coreboot-kgpe-d16/Documentation/mainboard/system76/addw3.md

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# System76 Adder Workstation 3 (addw3)
## Specs
- CPU
- Intel Core i9-13900HX
- EC
- ITE IT5570E running [System76 EC](https://github.com/system76/ec)
- Graphics
- dGPU options
- NVIDIA GeForce RTX 4050
- NVIDIA GeForce RTX 4060
- NVIDIA GeForce RTX 4070
- eDP displays
- 15.6" 1920x1080@144Hz LCD
- 17.3" 1920x1080@144Hz LCD
- External outputs
- 1x HDMI 2.1
- 1x Mini DisplayPort 1.4
- 1x DisplayPort 1.4 over USB-C
- Memory
- Up to 64GB (2x32GB) dual-channel DDR5 SO-DIMMs @ 4800 MHz
- Networking
- Intel I219-V gigabit Ethernet
- M.2 PCIe/CNVi WiFi/Bluetooth
- Intel Wi-Fi 6E AX210/AX211
- Power
- 280W (20V, 14A) DC-in port
- Included: Chicony A18-280P1A
- 73Wh 4-cell Lithium-Ion battery
- Sound
- Realtek ALC256 codec
- Internal speakers and microphone
- Combined 3.5mm headphone/microphone jack
- Dedicated 3.5mm microphone jack
- HDMI, mDP, USB-C DP audio
- Storage
- 2x M.2 (PCIe NVMe Gen 4) SSDs
- MicroSD card reader
- USB
- 1x USB Type-C with Thunderbolt 4
- 1x USB 3.2 Gen 2 Type-C
- 1x USB 3.2 Gen 1 Type-A
- 1x USB 2.0 Type-A
- Dimensions
- 15": 2.71cm x 35.95cm x 23.8cm, 2.05kg
- 17": 2.82cm x 39.69cm x 26.2cm, 2.85kg
## Flashing coreboot
```eval_rst
+---------------------+---------------------+
| Type | Value |
+=====================+=====================+
| Socketed flash | no |
+---------------------+---------------------+
| Vendor | GigaDevice |
+---------------------+---------------------+
| Model | GD25B256E |
+---------------------+---------------------+
| Size | 32 MiB |
+---------------------+---------------------+
| Package | WSON-8 |
+---------------------+---------------------+
| Internal flashing | yes |
+---------------------+---------------------+
| External flashing | yes |
+---------------------+---------------------+
```
The flash chip (U65) is above the battery connector.