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Topic: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH - page 245. (Read 451266 times)

legendary
Activity: 1218
Merit: 1001
The current/on going reduction in bitcoin price had me thinking this weekend about our vendors.  Remember the good old days of Bitmain pricing merchandise in bitcoin instead of USD?  Yes there are wild fluctuations in btc price, but if the vendors don't think enough about it to use it as value instead of basing products on USD, why should anyone else? Just something to think about.

it is difficult to price item in something this volatile, but great for transmission. In any case, I don't know what they and coinbase are basing the price of BTC off right now? OKCoin?, btce?

Bitmain's website is currently about $8/btc lower than Coinbase.
legendary
Activity: 1652
Merit: 1067
Christian Antkow
how much value of the S5 coupon ?
If don't mind please send me one coupon, id digitizing
S5 coupons are presently valued at $30.
member
Activity: 108
Merit: 10
how much value of the S5 coupon ?
If don't mind please send me one coupon, id digitizing
legendary
Activity: 3892
Merit: 4331
The current/on going reduction in bitcoin price had me thinking this weekend about our vendors.  Remember the good old days of Bitmain pricing merchandise in bitcoin instead of USD?  Yes there are wild fluctuations in btc price, but if the vendors don't think enough about it to use it as value instead of basing products on USD, why should anyone else? Just something to think about.

it is difficult to price item in something this volatile, but great for transmission. In any case, I don't know what they and coinbase are basing the price of BTC off right now? OKCoin?, btce?
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
Are there any s-5 coupons? I saw something about s-5 coupons can't find it now.

Yes their are S5 coupons for customers who bought early … Bitmain trying to draw in repeat customers after being burned by bitmain lowering the price . Bitmain needs to come up with a different way to reward past customers because the coupons are becoming more of an insult if anything .

I used a few coupons on the s-3's .

I gave a quite few away.

I sold a couple  of s-3 coupons very cheaply.

I would not mind someone tossing 2x  s-5 coupons at my bitmaintech   account .  


my name there  is philipma1957

sent you mine… good luck…. I'm not falling for the coupon game any longer .
 

 thanks I think I want to set one up as a big under clock
legendary
Activity: 1652
Merit: 1067
Christian Antkow
legendary
Activity: 1218
Merit: 1001
The current/on going reduction in bitcoin price had me thinking this weekend about our vendors.  Remember the good old days of Bitmain pricing merchandise in bitcoin instead of USD?  Yes there are wild fluctuations in btc price, but if the vendors don't think enough about it to use it as value instead of basing products on USD, why should anyone else? Just something to think about.
full member
Activity: 226
Merit: 100
Are there any s-5 coupons? I saw something about s-5 coupons can't find it now.

Yes their are S5 coupons for customers who bought early … Bitmain trying to draw in repeat customers after being burned by bitmain lowering the price . Bitmain needs to come up with a different way to reward past customers because the coupons are becoming more of an insult if anything .

are you kidding? $30 coupon is an insult? This is not a S3/S2 coupon rain, they only give numbers equal to batch 1-3 that you ordered at much higher price.

Why would I order more units ? the cycle ends when you no longer repeat business .

home miners don't have enough coin stacked to take 2 or 3 bites at the same product cycle … I order once in a product cycle and thats about it ...
legendary
Activity: 3892
Merit: 4331
Are there any s-5 coupons? I saw something about s-5 coupons can't find it now.

Yes their are S5 coupons for customers who bought early … Bitmain trying to draw in repeat customers after being burned by bitmain lowering the price . Bitmain needs to come up with a different way to reward past customers because the coupons are becoming more of an insult if anything .

are you kidding? $30 coupon is an insult? This is not a S3/S2 coupon rain, they only give numbers equal to batch 1-3 that you ordered at much higher price.
full member
Activity: 226
Merit: 100
Are there any s-5 coupons? I saw something about s-5 coupons can't find it now.

Yes their are S5 coupons for customers who bought early … Bitmain trying to draw in repeat customers after being burned by bitmain lowering the price . Bitmain needs to come up with a different way to reward past customers because the coupons are becoming more of an insult if anything .

I used a few coupons on the s-3's .

I gave a quite few away.

I sold a couple  of s-3 coupons very cheaply.

I would not mind someone tossing 2x  s-5 coupons at my bitmaintech   account .  


my name there  is philipma1957

sent you mine… good luck…. I'm not falling for the coupon game any longer .
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
Are there any s-5 coupons? I saw something about s-5 coupons can't find it now.

Yes their are S5 coupons for customers who bought early … Bitmain trying to draw in repeat customers after being burned by bitmain lowering the price . Bitmain needs to come up with a different way to reward past customers because the coupons are becoming more of an insult if anything .

I used a few coupons on the s-3's .

I gave a quite few away.

I sold a couple  of s-3 coupons very cheaply.

I would not mind someone tossing 2x  s-5 coupons at my bitmaintech   account .  


my name there  is philipma1957
full member
Activity: 226
Merit: 100
Are there any s-5 coupons? I saw something about s-5 coupons can't find it now.

Yes their are S5 coupons for customers who bought early … Bitmain trying to draw in repeat customers after being burned by bitmain lowering the price . Bitmain needs to come up with a different way to reward past customers because the coupons are becoming more of an insult if anything .
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
Are there any s-5 coupons? I saw something about s-5 coupons can't find it now.
legendary
Activity: 1218
Merit: 1003
is this unit more louder then SP20?

No. If SP 20 fan speed is set to 20% and speed 1150GH/s,  it is much quieter than Antminer S5

But you can use the S3-S5 modification https://bitcointalksearch.org/topic/bitmains-refused-from-s9-warranty-buy-at-your-own-risk-914354
member
Activity: 72
Merit: 10
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
is this unit more louder then SP20?

Its subjective but I believe both out the box the SP20 is 'louder' due to the quality of the noise. S5 is loud, but its moving air + a moderate whine noise - identical an S4. Stock SP20 noise is unique, I can't really compare it to anything else.
member
Activity: 85
Merit: 10
is this unit more louder then SP20?
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
undervolting on PSU level is indeed a point I missed before. Are there any DIY? Smiley Or is efficiency directly degraded after modding?

we have a forum member that is well respected working on a plug in 'pot' type device.

plug in a plat psu at 12 volt and 92 %   out comes an 87% 9 volt pcie jack.

since the power should reduce greatly that loss will be okay.

ie .52 drops to .32  / .87 = .36

or you can buy this

http://megawatt.us/     which will go close to 9.5 volts  but is 80%  so .32 / .8 = .4 per gh

this is all theory no one has demonstrated  a s-5 running at 9-10 volts clocked to freq 225 or freq 250 to be stable.
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
If only I could find a meaningful way to make the hardware shut the fuck up though. I thought we got over noisy hardware... I have to turn this off overnight again. I added a fan to the back in a push pull configuration like the S3 and it only dropped the fanspeed one notch, hardly worth the effort. The lowest speed I can stably run this at is 275 and still the fan's too noisy for my liking. The driver code doesn't really do anything to fanspeeds which all seem to be controlled within the device's FPGA itself.

yeah if you don't have a place to hide the noise  it is loud gear.
legendary
Activity: 3892
Merit: 4331
If only I could find a meaningful way to make the hardware shut the fuck up though. I thought we got over noisy hardware... I have to turn this off overnight again. I added a fan to the back in a push pull configuration like the S3 and it only dropped the fanspeed one notch, hardly worth the effort. The lowest speed I can stably run this at is 275 and still the fan's too noisy for my liking. The driver code doesn't really do anything to fanspeeds which all seem to be controlled within the device's FPGA itself.

replacing the stock fan with a single Noctua ($24.5 on Amazon) makes it much less loud and changes the metallic banging sound of the stock fan to whooosh, although temperatures rise to ~60C and you have to hash at 325 mhz(1075 GH). I am waiting for a second fan to add pull and go back to 350mhz or even higher.
http://www.amazon.com/Bearing-NF-F12-iPPC-3000-PWM/dp/B00KFCRATC
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