Tyche is a SiFive HiFive Unmatched computer with a 1.4GHz Freedom U740 RISC-V processor, 16GB RAM and a 1TB Samsung 970 Evo NVMe SSD.
The naming
When taking chances, the ancient Greeks sought the favor and protection of Tyche, their goddess of risk.
Components
This is a quite overkill mITX build, but I decided to get components I can reuse for other builds as well at a later point.
| Article | Price | Where from |
|---|---|---|
| HiFive Unmatched | 664.18€ | Mouser |
| Phanteks Enthoo Evolv (Micro Tower) | 61.00€ | Galaxus |
| be quiet! Pure Power 11 (300W) | 43.89€ | Galaxus |
| Samsung NVMe SSD 970 EVO | 98.45€ | MediaMarkt |
| Sapphire AMD Radeon R5 230 1GB DDR3 (used) | 16.00€ | eBay |
| Samsung EVO Select 128GB | 35.94€ | Amazon |
| Noctua NF-A4x10 FLX (40x10mm fan) | 14.89€ | Amazon |
| VARTA Lithium CR1220 | 1.84€ | Amazon |
| TOTAL | 936.19€ |
Assembly
The case is very big, but it’s still lots of fidgeting to put all components inside. Note that the Unmatched board screws are not magnetic, which makes assembly more awkward than needed; replace them if you have magnetic ones.
The case does not have a reset button, even if the manual says so. But you can change the color of the LED!
Fan replacement
The stock fan is super loud which makes you not want to sit in the same room as the machine. I therefore replaced it with a 40mm Noctua fan. Together with the case fan this results in enough cooling.
To make the 40mm Noctua fan fit on the 20mm stock heatsink, I used a 3d printed adapter; be sure to use a heat-tolerant material such as PETG.
Setup
To be done, currently I’m running the stock freedom-sdk images.