hhumaidan
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June 10, 2016, 10:40:20 AM |
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I think you guys missed the power consumption of batch 1 1375 and batch 2 1275. If you calculate it u will see that B1 and B2 are equivalent.
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Finksy
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June 10, 2016, 01:21:25 PM |
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I think you guys missed the power consumption of batch 1 1375 and batch 2 1275. If you calculate it u will see that B1 and B2 are equivalent. Efficiency is the same, but price per TH/s is higher on the later shipping batch which is a step backwards.
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bspurloc
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June 10, 2016, 03:19:03 PM |
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isnt it lower power cuz its lower frequency? I think you guys missed the power consumption of batch 1 1375 and batch 2 1275. If you calculate it u will see that B1 and B2 are equivalent.
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suchmoon
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June 10, 2016, 03:21:37 PM |
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I think you guys missed the power consumption of batch 1 1375 and batch 2 1275. If you calculate it u will see that B1 and B2 are equivalent. That's correct but I don't think anybody expected the efficiency to be different. The price should have been lower considering later delivery. All other things being equal Batch 1 owners will have 8 extra days of more profitable mining. It will be interesting to see how it compares in real life though when things start getting delivered, what's the next diff jump, etc.
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RichBC
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June 10, 2016, 03:22:16 PM |
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I think you guys missed the power consumption of batch 1 1375 and batch 2 1275. If you calculate it u will see that B1 and B2 are equivalent. You would expect the efficiency to be better so long as they have reduced the core voltage, which they may or may not have done? Or they may just have done som simple maths on the change? Rich
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alh
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June 10, 2016, 03:40:59 PM |
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I think you guys missed the power consumption of batch 1 1375 and batch 2 1275. If you calculate it u will see that B1 and B2 are equivalent. You would expect the efficiency to be better so long as they have reduced the core voltage, which they may or may not have done? Or they may just have done som simple maths on the change? Rich My understanding is that B2 is essentially a "clock frequency reduced" B1. Maybe it's more than that, but I don't expect so, hence no efficiency change.
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hazenyc
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June 10, 2016, 03:48:17 PM |
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I think you guys missed the power consumption of batch 1 1375 and batch 2 1275. If you calculate it u will see that B1 and B2 are equivalent. Efficiency is the same, but price per TH/s is higher on the later shipping batch which is a step backwards. supply, meet demand.
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Threader
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June 10, 2016, 04:35:14 PM |
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Unless price of BTC doubles in short order after halving ( http://www.bitcoinblockhalf.com/ ) of Block rewards early adopters are screwing themselves paying these initial asking prices for S9. Curious to see what the S9 will be selling for in August.
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bspurloc
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June 10, 2016, 04:39:18 PM |
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at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt? Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper grr but 1300 only has 6 vga powers... sigh
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klondike_bar
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ASIC Wannabe
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June 10, 2016, 04:42:25 PM |
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at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt? Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper you'd be pushing it pretty hard. easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W
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AriesIV10
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Mine for a Bit
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June 10, 2016, 04:43:46 PM |
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It is all speculation, but you do have historical average to see what may happen in the future. In 2010 did you buy Bitcoin at pennies on the dollar? Buy now, it will appreciate in value.
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philipma1957
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'The right to privacy matters'
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June 10, 2016, 04:51:26 PM |
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at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt? Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper you'd be pushing it pretty hard. easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W Under clock a bit more to 11.5th. The 1300 g2 will work fine.. Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th.
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suchmoon
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June 10, 2016, 05:25:44 PM |
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at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt? Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper you'd be pushing it pretty hard. easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W Under clock a bit more to 11.5th. The 1300 g2 will work fine.. Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th. At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway.
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jermwerty
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June 10, 2016, 05:27:05 PM Last edit: June 10, 2016, 05:40:48 PM by jermwerty |
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Unless price of BTC doubles in short order after halving ( http://www.bitcoinblockhalf.com/ ) of Block rewards early adopters are screwing themselves paying these initial asking prices for S9. Curious to see what the S9 will be selling for in August. No technically everyone who buys this is screwing themselves, even if BTC price doubles. I think the doubling will happen (well 400>800) but the point is you'd be better off buying 3.4BTC and HODL rather than spend 3.4BTC to make 2.9BTC back in the future!
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alienesb
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June 10, 2016, 05:31:10 PM |
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Unless price of BTC doubles in short order after halving ( http://www.bitcoinblockhalf.com/ ) of Block rewards early adopters are screwing themselves paying these initial asking prices for S9. Curious to see what the S9 will be selling for in August. No technically everyone who buys this is screwing themselves, even if BTC price doubles. If think the doubling will happen (well 400>800) but the point is you'd be better off buying 3.4BTC and HODL rather than spend 3.4BTC to make 2.9BTC back in the future! Exactly.
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bspurloc
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June 10, 2016, 05:43:21 PM |
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at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt? Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper you'd be pushing it pretty hard. easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W Under clock a bit more to 11.5th. The 1300 g2 will work fine.. Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th. At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway. well the 1300 only has 6 atx connectors so lame. What server PSU? I only have 110volt outlets. I'm not paying the power bill so don't really care about those costs. I assume with a server PSU you have to add the 10 atx connectors. any good place for those if so? the cheapos are made with wire too thin for these amp ratings.
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suchmoon
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https://bpip.org
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June 10, 2016, 06:08:17 PM |
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at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt? Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper you'd be pushing it pretty hard. easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W Under clock a bit more to 11.5th. The 1300 g2 will work fine.. Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th. At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway. well the 1300 only has 6 atx connectors so lame. What server PSU? I only have 110volt outlets. I'm not paying the power bill so don't really care about those costs. I assume with a server PSU you have to add the 10 atx connectors. any good place for those if so? the cheapos are made with wire too thin for these amp ratings. If I recall correctly EVGA G2 1300W has 8 PCI-e, two of which are shared but sufficient gauge to do ~150W or so needed for an underclocked S7/S9. A high-quality aftermarket splitter should be ok for the 9th one and the controller can be powered off Molex. Attempt this ONLY if you know exactly what you're doing otherwise it's a fire hazard. If you don't care about the power costs I'm guessing you won't care about installing a 240V circuit either so perhaps the server PSU route is not for you
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Biodom
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June 10, 2016, 06:10:26 PM |
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at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt? Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper you'd be pushing it pretty hard. easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W Under clock a bit more to 11.5th. The 1300 g2 will work fine.. Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th. At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway. well the 1300 only has 6 atx connectors so lame. first of all, eight (four singles and two doubles=8); second, I bought two PCIe split cables (for $4 ea) that increase total numbers of connectors to 10. has been running many B1-5 and 6 like this for 6-8 mo already on EVGA 1300. S7 b1,3,5 has similar 1293 wattage, B2,4,6 even less watts. EDIT: exactly what @suchmoon said as well ^^^^
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Finksy
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June 10, 2016, 06:27:33 PM |
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I think you guys missed the power consumption of batch 1 1375 and batch 2 1275. If you calculate it u will see that B1 and B2 are equivalent. Efficiency is the same, but price per TH/s is higher on the later shipping batch which is a step backwards. supply, meet demand. They can make as little or as great of supply as they choose, there won't be any demand from this guy at that price. I guess there will always be those who are desperate enough to get the latest and greatest, or those who do reviews and want the early exposure. I know I made that mistake with the B1 S7's. It seems to be nearly a consensus that there is a lot of markup built in to that price, we just need some competition or common sense to reach the market to get the pricing in check with reality. It is all speculation, but you do have historical average to see what may happen in the future. In 2010 did you buy Bitcoin at pennies on the dollar? Buy now, it will appreciate in value.
Exactly, buy coin and leave the S9's to the suckers. I never thought I'd hear myself say that, but it's true.
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Puffy23
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June 10, 2016, 06:47:44 PM |
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But... But... It says it's a limited edition!
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