yzh 发表于 2025-8-12 20:19
4090的价格23500/台？9654的价格15700/个？为啥你的配件价格这么贵？

差不多吧，从商家那里拿加上税点差不多要这个钱。商家管用伎俩了

yzh 发表于 2025-8-12 20:19
4090的价格23500/台？9654的价格15700/个？为啥你的配件价格这么贵？

我记得好像说是服务器版和普通桌面的不一样

4090的价格23500/台？9654的价格15700/个？为啥你的配件价格这么贵？

sun877469558 发表于 2025-7-13 19:05
请您过目一下，这个可以么？

这个配置不是专业的厂商配置的，一看就是拼凑出来的。长期稳定使用，建议找专业的服务商，他们的平台配置稳定可靠。

tonganlhy 发表于 2025-7-14 09:33
机箱太小，放不小两个显卡，要换大一点的。电源看看有没有2500W及以上的。cpu和显卡的tdp已经1600W，2000 ...

I agree with the suggestion to use turbo cards - they are loud but much smaller, taking up only two expansion card slots. Many of the RTX4090 cards take up more than 3 slots, which makes it very difficult to fit more than one of them in a case (or on the MZ73-LM1 board).

I would have thought a 2000W power supply would be enough, provided it is good quality. A titanium-rated 1600W PSU can handle a CPU at 850W and a single 4090 without problems.

I also note that I've actually never come across a workload that requires all 450W power draw on the 4090 - that includes 3D rendering in Blender, training/inferencing ML models (including LLMs), MD (GROMACS and OpenMM), and even the GPU stress test gpu_burn. I've only ever seen a maximum of about 350W on Ubuntu.

alanmei 发表于 2025-7-13 15:38
The frequency depends on the software. For different instructions, the same frequency CPU requires ...

Ah, yes, that is an important consideration. Actually I haven't used the 9654 system for any AVX512 workloads, so I hadn't had direct experience with that.

sun877469558 发表于 2025-7-13 19:02
http://sobereva.com/444

出自sob老师的5 顶级双路服务器推荐配置

我先后经手过8台 9654双路服务器,
不同批次处理器,
不同批次/不同品牌主板,

运行cp2k/vasp, 未观测到满负荷情况下, CPU核心可以持续3.55GHz稳定工作; 会在2.7 GHz到3.7 GHz之间来回跳动.

ADM自己写的技术术语是: All Core Boost Speed, 通俗理解为,瞬时(短时间)频率峰值可达....

sun877469558 发表于 2025-7-13 19:05
请您过目一下，这个可以么？

机箱太小，放不小两个显卡，要换大一点的。电源看看有没有2500W及以上的。cpu和显卡的tdp已经1600W，2000W的电源压不太住，牌子也换个好一点的，比如长城、振华等等。4090可以考虑用涡轮卡抽风。商家的维保要谈好。

David_R 发表于 2025-7-13 14:32
This motherboard has 4 PCI-e slots, but you can only fit single-slot devices side-by-side in them. ...

Thank you for your reply.

abin 发表于 2025-7-13 13:30
是哪位专家说的，
AMD 9654满载可以3.55GHz？

http://sobereva.com/444

出自sob老师的5 顶级双路服务器推荐配置

David_R 发表于 2025-7-13 14:28
Dual EPYC 9654 should have no problem maintaining max boost clock on all cores. My dual socket 9654Q ...

The frequency depends on the software. For different instructions, the same frequency CPU requires different power. For example, SSE is generally considered light-load, while AVX/AVX2 are considered heavy-load. For AVX512 of Zen4, it consumes almost the same power as AVX2.

sun877469558 发表于 2025-7-13 10:59
sob老师，

最终考虑了一下，还是觉得课题组使用的话，双路的可能会好点

This motherboard has 4 PCI-e slots, but you can only fit single-slot devices side-by-side in them. There is not an easy solution for installing four graphics cards: you'll need to use risers and install at least some of them externally. I expect that installing two GPUs is possible, provided that there is enough room in the case.

Indeed, adding GPUs will require a more powerful power supply, or perhaps a second one.

Dual EPYC 9654 should have no problem maintaining max boost clock on all cores. My dual socket 9654QS system runs continuously at 3.5 GHz all-core under load.