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Topic: BITMAIN Antminer S1 support and OverClocking thread - page 34. (Read 144941 times)

member
Activity: 88
Merit: 10
I think for now Ive hit a sweet spot, Im gonna let hashrate stabilize overnight to verify. But for now, 5e82 seems to be running at a speed between 375 & 400mhz... my HW % gone from .22% @ 375mhz to .59% @ whatever 5e82 is... will see the normalized GH/s in the morning. For now it seems to be hashing between 196-199GH ... which is better than what my unit does @ 400mhz ... 2.75% HW =(

Have you tried 0780 ?

Also wondering '0780' AND '4f81' for 400MHz will give the same result?

Edit: Thank you, Bismarckbkk. I am now trying 400Mhz with 0780 and it seems to squeeze more hashrate. (1-3 GHash for avg)
From 203-204 to 204-207, not sure, just wait for long run avg. Thank you anyway.
full member
Activity: 168
Merit: 100
I think for now Ive hit a sweet spot, Im gonna let hashrate stabilize overnight to verify. But for now, 5e82 seems to be running at a speed between 375 & 400mhz... my HW % gone from .22% @ 375mhz to .59% @ whatever 5e82 is... will see the normalized GH/s in the morning. For now it seems to be hashing between 196-199GH ... which is better than what my unit does @ 400mhz ... 2.75% HW =(

Have you tried 0780 ?
member
Activity: 88
Merit: 10
I think for now Ive hit a sweet spot, Im gonna let hashrate stabilize overnight to verify. But for now, 5e82 seems to be running at a speed between 375 & 400mhz... my HW % gone from .22% @ 375mhz to .59% @ whatever 5e82 is... will see the normalized GH/s in the morning. For now it seems to be hashing between 196-199GH ... which is better than what my unit does @ 400mhz ... 2.75% HW =(

So, should someone with good cooling try 5f82 or 6082 to get better hashrate than 400MHz ?
legendary
Activity: 2450
Merit: 1002
I think for now Ive hit a sweet spot, Im gonna let hashrate stabilize overnight to verify. But for now, 5e82 seems to be running at a speed between 375 & 400mhz... my HW % gone from .22% @ 375mhz to .59% @ whatever 5e82 is... will see the normalized GH/s in the morning. For now it seems to be hashing between 196-199GH ... which is better than what my unit does @ 400mhz ... 2.75% HW =(
legendary
Activity: 2450
Merit: 1002
another update here, so Ive been messing w/ xx82 values ... thus far it seems the 5x82's are the working range.
I have 5082 around 120GH and tried ranges between that and currently sitting at 5a82 which is running in the 172-178GH range. HW rates are identical to known clock speeds so I must be close to 350, just dont know where exactly =P

Further testing, it seems 5d82 is right around 191-195GH ... =)
legendary
Activity: 2450
Merit: 1002
Has anyone discovered how to clock these to 375 ?
nope, scratching my head. also emailed ktzhan, waiting for a reply. Any inputs would be welcome.

Code:
        #option 'freq_value'    '0780'  #400M
        #option 'freq_value'    '4e81'  #375M
        #option 'freq_value'    '4d81'  #350M
        #option 'freq_value'    '4c81'  #325M
        #option 'freq_value'    '0580'  #300M
        #option 'freq_value'    '0981'  #250M
        #option 'freq_value'    '4f02'  #190M

Simple pattern matching suggests that for 375 the last 2 hex digits probably would be 0x..81

So.... by looking at this table, smaller than 25mhz adjustments have to be possible, look at that 190M value.... gotta figure this out.

So after some trial and error the numbers that end in 80 go in 50mhz increments. 0580 -300mhz   0680  -350mhz    0680 -400mhz
hrm... I wonder if its some sorta multi / divider type thing goin on. I wonder what happens if we go to '82' on the end....
legendary
Activity: 2450
Merit: 1002
Curious, anyone know what the '81' is ... ?
Its listed in every freq_value
ie: 4e81, 4f81, 5081 etc...
full member
Activity: 168
Merit: 100
Is there a way to get a temperature log or have the miner report when over a certain temperature?

Also is there a default temperature cutoff?

I already RoI'd so now I'm just looking to pump a few extra btc out of this thing, but I know I have to get it cooler first as it ran 48-49C stock. I also wanted it quieter so I swapped the default fan for 2 Cougar CF-V12HBs running off the molex and that keeps up a constant 46-7C. Its quieter now too, but I know they won't keep up if I OC.

Take the blades out of the frame and put fans directly on top of the heatsinks. You should get 5 - 10 degree temp change.


member
Activity: 81
Merit: 10
Is there a way to get a temperature log or have the miner report when over a certain temperature?

Also is there a default temperature cutoff?

I already RoI'd so now I'm just looking to pump a few extra btc out of this thing, but I know I have to get it cooler first as it ran 48-49C stock. I also wanted it quieter so I swapped the default fan for 2 Cougar CF-V12HBs running off the molex and that keeps up a constant 46-7C. Its quieter now too, but I know they won't keep up if I OC.
member
Activity: 88
Merit: 10
Latest or previous firmware no change hashrate, but previous is little minor load.
Yes timeout 33.
I monitoring the stability of mod, stay tuned


That means you set the ant to 425MHz with 33 timeout, with the hashrate of 220GHash/s, am I right?
Any cons so far?

What is the 'timeout' used for?  Setting a little bit different from the referred timeout in the manual, will it be better or worse?

I mean what if I o/c to 400 MHz and use timeout 33, will this help my ant run faster?
Please suggest any calculation for proper 'timeout'.
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
Well OK.. I even tried to get more watts out of the ide drive cables but no help. Thanks.

that wont help you. find a power supply with a single 12V rail thats got at least 500W minimum on it - kijiji or craigslist is a good place to look

found a 800W, (700W on 12V single rail), FULLY modular (even the 24-pin) Ultra X3 PSU for only $40 BNIB local - 4 PCI-e ports on it for power Smiley

Hey man! You don't need to have ASIC wannabe in your profile anymore!! Just said I'd let you know  Cool

haha, maybe ill change that once the antminer arrives and i pass the fabled 1TH/s mark (should be 1.05TH in fact!)
legendary
Activity: 2450
Merit: 1002
So, I upgraded to the 1226 firmware ... and cgminer is running at like 100% cpu usage..... this normal?
newbie
Activity: 20
Merit: 0
Latest or previous firmware no change hashrate, but previous is little minor load.
Yes timeout 33.
I monitoring the stability of mod, stay tuned
sr. member
Activity: 348
Merit: 251
Well OK.. I even tried to get more watts out of the ide drive cables but no help. Thanks.

that wont help you. find a power supply with a single 12V rail thats got at least 500W minimum on it - kijiji or craigslist is a good place to look

found a 800W, (700W on 12V single rail), FULLY modular (even the 24-pin) Ultra X3 PSU for only $40 BNIB local - 4 PCI-e ports on it for power Smiley

Hey man! You don't need to have ASIC wannabe in your profile anymore!! Just said I'd let you know  Cool
newbie
Activity: 20
Merit: 0
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
Well OK.. I even tried to get more watts out of the ide drive cables but no help. Thanks.

that wont help you. find a power supply with a single 12V rail thats got at least 500W minimum on it - kijiji or craigslist is a good place to look

found a 800W, (700W on 12V single rail), FULLY modular (even the 24-pin) Ultra X3 PSU for only $40 BNIB local - 4 PCI-e ports on it for power Smiley
newbie
Activity: 18
Merit: 0
Well OK.. I even tried to get more watts out of the ide drive cables but no help. Thanks.
sr. member
Activity: 252
Merit: 250
It's Be Quiet 530W... Sorry I lied Grin But anyway it stays very coold and is not blowing any hot air... I think I need to buy a $100 PSU just to try lol.

Two rails and a max output of 420W....I do not think you have enough watts
newbie
Activity: 18
Merit: 0
It's Be Quiet 530W... Sorry I lied Grin But anyway it stays very coold and is not blowing any hot air... I think I need to buy a $100 PSU just to try lol.
sr. member
Activity: 252
Merit: 250

All my ant's average between 0.005% to 0.016% @ 375MHz, if I overclock to 400Mhz then the error rate can hit > 5% but then at 400Mhz that the total number of accepted shares on the pool is far smaller than expected and it is not financially worth it when electricity, etc is factored in.

Ok, I get 0% with 350 but when I try 375 I get like 7-10% HW.... Dunno what to try... My PSU is 550W.

It could be your PSU if it is not producing enough consistent power, what brand and model is it?
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