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

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...
Computing
Proxmox Backup Server (PBS) Deduplication Architecture: Fixed-Sized Chunking, Garbage Collection & RAM Sizing in 2026
Executive Engineering Summary: Unlike traditional file-level backup suites or RAM-devouring...
Computing
ATX 3.1 vs. ATX 3.0 Power Supplies: 12V-2×6 Cable Redesign, 600W Transient Excursions & How 12VHPWR Melting Was Fixed (2026)
Executive Engineering Summary: The introduction of the ATX 3.1 standard...
Computing
Ceph RBD Block Storage vs. CephFS in Proxmox VE: High-IOPS Virtual Disks, MDS Cache Tuning & Shared Clustered Storage (2026)
Executive Engineering Summary: In a Proxmox VE hyperconverged Ceph cluster,...
Gaming
4K 240Hz OLED vs. 1440p 360Hz Ultrawide (21:9): PPI Scaling, RTX 5080/4090 VRAM Demands & Competitive Latency in 2026
Executive Engineering Summary: Choosing between a 32-inch 4K (3840×2160) 240Hz...
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...
Computing
Proxmox Backup Server (PBS) Deduplication Architecture: Fixed-Sized Chunking, Garbage Collection & RAM Sizing in 2026
Proxmox Backup Server (PBS) Deduplication Architecture: Fixed-Sized Chunking,...
Executive Engineering Summary: Unlike traditional...
Computing
ATX 3.1 vs. ATX 3.0 Power Supplies: 12V-2×6 Cable Redesign, 600W Transient Excursions & How 12VHPWR Melting Was Fixed (2026)
ATX 3.1 vs. ATX 3.0 Power Supplies: 12V-2×6...
Executive Engineering Summary: The introduction...
Computing
Ceph RBD Block Storage vs. CephFS in Proxmox VE: High-IOPS Virtual Disks, MDS Cache Tuning & Shared Clustered Storage (2026)
Ceph RBD Block Storage vs. CephFS in Proxmox...
Executive Engineering Summary: In a...
Gaming
4K 240Hz OLED vs. 1440p 360Hz Ultrawide (21:9): PPI Scaling, RTX 5080/4090 VRAM Demands & Competitive Latency in 2026
4K 240Hz OLED vs. 1440p 360Hz Ultrawide (21:9):...
Executive Engineering Summary: Choosing between...