CyberPulsTech — Consumer Tech, PC Hardware, Local AI & Home Lab Insights

AI
Prompt Caching in Local LLMs (vLLM, LMDeploy & Ollama) in 2026: Prefix Caching Architecture, Time-to-First-Token (TTFT) Benchmarks & VRAM Overhead
In multi-turn local LLM inference and agentic Retrieval-Augmented Generation (RAG),...
AI
KV Cache Quantization in 2026: FP8 vs. INT4 in vLLM & SGLang (Slashing LLM VRAM Usage Without Perplexity Degradation)
When serving modern large language models like Llama-3.3-70B, Qwen-2.5-72B, and...
Computing
Intel X520 vs. Mellanox ConnectX-4 Lx in 2026: The Budget 10G/25G SFP28 Guide for Proxmox & TrueNAS (DAC vs. Fiber, C-States & Latency)
For home lab engineers, Proxmox VE cluster builders, and TrueNAS...
Computing
M.2 SSD Thermal Pad Thickness Guide in 2026: 0.5mm vs. 1.0mm vs. 1.5mm, Thermal Putty & Contact Pressure Benchmarks
Selecting the incorrect thermal pad thickness for an M.2 NVMe...
AI
Running DeepSeek-R1 671B Locally in 2026: KTransformers CPU Offloading, 256GB DDR5 RAM Sizing & Single RTX 4090 VRAM Allocation
Until recently, running a flagship 671-billion parameter frontier reasoning model...
Hardware
Mellanox ConnectX-4 & ConnectX-5 100GbE SR-IOV in Proxmox VE: Virtual Functions, RoCEv2 Offloads & Line-Rate 100Gbps VM Networking in 2026
Standard Linux software bridging (vmbr0) has hit an impenetrable physical...
Guides
ZFS ARC Memory Sizing in Proxmox VE: zfs_arc_max Calculations, Dirty Data Flush Tuning & How to Stop Linux OOM Kills in 2026
If you run ZFS on Proxmox VE without explicit kernel...
Guides
Proxmox VE 8.3 Ceph Quincy vs. Reef Performance Tuning: 100GbE RoCEv2, NVMe-oF & BlueStore Cache Optimization for High-Density Clusters (2026)
In enterprise data centers and high-density prosumer home labs, Proxmox...
AI
Dual RTX 3090 (48GB) vs. Single RTX 4090 (24GB) for DeepSeek-R1 70B: VRAM Pooling, PCIe Bifurcation & Tokens/Sec Economics (2026)
Executive Engineering Summary: For running heavy reasoning models like DeepSeek-R1...
AI
Prompt Caching in Local LLMs (vLLM, LMDeploy & Ollama) in 2026: Prefix Caching Architecture, Time-to-First-Token (TTFT) Benchmarks & VRAM Overhead
Prompt Caching in Local LLMs (vLLM, LMDeploy &...
In multi-turn local LLM inference...
AI
KV Cache Quantization in 2026: FP8 vs. INT4 in vLLM & SGLang (Slashing LLM VRAM Usage Without Perplexity Degradation)
KV Cache Quantization in 2026: FP8 vs. INT4...
When serving modern large language...
Computing
Intel X520 vs. Mellanox ConnectX-4 Lx in 2026: The Budget 10G/25G SFP28 Guide for Proxmox & TrueNAS (DAC vs. Fiber, C-States & Latency)
Intel X520 vs. Mellanox ConnectX-4 Lx in 2026:...
For home lab engineers, Proxmox...
Computing
M.2 SSD Thermal Pad Thickness Guide in 2026: 0.5mm vs. 1.0mm vs. 1.5mm, Thermal Putty & Contact Pressure Benchmarks
M.2 SSD Thermal Pad Thickness Guide in 2026:...
Selecting the incorrect thermal pad...
AI
Running DeepSeek-R1 671B Locally in 2026: KTransformers CPU Offloading, 256GB DDR5 RAM Sizing & Single RTX 4090 VRAM Allocation
Running DeepSeek-R1 671B Locally in 2026: KTransformers CPU...
Until recently, running a flagship...
Hardware
Mellanox ConnectX-4 & ConnectX-5 100GbE SR-IOV in Proxmox VE: Virtual Functions, RoCEv2 Offloads & Line-Rate 100Gbps VM Networking in 2026
Mellanox ConnectX-4 & ConnectX-5 100GbE SR-IOV in Proxmox...
Standard Linux software bridging (vmbr0)...
Guides
ZFS ARC Memory Sizing in Proxmox VE: zfs_arc_max Calculations, Dirty Data Flush Tuning & How to Stop Linux OOM Kills in 2026
ZFS ARC Memory Sizing in Proxmox VE: zfs_arc_max...
If you run ZFS on...
Guides
Proxmox VE 8.3 Ceph Quincy vs. Reef Performance Tuning: 100GbE RoCEv2, NVMe-oF & BlueStore Cache Optimization for High-Density Clusters (2026)
Proxmox VE 8.3 Ceph Quincy vs. Reef Performance...
In enterprise data centers and...
AI
Dual RTX 3090 (48GB) vs. Single RTX 4090 (24GB) for DeepSeek-R1 70B: VRAM Pooling, PCIe Bifurcation & Tokens/Sec Economics (2026)
Dual RTX 3090 (48GB) vs. Single RTX 4090...
Executive Engineering Summary: For running...