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# Pademelon board
## Specs (with Merlin Falcon SOC)
* Two 260-pin DDR4 SO-DIMM slots, 1.2V DDR4-1333/1600/1866/2133 SO-DIMMs
Supports 4GB, 8GB and 16GB DDR4 unbuffered ECC (Merlin Falcon)SO-DIMMs
* Can use Prairie Falcon, Brown Falcon, Merlin Falcon, though coreboot
code is specific for Merlin Falcon SOC. Some specs will change if not
using Merlin Falcon.
* One half mini PCI-Express slot on back side of mainboard
* One PCI Express® 3.0 x8 slot
* Two SATA3 ports with 6Gb/s data transfer rate
* Two USB 2.0 ports at rear panel
* Two USB 3.0 ports at rear panel
* Dual Gigabit Ethernet from Realtek RTL8111F Gigabit controller
* 6-channel High-Definition audio from Realtek ALC662 codec
* One soldered down SPI flash with dediprog header
## Mainboard
![mainboard][pademelon]
Three items are marked in this picture
1. dediprog header
2. memory dimms, address 0xA0 and 0xA4
3. SATA cables connected to motherboard
## Back panel
![back panel][pademelon_io]
* The lower serial port is UART A (debug serial)
## Flashing coreboot
```{eval-rst}
+---------------------+--------------------+
| Type | Value |
+=====================+====================+
| Socketed flash | no |
+---------------------+--------------------+
| Model | Macronix MX256435E |
+---------------------+--------------------+
| Size | 8 MiB |
+---------------------+--------------------+
| Flash programming | dediprog header |
+---------------------+--------------------+
| Package | SOIC-8 |
+---------------------+--------------------+
| Write protection | No |
+---------------------+--------------------+
```
## Technology
```{eval-rst}
+---------------+------------------------------+
| Fan control | Using fintek F81803A |
+---------------+------------------------------+
| CPU | Merlin Falcon (see reference)|
+---------------+------------------------------+
```
## Description of pictures within this document
```{eval-rst}
+----------------------------+----------------------------------------+
|pademelon.jpg | Motherboard with components identified |
+----------------------------+----------------------------------------+
|pademelon_io.jpg | Back panel picture |
+----------------------------+----------------------------------------+
```
## Reference
[Merlin Falcon BKDG][merlinfalcon]
[merlinfalcon]: ../../../soc/amd/family15h.md
[pademelon]: pademelon.jpg
[pademelon_io]: pademelon_io.jpg
|
