BITMAIN Antminer S1 support and OverClocking thread - page 40.

slasher71

newbie

Activity: 24

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Quote from: infamousdutch on December 12, 2013, 03:36:13 PM

Quote from: slasher71 on December 12, 2013, 10:53:46 AM

Quote from: infamousdutch on December 12, 2013, 12:42:59 AM

Quote from: slasher71 on December 11, 2013, 08:17:01 PM

Hi

Just wondering.... if overclocked, thinking of adding another fan, any idea if it's better to have it sucking or blowing at the other end of the frame?

Slash

I installed a second fan and having it move air in the same direction as the existing fan, i.e. blowing out. The hot air appears to be moving faster and the antminer is stable at room temp.

Thanks did you get much temperature difference ...once the 2nd fan was installed ?

Not really, as my antminer was running cool at 40-45, but the hot air is moving faster away from the antminer. I am seeing a lot of cold air escape one side of the antminer right by the (original) incoming fan. Maybe placing the antminer in a bfl single type of enclosure would force this air to move across the heatsink in a more efficient manner...but with the miner running so cool as-is, I am not sure there's a need for this.

As a test I tried to enclose the miner.... the temps shot straight up.....so not a good idea.. that was with 2 fans 1 at each end

goxed

legendary

Activity: 1946

Merit: 1006

Bitcoin / Crypto mining Hardware.

Quote from: pdawg on December 13, 2013, 03:42:30 AM

At 375 I'm seeing about 193 Gh/s on my unit. it doesn't like 400 at all, too many hardware errors. I am using an Antec 620W 80+ PSU. Should I be using a higher rated PSU?

All my 400MHz / 200GH/s Antminers like a 750W PSU. None of them liked 650W or 600W PSU at 400MHz (some or all x in the status).
All work fine at 375MHz/192GH/s with 600 - 750W PSUs.

The buck regulator is a 30A part. Output voltage is 1.1V. Every 8 chip uses one buck regulator. When drawing > 30A the regulator efficiency dwindles a lot. You can Do the math Wink

my PSUs are 80Plus Gold / Platinum rated.

pdawg

sr. member

Activity: 252

Merit: 250

At 375 I'm seeing about 193 Gh/s on my unit. it doesn't like 400 at all, too many hardware errors. I am using an Antec 620W 80+ PSU. Should I be using a higher rated PSU?

klondike_bar

legendary

Activity: 2128

Merit: 1005

ASIC Wannabe

Quote from: slasher71 on December 12, 2013, 05:51:16 PM

Thanks.. exact same temps here .. it's strange that the temp is different for 1 side, even though the airflow is the same

Sushi told me that the safe temps for overclocking is about 50°C

I would beleive that. At 400MHz, one unit runs at 48/50 and the other at 51/52. The hotter one has a lower hasrate over a 4 day average. I just tuned it down to 4e81 hoping to see how it handles at a slightly lower speed/temp

slasher71

newbie

Activity: 24

Merit: 0

Quote from: infamousdutch on December 12, 2013, 03:36:13 PM

Quote from: slasher71 on December 12, 2013, 10:53:46 AM

Quote from: infamousdutch on December 12, 2013, 12:42:59 AM

Quote from: slasher71 on December 11, 2013, 08:17:01 PM

Hi

Just wondering.... if overclocked, thinking of adding another fan, any idea if it's better to have it sucking or blowing at the other end of the frame?

Slash

I installed a second fan and having it move air in the same direction as the existing fan, i.e. blowing out. The hot air appears to be moving faster and the antminer is stable at room temp.

Thanks did you get much temperature difference ...once the 2nd fan was installed ?

Not really, as my antminer was running cool at 40-45, but the hot air is moving faster away from the antminer. I am seeing a lot of cold air escape one side of the antminer right by the (original) incoming fan. Maybe placing the antminer in a bfl single type of enclosure would force this air to move across the heatsink in a more efficient manner...but with the miner running so cool as-is, I am not sure there's a need for this.

Thanks.. exact same temps here .. it's strange that the temp is different for 1 side, even though the airflow is the same

Sushi told me that the safe temps for overclocking is about 50°C

BadAss.Sx

legendary

Activity: 1526

Merit: 1002

Bulletproof VPS/VPN/Email @ BadAss.Sx

Oh, can't wait for mine

infamousdutch

member

Activity: 105

Merit: 10

Quote from: slasher71 on December 12, 2013, 10:53:46 AM

Quote from: infamousdutch on December 12, 2013, 12:42:59 AM

Quote from: slasher71 on December 11, 2013, 08:17:01 PM

Hi

Just wondering.... if overclocked, thinking of adding another fan, any idea if it's better to have it sucking or blowing at the other end of the frame?

Slash

I installed a second fan and having it move air in the same direction as the existing fan, i.e. blowing out. The hot air appears to be moving faster and the antminer is stable at room temp.

Thanks did you get much temperature difference ...once the 2nd fan was installed ?

Not really, as my antminer was running cool at 40-45, but the hot air is moving faster away from the antminer. I am seeing a lot of cold air escape one side of the antminer right by the (original) incoming fan. Maybe placing the antminer in a bfl single type of enclosure would force this air to move across the heatsink in a more efficient manner...but with the miner running so cool as-is, I am not sure there's a need for this.

slasher71

newbie

Activity: 24

Merit: 0

Quote from: infamousdutch on December 12, 2013, 12:42:59 AM

Quote from: slasher71 on December 11, 2013, 08:17:01 PM

Hi

Just wondering.... if overclocked, thinking of adding another fan, any idea if it's better to have it sucking or blowing at the other end of the frame?

Slash

I installed a second fan and having it move air in the same direction as the existing fan, i.e. blowing out. The hot air appears to be moving faster and the antminer is stable at room temp.

Thanks did you get much temperature difference ...once the 2nd fan was installed ?

slasher71

newbie

Activity: 24

Merit: 0

Quote from: Airwhale on December 12, 2013, 01:49:09 AM

I've managed to place the LAN and the WAN on the same address, and I can't access my miner. Any advice/suggestions on how to reboot/restore the control card back to original default settings?

You will probably have to do a hard reset

Q:How to reset to the default state?
A: There is no reset button in the first batch of AntMiner. If AntMiner has to be reset, please follow these steps.
Step 1: Set your PC’s IP address as 192.168.2.x, and then connect AntMiner with your PC via a network cable.
Step2: Power on AntMiner for a while when it is inthe normal state. The WAN LED should be light.
Step3: With the miner still switched on use a piece of wire between the 2 points for more than 3 seconds. (see image below)

Note you do need to take you time as I found it difficult to access the points as the cables are in the way

http://s30.postimg.org/5pfgg9hr3/reset.png

The Antminer once reset will have a new ip address 192.168.2.99 instead of the default one on the label

Then access the miner via a browser 192.168.2.99 after a couple of minutes

Then start again with the setup

Good luck

alfabitcoin

sr. member

Activity: 476

Merit: 250

I did not overlocked, using corsair cx500 so mybe wont have enough juice...
But I play a lot with cooling solution.
I placed additional silent fan on the opposite side, soaking hot air out. I powering it direct from PDU molex (no need of pwm and pluging into miner power).
Also covered the top of the miner but just half (cover the place where ethernet port and control board is located).

I found also something interesting.
I covered a gap between those 2 heatsink. Just where original fun start to blow cold air in.Noticed that trough that gap air is blowing but does not do anything useful. With blocking it, it force the air blowing trough radiator and nothing go outside.

How much 375mhz use power?
I bought PDU (cx500) before got a miner so now Iam sorry :/

Airwhale

full member

Activity: 221

Merit: 100

annnd, it's in the first post of this thread. Sorry I'm blind, everyone.

Airwhale

full member

Activity: 221

Merit: 100

I've managed to place the LAN and the WAN on the same address, and I can't access my miner. Any advice/suggestions on how to reboot/restore the control card back to original default settings?

AndiDC

newbie

Activity: 28

Merit: 0

Quote from: infamousdutch on December 12, 2013, 12:42:59 AM

Quote from: slasher71 on December 11, 2013, 08:17:01 PM

Hi

Just wondering.... if overclocked, thinking of adding another fan, any idea if it's better to have it sucking or blowing at the other end of the frame?

Slash

I installed a second fan and having it move air in the same direction as the existing fan, i.e. blowing out. The hot air appears to be moving faster and the antminer is stable at room temp.

I put one fan in the front sucking the warm air out just as infamousdutch did. Temps are stable and hashrate is stable and I feel a bit safer with more air flowing through the device. You can use the power connector on the second mining card.

infamousdutch

member

Activity: 105

Merit: 10

Quote from: slasher71 on December 11, 2013, 08:17:01 PM

Hi

Just wondering.... if overclocked, thinking of adding another fan, any idea if it's better to have it sucking or blowing at the other end of the frame?

Slash

I installed a second fan and having it move air in the same direction as the existing fan, i.e. blowing out. The hot air appears to be moving faster and the antminer is stable at room temp.

slasher71

newbie

Activity: 24

Merit: 0

Hi

Just wondering.... if overclocked, thinking of adding another fan, any idea if it's better to have it sucking or blowing at the other end of the frame?

Slash

Maciek

full member

Activity: 254

Merit: 100

Where do I buy those ANTMINER ASICs?

Aexcu

full member

Activity: 130

Merit: 100

Quote from: goxed on December 07, 2013, 09:29:34 PM

yup,
375MHz=

Code:

 4E81

Is this the same value (375MHz) for all of the revisions of AntMiner?

I'm wondering why there has been two different values quoted for 400 MHz:

option 'freq_value' '0780' #400M
option 'freq_value' '4f81' #400M

Is it related to the firmware version you're running OR the actual physical AntMiner board revision?

AndiDC

newbie

Activity: 28

Merit: 0

Quote from: klondike_bar on December 11, 2013, 08:52:37 AM

Quote from: AndiDC on December 11, 2013, 07:55:02 AM

Confirmed, using 375 MHz and 37 timeout is hashing at about 200 Ghash/s
   option 'freq_value' '4e81' #375M
   option 'chip_freq' '375'
   option 'timeout' '37'

interesting that 400MHz gets the same speed then...?

also, i tried the 425MHz code and was getting around 185-190GHash and semingly more errors, so i backed off to 400

Yes, over a few hours the did close to 200 with both frequencies.

klondike_bar

legendary

Activity: 2128

Merit: 1005

ASIC Wannabe

Quote from: AndiDC on December 11, 2013, 07:55:02 AM

Confirmed, using 375 MHz and 37 timeout is hashing at about 200 Ghash/s
option 'freq_value' '4e81' #375M
option 'chip_freq' '375'
option 'timeout' '37'

interesting that 400MHz gets the same speed then...?

also, i tried the 425MHz code and was getting around 185-190GHash and semingly more errors, so i backed off to 400

AndiDC

newbie

Activity: 28

Merit: 0

Confirmed, using 375 MHz and 37 timeout is hashing at about 200 Ghash/s
option 'freq_value' '4e81' #375M
option 'chip_freq' '375'
option 'timeout' '37'

Topic: BITMAIN Antminer S1 support and OverClocking thread - page 40. (Read 144980 times)