Antminer S3 batch 6 overclocking

[virtualFudge]

Thank you.

https://bitcointalk.org/index.php?topic=699064.msg8370071#msg8370071

That's the instructions just in case anyone else has the same question. Took me a while to find.

Now for some more probably already answered questions.

Do I have the firmware you mentioned in the beginning of this thread called cgminer 4.6.1?

Has anyone made a table of power usage at different frequencies?

[1715222904]

1715222904

[pekatete]

Thank you.

https://bitcointalk.org/index.php?topic=699064.msg8370071#msg8370071

That's the instructions just in case anyone else has the same question. Took me a while to find.

Now for some more probably already answered questions.

Do I have the firmware you mentioned in the beginning of this thread called cgminer 4.6.1?

Has anyone made a table of power usage at different frequencies?

Yep, that is the post.
cgminer 4.6.1 does NOT come with the firmware so you'll need to follow the instructions to install it.
There are tables of power usage at different frequencies floating around, but again the best reference is the S3 thread.

PS. I'll add the info in the link about adding frequecies to the dropdown to the OP at a later time.

[virtualFudge]

Alright. One final question before I go to bed. I've been messing with overclocking my miner all day, and I've found that running it at 250M delivers expected results. It runs at an average of 505 Ghash/s with low temps and low hardware errors. As soon as I kick it up to 256.25M, my temps stay down and it shows all 'o's for the status, but I get tons of hardware errors and low hash rates. I''m getting half as many hardware errors as accepted shares and about 480 Ghash/s. Why is this?
By the way, thanks for helping out this noob so much. It's much appreciated.

[pekatete]

Alright. One final question before I go to bed. I've been messing with overclocking my miner all day, and I've found that running it at 250M delivers expected results. It runs at an average of 505 Ghash/s with low temps and low hardware errors. As soon as I kick it up to 256.25M, my temps stay down and it shows all 'o's for the status, but I get tons of hardware errors and low hash rates. I''m getting half as many hardware errors as accepted shares and about 480 Ghash/s. Why is this?
By the way, thanks for helping out this noob so much. It's much appreciated.

I have days when I notice the HW numbers spike to astronomical figures on the OC'd S3's, but a reboot via SSH always "settles" the unit down. Having said that, it may be one of several things, and I could be wrong but I'll offer a few:
1. You are not powering your S3 properly (I used only 2 connectors, but made sure the cables can adequately juice the unit)
2. If it is an earlier S3, you may need to re-apply the paste (bitmain did a very amateur job!) to enable your unit handle higher temps better.
3. Your unit's freq sweet spot is 250M (some units are less others more ... luck of the draw!).
On a personal level, if it hashes at 505GH/s with acceptable HW errors, I'd be over the moon.

[luckypyrate]

FYI the link for cgminer is no longer valid.

wget http://ck.kolivas.org/apps/cgminer/antminer/s3/4.6.1-141020/cgminer will get you there

[pekatete]

FYI the link for cgminer is no longer valid.

wget http://ck.kolivas.org/apps/cgminer/antminer/s3/4.6.1-141020/cgminer will get you there

Thanks for mentioning that the link to 4.6.0 is no longer available (and I will add a note to that), however, just below that link in the OP is the link to cgminer 4.6.1 (including the similar process of installing it).

[luckypyrate]

FYI the link for cgminer is no longer valid.

wget http://ck.kolivas.org/apps/cgminer/antminer/s3/4.6.1-141020/cgminer will get you there

Thanks for mentioning that the link to 4.6.0 is no longer available (and I will add a note to that), however, just below that link in the OP is the link to cgminer 4.6.1 (including the similar process of installing it).

doh!  *grabs more coffee*  sorry.

[pekatete]

^^ No worries.
Updated OP with link to adding frequencies to latest firmaware (Aug 2014) and highlighting the deprecation of cgminer 4.6.0

[daddyfatsax]

^^ No worries.
Updated OP with link to adding frequencies to latest firmaware (Aug 2014) and highlighting the deprecation of cgminer 4.6.0

Looks like CK changed the file again, it should be:
wget http://ck.kolivas.org/apps/cgminer/antminer/s3/4.6.1-141020/cgminer

[luckypyrate]

^^ No worries.
Updated OP with link to adding frequencies to latest firmaware (Aug 2014) and highlighting the deprecation of cgminer 4.6.0

Looks like CK changed the file again, it should be:
wget http://ck.kolivas.org/apps/cgminer/antminer/s3/4.6.1-141020/cgminer

ah so I wasn't crazy!  Whew!

[daddyfatsax]

^^ No worries.
Updated OP with link to adding frequencies to latest firmaware (Aug 2014) and highlighting the deprecation of cgminer 4.6.0

Looks like CK changed the file again, it should be:
wget http://ck.kolivas.org/apps/cgminer/antminer/s3/4.6.1-141020/cgminer

ah so I wasn't crazy!  Whew!

Just saw you already posted that link. Was not paying attention.

[pekatete]

^^ No worries.
Updated OP with link to adding frequencies to latest firmaware (Aug 2014) and highlighting the deprecation of cgminer 4.6.0

Looks like CK changed the file again, it should be:
wget http://ck.kolivas.org/apps/cgminer/antminer/s3/4.6.1-141020/cgminer

Updated OP, though both versions are still available unlike version 4.6.0 flat.

[daddyfatsax]

Even with the new cgminer file, my units are doing a little worse than with the previous one. I am guessing I am losing around 10-14 GH/s per device, which is not bad but when you have 11 of them it makes a slight difference.

[pekatete]

Even with the new cgminer file, my units are doing a little worse than with the previous one. I am guessing I am losing around 10-14 GH/s per device, which is not bad but when you have 11 of them it makes a slight difference.

Do you have the latest firmware on them? i had exactly the same experience with my batch 6 units and reverted to the stock cgminer, however (again as is documented in this thread), when I updated to the latest firmware, which I had to do when upgrading my S1's, I get the same result as the stock, or slightly better, but with the security flaws plugged.

[daddyfatsax]

Even with the new cgminer file, my units are doing a little worse than with the previous one. I am guessing I am losing around 10-14 GH/s per device, which is not bad but when you have 11 of them it makes a slight difference.

Do you have the latest firmware on them? i had exactly the same experience with my batch 6 units and reverted to the stock cgminer, however (again as is documented in this thread), when I updated to the latest firmware, which I had to do when upgrading my S1's, I get the same result as the stock, or slightly better, but with the security flaws plugged.

Yeah I have the latest firmware, it is dated 8/26/2014. My issue is probably the 5 batch 1 miners I have, even though some of my batch 5 units are a little slow as well.

[pekatete]

Even with the new cgminer file, my units are doing a little worse than with the previous one. I am guessing I am losing around 10-14 GH/s per device, which is not bad but when you have 11 of them it makes a slight difference.

Do you have the latest firmware on them? i had exactly the same experience with my batch 6 units and reverted to the stock cgminer, however (again as is documented in this thread), when I updated to the latest firmware, which I had to do when upgrading my S1's, I get the same result as the stock, or slightly better, but with the security flaws plugged.

Yeah I have the latest firmware, it is dated 8/26/2014. My issue is probably the 5 batch 1 miners I have, even though some of my batch 5 units are a little slow as well.

Yep, the earlier batches do not seem to be up to it. I suspect it is due to their poor temp handling and suggested to someone to re-do their heat paste; Though he had some good results using a conductive compound, he re-applied using a non conductive paste and has not reported their results. With several units .... that would be a day's work! Worth it? Not sure.

[daddyfatsax]

Even with the new cgminer file, my units are doing a little worse than with the previous one. I am guessing I am losing around 10-14 GH/s per device, which is not bad but when you have 11 of them it makes a slight difference.

Do you have the latest firmware on them? i had exactly the same experience with my batch 6 units and reverted to the stock cgminer, however (again as is documented in this thread), when I updated to the latest firmware, which I had to do when upgrading my S1's, I get the same result as the stock, or slightly better, but with the security flaws plugged.

Yeah I have the latest firmware, it is dated 8/26/2014. My issue is probably the 5 batch 1 miners I have, even though some of my batch 5 units are a little slow as well.

Yep, the earlier batches do not seem to be up to it. I suspect it is due to their poor temp handling and suggested to someone to re-do their heat paste; Though he had some good results using a conductive compound, he re-applied using a non conductive paste and has not reported their results. With several units .... that would be a day's work! Worth it? Not sure.

I replaced all the thermal paste on 1 of my batch 1 units and that fixed all of the X's and other issues. Not really worth it to start taking apart the rest.

[cenicsoft]

Is upgrading to the latest CGminer for later batches of S3, including S3+ and upgraded S1's recommended?

Running the latest firmware, I upgraded all of the miners to CGMiner 4.6.1 and hashing restarts every few minutes. Overclocking is minimal - 237.5 to 243.75 with temps between 39 and 41 degrees.  The miner itself doesn't restart, only the hashing.

I had to revert back to the CGMiner included with the firmware and they hash continuously without trouble.

[pekatete]

Is upgrading to the latest CGminer for later batches of S3, including S3+ and upgraded S1's recommended?

Running the latest firmware, I upgraded all of the miners to CGMiner 4.6.1 and hashing restarts every few minutes. Overclocking is minimal - 237.5 to 243.75 with temps between 39 and 41 degrees.  The miner itself doesn't restart, only the hashing.

I had to revert back to the CGMiner included with the firmware and they hash continuously without trouble.

I have not experienced the restarts that have been reported in several threads after upgrading to the earlier version of cgminer 4.6.1
Could you try and get the exact version of cgminer that restarts? If you look at the OP, there are two versions of 4.6.1

[luckypyrate]

Okay well I have upgraded the cgminer on my S3's and will be working on upgrading my S1s to 4.2.0 while I wait for the S3's to settle down to decide if I want to try and push the freq.