BITMAIN Antminer S3 support and OverClocking thread

[PantminerS7]

Would you change anything on this? Currently 250M @ 0800V (Wasn't sure what to put, so I gave it 'enough'), 503GH/s avg. The PSU is a 650W Silverpower.

Thanks for any help!

[notlist3d]

Would you change anything on this? Currently 250M @ 0800V (Wasn't sure what to put, so I gave it 'enough'), 503GH/s avg. The PSU is a 650W Silverpower.

Thanks for any help!

With S3's I had each had a personality of it's own.  Some operated better then others, some liked different settings.   I had everything from batch 1 S3 to S3+'s though so there is some reason for that.

If you have 500+ avg and miner looks to be mining with low hw errors or issues... I would not mess with it. Why change what is working good?

[PantminerS7]

snip

With S3's I had each had a personality of it's own.  Some operated better then others, some liked different settings.   I had everything from batch 1 S3 to S3+'s though so there is some reason for that.

If you have 500+ avg and miner looks to be mining with low hw errors or issues... I would not mess with it. Why change what is working good?

Those are my thoughts exactly, which is why I'm asking for help before touching anything . If I could get it running at a higher GH/s, I'd be sure to test out my options, though.

[Real-Duke]

Have had several S3+ miners but only one of them was be able to run at frequency 250 with ~500Ghs stable and low HW errors.
Power consumption at the wall was about 400W

[bartdp]

Does someone has an idea why my 3 S3's fallback to about 300 GH/s after a while ?

I just cleaned them ( cooling plates and ventilators ) and even reapplied thermal paste to one of the 3 :
 
http://home.scarlet.be/~tse07969/1.JPG
http://home.scarlet.be/~tse07969/2.JPG
http://home.scarlet.be/~tse07969/3.JPG

[coopsindahouse]

Does someone has an idea why my 3 S3's fallback to about 300 GH/s after a while ?

I just cleaned them ( cooling plates and ventilators ) and even reapplied thermal paste to one of the 3 :
 
http://home.scarlet.be/~tse07969/1.JPG
http://home.scarlet.be/~tse07969/2.JPG
http://home.scarlet.be/~tse07969/3.JPG

Seems a bit odd try resetting the firmware (if on latest try going a couple versions)

Tell me if it works or not

[aarons6]

upgrading the firmware on these was very risky as there is no sd card option for backup.

it was well documented that some batches of s3s never hit the advertised speed..
i do also remember on mine, i had one that was actually faster if i went down 1 or 2 on the clock speed.. you may try 218.75.