Topic: [GUIDE] GridSeed GC3355 5 Chip Setup/power/windows/linux/rpi by UnicornHasher - page 15. (Read 365630 times)
April 09, 2014, 03:34:17 PM
Anyone using CGWatcher with bfg or cgminer on the gridseeds? if yes does it work good?
April 09, 2014, 03:08:21 PM
IMO 25 MHz increments work the best, one of my miners runs stable at 925 MHz, but throws HW errors at 856 MHz. The 25 MHz increments have the lowest PLL frequency and other PLL dividers set at 0. I have also found that the cgminer forks does not take in account the hashing time lost when finding an invalid nonce (HW error).
This is very helpful. I was trying to tune my GridSeeds and was puzzling over the results. Sometimes a lower non-25 MHz boundary value would result in more HW errors.
I've reworked my frequencies on 25 MHz boundaries and things seem to be much more predictable.
Thanks for this observation!
Try this, it seems to work well for me. Ofcourse you need a modded unit to go over 1000Mhz with 0 HW errors.
Can someone point me to the page/thread that has the Gridseed 5 chip overclock frequency chart on it?
You know, the one that lists all the different frequencies from 450MHz up to 1400Mhz...
I can't seem to find it, easily..... ;(
Thanks
You know, the one that lists all the different frequencies from 450MHz up to 1400Mhz...
I can't seem to find it, easily..... ;(
Thanks
250, 400, 450, 500, 550, 600, 650, 700, 706, 713, 719, 725, 731, 738, 744, 750,
756, 763, 769, 775, 781, 788, 794, 800, 813, 825, 838, 850, 863, 875, 888, 900,
913, 925, 938, 950, 963, 975, 988, 1000, 1013, 1025, 1038, 1050, 1063, 1075, 1088,
1100, 1113, 1125, 1138, 1150, 1163, 1175, 1188, 1200, 1213, 1225, 1238, 1250, 1263,
1275, 1288, 1300, 1313, 1325, 1338, 1350, 1363, 1375, 1388, 1400.
Is that the one you are looking for?
I've put a notepad in my CPUminer folder right away so that I could have quick access to it hehe
April 09, 2014, 10:42:10 AM
IMO 25 MHz increments work the best, one of my miners runs stable at 925 MHz, but throws HW errors at 856 MHz. The 25 MHz increments have the lowest PLL frequency and other PLL dividers set at 0. I have also found that the cgminer forks does not take in account the hashing time lost when finding an invalid nonce (HW error).
This is very helpful. I was trying to tune my GridSeeds and was puzzling over the results. Sometimes a lower non-25 MHz boundary value would result in more HW errors.
I've reworked my frequencies on 25 MHz boundaries and things seem to be much more predictable.
Thanks for this observation!
April 09, 2014, 07:00:54 AM
Hello! Excuse me, I don't know where to find out - what type of usb cable end goes into the gridseed so that I know what to buy. thanks in advance
Hi
Use an 5 pin mini usb cable to standard usb 2.0
April 09, 2014, 06:58:49 AM
Thanks for the great guide! Finally I've got cgminer to work. I did the plug unplug thing it didn't work so I moved my usb hub to a 2.0 usb port and it started working.
April 09, 2014, 05:33:12 AM
Hello! Excuse me, I don't know where to find out - what type of usb cable end goes into the gridseed so that I know what to buy. thanks in advance
April 09, 2014, 02:41:18 AM
This version supports "Per device frequency setting by serial number ":
https://github.com/girnyau/cgminer-gc3355
https://github.com/girnyau/cgminer-gc3355
this version gives me around 10% lesser hashrate then the orginal cgminer .... I did a test with 20 miners ....
I asked for it ... with PM no answer ... so far ...
Sorry to bother you.
I just used your https://github.com/girnyau/cgminer-gc3355
which was compiled in https://bitcointalksearch.org/topic/m.5763819 for the raspberry.
Somehow I'm getting around 10% less kh with the same setup .... then with the orginal cgminer from andreed from here https://bitcointalksearch.org/topic/m.5539257
... Why does this happen ....?
I just used your https://github.com/girnyau/cgminer-gc3355
which was compiled in https://bitcointalksearch.org/topic/m.5763819 for the raspberry.
Somehow I'm getting around 10% less kh with the same setup .... then with the orginal cgminer from andreed from here https://bitcointalksearch.org/topic/m.5539257
... Why does this happen ....?
Interesting. I started using the girnyau version recently but have not noticed this. Will take a closer look. The two versions are not much different from comparing the source code. The dtbartle version went away from setting static freq's and now support increments of 25. The version you referenced is an earlier build of dtbartle that had static freq.
I have considered forking the current dtbartle version with the per miner freq part of girnyau but am still undecided on doing static freq's or increments of 25. If I could figure out how to code increments of 5 that would be great. If static then there is not much benefit over just using girnyau's fork.
My miners are all over the map supporting freq's of 850 - 900+. Most of them do 863.
Are you basing your results on the pool reported hashrates? Contrary to what that one poster spams all over various threads the hashrate reported by pools are inaccurate and should not be used as a basis of your miners performance.
Edit: I'm not using a Pi. I found it too unreliable and like you mentioned about 10% lower hashrate.
IMO 25 MHz increments work the best, one of my miners runs stable at 925 MHz, but throws HW errors at 856 MHz. The 25 MHz increments have the lowest PLL frequency and other PLL dividers set at 0. I have also found that the cgminer forks does not take in account the hashing time lost when finding an invalid nonce (HW error).
Interesting. Thanks...hadn't actually looked at the methods they are using to increment. When you say "cgminer doesn't take in account the hashing time lost when finding an invalid nonce (HW error)" are you referring to it's display of hashrate? Are you using dtbartle or girnyau?
Here's a 48 hour run on girnyau. Notice that some of the individual chips are not as good as others. I think someone mentioned perhaps coding freq per chip in the future (might have been bfgminer). I'm going to scale down to increments of 25 on girnyau to see what that does. Also some of these HW errors may be due to the internet connection as I only have 1-2 bars on the mobile hotspot it's hooked up to...not the best setup for testing
April 08, 2014, 11:19:36 PM
I had my first 20 grid seeds working on a 49 port hub
and on Monday i got 30 more in
now i can not put more that 25 grid seeds on the 49 port hub if i do then all the grid seeds stop mining.
i have changed the PSU with one that has a 25amp 5v rail but its still the same
now I'm looking for a different usb hub to use.
had anyone got any of the 10 port hubs that come in the grid seed accessory pac they are not using and want to sell ?
When you say "not mining", do you mean that it's hashing, but not submitting any shares? That's the same issue I'm getting, but my limit seems to be around 7-9 Gridseeds.
Which operating system are you guys using? Or are you using controllers?
Raspberry Pi here, as well as a regular desktop. Gonna try the regular desktop again and see how many I can get running this time.
Okay, it doesn't sound like your 49 port hub is the problem. It's probably getting plenty of power and current.
If you are using Windows 7 32 bit, or maybe 64 bit too, try turning OFF FIFO buffers completely. This will allow the comm lines to flow wide open and freely. Set your port speed to 115,200 also if it isn't already set there.
This may help if not correct your problem. It will certainly help increase speed to it's maximum just like it has with mine.
My pods have been mining for over 80 hours since I killed the buffers! No more unexpected crashes or disconnects etc. GONE!
Peace!
April 08, 2014, 11:07:01 PM
I had my first 20 grid seeds working on a 49 port hub
and on Monday i got 30 more in
now i can not put more that 25 grid seeds on the 49 port hub if i do then all the grid seeds stop mining.
i have changed the PSU with one that has a 25amp 5v rail but its still the same
now I'm looking for a different usb hub to use.
had anyone got any of the 10 port hubs that come in the grid seed accessory pac they are not using and want to sell ?
When you say "not mining", do you mean that it's hashing, but not submitting any shares? That's the same issue I'm getting, but my limit seems to be around 7-9 Gridseeds.
Which operating system are you guys using? Or are you using controllers?
Raspberry Pi here, as well as a regular desktop. Gonna try the regular desktop again and see how many I can get running this time.
April 08, 2014, 10:48:51 PM
I had my first 20 grid seeds working on a 49 port hub
and on Monday i got 30 more in
now i can not put more that 25 grid seeds on the 49 port hub if i do then all the grid seeds stop mining.
i have changed the PSU with one that has a 25amp 5v rail but its still the same
now I'm looking for a different usb hub to use.
had anyone got any of the 10 port hubs that come in the grid seed accessory pac they are not using and want to sell ?
When you say "not mining", do you mean that it's hashing, but not submitting any shares? That's the same issue I'm getting, but my limit seems to be around 7-9 Gridseeds.
Which operating system are you guys using? Or are you using controllers?
April 08, 2014, 10:34:39 PM
I had my first 20 grid seeds working on a 49 port hub
and on Monday i got 30 more in
now i can not put more that 25 grid seeds on the 49 port hub if i do then all the grid seeds stop mining.
i have changed the PSU with one that has a 25amp 5v rail but its still the same
now I'm looking for a different usb hub to use.
had anyone got any of the 10 port hubs that come in the grid seed accessory pac they are not using and want to sell ?
When you say "not mining", do you mean that it's hashing, but not submitting any shares? That's the same issue I'm getting, but my limit seems to be around 7-9 Gridseeds.
April 08, 2014, 07:54:15 PM
Anyone can let me know if what I am experiencing is normal
I connected my gridseed and using CGminer 3.7.2 with windows everything in CGminer looks like its working well ( no HW or rejects after 20 min) but the Gridseed fan seems like changing the speed of the fan from slow to fast every few seconds, it is not consistent.
the fan never stop rotating but you clearly hear the noise level go up and down.
is this normal or there is something wrong with my gridseed
Thanks in advance for your help
I connected my gridseed and using CGminer 3.7.2 with windows everything in CGminer looks like its working well ( no HW or rejects after 20 min) but the Gridseed fan seems like changing the speed of the fan from slow to fast every few seconds, it is not consistent.
the fan never stop rotating but you clearly hear the noise level go up and down.
is this normal or there is something wrong with my gridseed
Thanks in advance for your help
Never seen it happening before. What kind of Power supply you use?
April 08, 2014, 07:53:06 PM
I think you will find the HUB dose not have enough power to run 24 gridseeds
what size is the PSU?
This is the Monoprice 24-port USB hub. I don't have it in front of me right now, but I think the power adapter for it is 12V at 4A = 48W. The Gridseeds are powered using 12V at 7A = 84W power bricks. Each one powers 8 Gridseeds each, and the Gridseeds run in scrypt only mode. I purchased the 20x Gridseed kit from Zoomhash, 4 of them.
i'm not sure but i dint think thats enough power on the 5v Line to power all the gridseeds.
I've tried 4 different USB hubs and it looks like the max number of Gridseeds I can get running at the same time is around 7-9. This is using the Raspberry Pi across 3 different distros (Hashra, Scripta, Zoomhash). The hubs were:
4-port USB hub - 5V @ 1 A adapter, all 4 Gridseeds working
10-port USB hub - 5V @ 1 A adapter, 8 Gridseeds working
10-port USB hub - 5V @ 2.5A adapter, 8 Gridseeds working in Scripta, 9 Gridseeds working in Hashra.
Monoprice 24-port USB hub - 5V @ 4A adapter, 7 Gridseeds working in Scripta.
So I don't think it's related to the power.
I've had 20 working for about a month on two 10-port hubs, each with a 5A adapter.
I also had 26 working for a few days on two 13-port hubs, which came with 2.5A (I think) adapters, but I used an ATX PSU to feed 5V to them, so not sure how many amps that was.
I couldn't get the Monoprice hub to work either, at most I think I got 18 Gridseeds on it.
I also found that USB cables matter too. Cheap thin cables wasted me a lot of time with random drop outs and freezes.
I had my first 20 grid seeds working on a 49 port hub
and on Monday i got 30 more in
now i can not put more that 25 grid seeds on the 49 port hub if i do then all the grid seeds stop mining.
i have changed the PSU with one that has a 25amp 5v rail but its still the same
now I'm looking for a different usb hub to use.
had anyone got any of the 10 port hubs that come in the grid seed accessory pac they are not using and want to sell ?
April 08, 2014, 07:42:55 PM
Anyone can let me know if what I am experiencing is normal
I connected my gridseed and using CGminer 3.7.2 with windows everything in CGminer looks like its working well ( no HW or rejects after 20 min) but the Gridseed fan seems like changing the speed of the fan from slow to fast every few seconds, it is not consistent.
the fan never stop rotating but you clearly hear the noise level go up and down.
is this normal or there is something wrong with my gridseed
Thanks in advance for your help
I connected my gridseed and using CGminer 3.7.2 with windows everything in CGminer looks like its working well ( no HW or rejects after 20 min) but the Gridseed fan seems like changing the speed of the fan from slow to fast every few seconds, it is not consistent.
the fan never stop rotating but you clearly hear the noise level go up and down.
is this normal or there is something wrong with my gridseed
Thanks in advance for your help
April 08, 2014, 07:34:46 PM
I think you will find the HUB dose not have enough power to run 24 gridseeds
what size is the PSU?
This is the Monoprice 24-port USB hub. I don't have it in front of me right now, but I think the power adapter for it is 12V at 4A = 48W. The Gridseeds are powered using 12V at 7A = 84W power bricks. Each one powers 8 Gridseeds each, and the Gridseeds run in scrypt only mode. I purchased the 20x Gridseed kit from Zoomhash, 4 of them.
i'm not sure but i dint think thats enough power on the 5v Line to power all the gridseeds.
I've tried 4 different USB hubs and it looks like the max number of Gridseeds I can get running at the same time is around 7-9. This is using the Raspberry Pi across 3 different distros (Hashra, Scripta, Zoomhash). The hubs were:
4-port USB hub - 5V @ 1 A adapter, all 4 Gridseeds working
10-port USB hub - 5V @ 1 A adapter, 8 Gridseeds working
10-port USB hub - 5V @ 2.5A adapter, 8 Gridseeds working in Scripta, 9 Gridseeds working in Hashra.
Monoprice 24-port USB hub - 5V @ 4A adapter, 7 Gridseeds working in Scripta.
So I don't think it's related to the power.
I've had 20 working for about a month on two 10-port hubs, each with a 5A adapter.
I also had 26 working for a few days on two 13-port hubs, which came with 2.5A (I think) adapters, but I used an ATX PSU to feed 5V to them, so not sure how many amps that was.
I couldn't get the Monoprice hub to work either, at most I think I got 18 Gridseeds on it.
I also found that USB cables matter too. Cheap thin cables wasted me a lot of time with random drop outs and freezes.
April 08, 2014, 07:07:38 PM
This version supports "Per device frequency setting by serial number ":
https://github.com/girnyau/cgminer-gc3355
https://github.com/girnyau/cgminer-gc3355
this version gives me around 10% lesser hashrate then the orginal cgminer .... I did a test with 20 miners ....
I asked for it ... with PM no answer ... so far ...
Sorry to bother you.
I just used your https://github.com/girnyau/cgminer-gc3355
which was compiled in https://bitcointalksearch.org/topic/m.5763819 for the raspberry.
Somehow I'm getting around 10% less kh with the same setup .... then with the orginal cgminer from andreed from here https://bitcointalksearch.org/topic/m.5539257
... Why does this happen ....?
I just used your https://github.com/girnyau/cgminer-gc3355
which was compiled in https://bitcointalksearch.org/topic/m.5763819 for the raspberry.
Somehow I'm getting around 10% less kh with the same setup .... then with the orginal cgminer from andreed from here https://bitcointalksearch.org/topic/m.5539257
... Why does this happen ....?
Interesting. I started using the girnyau version recently but have not noticed this. Will take a closer look. The two versions are not much different from comparing the source code. The dtbartle version went away from setting static freq's and now support increments of 25. The version you referenced is an earlier build of dtbartle that had static freq.
I have considered forking the current dtbartle version with the per miner freq part of girnyau but am still undecided on doing static freq's or increments of 25. If I could figure out how to code increments of 5 that would be great. If static then there is not much benefit over just using girnyau's fork.
My miners are all over the map supporting freq's of 850 - 900+. Most of them do 863.
Are you basing your results on the pool reported hashrates? Contrary to what that one poster spams all over various threads the hashrate reported by pools are inaccurate and should not be used as a basis of your miners performance.
Edit: I'm not using a Pi. I found it too unreliable and like you mentioned about 10% lower hashrate.
IMO 25 MHz increments work the best, one of my miners runs stable at 925 MHz, but throws HW errors at 856 MHz. The 25 MHz increments have the lowest PLL frequency and other PLL dividers set at 0. I have also found that the cgminer forks does not take in account the hashing time lost when finding an invalid nonce (HW error).
April 08, 2014, 06:34:08 PM
If anyone is interested.
I have been running my GS5's with FIFO buffers turned OFF for days now without any interruptions or weird failures or crashes! ZERO!
I'm running Windows 7 32 bit version.
This has also helped increase pool side hash rates and profits.
Peace!
I have been running my GS5's with FIFO buffers turned OFF for days now without any interruptions or weird failures or crashes! ZERO!
I'm running Windows 7 32 bit version.
This has also helped increase pool side hash rates and profits.
Peace!
April 08, 2014, 06:23:28 PM
http://i.imgur.com/wbdUUuA.png
I think you will find the HUB dose not have enough power to run 24 gridseeds
what size is the PSU?
I think you will find the HUB dose not have enough power to run 24 gridseeds
what size is the PSU?
This is the Monoprice 24-port USB hub. I don't have it in front of me right now, but I think the power adapter for it is 12V at 4A = 48W. The Gridseeds are powered using 12V at 7A = 84W power bricks. Each one powers 8 Gridseeds each, and the Gridseeds run in scrypt only mode. I purchased the 20x Gridseed kit from Zoomhash, 4 of them.
i'm not sure but i dint think thats enough power on the 5v Line to power all the gridseeds.
I've tried 4 different USB hubs and it looks like the max number of Gridseeds I can get running at the same time is around 7-9. This is using the Raspberry Pi across 3 different distros (Hashra, Scripta, Zoomhash). The hubs were:
4-port USB hub - 5V @ 1 A adapter, all 4 Gridseeds working
10-port USB hub - 5V @ 1 A adapter, 8 Gridseeds working
10-port USB hub - 5V @ 2.5A adapter, 8 Gridseeds working in Scripta, 9 Gridseeds working in Hashra.
Monoprice 24-port USB hub - 5V @ 4A adapter, 7 Gridseeds working in Scripta.
So I don't think it's related to the power.
April 08, 2014, 04:38:42 PM
Anyone know a place to get replacement thermal pads From?
Ebay for sure.
April 08, 2014, 04:37:52 PM
Anyone know a place to get replacement thermal pads From?
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