A budget build for local AI code completion with a 14B model, plus dev environments.
Recommended build
Architecture: tower build on LGA 1700 + Intel Z790
≈ €1,372
Total
Assessmentbalanced
cpu
10C/16T · 4.7 GHz · LGA 1700 · 65 W
motherboard
Intel Z790 · ATX · 3× M.2
ram
128 GB DDR4 · 3200 MT/s
case
ATX/MATX/ITX · 2× 3.5″
cooling
passive · 150 W TDP
psu
650 W · platinum · modular
storage
NVME · 8 TB
gpu
12 GB VRAM · 70 W · CUDA
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Based on your goals you need roughly 12 CPU threads, 56GB RAM and 3TB of storage with ai GPU capability. This system runs 24/7, so energy matters. Recommended: the Value build — most for your money — 1372€ purchase, ~51W idle, ~221€/year energy (≈664€ over 3 years). Intel Core i5 14400F: 16 threads covers the 12 needed with headroom. Motherboard Intel Z790 (LGA 1700): matches the CPU socket and case size. RAM: 128GB DDR4 — meets the 56GB the workload requires. Lenovo RTX A2000 Black 12GB GDDR6: 12GB VRAM selected for your ai GPU need. Chose Intel Core i5 14400F over AMD Ryzen 5 5600T OEM/Tray: better overall fit for your priorities. Build DNA: performance 83, value 85, efficiency 58, expandability 100, silence 95, longevity 100 — overall 85/100. Heads-up: Total (1372€) exceeds your budget (1100€) by 272€ (25%). Ranking already prefers in-budget variants — this one is shown for comparison; check the value variant or raise the budget. What limits you first: CPU. Alternatives: Smart build — best all-round — 3032€, DNA 84/100, balanced · Long-term build — expandable & future-proof — 3319€, DNA 88/100, balanced.
The system as a whole — before the shopping list.
The system as a whole — before the shopping list.
diy · tower build on LGA 1700 + Intel Z790
We split your build into the performance you need, the performance you're buying, and the performance you're likely to use day-to-day. When the gap is wide, you're overbuying.
BALANCED — the build is sized close to what the workload requires.
| Performance I need | Performance I buy | Likely to use | |
|---|---|---|---|
| CPU threads | 12 | 16 | 8 |
| RAMoverbuy | 56 | 128 | 40 |
| Storageoverbuy | 3 | 8 | 3 |
| GPU VRAM | 12 | 12 | 12 |
| Network | 2.5G | 1.0G | 1.0G |
What this means
An explainable future-proof score, the Homelab Risk Score, a final pre-purchase audit and what will become the limiting factor over time.
Strong future-proofing
Strong future-proofing (74/100) — this build should stay relevant for years without major surgery.
DIY build — the CPU, motherboard and PSU can each be upgraded independently without replacing the whole system.
Expansion headroom: 1 PCIe slot(s), 2 M.2, 4 SATA, 2 drive bay(s), 0 RAM slot(s) free.
Storage is 38% utilized with 2 free drive bay(s) and 4 free SATA port(s).
0 RAM slot(s) free; memory is 44% utilized.
Networking is 2500 Mbps, and a free PCIe slot can add a faster NIC later.
ATX form factor with standard, socketed components — most parts are easy to replace.
A 12GB GPU is present — AI and transcoding workloads are covered.
Moderate risk
Moderate risk (37/100) — a few items are worth fixing before you commit (see checklist).
Single point of failure
Risk: criticalAll data sits on a single drive with no redundancy — one failure means total loss.
Fix: Add at least a mirror (RAID 1/ZFS mirror) for irreplaceable data, or an additional parity drive for larger arrays.
Storage risk
Risk: lowSolid-state storage — no moving parts, low mechanical failure risk.
Fix: For an always-on system, prefer NAS/CMR-rated drives; monitor SMART and replace before the warranty ends.
Data loss risk
Risk: high1 drive(s) with no redundancy — a single SSD/controller failure can still lose data.
Fix: Add redundancy and an off-site/off-box backup for anything irreplaceable.
Power risk
Risk: lowPSU is 650W, peak load 193W (30%).
Fix: PSU sizing leaves healthy headroom for spikes and future parts.
Network risk
Risk: lowSingle 2500 Mbps NIC — a switch/port failure takes the box fully offline, and multi-user media can saturate 2500 Mbps.
Fix: Consider a second NIC or a managed switch; for heavy media, plan for 2.5/10G before the build.
Expansion risk
Risk: low1 PCIe, 2 M.2, 4 SATA, 2 bays free.
Fix: Healthy room for future drives, NICs and accelerators.
Upgrade risk
Risk: low2024 platform — current generation with a forward-looking socket/feature set.
Fix: Buy for the workload, not the socket — upgrade paths are a bonus, not a guarantee.
Audit found 2 critical and 0 warning item(s) worth fixing before you buy.
Check the balance
CriticalTotal (1372€) exceeds your budget (1100€) by 272€ (25%). Ranking already prefers in-budget variants — this one is shown for comparison; check the value variant or raise the budget.
Action: Reconsider the config for the stated workload or budget before buying.
Category: balance
No storage redundancy
Critical1 drive(s) with no mirror or parity for the data you plan to store.
Action: Add at least a mirror for irreplaceable data before you migrate anything.
Category: storage
Keep a backup off-box
OptionalRedundancy inside the box does not survive fire, theft or a whole-array fault.
Action: Mirror the important data to an external drive, a second box, or cloud.
Category: storage
More VRAM for AI
OptionalLocal AI/inference benefits strongly from 16GB+ VRAM.
Action: Consider a higher-VRAM GPU if AI is a serious goal.
Category: ai
Drive bays remain
Future2 drive bay(s) free for future capacity.
Action: Expand capacity in pairs (mirror/parity) when needed.
Category: storage
PCIe slot available
Future1 free PCIe slot(s) for a NIC, HBA or GPU later.
Action: Use it for a 10G NIC, extra HBA, or an accelerator when the need appears.
Category: expansion
Nothing obvious becomes a limiting factor in the near term — this build should age well.
CPU is the closest to its limit (75% of capacity in use) — it will likely force the next upgrade.
Runner-up variants the engine generated for the same scenario — tap one to see its parts.
tower build on LGA 1851 + Intel B860 · Idle 54 W · balanced
≈ €3,032
| Role | Component | Qty | Price | Buy |
|---|---|---|---|---|
| cpu | Intel Core Ultra 7 265 | 1 | €373 | … |
| motherboard | Asus B860 PRIME B860M-A LGA1851 DDR5 Micro ATX | 1 | €189 | … |
| ram | TEAMGROUP T-FORCE DELTA RGB DDR5-6400 96GB (2x48GB) CL30 Black | 1 | ≈ €322 | … |
| case | Fractal Design Meshify C ATX Mid Tower Black | 1 | €94 | … |
| cooling | Thermalright Le Grand Macho Air 159mm Fanless | 1 | ≈ €35 | … |
| psu | Mistel MX650 Black FANLESS ATX 650W Fully Modular 80+ Platinum | 1 | ≈ €97 | … |
| storage | Rocket Q NVMe SSD | 1 | €122 | … |
| gpu | NVIDIA RTX PRO 4000 Blackwell 24GB | 1 | ≈ €1,800 | … |
| Total: | ≈ €3,032 | |||
tower build on LGA 1851 + Intel B860 · Idle 63 W · balanced
≈ €3,319
| Role | Component | Qty | Price | Buy |
|---|---|---|---|---|
| cpu | Intel Core Ultra 7 270K Plus | 1 | €474 | … |
| motherboard | Asus B860 PRIME B860M-A LGA1851 DDR5 Micro ATX | 1 | €189 | … |
| ram | TEAMGROUP T-FORCE DELTA RGB DDR5-6400 96GB (2x48GB) CL30 Black | 1 | ≈ €322 | … |
| case | Fractal Design Meshify C ATX Mid Tower Black | 1 | €94 | … |
| cooling | Thermalright Le Grand Macho Air 159mm Fanless | 1 | ≈ €35 | … |
| psu | SeaSonic PRIME Fanless Black 700W Fully Modular 80+ Titanium Certified | 1 | €283 | … |
| storage | Rocket Q NVMe SSD | 1 | €122 | … |
| gpu | NVIDIA RTX PRO 4000 Blackwell 24GB | 1 | ≈ €1,800 | … |
| Total: | ≈ €3,319 | |||
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