GRITSYSTEMS
GRIT Systems · Hardware

Custom PCs & local-AI workstations, built to order.

Spec it below and watch the price update live in naira. We source the parts, assemble, burn-in and warranty the machine. Need it sooner? Grab a tested, reconditioned GPU or laptop.

Configure a buildShop reconditioned
● NGN pricing, USD estimate● Assembled in Nigeria● Tested + warrantied● Tuned for local AI
GPUCPU

High-VRAM rigs for running open models (Llama, Mixtral, Qwen) locally — no cloud, your data stays put.

Build to order

Start from a preset or build from scratch. Live quote = components + assembly/burn-in + a margin that covers QA and your warranty.

More cores help compilation, virtualization and CPU inference.

VRAM is the #1 constraint for running local LLMs. Bigger VRAM = bigger models.

Headroom for big context windows, VMs, datasets and CPU-offloaded layers.

Fast NVMe for model weights and datasets.

Determines PCIe lanes, RAM ceiling and multi-GPU support.

Headroom matters — high-VRAM and multi-GPU rigs pull a lot.

Airflow + space for big GPUs and radiators.

Keeps clocks high and sustained AI workloads stable.

Your build
Components₦1,510,000
Assembly + 12h burn-in₦65,000
Margin + warranty₦151,000
₦1,726,000
≈ $1,151 at ₦1,500/$
8GB GPU VRAM

Runs 7B-13B models locally (quantized).

Reconditioned & ex-demo

Reconditioned GPUs, laptops and desktops — every unit tested, graded and warrantied. The tested + warranty difference is the whole point: you know exactly what you are buying.

How we recondition — and back it

Tested + warrantied

Most used gear here is sold as-is. Ours is not. Every reconditioned GPU, laptop and desktop goes through the same process, is graded honestly, and ships with a shop warranty — so you see exactly what you are paying for.

  1. 1Intake & diagnostics

    Every unit is logged and fully diagnosed — we map exactly what is worn before any work starts.

  2. 2Deep clean + fresh thermals

    Strip-down clean, new thermal paste and pads. New fan or battery fitted if worn.

  3. 3Component fixes

    Repair/replace as needed: SSD/RAM, ports, and board recap where required.

  4. 4Stress-test

    Burned-in for stability, thermals and (for GPUs) artifact-free output under sustained load.

  5. 5Wipe + fresh OS

    Securely wiped, then a clean OS and current drivers installed.

  6. 6Graded & warrantied

    Graded A/B/C for cosmetic condition and sold with a GRIT shop warranty.

Grade A — like new, no cosmetic defectsGrade B — light cosmetic wearGrade C — visible wear, fully functional30–90 day shop warranty
LAPTOP
Lenovo ThinkPad P15 Mobile Workstation — Ex-demo
Grade AEx-demo

Lenovo ThinkPad P15 Mobile Workstation — Ex-demo

Xeon + RTX A4000, 64GB ECC. Battery replaced, fresh OS. Ideal mobile dev/AI rig.

  • CPUIntel Xeon W-10885M
  • GPURTX A4000 8GB
  • RAM / SSD64GB ECC / 2TB NVMe
  • BatteryReplaced (new)
90-day warrantyTested + wiped
₦1,650,000
≈ $1,100
GPU
NVIDIA RTX 3090 24GB — Reconditioned
Grade AReconditioned

NVIDIA RTX 3090 24GB — Reconditioned

24GB VRAM — a local-inference workhorse. Repasted, new thermal pads, stress-tested for thermals + artifacts.

  • VRAM24GB GDDR6X
  • TestedFurmark + memory artifact scan, 2h
  • ThermalsRepaste + new pads, max 71C
  • GradeA — no cosmetic defects
90-day warrantyTested + wiped
₦1,250,000
≈ $833
LAPTOP
Dell XPS 15 (i7, 32GB) — Reconditioned
Grade BReconditioned

Dell XPS 15 (i7, 32GB) — Reconditioned

Slim creator laptop. New battery + thermal service, fresh Windows 11 + drivers.

  • CPUIntel Core i7-11800H
  • RAM / SSD32GB / 1TB NVMe
  • Display15.6 inch 3.5K OLED
  • BatteryReplaced (new)
30-day warrantyTested + wiped
₦950,000
≈ $633
DESKTOP
GRIT Reconditioned Starter Desktop (Ryzen 5)
Grade BReconditioned

GRIT Reconditioned Starter Desktop (Ryzen 5)

Ready-to-run desktop reassembled from tested parts. Burned-in, wiped, fresh OS.

  • CPURyzen 5 5600
  • GPUGTX 1660 Super 6GB
  • RAM / SSD32GB / 1TB NVMe
  • Burn-in12h stability pass
30-day warrantyTested + wiped
₦520,000
≈ $347
GPU
NVIDIA RTX 3060 12GB — Reconditioned
Grade BReconditioned

NVIDIA RTX 3060 12GB — Reconditioned

12GB VRAM — great value entry card for 7B/13B local models and 1440p gaming. New fans fitted.

  • VRAM12GB GDDR6
  • TestedStability + artifact scan, 1h
  • ServiceNew fans, repaste
  • GradeB — light cosmetic wear
90-day warrantyTested + wiped
₦360,000
≈ $240