Support for bifurcation analysis

GreenLightFabi
Senior Member

696

06-21-2019, 11:02 AM

I've located an ITX X570 board that allows splitting the x16 port into four x4 ports. The Ryzen 3 3200G can handle this configuration, so you don't need to upgrade your processor.

GreenLightFabi

06-21-2019, 11:02 AM #1

I've located an ITX X570 board that allows splitting the x16 port into four x4 ports. The Ryzen 3 3200G can handle this configuration, so you don't need to upgrade your processor.

SynneK
Member

185

06-21-2019, 03:49 PM

3200G can handle only up to x8, meaning the highest version you'd likely achieve is x4/x4.

SynneK

06-21-2019, 03:49 PM #2

3200G can handle only up to x8, meaning the highest version you'd likely achieve is x4/x4.

Johnny47751
Junior Member

06-23-2019, 04:19 PM

Well, your choices are quite narrow for a screen setup. You might find the Ryzen Pro 4000 series APU appealing, though availability can be tricky in certain regions. Also, it’s unclear if it handles the X4X4X4 requirement smoothly.

Johnny47751

06-23-2019, 04:19 PM #3

seantr02
Junior Member

07-13-2019, 08:28 PM

Check for AM4 APUs that allow x4x4x4x4 bifurcation.

seantr02

07-13-2019, 08:28 PM #4

Check for AM4 APUs that allow x4x4x4x4 bifurcation.

Phantaah
Junior Member

07-13-2019, 09:18 PM

Generally, I don't believe that: the remaining x8 is allocated to the iGPU, which means it's unlikely to be a single unit without expanding the PCIe lane capacity on the IO die.

Phantaah

07-13-2019, 09:18 PM #5

Generally, I don't believe that: the remaining x8 is allocated to the iGPU, which means it's unlikely to be a single unit without expanding the PCIe lane capacity on the IO die.

HorseTamerr
Junior Member

07-14-2019, 05:33 AM

I faced the same problem before. My current Intel Xeon E5-2690v2 is outdated, so I’m considering swapping it for a Ryzen APU. However, finding a Ryzen 7 Pro 4750G is really challenging right now. Chinese sellers are charging over $500 for it. I’ve chosen to pause the project and keep using the older Xeon until the CPU market recovers.

HorseTamerr

07-14-2019, 05:33 AM #6

GiLLPY
Junior Member

07-14-2019, 09:22 AM

For clarity, the GPU in an AMD APU links through the Infinity Fabric and doesn't rely on PCIe lanes. This seems separate from the APU 4x4 split problem. Refer to my earlier update: https://community.amd.com/t5/processors/...293#M51798

GiLLPY

07-14-2019, 09:22 AM #7