The thread's linked in my signature. I'll be updating that chart with more values and stuff, and should have a hex file package and flashing instructions posted today or tomorrow. I'm kinda behind on that.
My browser only displays three lines of anybody's sig. Not sure why. Anyhow, the chart doesn't show temp (@PCB) and I can live with the fans volume db the way that it is. But, I'm operating in a small room that has an undersized A/C system, this unit seems to avg 49C. I'm in South Texas and its gettin' hot in here! Have you seen any reduction in unit temps at the lower frequency's? 
Topic: Bitmain New Miner S7-LN 2.7T @697W discussion (Not official) - page 6. (Read 23316 times)
I've done extensive testing on underclocking and undervolting. Got mine to run 2TH at 20% fan and about 415W. Operating at low frequency won't really cause instability; the problems happen when you choose a frequency that is too high for the voltage (or a voltage too low for chips to operate at any frequency, since all semiconductors have a minimum operating voltage).
awesome, that sounds the ticket, do you happen to remember the frequency you used please?
he has a chart in his thread . let me look for it.
link for you
https://bitcointalksearch.org/topic/m.15257433
thanks
The thread's linked in my signature. I'll be updating that chart with more values and stuff, and should have a hex file package and flashing instructions posted today or tomorrow. I'm kinda behind on that.
cool, NP, I got what I needed from the info there, thanks alot for your work on the thread
The thread's linked in my signature. I'll be updating that chart with more values and stuff, and should have a hex file package and flashing instructions posted today or tomorrow. I'm kinda behind on that.
I've done extensive testing on underclocking and undervolting. Got mine to run 2TH at 20% fan and about 415W. Operating at low frequency won't really cause instability; the problems happen when you choose a frequency that is too high for the voltage (or a voltage too low for chips to operate at any frequency, since all semiconductors have a minimum operating voltage).
awesome, that sounds the ticket, do you happen to remember the frequency you used please?
he has a chart in his thread . let me look for it.
link for you
https://bitcointalksearch.org/topic/m.15257433
I've done extensive testing on underclocking and undervolting. Got mine to run 2TH at 20% fan and about 415W. Operating at low frequency won't really cause instability; the problems happen when you choose a frequency that is too high for the voltage (or a voltage too low for chips to operate at any frequency, since all semiconductors have a minimum operating voltage).
awesome, that sounds the ticket, do you happen to remember the frequency you used please?
I've done extensive testing on underclocking and undervolting. Got mine to run 2TH at 20% fan and about 415W. Operating at low frequency won't really cause instability; the problems happen when you choose a frequency that is too high for the voltage (or a voltage too low for chips to operate at any frequency, since all semiconductors have a minimum operating voltage).
Anyone underclocked one of these?
Why, I hear you say... A mate has bought one to run in his free power studio, but it is still a touch loud at night, any reports of lowest frequency is stable?
They come 600Mhz stock, and can select as low as 100Mhz, but not trying that in case of bricking it, lol
Why, I hear you say... A mate has bought one to run in his free power studio, but it is still a touch loud at night, any reports of lowest frequency is stable?
They come 600Mhz stock, and can select as low as 100Mhz, but not trying that in case of bricking it, lol
This miner doesn't seem easy to get an ROI on considering the halving.
Yes I'm hoping that they drop the price of this soon. None of the Bitmain miners that are for sale seem to have a good chance at ROI
This miner doesn't seem easy to get an ROI on considering the halving.
I received mine last week and I have to say I really like that these are no where near as loud as the S7. For that reason alone I'm thinking of ordering more after the halving.
ordered mine friday night, Lets see how long it takes to get to Sydney Australia..
Keep us updated- thinking about ordering one in Perth
ordered mine friday night, Lets see how long it takes to get to Sydney Australia..
I'm going to wait for Dogies review of the miner before I even consider looking at getting an S7 Lite. I like the form factor of it, and I would like to replace my S5's with these if they are actually decent miners.
Why do you think it will ever be Dogies review of S7 -LN ?
I'm going to wait for Dogies review of the miner before I even consider looking at getting an S7 Lite. I like the form factor of it, and I would like to replace my S5's with these if they are actually decent miners.
Why do you think it will ever be Dogies review of S7 -LN ?
Ordered one last night and it's scheduled for delivery Monday! Pretty good service!
The inside of mine was fairly clean by my standards - nothing caked up, but some dust collected in the ridges on wire bundles and stuff. The fan blades had a thin film of grime on 'em. It had definitely been used, but either in a fairly clean environment or they did a good job blowing it out before shipment.
Well, industrial compressed air systems are excellent for taking care of dust bunnies.
I'm going to wait for Dogies review of the miner before I even consider looking at getting an S7 Lite. I like the form factor of it, and I would like to replace my S5's with these if they are actually decent miners.
The inside of mine was fairly clean by my standards - nothing caked up, but some dust collected in the ridges on wire bundles and stuff. The fan blades had a thin film of grime on 'em. It had definitely been used, but either in a fairly clean environment or they did a good job blowing it out before shipment.
Ahh...little dust don't mean it's used. Maybe this is just how things get delivered to bitmain...
[image clip]
LOL yeah that must be the reason. Just a little dust from delivery. Totally haven't been mining with their psu's for years [image clip]
but seriously, I think that if they had them sitting around in a closet they would have done something else with them...maybe they just had a huge overstock too though.
Houston, TX, United States 06/10/2016 5:00 A.M. Out For Delivery
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