serverAppConfigs/serverAppConfigs-docs/LLM/Dankserver System Specs.md

type, title, description, tags, timestamp

type	title	description	tags	timestamp
configuration	Dankserver System Specs	Dankserver hardware and OS state since the 2026-09-20 board swap (ASUS ProArt B850-Creator WiFi NEO, 2x AMD Radeon AI PRO R9700 gfx1201 on CPU lanes x8/x8) serving frank-medium.	dankserver hardware r9700 gfx1201 rocm	2026-09-20

Dankserver System Specs

Server Overview

Dankserver is a media/library server and the frank-medium LLM host. The host runs Ubuntu 26.04 (Resolute Raccoon). The RTX 3090 that served the FreeToken/CUDA frank-zealot era was removed on 2026-09-15 and replaced with two AMD Radeon AI PRO R9700 cards.

Hardware Specifications

Motherboard

Property	Value
Board	ASUS ProArt B850-Creator WiFi NEO (Rev 1.xx) — swapped in 2026-09-20
Previous	ASUS TUF GAMING B650-E WIFI (card #2 was behind the chipset there; see Dual-R9700-Cooperation)
GPU lanes	CPU GPP ports bifurcated x8/x8 at Gen5: PCIEX16(G5)_1 → 00:01.1, PCIEX16(G5)_2 → 00:01.3; ~31.5 GB/s per card
Atomic routing	AtomicOpsCap: Routing+ on every bridge in both GPU chains, AtomicOpsCtl: ReqEn+ on both endpoints — the condition that ruled out TP=2 for the previous board
Free	PCIEX16(G4) (chipset, x4), M.2_2, M.2_3
Occupied M.2	M.2_1 — boot NVMe (Samsung PM9C1a, DRAM-less), trained x2 at Gen5 (63 Gb/s ≈ 7.9 GB/s)
Onboard	2x Realtek RTL8126 5GbE, RTL8922AE WiFi 7, PROM21 SATA controller

CPU

Property	Value
Architecture	x86_64
Vendor	AuthenticAMD
Model	AMD Ryzen 7 7700X
Cores	8 cores / 16 threads (1 socket) — SMT is on; the BIOS defaults reset with the board swap. llama.cpp still runs --threads 8 --threads-batch 8, so this is headroom, not a change in the serving shape
NUMA Nodes	1 (node 0)

GPUs

Property	Value
Model	2x AMD Radeon AI PRO R9700 (Navi 48, DID 0x7551, rev c0)
Architecture	gfx1201 (RDNA4)
VRAM	32,624 MiB each (rocm-smi reports 34,208,743,424 B per card)
Link	PCIe 5.0 x8 each (CPU GPP 00:01.1 / 00:01.3), no XGMI; separate IOMMU groups (15 and 20), ACS ReqRedir+ on both root ports, so P2P hairpins at the root complex
Atomic ops	Routing+ on all four bridges per chain; ReqEn+ on both endpoints (CAP_EXP+28.w = 0x1440)
PCI	03:00.0 and 07:00.0 (were 03:00.0 / 0b:00.0 on the B650-E)
iGPU	Raphael (gfx1036) at 11:00.0 — enumerates as ROCm device 2, hidden from HIP

The RTX 3090 is gone; stale nvidia-smi binaries and the disabled NVIDIA apt lists remain on disk but no NVIDIA PCI device exists.

Memory

Property	Value
System RAM	246 GiB (upgraded for the Lucebox DeepSeek deployment of 2026-09-26; this page said 60 GiB until 2026-09-28 — a stale figure that survived the board swap)
Swap	63 GiB (/swapfile)
/dev/shm	32 GiB

Storage

Filesystem	Size	Used	Avail	Use%
/ (nvme0n1p2)	1.8T	927G	~822G	~54%
/mnt/entropy (dm-0)	91T	87T	244G	100% — full; do not plan model payload here

Models live under /home/dank/models; the serving build tree under /home/dank/GitPackages/llama.cpp-dflash2 (the older charlie-ROCmFPX tree is still on disk), both sharing the self-contained ROCm 7.14 nightly toolchain under ~/.local/share/rocm-7.14.0a20260624 — which also carries librccl.so.1 and hipcc, so an RCCL-backed rebuild needs no new host packages.

Network

Interface	Type	Speed	IP	Notes
eno1	onboard RTL8126 5GbE	2500 Mb/s (negotiated)	192.168.0.235, static	LLM endpoint (port 7770). The address models.yml, Prometheus and Pi-hole all point at — preserved across the swap.
eno2	onboard RTL8126 5GbE, second port	2500 Mb/s	192.168.0.247, DHCP	New since the swap: cabled, and it took the lower-metric default route (101, against eno1's 102). Two live addresses and two default routes for one host — either declare it or bring the link down.
wlp14s0	WiFi 7 (RTL8922AE)	-	-	Renamed with the board (was wlp8s0); unused.

OS and Software

Property	Value
OS	Ubuntu 26.04 LTS (Resolute Raccoon)
Kernel	7.0.0-31-generic (iommu=pt)
Python	3.14.4
ROCm userspace	Ubuntu 7.1 packages in /usr (hipcc 7.1.1, rocminfo, rocm-smi 7.1.1)
Serving stack	mainline llama.cpp fb27a525 at ~/GitPackages/llama.cpp-dflash2/build-rdna4-rocm714, RPATH-bundled with the ROCm 7.14 nightly runtime

The stale AMD-repo ROCm 6.3.3 packages (167, ~24.04-suffixed) that used to hijack libhsa-runtime64 were purged on 2026-09-15 — see frank-medium-rocmfpx.

Active Services

The active inference service is frank-medium.service: mainline llama-server on port 7770, layer-split 32:33 across both R9700s with the DFlash2 drafter pinned to ROCm1. See frank-medium-llamacpp-dflash2. The former frank-zealot.service (FreeToken/CUDA) was retired with the 2026-09-15 GPU swap; its unit is archived in ~/.AGENTTRASH/20260915-frank-zealot-retire/host-units/, and the vllm-radiance replica trio in ~/.AGENTTRASH/20260916-vllm-radiance-retire/. See deployment.

Hardware Relevance

• 2x 32 GB VRAM: the 27.0 GiB Q8_0 checkpoint plus the 1.06 GiB DFlash2 drafter and the f16 KV pool for 327,680 tokens fit with the split at 32:33; live headroom is ~6.3 GiB on ROCm0 and ~5.2 GiB on ROCm1, which is why a batch or context change needs a re-fit and not a guess.
• 60 GB system RAM is mostly headroom; nothing in the serving path is CPU-resident.
• The iGPU is deliberately unused: HIP_VISIBLE_DEVICES=0,1 keeps work off the shared-memory Raphael device.

See Also

• frank-medium-llamacpp-dflash2 — the active serving runbook
• Dual-R9700-Cooperation — why the PCIe path matters, and what the swap changed
• deployment — the deploy flow
• Shared Memory Architecture Dankclaw — for contrast, Dankclaw's unified memory