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Topic: Antminer S3 batch 6 overclocking - page 7. (Read 23082 times)

newbie
Activity: 22
Merit: 0
August 28, 2014, 01:21:36 PM
#8
What kind of concern do you have for damaging the unit? I believe I have batch 5 units, can I expect similar results?
hero member
Activity: 518
Merit: 500
August 26, 2014, 04:11:02 PM
#7
yes, as i mentioned before ( i edited  my prev post ) i allready use all 4 conectors. Tomorow i will try with another s3 . Thank you for your help.
Cand you recomand me a server PSU that you think is best ?

Thanks

Your PSU seems fine, though since I do not know how it sends out its power, I can not be totally sure. If you want to go down the server PSU end, look at the one I used as stated in the first post. Bear in mind that you'll have to "make" the cables for it and will have to do some soldering (not plug and play as the one you have!).
newbie
Activity: 19
Merit: 0
August 26, 2014, 04:06:37 PM
#6
yes, as i mentioned before ( i edited  my prev post ) i allready use all 4 conectors. Tomorow i will try with another s3 . Thank you for your help.
Cand you recomand me a server PSU that you think is best ?

Thanks
hero member
Activity: 518
Merit: 500
August 26, 2014, 04:02:55 PM
#5
I use http://www.thermaltake.com/products-model.aspx?id=C_00001966 . Do you think that my PSU is the problem ?
What do you recomand ?


That looks like its capable of running 2 slightly underclocked S3's, so should not be an issue running one. However, I do not know enough about how these desktop PSU's pump out their power. I'd suggest you use all 4 PCIe connection if you have not been doing so. If you still get such high errors, then it may be just a case of your unit not being able to overclock well.
newbie
Activity: 19
Merit: 0
August 26, 2014, 03:56:13 PM
#4
I use http://www.thermaltake.com/products-model.aspx?id=C_00001966 . I inserted all 4 connectors to my S3 . Do you think that my PSU is the problem ?
What do you recomand ?
hero member
Activity: 518
Merit: 500
August 26, 2014, 03:43:48 PM
#3
nice freqs pekatete.

i tried 218.75 with 441gh/s avg and 0 HW ; 237.5 with 477gh/s avg amd 0 HW. When i tried 250 freq , i got allot off HW errors, about 200 in 5 mins. I modified back to 237.5 and rebooted.
Can somebody tell me why i got so manny HW errors?

Thanks

How are you powering your S3, i.e what is your PSU's power rating and how are you connecting it to the S3? Note that though I used just 2 PCIe connections for my test, I was using a server PSU that has 3 12V rails each pumping out at least 15A, so for my case, each +ve line in each PCIe plug can deliver 12V @ 7.5 Amps.
newbie
Activity: 19
Merit: 0
August 26, 2014, 03:35:26 PM
#2
nice freqs pekatete.

i tried 218.75 with 441gh/s avg and 0 HW ; 237.5 with 477gh/s avg amd 0 HW. When i tried 250 freq , i got allot off HW errors, about 200 in 5 mins. I modified back to 237.5 and rebooted.
Can somebody tell me why i got so manny HW errors?


Thanks
   
hero member
Activity: 518
Merit: 500
August 21, 2014, 07:14:47 AM
#1
I have been intrigued as to how far the S3 can be pushed and have been doing some tests over the last few days, running each chip_freq setting for approximately a day to get a more representative average result for that specific frequency.
I did this with a batch 6 S3 powered by a Dell PS-2521-1D server PSU rated at 550 watts connected via 2 PCIe connectors.

I carried out the testing over 5 days on 5 different sppeds starting with the stock speed of 218.75, and here's a summary of the settings and results.

chip_freq
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