PC build
All Black, Compact Vertical Micro ATX Gaming PC Build | Lian Li B4 mATX
This high-performance build utilizes the latest AMD Ryzen 9000-series and NVIDIA RTX 50-series hardware within a compact 21.3L Lian Li B4-mATX chassis. Whi
Component prices & shopping links
0 recent in-stock offers · 3 last seen prices. The subtotal excludes parts without a recorded price. Last seen prices remain visible until a newer observation replaces them. GST inclusion depends on the merchant; shipping is separate.
| Part | Component | AUD price & shopping |
|---|---|---|
| cpu | AMD Ryzen 7 9700X | $529.00 Last seenOct 18, 2026, 12:36 AM UTCCurrent price and stock need a new check.Confirm variant, stock, shipping and tax at checkout. |
| motherboard | Asus TUF Gaming B850M Plus WiFi | $369.00 Last seenOct 18, 2026, 12:36 AM UTCOut of stock at the last check.Confirm variant, stock, shipping and tax at checkout. |
| ram | Adata Lancer Blade DDR5 32GBDescription lists Adata Lancer Blade but references Corsair CL36 in parenthesesConfirm the exact variant before buying | Price not recorded yet. Check local retailers below.Price or exact component identity is under review. It is excluded from the subtotal until confirmed.Confirm variant, stock, shipping and tax at checkout. |
| storage | WD Black SN8100 2TB | $1,149.00 Last seenOct 18, 2026, 7:00 AM UTCCurrent price and stock need a new check.Confirm variant, stock, shipping and tax at checkout. |
| gpu | Asus TUF Gaming RTX 5070 12GB | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| cooler | Noctua NH-D15 G2Specified as chromax.black version | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| psu | Lian Li PS1000P | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| case | Lian Li B4 mATX | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| other | Noctua NF-A12x25 G2 chromax.blackCase fan | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
| other | Lian Li Uni Fan TL Flex 120 3 Pack | Price not recorded yet. Check local retailers below.Confirm variant, stock, shipping and tax at checkout. |
What this build is good for
This high-performance build utilizes the latest AMD Ryzen 9000-series and NVIDIA RTX 50-series hardware within a compact 21.3L Lian Li B4-mATX chassis. While the components are individually powerful, the build faces significant physical integration hurdles. The Noctua NH-D15 G2 is exceptionally large for this form factor, risking interference with memory modules and side panels, while a standard ATX power supply in this case results in severe cable clutter and restricted airflow. To ensure a reliable, functional system suitable for 1440p/4K gaming and general tasks, it is strongly advised to switch to an SFX power supply for better internal clearance. Furthermore, the RAM identity requires immediate clarification, as the current notes contain conflicting information. Addressing these thermal and spatial constraints is critical to maintaining the longevity and performance of such a premium configuration.
- Critical physical clearance constraints within the 21.3L chassis
- High risk of component interference between CPU cooler, RAM, and case panels
- Unresolved RAM model identity
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Useful next steps
Switch to SFX Power Supply
Standard ATX units cause extreme cable cramping and restrict airflow in the compact B4-mATX; SFX power supplies improve build feasibility and cooling.
Verify RAM Height
The NH-D15 G2 is massive and poses a risk of height interference; confirm memory modules are low-profile to ensure fitment.
Clarify RAM Model
The component list contains conflicting names (Adata Lancer Blade vs. Corsair CL36). Verify exact SKU for guaranteed compatibility.