Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order
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
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
