cheapest psu with 4 8 pin pcie connectors
- Thread starter Dan28453
- Start date
Solution
superninja12
Glorious
- May 18, 2015
- 11,378
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PCPartPicker part list / Price breakdown by merchant
Power Supply: Corsair - CXM 550W 80+ Bronze Certified Semi-Modular ATX Power Supply ($38.98 @ Newegg)
Total: $38.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-06-08 17:05 EDT-0400
it would work greta with a 450w unit.
you cannot mix those 3 cards in 1 system.
Power Supply: Corsair - CXM 550W 80+ Bronze Certified Semi-Modular ATX Power Supply ($38.98 @ Newegg)
Total: $38.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-06-08 17:05 EDT-0400
it would work greta with a 450w unit.
you cannot mix those 3 cards in 1 system.
youre the most idiotic person i have ever met lol..
i ask for a power supply to run all three cards in one system which would work perfectly fine but you link me a trashy cx power supply that literally only has 2 8 pin connectors and make a stupid comment saying all three amd cards that use one base driver wont work in a system for bitcoin mining.
Barty1884
Retired Moderator
- Apr 16, 2015
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Assuming you could get those cards working for mining purposes (and I don't see why you couldn't....probably going to be a nightmare to work with though), you certainly don't want the "cheapest" PSU available to you. Incidentally it would probably be:
http://www.outletpc.com/vq9179-solid-gear-sdgr-900e-atx-900-watt-power-supply.html?utm_source=vq9179-solid-gear-sdgr-900e-atx-900-watt-power-supply&utm_medium=shopping%2Bengine&utm_campaign=pcpartpicker&utm_content=Solid%20Gear%2B-%2BPower%20Supplies%20%3E%20ATX%20Power%20Supply
2x 6+2 connectors
2x 6 pin connectors.
Should be sufficient for an RX 480 (8pin), 260X (6 pin) and a 7970 (1x 8 + 1x 6).....right? :lol:
A $60 "900W" PSU sold at outlets like...... Walmart. No reviews online period, let alone anything reputable. I'd be inclined to keep one of these guys handy:
Not ideal for a mining rig with 24/7 usage! (and looking at it, it's rated as a 750W unit with 62A on the 12V rail.....apparently).
65W PSU, 270W 7970, 150W 480, 115W 260X..... plus the balance of everything = ~650W or so.
Given 24/7 usage of a mining rig...... I'd want to be running <50% of it's rated capacity. So you're looking at 1200W+/.... and those don't come cheap. With 600W+ constant usage, you want the best efficiency available too (to mitigate the power bill some).
PCPartPicker part list / Price breakdown by merchant
Power Supply: Corsair - Professional 1200W 80+ Platinum Certified Fully-Modular ATX Power Supply ($214.99 @ Newegg)
Total: $214.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-06-08 17:19 EDT-0400
Incidentally....... do you have access to extremely cheap/free energy? (Solar etc)
http://www.outletpc.com/vq9179-solid-gear-sdgr-900e-atx-900-watt-power-supply.html?utm_source=vq9179-solid-gear-sdgr-900e-atx-900-watt-power-supply&utm_medium=shopping%2Bengine&utm_campaign=pcpartpicker&utm_content=Solid%20Gear%2B-%2BPower%20Supplies%20%3E%20ATX%20Power%20Supply
2x 6+2 connectors
2x 6 pin connectors.
Should be sufficient for an RX 480 (8pin), 260X (6 pin) and a 7970 (1x 8 + 1x 6).....right? :lol:
A $60 "900W" PSU sold at outlets like...... Walmart. No reviews online period, let alone anything reputable. I'd be inclined to keep one of these guys handy:
Not ideal for a mining rig with 24/7 usage! (and looking at it, it's rated as a 750W unit with 62A on the 12V rail.....apparently).
65W PSU, 270W 7970, 150W 480, 115W 260X..... plus the balance of everything = ~650W or so.
Given 24/7 usage of a mining rig...... I'd want to be running <50% of it's rated capacity. So you're looking at 1200W+/.... and those don't come cheap. With 600W+ constant usage, you want the best efficiency available too (to mitigate the power bill some).
PCPartPicker part list / Price breakdown by merchant
Power Supply: Corsair - Professional 1200W 80+ Platinum Certified Fully-Modular ATX Power Supply ($214.99 @ Newegg)
Total: $214.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-06-08 17:19 EDT-0400
Incidentally....... do you have access to extremely cheap/free energy? (Solar etc)
Barty1884
Retired Moderator
- Apr 16, 2015
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Glad to hear you have access to a cheap power source. I'd actually updated my post, but it's more relevant at the end
While bitcoin mining is starting to look (a little) profitable again, you'd still want to operate where power is cheap.
1 Bitcoin = $3,700 USD or so
With a high end rig** you can mine approx 1/10th of a bitcoin per month (lets say you get $370 per month....although it doesn't work like that, obviously).
650W
x24 hours per day
= 15,600W
/1000 = 15.6 kWh per day
x 30 days
= 468kWh per month.
Average cost somewhere in the $0.10 to $0.20/kWh
So 468 x $0.1 = $46.80
468 x $0.2 = $93.60
Per month cost, before fees and cost of hardware.
**That assumes high end hardware.....and no disrespect, but yours is not a numerous 480 or 580 setup.
Lets say your time to mine doubles as a result, in a basic sense, you now 'earn' $185 /month (or $3,700 every 20 months).
So, unless you have cheap-cheap electricity....... it seems like a lot of effort/cost for a potential net profit of ~$60 a month.
While bitcoin mining is starting to look (a little) profitable again, you'd still want to operate where power is cheap.
1 Bitcoin = $3,700 USD or so
With a high end rig** you can mine approx 1/10th of a bitcoin per month (lets say you get $370 per month....although it doesn't work like that, obviously).
650W
x24 hours per day
= 15,600W
/1000 = 15.6 kWh per day
x 30 days
= 468kWh per month.
Average cost somewhere in the $0.10 to $0.20/kWh
So 468 x $0.1 = $46.80
468 x $0.2 = $93.60
Per month cost, before fees and cost of hardware.
**That assumes high end hardware.....and no disrespect, but yours is not a numerous 480 or 580 setup.
Lets say your time to mine doubles as a result, in a basic sense, you now 'earn' $185 /month (or $3,700 every 20 months).
So, unless you have cheap-cheap electricity....... it seems like a lot of effort/cost for a potential net profit of ~$60 a month.
well ive rethought my choice and i think im just going to go with just another rx 480 seeings though my corsair hx650 can run those perfectly fine, i see no reason to not do so and as for the 260x i think i might just do some sketchy dual power supply setup using an old corsair cx430 that i have lying around (or just sell the 260x for extra $$ so things are neater).
Barty1884
Retired Moderator
- Apr 16, 2015
- 22,250
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- 108,740
Absolutely USAFRet.
Even using my (very rough) calcs above, the 'average' person doing it it going to be paying $100+ after fees.......... by the time you factor in the cost of hardware, it's only barely profitable. Without solar of course.
Even using my (very rough) calcs above, the 'average' person doing it it going to be paying $100+ after fees.......... by the time you factor in the cost of hardware, it's only barely profitable. Without solar of course.
Barty1884
Retired Moderator
- Apr 16, 2015
- 22,250
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:lol: true. I wasn't advocating for it at all. Just hearing that mining is veering into profitability again and wow.... I mean, technically correct*, but still.
It's barely profitable, as you say, net $1 per day......assuming the difficultly to mine doesn't go up and the cost per bitcoin doesn't come down (although I believe those are impossibilities).
It's barely profitable, as you say, net $1 per day......assuming the difficultly to mine doesn't go up and the cost per bitcoin doesn't come down (although I believe those are impossibilities).
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