[RESPONDED] AMD Batch 1 Guild

from testing different thunderbolt docks under linux (another story…), at least linux displays the 40Gbps speed, with 2 rx/tx lanes each at 20GBPs (iirc…) for two out of three docks. I assume the third one just doesn’t do the 40…

@Arjun_Swamy
I’m getting ~1890 MiB/s with a Ryzen 7, RTX 3070 with Sonnet 750 eGPU box.


What concerns me is that during video conversion, my speeds are less now that with my frame.work 12th gen (i7-1280P) with the same eGPU.

Thank you so much, folks! I went ahead with CT2K48G56C46S5 kit, and 96G is working nice here. Got it running with debian sid (with video acceleration off though).

Has anyone attempted applying PTM7950 to their Ryzen boards? I got some delivering today, but the thermal performance out of the box is pretty good. With a 20 W + 75° C limit it rarely goes over 70°. Just would like to bump that to the OOB 28 W limit without thermal issues.*

*Above 80° C is an issue in my book, despite what things are rated for.

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I’m not going to bother repasting/applying different thermal compound anytime soon because the Ryzen board runs quiet most of the time which is my main concern. However, the Intel board in the Cooler Master case has that characteristic high pitch fan whine frequently when it use, so I might consider it for that board.

Yup, I did it a week ago. Idle temps aren’t too different(as expected of the material) at 40°, but at full load I’ve seen the chip draw a max of 38W and it only hit 80°.

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Holy crap, that is nuts! I was expecting an improvement, but not that much of one.

Did you use it as paste or a pad?

@nasi I used a pad

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Hmm that’s a lot lower than the 2200-2400 you should be getting. Aside from the usual tips of disabling link state management and using the stock cable, I’m not sure what else I can suggest. Would def recommend checking the egpu.io forums and see if there any other similar cases with your Sonnet box.

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@Danny_Goff, In addition to be above, and if you have one lying around, you can try with an active cable. Most eGPU enclosures and docks come with short, < 1m passive cables. They can work just fine for their length but doesn’t hurt to try an active cable which will help maintain signal integrity.

If you don’t have one, they can be quite expensive, especially if Intel TB certified, so not much point in buying one just for the experiment, unless you have use for it.

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The high pitch whine is due to the fan cutout on the case resonating with the cooling fan.

Yes, though presumably getting the fan to run at lower speeds / less frequently should ameliorate the issue to an extent… I notice immediately that the Ryzen board is much quieter in my machine than the Intel board ever was. Just a warning to anyone planning the Cooler Master swap that the noise is quite noticeable in a quiet room.

I was thinking about dremeling out the fan cutout and just having a giant hole, but the case is too beautiful for me to do that.

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I received my Zen 4 board almost a week ago now but I’m just now getting Crucial RAM for it, so I’ll be enjoying the upgrade shortly.

Okay. So I figured out the standalone mode situation, and you are going to really hate the answer, since it makes using it as a server much more…irksome.

a) The red/blue LED blinkies will persist for at least 3-5 minutes until it stabilizes and turn white, in which case the HDMI expansion port will activate. I am not sure what the board was doing at this time.

b) The USB-C power injection must, MUST be on the front 2 ports (the ones on the left/right closer to the bottom when held vertically), and you really should have a 100w USB-PD adapter to push power onto the board. The 65w will work…eventually, but not until a ridiculous amount of time elapsed, and you will be staring at the red/blue lights for quite a while until “something” happens.

c) I can’t seem to disable secureBoot or disable its enforcement (which is a feature on the 11th/12th Gen Intel boards), so any SSD that was not configured for Secureboot…simply won’t boot (so a drive I configured using the 12th gen Intel board for Proxmox 7.3 simply refuses to boot)
d) No options to control AMD-V or AMD-Vi, you can’t define the iGPU system RAM reservation size (its auto or game optimized, and I am not sure what that means)

Also, since standalone mode does not guarantee a display (it won’t be using the eDP port), it’s possible for the board to boot up to a state where you have no working display, and if you use a USB-C adapter with passthrough power, it does not seem to instantiate any connected HDMI port. This is much less refined than the behavior on both my 11th Gen and 12th Gen Intel boards.

Eh, so yeah, you almost certainly will need a Framework laptop chassis to configure it to work as a standalone mini-server on day 1, and to be honest, if you are going to have a Phoenix mini-server, you are probably better off with something like a Minisforum UM790 Pro. At least getting it to load the software that you need would likely be much less painful than it is at the current moment and you’ll likely pay less for the machine.

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Just applied some PTM7950. I’m not sure if this stuff is magic or what, but prior I had to limit APU power to 20 W to keep temps under 70° C. Now it’s happily running Prime95 small FFTs and Furmark at a constant 28 W with a max temp of 69° (nice). Saw the same behavior running just Prime95 on its own, so the CPU was guzzling all 28 W.

And this is just me starting run #1 of the settling process. I’ll try single thread once the pad is sufficiently “cured.”

EDIT: Heat cycle #2, just P95 this time. Fan took a while to ramp up, allowing temps up to 74° C before cooling back down under 70. Holding steady there again. Not gonna do a play-by-play, but it was an interesting behavior. Perhaps the fan started high on run #1 due to a hotspot somewhere that’s now “filled in” as the pad expanded.

EDIT 2: After about 2 hours of heat cycling, all-core loads still float around 70° C, GPU loads end up around 65°, and combined end up just under 70° together. 1T Prime95 ended up quickly bringing temps over 90, but now all I think the chip needs is a temp limit. Anything needing all 28 W will spread the heat out enough for the pad to quickly soak it up into the heatsink.

Just need Framework to add temp/PPT limit options in the BIOS. Desktop Zen has had these controls exposed forever, but on mobile for some reason it’s only possible with 3rd party programs (the Linux versions of which need secure boot disabled).

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even though i doubt it, but just in case you missed it: the secure boot settings are not in the “bios” settings, but an extra menu option in the “overview” menu… cost me some time/googling as well.

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It took me a good hour before I realized this. During that time I had hunted down a USB to install Ubuntu directly on to (because I couldn’t use my Ventoy USB) and in general had gotten started installing the OS when I realized that I had missed the separate option.

I know nobody here can do anything about this and it’s not Framework’s fault, I’m just whining- my upgrade kit seems to have gotten lost at Fedex’s Memphis hub. It’s been stuck as “Pending” there for almost a full week now. I’m going to try having someone I know who works for Fedex check up on it.

At least I can let others hammer out the issues! </cope>

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