I don't think you can really trust Dell XPS for higher end gaming PCs. Couldn't believe the way their garbage cooler and single channel RAM murdered the performance of a 3070 in this system for example:
Dell's quality control seems to be getting worse lately, which is shocking because it was never all that great to begin with. The tech support has always been bad, too. You should check out the Linus Tech Tips pre-built challenge if you want an idea how bad it is now.
For instance, I was pleasantly surprised to find my 3070 only drawing 123W at 62 MH/s...until I measured it at the wall and it was 178W.
You sure 178W is card-only power? Because at-wall power includes your system.
I've been playing around with the idea of using Pentium Silver J5005 so I can cut the system power down to 10-15W. It has 2 pci express slots so it'll be enough.
It's in my main system though with a 5600X/B550, but I'm not sure what's drawing all the power.
You are not at 0W because you aren't using the system. The CPU draws a few W at idle, RAM uses few W by itself, having the motherboard active uses little bit, the storage uses extra, the fan uses a small amount, and there's power supply losses as well.
If you are a True Believer and that crypto is the future and ETH is long term viable and they won’t fork and kill your stock pile, calculating ROI on today’s prices is silly.
Go back eight or so years and believe in your heart of hearts that BTC would sustain value over $50k for real and it would be a different calculation. Those who both believed, kept mining and HODL’d for the future are doing fine though.
I would wager some miners don’t have their eyes on today but on a more distant horizon.
If mining profitability decreases to a net loss, wouldn't it make more sense to just shut down the GPU and buy the coins outright, at least until mining becomes profitable again?
There are a number of high yield crypto savings accounts popping up as well. Buying coins and getting them to earn 10% APY asap seems like a a nice alternative when mining profits decline.
This is all new to me though, so I'm sure there are many variables I'm not taking into account.
Yes, if crypto prices decline to the point where one is not making money after electricity costs, then yes, it makes more sense to shut down miners and just buy crypto on an exchange. In that case the only people mining would be people living in apartments where electricity is part of the rent.If mining profitability decreases to a net loss, wouldn't it make more sense to just shut down the GPU and buy the coins outright, at least until mining becomes profitable again?
It's this one: https://www.newegg.ca/evga-supernova-750-g1-120-gp-0750-x1-750w/p/N82E16817438132What kind of PSU are you using? There's a good chance a lot of power is being lost when the PSU is converting the electricity. Even if it's 80+ most power supplies aren't very efficient if they're only operating at a small amount of their rated capacity. If it's something like an 800W PSU, moving down to something closer to the actual draw will be more efficient at the wall.
It's this one: https://www.newegg.ca/evga-supernova-750-g1-120-gp-0750-x1-750w/p/N82E16817438132
After all the time I spent picking a PSU, there's no way I'm going to change it now . I actually could have easily got away with a 650w, which would have about 1/2 used with a 3070 when gaming, but got the 750 for less than the price of the 650 at the time, so picked it instead. I mean, to keep it 'close' I would need a 250W PSU, which I don't think exists anyways. I don't plan on ever upgrading that again unless it fails. This mining thing is only temporary.
I did see about a 10w drop when I changed out my OCZ 600w to a 80+ Bronze B5 550w in my other rig (with the 5700XT). That only adds up to a whopping $12.29 CAD per year if used 24/7:
https://www.saskpower.com/Efficienc...Analyze-Your-Use/Power-Consumption-Calculator
Yah I know. That's why a 650w would have been perfect for my 5600X/3070. Believe me, I spent far too long researching power supplies (see PSU thread).Most PSUs see max efficiency ~50% of max rated power, just FYI.
I forget exactly where it kicks in, but I think for an 80+ Gold, it isn't going to require it to hit the rated efficiency levels below 25% of the total draw, which for a 750W PSU is around 180W so coming in below that could be a lot less efficient than you might expect. It's not going to be abysmal, but like Hitman said, most power supplies are going to see peak efficiency at around half of the max rated power.
Really this just means you should add another card to the system so that it bumps up the load on the PSU to make it more efficient.
Dell's quality control seems to be getting worse lately, which is shocking because it was never all that great to begin with. The tech support has always been bad, too. You should check out the Linus Tech Tips pre-built challenge if you want an idea how bad it is now.
Ha, you're funny...another GPU! 🤣 At 50w system use, it's not like it's burning the house down or anything. With all this 'you must get an 80+ gold' efficiency talk, I was rather surprised that my 13+ year old 12lb OCZ PSU is only drawing 111W with the 1660 Super (69W for the card). Once I start gaming with the 3070 again, it will get up close to the proper efficiency at least.
80+ just means a PSU is guaranteed to get at least a certain amount of efficiency at various points across the rated capacity.
Even PSUs that aren't certified can still be quite efficient, particularly when the run near the percentage load at the top of the efficiency curve.
Without reading a review you wouldn't know what that is, so the 80+ certification is just a way for consumers to generally know what they're getting without having to do a lot of research.
Ha, you're funny...another GPU! 🤣 At 50w system use, it's not like it's burning the house down or anything. With all this 'you must get an 80+ gold' efficiency talk, I was rather surprised that my 13+ year old 12lb OCZ PSU is only drawing 111W with the 1660 Super (69W for the card). Once I start gaming with the 3070 again, it will get up close to the proper efficiency at least.
That is a sweet power supply, a good buy. Check out the power graph for it here:
notes:EVGA SuperNOVA 750 P2 PSU Review
Another EVGA P2 is on our test bench today. The 750 P2 features 750W max power, modular cabling and Japanese caps throughout. This PSU promises high performance and increased reliability, so it looks to be a great choice for enthusiast PCs.www.tomshardware.com
86% efficient at 75 watts
88% efficient at 100 watts.
90% efficient at 150 watts.
91% efficient at 250 watts.
Ignore the others, your power supply is excellent for this. The advice you received about getting at least a 80+ gold was correct.
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You know your going to add another GPU in, right? It took 7 years for me to do it, but I eventually added a 2nd GPU. My 7 year old 650watt evga psu is happily pulling 480* watts off the wall as I type this.
*210-GQ-0650-V1 running rx6900xt + vega56 + 4790k + cooling as it mines** eth + me using the computer
** 91.53 Mh @ 480w /w .13 kWh = $5.75 profit per day or $2099.45 per year
That's a different PSU that is Platinum rated.