Folding Build #4

[ryoungblood]

Just started my 4th folding build. This one is going to be my most ambitious project yet.

My plan is to build a machine with 4 1080 Ti with a budget of ~$4k (thanks to recent appreciation of Foldingcoin/Curecoin).

Parts purchased so far:

ASRock X99 WS LGA 2011-v3 Intel X99 SATA 6Gb/s USB 3.0 Extended ATX Intel Motherboard
Intel Core i7-5930K Haswell-E 6-Core 3.5 GHz LGA 2011-v3 140W BX80648I75930K Desktop Processor
EVGA SuperNOVA 1300 G2 120-G2-1300-XR 80+ GOLD 1300W Fully Modular Includes FREE Power On Self Tester Power
CORSAIR Vengeance LPX 8GB 288-Pin DDR4 SDRAM DDR4 2400 (PC4 19200) Desktop Memory Model CMK8GX4M1A2400C16
TOSHIBA DT01ACA100 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
MSI GeForce GTX 1080 Ti FE DirectX 12 GTX 1080 Ti Founders Edition 11GB 352-Bit GDDR5X PCI Express 3.0 x16 HDCP
AORUS GeForce GTX 1080 Ti 11GB Video Card
Mining Rig Open Air Frame - Model R3

My goal is to hit 10M PPD following completion of this build.

 

[Nihilus]

Damn, the new build will be a beast! Over 4 million PPD on one system is amazing. I would be curious to see what the power draw is of that setup!

 

[tom_ozahoski]

My poorly educated guess would be 1200 watts!

 

[ryoungblood]

I'm hoping total draw will be just around that, yes.

 

[Audioaficionado]

We hope you fold for team 32, but we're here to help in any case.

 

[the_cultie]

I can't wait to see how it looks. Is the 1TB hard drive a bit overkill for a folding rig?

 

[ryoungblood]

I can't wait to see how it looks. Is the 1TB hard drive a bit overkill for a folding rig?

Yes, but it was a combo deal. It wasn't necessarily purchased for my folding rig. I had an extra SSD I used for that.

 

[torin3]

You're using risers. I'm looking forward to seeing what you get for PPD.

 

[ryoungblood]

They're x16 risers, so they run at full load. This machine is currently pulling 3 - 3.5M PPD.

 

[torin3]

They're x16 risers, so they run at full load. This machine is currently pulling 3 - 3.5M PPD.

I tried running with a card on a x16 riser and got about 1/2 the expected PPD out of that card. I'm wondering why I got such poor performance. With the card slotted directly, I'm getting the expected performance, so it isn't a board problem.

I don't mean to thread-jack, so if you don't want to help troubleshoot, let me know. If you do, but not here, we can move this over to my thread. Just let me know.

 

[ryoungblood]

I tried running with a card on a x16 riser and got about 1/2 the expected PPD out of that card. I'm wondering why I got such poor performance. With the card slotted directly, I'm getting the expected performance, so it isn't a board problem.

I don't mean to thread-jack, so if you don't want to help troubleshoot, let me know. If you do, but not here, we can move this over to my thread. Just let me know.

I'm happy to help. Was GPU-z saying it was on an x16 slot? You should be able to pull 100% PPD on a PCIe 3.0 x8. Anything lower than that and I've noticed a drop in PPD.

 

[torin3]

I'm happy to help. Was GPU-z saying it was on an x16 slot? You should be able to pull 100% PPD on a PCIe 3.0 x8. Anything lower than that and I've noticed a drop in PPD.

GPU-Z was reporting PCI-E 3.0 x8 speeds with and without the x16 riser cable. These cables are blue plastic coated wires, flat ribbons, two sections and double rows. Like old hard drive ribbon cables. I can post pictures when I get home tonight. About 30cm long.

 

[ryoungblood]

Interesting. I would think you should get full PPD. I'm using EZDIY x16 risers from Amazon. I have 5 and they're all working great.

 

[ryoungblood]

For the curious. 3 x 1080 Ti @ full load w/ 85% fan speed runs about 800W.

 

[the_cultie]

That looks beautiful. I want one too

 

[torin3]

Interesting. I would think you should get full PPD. I'm using EZDIY x16 risers from Amazon. I have 5 and they're all working great.

Those are out of stock, or I'd get one right now. However, I see they are foiled to shield them. That may be the cause of my problems. Not enough interference to fail, but maybe enough to drop the PPD. I might look around for another source. If I can avoid water cooling, that will keep my costs down. I'm thinking of just using 2 risers and staggering my cards vertically, though that might be an issue if the fans are right next to the riser cables. Still contemplating, but it looks like I need to get one of those riser cables to test before anything else.

 

[sporktar]

Subbing to see what kind of numbers you get. I've been considering a project like this as well.

 

[ryoungblood]

Those are out of stock, or I'd get one right now. However, I see they are foiled to shield them. That may be the cause of my problems. Not enough interference to fail, but maybe enough to drop the PPD. I might look around for another source. If I can avoid water cooling, that will keep my costs down. I'm thinking of just using 2 risers and staggering my cards vertically, though that might be an issue if the fans are right next to the riser cables. Still contemplating, but it looks like I need to get one of those riser cables to test before anything else.

IMO, go with EZDIY's smaller x16 risers and get a open air rig here. The risers I got (that are out of stock) are much too big and the smaller ones are cheaper and would still do the trick.

 

[ryoungblood]

If anyone else is a data***** like me, you can check out my dashboards here.

 

[Suppressor1137]

I wish I had that kind of money to throw at stanford lmao.

In all seriousness, I will do what I can. Even a 323k PPD, it is still 323k that they didn't have before.