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Topic: BITMAIN Antminer S1 support and OverClocking thread - page 32. (Read 144981 times)

newbie
Activity: 24
Merit: 0
This thread is for support related discussions of the BITMAIN Antminer S2 hashing device

How to overclock your miner to 400MHz / 205GH/s. My suggestion is to clock them at 375. 400 is a bit too harsh on the voltage regulator.
All clock speeds including 375MHz work on both revision of boards.

The miner will draw 500 - 525Watts at the wall (110V mains) after this setting

....

Please donate if it works for you: 1FrW5ka9CRVWdL9EM4Jut9eHWU1a1biyy5

Hi,

Is there a special Btmain Antminer U1 support thread for Wndows users?

Thanks

The operating system on your pc is irrelevant to the antminer as you access it via a browser or ssh

He's talking about the U1 (USB miner).

ooops sorry
legendary
Activity: 1726
Merit: 1018
I haven't managed to control the fan yet, but for those who don't care about noise and want better cooling you can just remove the blue wire from the fan connector (or cut it, if you're lazy). Just use a small precision flat blade screwdriver and push in the little locking tab at the back of the 4 pin fan connector. In the absence of a PWM signal the fan just spins up to full speed, which the Antminer is reporting as 3900RPM. Doing that dropped my temps from 47 to 35 at 400MHz.

Thanks for this!  Lowered my temps 10 degrees with just this.
legendary
Activity: 1726
Merit: 1018
This thread is for support related discussions of the BITMAIN Antminer S2 hashing device

How to overclock your miner to 400MHz / 205GH/s. My suggestion is to clock them at 375. 400 is a bit too harsh on the voltage regulator.
All clock speeds including 375MHz work on both revision of boards.

The miner will draw 500 - 525Watts at the wall (110V mains) after this setting

....

Please donate if it works for you: 1FrW5ka9CRVWdL9EM4Jut9eHWU1a1biyy5

Hi,

Is there a special Btmain Antminer U1 support thread for Wndows users?

Thanks

The operating system on your pc is irrelevant to the antminer as you access it via a browser or ssh

He's talking about the U1 (USB miner).
newbie
Activity: 24
Merit: 0
This thread is for support related discussions of the BITMAIN Antminer S2 hashing device

How to overclock your miner to 400MHz / 205GH/s. My suggestion is to clock them at 375. 400 is a bit too harsh on the voltage regulator.
All clock speeds including 375MHz work on both revision of boards.

The miner will draw 500 - 525Watts at the wall (110V mains) after this setting

....

Please donate if it works for you: 1FrW5ka9CRVWdL9EM4Jut9eHWU1a1biyy5

Hi,

Is there a special Btmain Antminer U1 support thread for Wndows users?

Thanks

The operating system on your pc is irrelevant to the antminer as you access it via a browser or ssh
newbie
Activity: 24
Merit: 0
Can anyone tell me the timeouts for these frequencies for Build date 2013/11/18
  
375     MHz    '4E81'   '38'
387.5   MHz    '5E85'   ''
393.75 MHz    '5F05'   ''
400     MHz    '4F81'   '35'  
406.25 MHz    '6005'   ''
412.5  MHz     '6085'   ''
newbie
Activity: 34
Merit: 0
This thread is for support related discussions of the BITMAIN Antminer S2 hashing device

How to overclock your miner to 400MHz / 205GH/s. My suggestion is to clock them at 375. 400 is a bit too harsh on the voltage regulator.
All clock speeds including 375MHz work on both revision of boards.

The miner will draw 500 - 525Watts at the wall (110V mains) after this setting

....

Please donate if it works for you: 1FrW5ka9CRVWdL9EM4Jut9eHWU1a1biyy5

Hi,

Is there a special Btmain Antminer U1 support thread for Wndows users?

Thanks
hero member
Activity: 616
Merit: 500
I got Satoshi's avatar!
Has anyone ran across an Ant that just isn't happy at 400? I have 3 others running at 400 with 200gh and low HW errors but one is just not a happy camper. Lowered it it to 375 and it's running the same speed it was at 400 around 190 now with very low HW errors. Just curious if anyone else has come across a mule as well.

My miner didn't like 400 at all, way to many errors.  At 375, i'm getting 400 numbers.
Yeah, same here, but I'm sure it's down to the power supply and cooling... the stock fan seems to be happy to keep the chips around 45deg, but they run much better at lower temps.
sr. member
Activity: 351
Merit: 250
Did you remove the # signs from in front of the 400 values and place them in front of the 350 values?
hero member
Activity: 774
Merit: 500
Lazy Lurker Reads Alot
Well i see the miner doing avg 175 Gh
So i thought why does it go so slow
Read the whole thing about changing the file in the miner
When i looked at that given file i see that it already has the numbers given
Still the boxes do not go faster then around 175 Gh on average
Not even close to 190 at all, anyone has a clue why they run so slow ?!?!?
Both boxes do run about 45 to 48 c with the fans doing 1800 rpm
hero member
Activity: 818
Merit: 508
Has anyone ran across an Ant that just isn't happy at 400? I have 3 others running at 400 with 200gh and low HW errors but one is just not a happy camper. Lowered it it to 375 and it's running the same speed it was at 400 around 190 now with very low HW errors. Just curious if anyone else has come across a mule as well.

My miner didn't like 400 at all, way to many errors.  At 375, i'm getting 400 numbers.
sr. member
Activity: 351
Merit: 250
Has anyone ran across an Ant that just isn't happy at 400? I have 3 others running at 400 with 200gh and low HW errors but one is just not a happy camper. Lowered it it to 375 and it's running the same speed it was at 400 around 190 now with very low HW errors. Just curious if anyone else has come across a mule as well.
hero member
Activity: 818
Merit: 508
Good Afternoon,

I'm in now looking at over clocking my S1.  Only problem is, I'm not completely familiar with the process.  I do have extra fans for my miner, so I can keep the heat down.  One question I have, in the op, the build dates of the machines, does that matter?  I ask because I got my machine much later.  I know you have to SSH your way into the miner, what are the proper command props?  Is it a cut and paste, or more?  Thanks for your assistance in advance.


the instructions are available, but basically:
-SSH in using port 22, u/p is root/root
- 'vi /etc/config/asic-freq' enters the editor for the file
- 'i' key enters edit mode - go ahead and make the changes
-'ESC' returns to view mode
- ':wq!' writes the file and quits the editor
-reboot

I find that 400MHz gives around 201-203GH and 387.5MHz gives about 196-198GH


Thanks Klondike_Bar.

I figured it out yesterday.  I'm been average 190 to 200. 
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
Good Afternoon,

I'm in now looking at over clocking my S1.  Only problem is, I'm not completely familiar with the process.  I do have extra fans for my miner, so I can keep the heat down.  One question I have, in the op, the build dates of the machines, does that matter?  I ask because I got my machine much later.  I know you have to SSH your way into the miner, what are the proper command props?  Is it a cut and paste, or more?  Thanks for your assistance in advance.


the instructions are available, but basically:
-SSH in using port 22, u/p is root/root
- 'vi /etc/config/asic-freq' enters the editor for the file
- 'i' key enters edit mode - go ahead and make the changes
-'ESC' returns to view mode
- ':wq!' writes the file and quits the editor
-reboot

I find that 400MHz gives around 201-203GH and 387.5MHz gives about 196-198GH
sr. member
Activity: 467
Merit: 250
i got a nice spike Smiley)

hero member
Activity: 818
Merit: 508
I'm now overclocking.  I'm in that 190G to 195G range.  Good learning curve.  Now I'm ready for my next machine.

hero member
Activity: 818
Merit: 508
Good Afternoon,

I'm in now looking at over clocking my S1.  Only problem is, I'm not completely familiar with the process.  I do have extra fans for my miner, so I can keep the heat down.  One question I have, in the op, the build dates of the machines, does that matter?  I ask because I got my machine much later.  I know you have to SSH your way into the miner, what are the proper command props?  Is it a cut and paste, or more?  Thanks for your assistance in advance.
full member
Activity: 130
Merit: 100
Future: We are designing a type of new control board based on ARM A8. When it is ready, the chain number can be up to 16, and the chip number can be up to 256 per chain.


Could this imply that they are actually (possibly) building a board which has 256 ASICs compared to the existing 32? That'd be 8x more, meaning 720 GH/s per blade. 16 blades would thus equal to 11.520 TH/s.

Maybe they have a 1.44 TH/s AntMiner S2 (2 blades rack model) under works?
sr. member
Activity: 252
Merit: 250
In short, 'AntMiner U1' in AntMiner U1 user guide and 'AntMiner S1' in AntMiner FAQ
have the same frequency and the frequency hex such as

'4D81' for 350MHz, '4F81' for 400MHz, '5081' for 425MHz, and so on.

https://github.com/AntMiner/AntGen1/tree/master/manual

Focusing for the Frequency and Frequecy HEX, they share the same values. (I think the calculation/equation should be the same)
So, if I find some specific MHz for U1, I assume that I should be able to apply it to S1,too.

As arguments to the cgminer executable, yes.

But the entries in the asic-freq are used in the function in the /etc/init.d/cgminer script and modified before they get passed to the cgminer executable.

member
Activity: 88
Merit: 10
In short, 'AntMiner U1' in AntMiner U1 user guide and 'AntMiner S1' in AntMiner FAQ
have the same frequency and the frequency hex such as

'4D81' for 350MHz, '4F81' for 400MHz, '5081' for 425MHz, and so on.

https://github.com/AntMiner/AntGen1/tree/master/manual

Focusing for the Frequency and Frequecy HEX, they share the same values. (I think the calculation/equation should be the same)
So, if I find some specific MHz for U1, I assume that I should be able to apply it to S1,too.
sr. member
Activity: 252
Merit: 250
Here I come with my conclusion.

According to 'AntMiner U1 Manual' (I assumed that it's also for AntMiner S1 too)

...
To play safe, 400 MHz is the best one (for me for now), with relatively low HW error and stated in the manual+FAQ. =)

Are you taking into account the calculation that is made in /etc/init.d/cgminer which occurs between the setting in the asic-freq file and the inclusion of the values used in the --bitmain-options which would be similar to those in the AntMiner U1 Manual. The calculation is

    #TO=$(( 12690 / $_cf ))
    #_cf = 25 *((($_regv >> 7)&0x7f) + 1)/(((($_regv >> 2) & 0x1f) + 1) * (0x1 << (&_regv & 0x3)))

Where

    _regv freq_value
    _cf  chip_freq
    _TO  timeout

and included in the cgminer command string

 --bitmain-options 115200:32:8:$_T0:$_cf:$_regv
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