with out restarting including the Lucko boards(pleasantly surprised). And yes I do miss the 2 I sold you...
The 2 MrTeal Chili boards are now in my remote cluster (12 boards) (the boards I can trust) managed by 2 rPi's, the cluster is split into 2 parts, for further safety.(hash rate is 417Gh at the pool)
As you say they are stable and reliable. My only concern is that with the rPi donations turned on, the pool switch does sometimes cause a crash.
At home I have the last 4 wobbly boards that need the supervision of my mini desktop pc.
Under windows they run most of the day and usually manage to restart themselves without intervention.
On the rPi if they crash then they stay down.
The hash rate for these 4 is 126Gh at the PC but only 87Gh at the pool, so they are restarting and crashing a lot.
Restarts are part of the gamble. Only time will tell.
I have a theory that the Chili was designed and prototype tested in an "American Air conditioned summer workshop"
Now that they are out in the wild (of the rest of the world) There are some "exceptions to the standard" being found.
The next firmware release will probably bring things back on track.
If we are still hashing them in the coming summer then they will have had a good testing cycle.
The unfortunate reality is that they will be way out of date by then ( in 6 months they may be the "graphics cards" of the asics)
Such is the speed of development of mining hardware.
Yeah this is the ultimate example of diminishing returns, with that said I'm very happy with my chilis they go days and days with out restarting including the Lucko boards(pleasantly surprised). And yes I do miss the 2 I sold you...
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