Posts by Todderbert

1) Message boards : Number crunching : Bitcoin GPU-based Mining Machines good for BOINC / SETI? (Message 2004325)
Posted 26 Jul 2019 by Profile Todderbert
Post:
I think the summary result should be "Yes"!

Tbar's Intel-based 19 gpu slot board running 14 NVIDIA gpus with an Intel i7-6700K (discontinued) (4c/8t).
So he is basically running 0.5 cpu to 1 gpu ratios (I think I read that).

He is getting that giant RAC using 3 gtx 1070's and a lot of gtx 1060 3GB's and 1 (I think) gtx 970.

So if you already own a lga 1151 socket cpu someplace near an i7-6700K you can probably replicate Tbar's results without sinking a lot of buck's into gtx 1080's or RTX anything's. Re-use your cpu, ram, get a robust Bitcoin-based MB with a lot of gpu slots, riser card kits and.....
Move all your Nvidia gpus onto one box (actually a Mining Rack will probably make more sense). Yes you will probably need to plug a couple fairly large PSU's into the MB and different cards.

And if you already have an Amd AM4 socket cpu/ram you can hang up to 9 gpu's if you use Biostar's Am4 Mining MB (6 gpu slots plus a single 1 to 4 extender card). Still likely need a mining rack though.

Tom


I love this idea, but my wife didn't...so I have multiple boxes around the house.
2) Message boards : Number crunching : Setting up Linux to crunch CUDA90 and above for Windows users (Message 2003535)
Posted 21 Jul 2019 by Profile Todderbert
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I got another 1070ti and 1050ti coming in soon.


Nice, I have a 2060 Super arriving in a few days. Should be an interesting time with the driver setup.
3) Message boards : Number crunching : Setting up Linux to crunch CUDA90 and above for Windows users (Message 2003314)
Posted 19 Jul 2019 by Profile Todderbert
Post:
Good stuff. The power efficiency of the 750ti is impressive for such an old GPU. rated for 75W, but when I had some of them, they were only really reporting about 30-35W or so.

it's only recently with the Turing cards that they have surpassed it in the (SETI)credit/watt metric


It is still neat to see the 750Ti is in the Top 15 Credit/Watt-Hour chart. I have six of them and run them here and on PrimeGrid. Those were probably the best investments I made in 2015.
4) Message boards : Number crunching : User achievements thread......... (Message 2002514)
Posted 14 Jul 2019 by Profile Todderbert
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I actually started when Seti started, 1st desktop died just after Classic, then with my laptop died July this year, now have an Acer Predator desktop only to crunch with as well as all the internet stuff, but it's fun..


It sure is fun, I own a few 960s also. Congrats on the first million!
5) Message boards : Number crunching : Don't know where it should go? Stick it here! (Message 2001783)
Posted 9 Jul 2019 by Profile Todderbert
Post:
your criteria listed a case with sides on it. not that they had to be plugged directly to the motherboard. Yes it was using risers. However, GPU specific server cases exist that will take 8-10 GPUs and plug directly into a daughter board with PCIe links back to the main motherboard. ASUS makes one, supermicro has one or several also. they are VERY expensive and VERY loud.

the case I used is a Rosewill L4500 that I modified by removing the HDD cages up front, and moving the center fan wall back further, and used high flow/pressure Noctua fans. this allowed me to fit the GPUs in front of the motherboard and provided enough ventilation to get the hot air out of the case so it didn't accumulate and heat up the GPUs.

if you want all the cards plugged straight into a motherboard. you will have to watercool. and you will have to use GPUs that only has 1-slot I/O, and has a full cover waterblock available. the

In this case I think the most you'd get is 7 on some high end ATX motherboards that have [7x] x16 PCIe slots. and you'd have to find one of those 7x waterblock bridges.

like this: https://www.youtube.com/watch?v=tx52HMRS5Kg

there are also some proprietary server boards with 11 PCIe slots (like my board) that you could do the same, but i imagine it would take a lot of planning and modification. no one makes an 11-GPU bridge either, so i'm not sure how to get water to them all. and as always, be mindful of power to the motherboard. USE GPUs that you KNOW use low power from the motherboard and/or use a motherboard with sufficient auxiliary power for the PCIe slots.


I have that case, it is very versatile.
It sits empty now with it's 1600watt power supply waiting for a future build someday.
6) Message boards : Number crunching : Don't know where it should go? Stick it here! (Message 2001595)
Posted 8 Jul 2019 by Profile Todderbert
Post:
For myself, if I had the extra dough, I would buy the 2060 Super.
7) Message boards : Number crunching : Bitcoin GPU-based Mining Machines good for BOINC / SETI? (Message 2001401)
Posted 6 Jul 2019 by Profile Todderbert
Post:
So far all is well running 14 GPUs, in fact, all of my machines seem to have been sedated. Even the Hackintosh isn't rebooting anymore.
Of course, there could be a thunderstorm in the next hour, resulting in a power outage, which fries everything... but for now all is well.
There are a few sales around, and one of the Mining cases has suffered a drastic price drop, with an open box being even cheaper. I ordered the open box for $60, and will give it a try,
https://www.newegg.com/black-rosewill-r2030001-0118/p/N82E16811147284 I plan on mounting 6 gpus in the box and leaving the top off.
The high-flow fans cost as much as the box, oh well, my box fan will have trouble hitting those 6 gpus mounted in the box, and at some point I may cut a hole in the side and install the top.
Seems to be a problem with exit holes on that box, including Monitor cable exit holes. I have a dremel.... and it was only $60....

After that, I may even try a 6th or even a 7th card in the Hackintosh since it's running fine with 5 cards now. The ASUS Z170-WS board has 5 pcie slots and 2 M2 slots, I have ordered another M2 converter....
Right now I'm just passing time, waiting to see if the GPU prices on eBay drop in the next week or so before buying any 'new' gpus.


Awesome, loving the results you are achieving. Good job, and thanks for sharing your experience.
8) Message boards : Number crunching : Setting up Linux to crunch CUDA90 and above for Windows users (Message 2001266)
Posted 6 Jul 2019 by Profile Todderbert
Post:
What kind of results you guys getting from the 1050ti. I saw these cards on eBay for $28.99. Too good to be real?

HOLY $h!t That seems too good a price to be real. Look at Stephen's host with the dual 1050 Ti's. Not bad at all with the special app.
https://setiathome.berkeley.edu/results.php?hostid=8222433&offset=0&show_names=0&state=2&appid=


I'm running two 1050Ti's, It is a little over 50K a day.
9) Message boards : Number crunching : Setting up Linux to crunch CUDA90 and above for Windows users (Message 2000733)
Posted 3 Jul 2019 by Profile Todderbert
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I wonder how well my Titan Black would work with CUDA60 zi3v? I also have a 960 sitting in that machine. Right now it is running CPU only tasks on PrimeGrid. The GPUs stay off during the Summer months...and I normally turn them back on to use it as a heater in the Winter.

The Titan Black was modified with the EVGA Hybrid Cooler. Still working great.

10) Message boards : Number crunching : Nvidia RTX "Super" (Message 2000553)
Posted 1 Jul 2019 by Profile Todderbert
Post:
From what I read the 1660Ti is an amazing card for crunching here on Seti. From a credit per Watt-Hour. I was just looking at 2060s, and they had them on a decent sale the other day. The 1660Ti just kept coming back to me because I have to be frugal on power meter. Fun times to be had on GPUs this Summer.
11) Message boards : Number crunching : Bitcoin GPU-based Mining Machines good for BOINC / SETI? (Message 1998462)
Posted 16 Jun 2019 by Profile Todderbert
Post:
CPUs will not fry.

But they do just quit working for no apparent reason. I just have had two i7-6850K cpus go bad in the past two weeks. Temps were never higher than 60° C.


That is a bummer. I have some Haswells that keep rocking away with moderate OCs. I push them hard on PrimeGrid with the LLR apps.
12) Message boards : Number crunching : Welcome to the 20 Year Club! (Message 1998309)
Posted 15 Jun 2019 by Profile Todderbert
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Happy Twenty Years to Everyone! It is a great thing to see how many people from '99 are still partying on Seti.
13) Message boards : News : 20 years and counting! (Message 1998307)
Posted 15 Jun 2019 by Profile Todderbert
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Glad to be a part of history. Fun times looking at that screensaver for tell tale spikes :)
14) Message boards : Cafe SETI : The continuing of life's adventures of the kittyman. (Message 1897968)
Posted 28 Oct 2017 by Profile Todderbert
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Nice rig ! My stuff is all low key atm. Want to build a nice dual CPU rig one day, I have that empty Caselabs Mercury that can take the larger server style format MB.
15) Message boards : Number crunching : You have to love early Xmas and B'day presents (even if you have to pay for them yourself). (Message 1841721)
Posted 12 Jan 2017 by Profile Todderbert
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I bought some 1050Tis to replace some aging 750Tis and am very happy with the upgrade. Got them on sale for $129.99 and some $10.00 rebates to further lower their price. They are the simple EVGA SC single fan variety, no six pin requirement. They are stock autoboosting to 1800+.
16) Message boards : Number crunching : Fundraising time....Green stars for sale! (Message 1841719)
Posted 12 Jan 2017 by Profile Todderbert
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Donated $20.00
17) Message boards : Number crunching : raspberry pi 3 vs GPU, whats best? (Message 1787114)
Posted 12 May 2016 by Profile Todderbert
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I am enjoying a new Kindle Fire crunching on all four cores @ 1.7w constant. Cost: $40, RAC 263. Not bad for a Pi computing alternative, plus it has a touch screen.
http://setiathome.berkeley.edu/show_host_detail.php?hostid=7945727

I own quite a few Raspberry Pis of all makes and models, just have to get around to designing a project for them.
18) Message boards : Number crunching : Retro PC seti crunching (Message 1770834)
Posted 10 Mar 2016 by Profile Todderbert
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Cool idea, I have an old AMD Barton sitting in the closet from 2003. But my $40 kindle may outperform it @ 1.9watts ;)
19) Message boards : Number crunching : My Titan why so bad results (Message 1770371)
Posted 8 Mar 2016 by Profile Todderbert
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by chance you are not using double precision mode are you? that could slow things down a bit.
20) Message boards : Number crunching : SETI/BOINC Milestones [ v2.0 ] - XXIX (Message 1770262)
Posted 7 Mar 2016 by Profile Todderbert
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Congrats everyone.


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