Used Gpus?

mikey
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Tom M wrote: GWGeorge007

Tom M wrote:

GWGeorge007 wrote:

Tom M wrote:

...[SNIP]...

Later on when I am feeling more ambitious than I am right now I will swap the 3050x/MB back into the large server case (upright) that I have and swap the 2700x/MB/2 Rx 580's into the mid-sized Atx case I have.

Tom M

Do you mean 3950X ?

George,

Right now the 3950x is in the mid-sized tower.  However the giant air cooler fan is sticking up far enough you can't close the case.  I have a server class case that is currently home to a 2700x/Rx 580's that previously housed the outsized air cooler.  So "the plan" such as it is, is to swap the two so both can be buttoned up against dust etc.

Tom M

I leave the sides off for better cooling on all of my pc's, in fact most of the sides have been sent to the recycling center. I have most of my pc's in a dedicated 'pc room' or 'man cave' as my wife likes to call it that has a door and it's own mini-split a/c system.I have 15 pc's running, or will have once they finish my new home, but I had the same setup in my old home I sold for a hefty profit to build the new larger home.

archae86
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JStateson wrote: With china

JStateson wrote:

With china banning crypto including the actual mining I assume a lot of GPU boards are going to become available driving price down.

I've got a used 5700 waiting for me to eBay it.  Looking at recent completed sales, it appears I might get $850 out of it.  I need to get off the dime and put it up for sale--this madness is not going to last forever.

Tom M
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archae86 wrote: JStateson

archae86 wrote:

JStateson wrote:

With china banning crypto including the actual mining I assume a lot of GPU boards are going to become available driving price down.

I've got a used 5700 waiting for me to eBay it.  Looking at recent completed sales, it appears I might get $850 out of it.  I need to get off the dime and put it up for sale--this madness is not going to last forever.

Peter,

The prices may have slumped already :/

If your electrical bill budget can afford it you might actually want to put it back online :)  I am getting right at 900,000 RAC per Rx 5700 running two tasks at a time on my Windows box.

Tom M

A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)  I want some more patience. RIGHT NOW!

Exard3k
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archae86 wrote:-this

archae86 wrote:

-this madness is not going to last forever.

The next crash is coming. I'd prefer sooner than later, but spring/summer 2022 will be interesting times. But don't expect prices to fall with christmas season soon. With manufacturers hoarding chips and Intel GPUs on the horizon, I'm going for spring/summer 2022 being the sweetspot for purchases.

 

I'm taking it slow in these unfortunate times and I'm waiting for good deals next year. Looking for 1-2 passive cooled low end and two high end cards.

 

Intel has to make friends with GPU buyers, so I expect good prices and support that can only help customers and E@H too.

archae86
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The Financial Times edition

The Financial Times edition for Monday, October 4, 2021 has a major article on Ethereum, making plain the writer expects it to perform real functions, and likely to be around for a while.

For some reason that sent me looking for recent findings regarding Ethereum mining power and purchase price effectiveness by GPU model, and I came across this:

Tom's Hardware ranking of GPUs for mining

The power numbers have the advantage that they are actually measured, rather than relying on the "confession" generated by the card (or worse yet, specs).  But a big disadvantage is that power is measured at the card, thus missing the host system contribution.  This tends to make lower-capability cards look better in operating cost relative to high capability cards than in the real world.

That said, I can see why some cards some people around here have liked for Einstein are so elevated in price even though they are not anywhere near current top-end gaming performance.  Yet more surprising: the top two finalists measured by time to recover your purchase cost (including power priced at US$.10/kWHr) are the GTX 1060 and the RX 570. 

I notice that the 5700 I currently am selling on eBay gets a pretty good ranking viewed this way.  I also notice that by Tom's measurements the XT variants of both the 5700 and the 6800 offer very, very little Ethereum production advantage over the non-XT variants.

Exard3k
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Quote:(including power priced

Quote:
(including power priced at US$.10/kWHr) 

 

While that may be true for half the world, the other half pays considerably more. Being german, I pay 28ct/kWh. That's all wind and solar power, but that doesn't impact the calculation.

archae86
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Exard3k wrote:While that may

Exard3k wrote:
While that may be true for half the world, the other half pays considerably more.

You are pointing out why no single version of this list can work for everyone, even if everyone is mining ethereum.  The serious miners set up installations at places chosen in large part for cheap, available power, so many of them pay even less than the ten cents US in this table.  On other other hand, as you point out, many, many home users running Einstein pay more--a little or a lot.

Still, I think it is well that the table forces attention to power efficiency.  Here at Einstein a few years ago it was pretty uncommon for participants even to mention it.  By now many recognize it as a primary cost factor in their contribution.  That is progress.

Exard3k
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archae86 wrote:  By now many

archae86 wrote:

 By now many recognize it as a primary cost factor in their contribution.  That is progress.

 

With current GPU prices, the relation between price and ongoing costs is still very different to the situation a year ago. But running something that requires power 24/7 for years will considerably increase the effective cost of that piece of hardware. 100W is 250€ every year, so getting new hardware (which is more power efficient in general) becomes a lot more attractive here. I've just done the calculations for my future NAS....old server hardware from ebay is just too expensive to run, even if it was free.

 

 

mikey
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Exard3k wrote: archae86

Exard3k wrote:

archae86 wrote:

 By now many recognize it as a primary cost factor in their contribution.  That is progress.

 

With current GPU prices, the relation between price and ongoing costs is still very different to the situation a year ago. But running something that requires power 24/7 for years will considerably increase the effective cost of that piece of hardware. 100W is 250€ every year, so getting new hardware (which is more power efficient in general) becomes a lot more attractive here. I've just done the calculations for my future NAS....old server hardware from ebay is just too expensive to run, even if it was free. 

I buy off business lease computers with 8 or 16gb of ram and dual quad core Xeon chips, but no hard drive, in them for around $150US on Ebay and then put an old copy of Windows or Linux Mint on them and happily crunch cpu tasks 15 at a time. I reserve 1 cpu core so I don't max the cpu's out and in most of them I put an Nvidia 980 or something like that in them to run gpu tasks. The only problem for me is the heat the psu's in those things put out but I could replace their old inefficient psu's with more efficient external ones but that means wires everywhere!!! Those boxes crank out the cpu tasks en mass which helps my stats.

As for newer gpu's the idea is to replace several older ones with one new much better ones but we crunchers being who we are don't like downsizing as it gives us fewer options, so we end up spending more every time we upgrade.

archae86
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Tom M wrote: archae86

Tom M wrote:

archae86 wrote:
I've got a used 5700 waiting for me to eBay it.  Looking at recent completed sales, it appears I might get $850 out of it.

Peter,

The prices may have slumped already :/

The auction closed just now for $825.  I had four different bidders bid $750 or more, so there is still some interest out there.

My listing specifically stated "primarily used to search for Gamma-Ray Pulsars by running distributed computing tasks sent out by the Einstein at Home project."  Maybe that discouraged some, but not all.

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