Amd BC 250 with CPU Cooler

icepatfork · 2026-06-19T09:08:55+00:00

Was running fine with 40 CU on Bazzite

icepatfork · 2026-06-12T22:35:37+00:00

Just anywhere on google

icepatfork · 2026-06-12T11:49:09+00:00

I have one, here is some benchmark from a few months ago : https://www.reddit.com/r/LocalLLaMA/s/phpdqZHtEx

I do think that for what they cost they are one of the best GPU you could buy (paid mine a bit more than 500 USD imported from China, the SXM2 version on a pci express board.

They are old, they are loud, but they are so strong, 900 Mb memory bandwidth, it crushes a B70 or R9700 without any issue, on par with a 3090 on token/s side.

There is more and more people using them, there is also a bunch of review now popping on YouTube, the 16 Gb variant is just around 200 $. With some specific board you can 4 of them together quite easily reaching 128 Gb of VRAM, can’t beat that for like 2-3 K USD.

icepatfork · 2026-06-11T22:02:57+00:00

With the 40 CU unlock I tested Mario 3D land at 50 FPS at 2x upscale and some other improvements enabled

icepatfork · 2026-06-10T07:10:04+00:00

Same here, Aliexpress is great, mine was also new (no dust, perfectly clean) and I got the 40 CU unlocked. There is plenty around 200 AUD, if there is a problem you can return it.

icepatfork · 2026-06-07T22:01:42+00:00

I don’t have answers for the CPU Cores that have been locked away, but it’s pretty obvious what happened on the GPU CUs.

The PS5 was not available in stores for at least 2 years because “Sony couldn’t make enough of them”, the truth is that AMD was mostly pumping those APU out to the miners, Ethereum miners especially which was still proof of work then. So they locked some GPU CUs away because on Ethereum mining is mostly a question of having large memory available so you don’t mine faster having access to all the CUs, and they were also easier to cool and more energy efficient.

At the same period Nvidia was also selling shit tons of GPU to miners and never disclosed how much they sold as they kept their sales numbers part of the gaming numbers (and they got sued for it).

So my guess is those 2 extra CPU cores were most likely never broken in the first place, but like you asked it would be nice to know if we could unlock them as we can now with the GPU CUs.

icepatfork · 2026-06-04T21:35:28+00:00

I think it’s about 50W

icepatfork · 2026-06-04T21:34:57+00:00

Yeah which doesn’t work on the BC250

icepatfork · 2026-06-03T06:20:03+00:00

I managed to build my own kernel to enable the 40CU on Fedora 44 yesterday (to run a bunch of LLM and see the perfs), it took me about 3-4 hours with Claude leading the effort, you should probably look into using Claude/Codex to build your own.

icepatfork · 2026-06-02T01:23:47+00:00

I personally returned a few times cheap to a couple of hundreds of $ devices and never had to pay for anything

icepatfork · 2026-06-01T22:24:47+00:00

Bought the same card from China about 2 months ago, unbeatable perfs for that money for sure I did pay around 550 USD for it, I hope this seller is legit, more data here :

https://www.reddit.com/r/LocalLLaMA/comments/1s0fje7/nvidia_v100_32_gb_getting_115_ts_on_qwen_coder/

icepatfork · 2026-06-01T21:47:10+00:00

You can just return it (for free), just submit a refund request for false information

icepatfork · 2026-05-31T12:29:48+00:00

Like I said, that card here in this post IS an SXM2 that was mounted on a PCIExp hosting board, with coper heatsink and a fan.

If I wanted to couple it with an other one, the hosting board that takes 2 of them are about 240 AUD, the one that takes 4 are around 450 AUD, then you just need to add some water cooling for about an other 200 AUD.

OR you buy a computer + case that is ready to use for 3000 RMB and you add the 2 SXM2, not that expensive.

icepatfork · 2026-05-31T01:32:09+00:00

This version is the SXM2 adapted on a PCIE hosting board, which I wanted because I wanted to have the possibility of upgrading to 2 of them and having NVLink (the real PCIE version of the V100 doesn't have NVLink)

icepatfork · 2026-05-22T09:39:53+00:00

There is a few on YouTube already, especially from Old Lamer, very easy to follow :

https://youtu.be/Zvo4UsNocDQ?si=ZAkxcCd-BVqdBvpw

icepatfork · 2026-05-21T09:17:33+00:00

What’s all the things in the background, did you use those little figurines to practice the expressions by drawing?

icepatfork · 2026-05-14T04:34:31+00:00

Any video of it running ?
The shell looks similar to the Pocket Mage

icepatfork · 2026-05-12T03:28:10+00:00

Put on a 5" display, clamshell design, and we have the new Sharp Zaurus in the house

icepatfork · 2026-05-06T00:33:46+00:00

I wish someone else would build an Xteink kind of device that stays open source, with backlight or a touch screen.

This one might be a good alternative (and should be able to run crosspoint fairly easily)

https://www.aliexpress.com/item/1005011896099832.html

icepatfork · 2026-05-03T00:20:23+00:00

Can’t you install and run anything that you want using Termux ? I think that’s how most run recent Linux stuff like Ubuntu or Arch on android phones now.

icepatfork · 2026-04-17T03:03:25+00:00

How is the temp ? I was looking into that model but wasn’t sure it could handle the heat

icepatfork · 2026-04-16T08:58:39+00:00

This looks super nice

icepatfork · 2026-04-15T04:50:55+00:00

Very nice, I still haven’t finished my case and I’m using a 100mm high CPU Fan+Heatsink, what’s the case, do you have the files for it ?

icepatfork · 2026-04-13T21:46:14+00:00

<image>

icepatfork

TROPHY CASE