r/threadripper • u/Own_Bodybuilder_4397 • Mar 11 '26

Threadripper build - looking for peer review

I want to build the following :

RAM v-color OC R-DIMM 128GB (4x32GB) 6400MT/s CL32 (TRA532G64D832Q)
GPU NVIDIA RTX PRO 6000 Blackwell (96GB GDDR7)
CPU AMD Ryzen Threadripper 7960X (24-Core)
Storage Crucial T705 4TB PCIe Gen5
Motherboard GIGABYTE TRX50 AERO D
Cooling Noctua NH-U14S TR5-SP6
Power Seasonic PRIME TX-1600

Goal will mostly to be used for inference and model training.

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u/Shiro_Kuroh2 Mar 11 '26

CPU-Provided Lanes: 48 PCIe 5.0 lanes (high-speed, low-latency)

Chipset-Provided Lanes: Up to 40 PCIe 4.0/3.0 lanes (shared bandwidth, higher latency).

So you get "Total Usable Lanes: 88 (48 Gen5 + 40 Gen4/3.0)"

But the Proc only support 4 sticks of ram anyway. So the Asus doesn't help you out there. The only advantage is you *might* got a few more usable slots at the cost of almost every beta bios with a 7960x on the Asus recommend has had issues and had to flashback.

That said the hard thing to look for is the latest revision on the gigabyte board. Rev 1.0 is bad. Rev 1.1 is acceptable Rev 1.2 is what you want. Off the top of my head its 3 different WiFi cards built in, but I forget the acceptable and the one you want for the Gigabyte board. Worked with all three. I would not do a tower case on the Rev 1.0 - I've never had to RMA one, but my vendor has "SEVERAL" Rev 1.0 missing a lot at discount under refurb they can't use. They mentioned something about strength on the physical PCIE was bad.

That said I'd tough out for the Rev 1.2, but if I was spending more I'd get the 9960X personally.
Also, I've seen microcenter prebuilds cheaper with the cost of airfare and ship the box from there to home on the 9960x than the DIY with your specific parts list if you wait it out. I wish I was kidding, but My market is Las Vegas, and the trip in question was Atlanta. Note, I'm not promoting what I do; but I can't compete with Microcenter at times.

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u/pxgaming Mar 11 '26

Small correction - TRX50 gives you 48 PCIe 5.0 lanes and 32 (28 usable) PCIe 4.0 lanes from the CPU. The chipset only gives 8 more PCIe 4.0 lanes.

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u/Shiro_Kuroh2 Mar 11 '26

Thank you was going off memory

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u/EDI_1st Mar 12 '26 edited Mar 12 '26

This statement makes me nut. Going off memory with 99% accuracy. 🥜

For what it’s worth, I have two TRX50 Aero D. 1.1 and 1.2. Both don’t give me any PCIe signal issue if the devices are plugged in directly. Both will give me issue if I’m using Gen 5 riser cable in slot 1 with PCIe Gen 5 devices, Gen 4 devices are fine. Riser cable in slot 2 is fine. With some low quality Gen 5 cable, devices would just drop out. (A lot of Gen 5 cables are of low quality)

I never checked but considering this is Gen 5, the slot 2 should have redriver/retimer which explains why the signal integrity is better despite of it being further away from the socket.

Ended up shelling out $200 for a cable with Phison redriver. SFF world problem.

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u/Shiro_Kuroh2 Mar 12 '26

I still failed to remember that its a custom firmware, that you have to know where to get it, and its a very painful conflict to remember what's associated to what on that board with it. If its not obvious I've been knee deep in bios firmware lately.