Thank you for that information.

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Would this computer be able to handle 2 RTX 2080 Ti cards?
GenuineIntel
Intel(R) Core(TM) i7-4960X CPU @ 3.60GHz [Family 6 Model 62 Stepping 4]
(6 processors)

Thanks

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I have an i7-5820K (same # of cores, PCIe rev.) keeping the 4 x 2080tis completely occupied, so it would be fine. The 4960X is only about a tenth slower in memory bandwidth, it's 300MHz faster default clock and it even supports more PCIe lanes... it would probably keep even four 2080ti's busy just as well as mine does.
5820k 4960x

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Thank you, I will have to try only two since I only have two slots. I heard something about externally having RTX 2080 Ti? I am probably mistaken about that.

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They make external gpu chassis that connect via a Thunderbolt connection. Borrowed from the MacWorld.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Which 2 RTX 2080 ti cards should I buy to replace my old 780 ti cards in this computer?

GenuineIntel
Intel(R) Core(TM) i7-4960X CPU @ 3.60GHz [Family 6 Model 62 Stepping 4]
(6 processors)

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Whatever you can find and whatever is the cheapest. The cards are all basically the same reference design with different coolers.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Thank you.

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Looking like it will be i9900 plus 4 water cooled RTX 2080 Ti cards.

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Looking like it will be i9900 plus 4 water cooled RTX 2080 Ti cards.

What 300 series motherboard did you get with four PCIe X16 slots?

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

This is just one. But they exist.

Obviously they run on reduced lane counts via the PCH and/or PLX chips.

https://www.asus.com/us/Commercial-Servers-Workstations/WS-Z390-PRO/

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Seti@Home classic workunits: 29,492 CPU time: 134,419 hours

He posted the wrong cpu he is getting. He is getting a i9-9980 XE which is a LGA-2066 cpu and goes into a proper workstation X299 motherboard. I found 3 four slot ASUS motherboards. His post referenced an improper motherboard too from his system builders. The board he posted won't support four cards.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

Yeah I saw his other comments in the other thread. Just thought I’d chime in and answer your original question.

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Seti@Home classic workunits: 29,492 CPU time: 134,419 hours

Does it help to have the virtual box when having Lenux and Microsoft on the same computer? Is it simple to use one for work and emails, etc, and use Lenux for crunching SETI for higher speed? Can Lenux run in the background while the Microsoft works on email, work, web sites and so on?

Thank you,

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I'm sure I will be corrected since I know nothing about how VM's work. But if the host OS is Linux for crunching and the guest OS is Microsoft in the VM session, I think it will do as you desire.

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Seti@Home classic workunits:20,676 CPU time:74,226 hours

A proud member of the OFA (Old Farts Association)

I am sure somehow 4 gpu cards will be supported and am also sure in my excitement i messed up on the specs. It should be here around the end of the month.

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I hope the OP doesn't mind me piggy-backing onto this thread. I've been away for a while and a little out-of-the-loop and I can't remember if I asked this already. I have two RTX 2070s running under Windows 10. Is running more than 1 workunit per GPU still advisable for best performance? If so, how many per GPU is optimal for these RTX 2070s? They're air-cooled and no overclocking, with GPU temps right around 53C.

Thanks for any input.

I'd try doing 2 at a time at first and see how they run.

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Thanks. I forgot to mention I am running two per GPU right now. Given that, have others found the sweet spot on their hardware? I'm averaging about 540 seconds per blc26/guppy workunit using stock OpenCL_nvidia_SoG application.

2 is the sweet spot for anything less than a 1080Ti. You could try 3 on your 2070s and see what the times look like. Shouldn't take long to see what the times look like.

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