Master Custom PC Tolerances & Component Compatibility
A dedicated technical sanity-checker for GPU dimensions, front AIO radiator thickness stack-ups, ATX 3.0 power excursions, and PCIe lane bifurcation.
Interactive Hardware Calculators
Validate real-world mechanical and electrical tolerances before purchasing parts.
GPU + Radiator Clearance
Calculates front radiator stack-up clearance
Available space after deducting 52mm front assembly from 360mm chassis depth.
ATX 3.0 & Transient Spike Estimator
Calculates burst power headroom requirements
Cable Spec: Native 16-pin 12V-2x6 / 12VHPWR (450W rated or dual 8-pin).
Estimated Sustained Load: ~425W (Includes ~80W peripherals & storage)
Three Costly Architectural Traps
Critical clearance and bandwidth boundaries to review prior to unboxing.
PCIe Lane Bifurcation & Secondary M.2
On several current chipsets, populating secondary CPU-attached M.2 slots with PCIe 5.0 drives switches the primary discrete graphics PCIe slot from x16 down to x8.
The 30mm 12VHPWR Straight Rule
To guarantee consistent terminal pin contact and prevent overheating, modern 12V-2x6 connectors require at least 30mm of straight cable run before any sharp bend against case glass.
RAM Height vs. Dual-Tower Coolers
Flagship dual-tower air coolers overhang standard memory slots. Memory modules exceeding 35mm in height force the front 120mm/140mm fan to be mounted higher, causing side panel collisions.
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Eliminate guesswork. PC Part Arena combines dynamic component pricing across premier retailers with automated physical and electrical clearance checks.