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Showing 20 of 90 results by Bobs Yerunkle
I have a pre-order from December 2013 that is unfulfilled with no known delivery date.
My refund request has been denied and subsequent contact so far has been ignored.
So, yeah, do not order from Minersource.net
My refund request has been denied and subsequent contact so far has been ignored.
So, yeah, do not order from Minersource.net
Re: [Troubleshoot] ASICMINER Cube : HIGH Clock - 1 Card - 1 Bank (8 chips) - x'd
After almost two days the Cube self reset itself and was displaying the 8 x'd chips.
A couple hours later it reset itself again and the x'd chips where o'd.
A couple hours later it reset itself again and the x'd chips where o'd.
Re: [Troubleshoot] ASICMINER Cube : HIGH Clock - 1 Card - 1 Bank (8 chips) - x'd
I nudged a loose plug last night and killed the power to a couple machines.
It wasn't a clean power off but an on/off/on/off sort of event.
One of those machines was the Cube.
Now the all chips are o-faced at HIGH clock.
Cube has been chugging along for 11 hours.
Not the solution I was hoping for but for now it is better than x'd chips...at least until the next shutdown/restart.
It wasn't a clean power off but an on/off/on/off sort of event.
One of those machines was the Cube.
Now the all chips are o-faced at HIGH clock.
Cube has been chugging along for 11 hours.
Not the solution I was hoping for but for now it is better than x'd chips...at least until the next shutdown/restart.
Re: Server Power Supply Interface Board - for standalone miners and GPU rigs
I have a Dell Z750P that is waiting for 1 of these once the bigger orders have been fulfilled.
Looking forward to seeing what the finished product looks like.
Looking forward to seeing what the finished product looks like.
so how far can i push this machine without modyfing it? i mean i can take some extra cooler and put near but i dont want to mess with the design itself.
currently i made it to 220ghs. is it possible to push it higher?
Please post a screenshot of 220GH/s. currently i made it to 220ghs. is it possible to push it higher?
Re: [Troubleshoot] ASICMINER Cube : HIGH Clock - 1 Card - 1 Bank (8 chips) - x'd
Measured voltages on 2 cards that function fine on High.
Removed and re-soldered the 14.318 MHz oscillator just for kicks.
In retrospect that doesn't make any sense since one oscillator is for both banks.
Good practice though. The smell of flux. The shine of solder. Good times.
Concerned it really was just a power issue I put the Cube back on the Seasonic 860w PSU and High clock behaves as expected for the chips that are not all x'd up, but the issue with the dead bank is still present.
The 700w OCZ700GXSSLI, which technically should have enough oomph, is old and apparently does not quite chop the ketchup... no matter how hard I wish it.
The chips on the mystery bank have come back alive a couple times but it does not seem to be consistently reproducible.
Sometimes a reboot will do it. Other times powering off and powering on the PSU. Most of the time none of that works, times such as right now.
I am tempted to Fonzi the cube but if that worked I'd have to get back into voodoo.
Card 1The 'problem' card's voltages are comparable to these so at least that part of the voltage delivery is fine.
C099-103 | Low 1.063V | High 1.186V
C083-087 | Low 1.062V | High 1.186V
Card 1
C099-103 | Low 1.057V | C099-103 High 1.178V
C083-087 | Low 1.062V | C083-087 High 1.185V
Removed and re-soldered the 14.318 MHz oscillator just for kicks.
In retrospect that doesn't make any sense since one oscillator is for both banks.
Good practice though. The smell of flux. The shine of solder. Good times.
Concerned it really was just a power issue I put the Cube back on the Seasonic 860w PSU and High clock behaves as expected for the chips that are not all x'd up, but the issue with the dead bank is still present.
The 700w OCZ700GXSSLI, which technically should have enough oomph, is old and apparently does not quite chop the ketchup... no matter how hard I wish it.
The chips on the mystery bank have come back alive a couple times but it does not seem to be consistently reproducible.
Sometimes a reboot will do it. Other times powering off and powering on the PSU. Most of the time none of that works, times such as right now.
I am tempted to Fonzi the cube but if that worked I'd have to get back into voodoo.
Yesterday 3 antminers arrived. Immediatly set the frequency to 375, all working OK. Now I've set one to 400. I noticed that the processor is 100% used. Isn't that the main bottleneck?
Marc
If you ssh into the S1 and run top you can stare at the process' cpu usage and pretend it is an aquarium.Marc
But as you mentioned, cgminer definitely appears to be utilizing the majority of the cpu. I have seen mention of this in various Bitmain threads but ATM don't have links queued up.
I would guess that this utilization stays fairly consistent (although excessive) through at least the 350 MHz - 400 MHz range.
You have 3? Lucky.
How about setting one at 350, 375, and 400 and start up the aquariums and telling us what you see?
Re: [Troubleshoot] ASICMINER Cube : HIGH Clock - 1 Card - 1 Bank (8 chips) - x'd
Regarding a voltage underrun, the VRMs on Cube Cards are actually fairly clever. There are two VRMs per card, each sourcing voltage to 8 chips. The regulator uses three resistors and a FET to select the high and low voltages. In one configuration, all three resistors are in the series divider for feedback sampling; in high-speed configuration, the FET shorts around one resistor which changes the division ratio for the sampled output voltage and shifts it up from 1.05V to 1.15V
(More information on Cube VRMs here http://www.gekkoscience.com/webuilds/cube_oc/cube_oc.html
What I would recommend is, with the card running, measure the outputs from the VRMs (across C99-103 and across C83-87) and make sure you have about 1.05V; then switch it to high clock and see if both VRMs changed to 1.15V
If one is still reading 1.05V, measure the voltage present on R25 and R26 and see what they read. If they're both reading about the same (several volts), I'd say the FET itself is bad or not properly connected. First I'd resolder the FET (Q3/Q4) and see if that fixed it.
If one is several volts and one is low, you're not getting the signal to turn on the FET and switch the VRM to high-voltage mode. I'm not sure offhand which logic driver controls this signal but it shouldn't be too hard to trace. In the case of no signal or a bad FET, a workaround should be to remove the R9 or R18 resistor (on mine, it was 1800ohm but I've seen some that had 2100 there) and short across its pads. This would force the VRM to run in high-power mode all the time, so it would be providing more power than is required for "low clock" but would be right for "high clock".
Thanks for the expounding on the voltage under run and the Cube OC write up. Great stuff. (More information on Cube VRMs here http://www.gekkoscience.com/webuilds/cube_oc/cube_oc.html
What I would recommend is, with the card running, measure the outputs from the VRMs (across C99-103 and across C83-87) and make sure you have about 1.05V; then switch it to high clock and see if both VRMs changed to 1.15V
If one is still reading 1.05V, measure the voltage present on R25 and R26 and see what they read. If they're both reading about the same (several volts), I'd say the FET itself is bad or not properly connected. First I'd resolder the FET (Q3/Q4) and see if that fixed it.
If one is several volts and one is low, you're not getting the signal to turn on the FET and switch the VRM to high-voltage mode. I'm not sure offhand which logic driver controls this signal but it shouldn't be too hard to trace. In the case of no signal or a bad FET, a workaround should be to remove the R9 or R18 resistor (on mine, it was 1800ohm but I've seen some that had 2100 there) and short across its pads. This would force the VRM to run in high-power mode all the time, so it would be providing more power than is required for "low clock" but would be right for "high clock".
Testing was done with one card on a 700W PSU.
Both banks appear to be switching the voltage appropriately when the clock is changed.
For both banks:
Low clock ~1.058V
High clock ~1.180V
Is .008V(.78%) or .03V(~2.6%) variance a concern?
I didn't check the other blades for comparison (which was silly
). I will have to take another look tomorrow.
For now I am low clockin' it.
Low clockin' is cooler any how.
Capacitors to check VRM voltage at:
Re: [Troubleshoot] ASICMINER Cube : HIGH Clock - 1 Card - 1 Bank (8 chips) - x'd
I have a cube where one of the mini-blades does this also (OOOOOOOOXXXXXXXX). By restarting the cube through the web interface, I can sometimes get that card to display all O's, however one of the chips will read '999' and stay stuck at that value, and the entire cube will only run at about 10-15% efficiency and the hash rate suffers considerably, regardless of clock setting.
Ever seen that behavior before?
Common issues that can cause erratic behavior are loose heat sinks, unseated cards, and insufficient power. Ever seen that behavior before?
I have not personally seen the behavior you describe but I think I saw something similar in this thread:
[Guide] Dogie's Comprehensive ASICMiner Cube Setup thread (https://bitcointalk.org/index.php?topic=352658.0)
(Print view is easier to digest and search in some cases: https://bitcointalk.org/index.php?action=printpage;topic=352658.0)
Re: [Checking interest] QikFury blank boards + Bitfury chips + Vregulator group buy
"Will you be providing a source for the backplane?"
I've seen M-board kits and complete boards around the forum but have not noticed anything particularly recent.Do you expect to have M-boards available?
Or have a known source for them?
[Troubleshoot] ASICMINER Cube : HIGH Clock - 1 Card - 1 Bank (8 chips) - x'd
Howdy,
Has anyone run into the problem described below and found a solution?
Apart from fixing the issue, it would be great to actually understand what is happening.
Any reference or troubleshooting type urls for this sort of situation would be super and fantastic.
------------------------------------
Item: ASICMINER Cube
Area of Impact: 1 card only
Problem:
Card functions fine at LOW clock however at HIGH clock the second bank of 8 chips are all x'd up (ooooooooxxxxxxxx).
The issue occurs no matter what slot on the backplane the board is installed.
The cube was run with just the 1 card during my testing.
All other boards run at HIGH clock just fine.
------------------------------------
I have seen a similar problem mentioned here: https://bitcointalk.org/index.php?topic=307095.msg3871818#msg3871818
It's 8 all together on the right side. Anything I can do? It's hashing at ~34.1Gh/s now btw.
The possible issue mentioned by sidehack was "voltage underrun in the bank's VRM". These words make sense to me but I do not know what steps to take to remedy it. I have searched for forum and interwebs and have not succeeded in finding a solution.
All my attempts to solve the issue have focused on heat dissapation and PSU power
What I have done so far:
Much obliged.
(Why do I want to understand this issue?....
"Curiosity, I guess. Heck, I'm curious like a cat. I have a couple of friends that call me whiskers." - Harry Caray)
((as portrayed by Will Ferrell [https://www.youtube.com/watch?v=7_0ava_MSSw]))
Has anyone run into the problem described below and found a solution?
Apart from fixing the issue, it would be great to actually understand what is happening.
Any reference or troubleshooting type urls for this sort of situation would be super and fantastic.
------------------------------------
Item: ASICMINER Cube
Area of Impact: 1 card only
Problem:
Card functions fine at LOW clock however at HIGH clock the second bank of 8 chips are all x'd up (ooooooooxxxxxxxx).
The issue occurs no matter what slot on the backplane the board is installed.
The cube was run with just the 1 card during my testing.
All other boards run at HIGH clock just fine.
------------------------------------
I have seen a similar problem mentioned here: https://bitcointalk.org/index.php?topic=307095.msg3871818#msg3871818
Quote
One actually hashed slower in High mode: Low: ~32Gh/s High: 29Gh/s. Now it's running at 33.5Gh/s (now most likely limited by one card that has 8 X's on High)
Is it 8 scattered X, or 8 together? Probably an undervolt condition on that bank's VRM; I can think of a few possible causes most of which I could probably fix for you.The possible issue mentioned by sidehack was "voltage underrun in the bank's VRM". These words make sense to me but I do not know what steps to take to remedy it. I have searched for forum and interwebs and have not succeeded in finding a solution.
All my attempts to solve the issue have focused on heat dissapation and PSU power
What I have done so far:
- Run cube with only the 1 problem blade with an older 700w PSU
- Run cube with only the 1 problem blade with a newer 860w PSU
- Removing and replacing the heat sink
- Inspecting board for visibly bad compenents or solder bridges
- Making a thermal paste sandwich. (Heat sink | paste where chip is | thermal pad |paste where chip is | chip backing.)
src: https://bitcointalk.org/index.php?topic=310752.msg3732017#msg3732017[\li]
Much obliged.
(Why do I want to understand this issue?....
"Curiosity, I guess. Heck, I'm curious like a cat. I have a couple of friends that call me whiskers." - Harry Caray)
((as portrayed by Will Ferrell [https://www.youtube.com/watch?v=7_0ava_MSSw]))
I had this happen overnight as well on one of mine. Temp on mine is 42 & 43 and it is sitting in an aircon server room.
Unit is definitely hashing away on 400 setting (202Gh/s) and pool reporting continual hashing data, so xxxx must be bogus in some way, or at least does not prove unit has stopped.
I will join this club. Unit is definitely hashing away on 400 setting (202Gh/s) and pool reporting continual hashing data, so xxxx must be bogus in some way, or at least does not prove unit has stopped.
Woke this morning to:
xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
Shut it down and let it sit for 5 minutes.
Now back to:
oooooooo oooooooo oooooooo oooooooo
oooooooo oooooooo oooooooo oooooooo
(at least for the moment...)
S1 had been running for >4 days constant.
Re: [Open] Bitfury Bare Chips ~2.6 Gh/s - Reel #2 - 1 day remaining
They group but for Reel #2 is on. The full amount of the funds are sitting in the wallet, and I am just waiting for an invoice from MegaBigPower so I can send payment. Most of this reel was filled by myself and a private buyer because we wanted to have the funds in today, but I am going to be selling off some of the chips I paid for myself. Please wait until the payment has been sent for reel #2 before sending any more funds. I will update this thread as soon as the order is settled with info on how many chips are remaining for sale through the group buy.
Do you know what your pricing will be for the chips you sell from Reel #2?Re: [Checking interest] QikFury blank boards + Bitfury chips + Vregulator group buy
Minimum 4 kits BMOC
A couple additional full kits possible to round things out.
I am going to pretend like I know what I'm talking about here and say:
"Will you be providing a source for the backplane?"
--------------------------------------------------------------------
Public Service Announcement:
Soldering a QFN: http://store.curiousinventor.com/guides/Surface_Mount_Soldering/QFN/
A couple additional full kits possible to round things out.
I am going to pretend like I know what I'm talking about here and say:
"Will you be providing a source for the backplane?"
--------------------------------------------------------------------
Public Service Announcement:
Soldering a QFN: http://store.curiousinventor.com/guides/Surface_Mount_Soldering/QFN/
Anyone know whats the most efficient way to run these? My apartment is running out of available circuits and want to not overload them since the building is old. Any ideas? I could always host a few units at my brothers place as a last resort option.
Prerequisite: Have access to a Kill-A-Watt (http://www.p3international.com/products/p4400.html) or similar device.I have limited power and I checked the circuit breakers for my home and noted the amp rating and then determined what plugs go to what breakers and split up the load.
I suppose you could look at increasing the efficiency of your PSUs.
Running a power supply at 50% load, ie using half of the power rating is generally the most efficient.
However you are often only looking at an increase in efficiency of 3%.
e.g. A 80 Plus Platinum PSU on 110v at 50% load is 92% efficient (or at least so they claim) vs 89% at 100% load.
src: https://en.wikipedia.org/wiki/80_Plus
Another approach is to determine your most efficient GH/joule settings of you miner.
Edit: Yeah, so basically you have as much power available as you have available...not much you can do there.
TLDR Sorry if this was mentioned
I was messing around with a hub trying to figure out available watts, and noticed how finnicky cgminer is with these damn things, I could never get more than 16 running. And adding them too fast would cause a crash. Had the same problem with modminer quads. I found it alot easier to open each device in its own. here is the bat file that i use to open the prompts. Each one also will have a named window. Find the usb settings by doing cgminer.exe -n where --usb bus:device
start cmd /k C:\besr\cgminer.exe --usb 3:50 --bmsc-options 115200:20 -o stratum.btcguild.com:3333 -u reganreckman_a2 -p 123 --bmsc-freq 0781
start cmd /k C:\besr\cgminer.exe --usb 3:51 --bmsc-options 115200:20 -o stratum.btcguild.com:3333 -u reganreckman_a2 -p 123 --bmsc-freq 0781
start cmd /k C:\besr\cgminer.exe --usb 3:52 --bmsc-options 115200:20 -o stratum.btcguild.com:3333 -u reganreckman_a2 -p 123 --bmsc-freq 0781
What operating system are you using? I was messing around with a hub trying to figure out available watts, and noticed how finnicky cgminer is with these damn things, I could never get more than 16 running. And adding them too fast would cause a crash. Had the same problem with modminer quads. I found it alot easier to open each device in its own. here is the bat file that i use to open the prompts. Each one also will have a named window. Find the usb settings by doing cgminer.exe -n where --usb bus:device
start cmd /k C:\besr\cgminer.exe --usb 3:50 --bmsc-options 115200:20 -o stratum.btcguild.com:3333 -u reganreckman_a2 -p 123 --bmsc-freq 0781
start cmd /k C:\besr\cgminer.exe --usb 3:51 --bmsc-options 115200:20 -o stratum.btcguild.com:3333 -u reganreckman_a2 -p 123 --bmsc-freq 0781
start cmd /k C:\besr\cgminer.exe --usb 3:52 --bmsc-options 115200:20 -o stratum.btcguild.com:3333 -u reganreckman_a2 -p 123 --bmsc-freq 0781
Edit: assuming Windows with that command line. Just for kicks...What version?
I have finally realized that even though a small portable screen would be fun...it is an overcomplicated solution to my simple problem.
In the end I decided on a $6 15' vga extension cable.
It will do the job and prevent moving monitors across the abode.
Thanks to everyone for playing.
In the end I decided on a $6 15' vga extension cable.
It will do the job and prevent moving monitors across the abode.
Thanks to everyone for playing.
Nice setup. I am trying to find out if i can overclock them to 425 or 450Mhz. With your setup i have a better cooling then now. Going to find more of these fans 
What values should be set for 425 or 450 MHz ?I mean:
freq_value'
'chip_freq' '425'
option 'timeout'
chip_freq | GH/s/chip | freq_value | timeout
https://bitcointalk.org/index.php?topic=348327.msg3850360#msg3850360