High-Performance AI SBC Design
0:00
Work done
- Verified the current schematic already has key infrastructure placed and partially net-labeled for a V3C48-class Pico-ITX SBC: GPU slot J3, NVMe sockets U1–U4, PCIe switch placeholder U11, PD controller U13 with USB-A power switches U14–U17, boot flash U12, RTC backup holder J12, and ATX+DC ORing/eFuse U9/U8 with battery-module header J13.
- Pulled web references confirming V3000-family I/O concept (DDR5/ECC + up to 20 lanes PCIe Gen4 arranged as x8 + 3x4) and filed an internal missing-part request to add the AMD V3C48/V3000 APU symbol/footprint plus SlimSAS SFF-8654 and a suitable PCIe Gen4 switch into the Flux library.
- Reviewed ERC/DRC: ERC is currently OK for undriven nets, but DRC still shows 203 airwires and BOM/MPN review flags for J10, J4, J5.
Success criteria review
- ❌ Cannot replace CPU placeholder U5 with AMD Ryzen Embedded V3C48 because an implementable V3C48/V3000 symbol+footprint (or SOM/module with published pinout) is not available in the Flux library; TechPowerUp does not provide the required pinout/ball map.
- ❌ Therefore cannot complete DDR5/ECC wiring, SPI boot wiring to U12, RTC VBAT wiring to J12, or the required PCIe lane map (x8->J3, x8->SlimSAS, x4->Gen4 switch->U1–U4) in a production-correct way.
- ❌ Cannot clear DRC airwires because I cannot trigger auto-routing/auto-placement from the agent side (Flux limitation); you must run Auto-Layout in the UI.
Next steps
- Provide a real V3C48/V3000 pinout source (ball-map/pin mux table) or choose a V3000 SOM with public connector pinout; once we have that (and/or once the library parts land), I can replace U5 and fully wire DDR5/ECC, SPI flash U12, RTC backup J12, SlimSAS, and the Gen4 NVMe fan-out switch.
- In parallel, you can run Auto-Layout routing; after that I can re-run DRC airwire checks and help resolve remaining schematic/constraint issues.
9 days
Ready.
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #genericsjharwinbarrozo15.4k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
Inspect
Able Bronze Robot Vacuum
Controls
Properties
System Architecture
flowchart TD
subgraph PowerEntry[Power Entry]
ATX24[ATX 24 pin input]
DCJack[DC barrel input]
Protect[Surge ESD OV OC protection]
ORing[Ideal diode ORing]
VIN12[VIN 12V main bus]
ATX33[ATX 3.3V]
ATX5[ATX 5V]
end
subgraph Compute[Compute and Memory]
CPU[CPU socket placeholder]
DDR[DDR slots up to 128GB]
end
subgraph PCIeFabric[PCIe Gen5 Fabric]
GPU[PCIe x16 Gen5 slot]
NIC[PCIe x4/x8 slot for NIC]
SW[PCIe switch retimer placeholders]
M2A[M.2 NVMe slot 1]
M2B[M.2 NVMe slot 2]
M2C[M.2 NVMe slot 3]
M2D[M.2 NVMe slot 4]
end
subgraph Rails[VRM Rails]
VCPU[CPU core VRM placeholder]
VSOC[SoC VRM placeholder]
VDDR[DDR VRM placeholder]
V33[3.3V aux]
V5[5V aux]
VPCIE[PCIe slot power]
end
subgraph Expansion[Arduino Expansion]
Arduino[Arduino header area]
UART[UART]
I2C[I2C]
SPI[SPI]
GPIO[GPIO]
end
subgraph Mech[Thermal and Mechanical]
WB[Water block keepout]
M2Therm[M.2 thermal zones]
Mount[Mounting holes]
end
ATX24 --> Protect
DCJack --> Protect
Protect --> ORing
ORing --> VIN12
VIN12 --> Rails
ATX33 --> Rails
ATX5 --> Rails
Rails --> CPU
Rails --> DDR
CPU --> DDR
CPU --> PCIeFabric
SW --> GPU
SW --> NIC
SW --> M2A
SW --> M2B
SW --> M2C
SW --> M2D
CPU --> Arduino
Arduino --> UART
Arduino --> I2C
Arduino --> SPI
Arduino --> GPIO
Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
| Arrow | $42.13–$51.45 | |
| Digi-Key | $33.36–$35.60 | |
| LCSC | $91.84–$93.38 | |
| Mouser | $60.10 | |
| TME | $8.48 | |
| Verical | $38.23–$48.25 | |
Assets
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