MSI X570 Ace with 3 Gpus???

[A random asian guy]

Hi everybody, I previously owned a desktop (majorly for 3D rendering and Deep Learning) with the following specs:

Processor: AMD 5950X

Ram: G.SKILL TridentZ RGB Series 128GB (4 x 32GB) 288-Pin DDR4 SDRAM DDR4 4000

Motherboard: MSI X570 ACE

GPU: 2 x 2080Ti founder edition (did no do SLI since does not need it)

Storage: 1 x SAMSUNG 980 PRO M.2 2280 2TB, 2 x Samsung 860 EVO SSD 4TB

Power: 1300W Seasonic Gold

Case: LIAN LI O11 Dynamic XL ROG

 

Now I got one more 3080 Ti, I was wondering whether it is possible for me to add it to the current setup?

 

Since the specs of the Mobo said:

1. 1x PCIe 4.0/ 3.0 x16 slot (PCI_E5, supports x4 mode)
2. 2x PCIe 4.0/ 3.0 x1 slot
3. 2x PCIe 4.0/ 3.0 x16 slots (PCI_E1, PCI_E3)

• 3rd Gen AMD Ryzen™ support PCIe 4.0 x16/x0, x8/x8 modes
• 2nd Gen AMD Ryzen™ support PCIe 3.0 x16/x0, x8/x8 modes
• Ryzen™ 4000 G-Series support PCIe 3.0 x16/x0, x8/x8 modes
• Ryzen™ with Radeon™ Vega Graphics and 2nd Gen AMD Ryzen™ with Radeon™ Graphics support PCIe 3.0 x8 mode1

If I understand it correctly, I could put 3080Ti on the top PCIe (which should be x16 in use since does not enable SLI, but x8 when using CUDA?), and 2080Tis on one x8 and x4.

Will this work? (If not work, I could sell one 2080Ti..

 

[jaslion]

It should be possible but it will most likely go in x8 x4 x4 mode for the gpu's. Cuda works any time. Since you have it why not just try?

[OldFord76]

Should be fine, if it doesn't work just sell the extra like you said. 

[Kilrah]

The top 2 will run at x8 from CPU, the 3rd will run at x4 from chipset.

[A random asian guy]

7 minutes ago, jaslion said:

It should be possible but it will most likely go in x8 x4 x4 mode for the gpu's. Cuda works any time. Since you have it why not just try?

I need one more gpu cable and it is shipping so I cannot try it now...

Thanks for the reply!

[A random asian guy]

35 minutes ago, Kilrah said:

The top 2 will run at x8 from CPU, the 3rd will run at x4 from chipset.

Thanks for your reply! Also, I am curious whether 1300w would be sufficient? 

[Moonzy]

14 minutes ago, A random asian guy said:

Thanks for your reply! Also, I am curious whether 1300w would be sufficient? 

Should be fine

[jaslion]

2 hours ago, A random asian guy said:

Thanks for your reply! Also, I am curious whether 1300w would be sufficient? 

What psu? If it's a good one yeah the 2080ti's are very efficient cards for what they offer.

[A random asian guy]

3 hours ago, jaslion said:

What psu? If it's a good one yeah the 2080ti's are very efficient cards for what they offer.

It's 1300W Seasonic Gold

[jaslion]

9 hours ago, A random asian guy said:

It's 1300W Seasonic Gold

Since when do you have it? Pre 2018 units kinda do not like the rtx3000 series and will trigger their overcurrent protection falsely.

[A random asian guy]

7 hours ago, jaslion said:

Since when do you have it? Pre 2018 units kinda do not like the rtx3000 series and will trigger their overcurrent protection falsely.

Emm, the power supply is relative new, got it this year

[jaslion]

20 hours ago, A random asian guy said:

Emm, the power supply is relative new, got it this year

Oh ok then you have the newer ones which are totally fine.