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1# Supermicro X9SAE and X9SAE-V
2
3This page describes how to run coreboot on the Supermicro [X9SAE] and [X9SAE-V]
4
5## Flashing coreboot
6
7```{eval-rst}
8+---------------------+----------------+
9| Type                | Value          |
10+=====================+================+
11| Socketed flash      | occasionally   |
12+---------------------+----------------+
13| Model               | W25Q128FVSG    |
14+---------------------+----------------+
15| Size                | 16 MiB         |
16+---------------------+----------------+
17| Package             | SOIC-8         |
18+---------------------+----------------+
19| Write protection    | no             |
20+---------------------+----------------+
21| Dual BIOS feature   | no             |
22+---------------------+----------------+
23| Internal flashing   | yes            |
24+---------------------+----------------+
25```
26
27The flash IC is located between the PCH and the front panel connector,
28(circled) sometimes it is socketed.
29![](x9sae.jpg)
30
31### How to flash
32
33Unlike ordinary desktop boards, the BIOS version 2.00 of X9SAE-V does not
34apply any write protection, so the main SPI flash can be accessed using
35[flashrom], and the whole flash is writable.
36
37Note: If you are going to modify the ME region via internal programming, you had
38better disable ME functionalities as much as possible in the vendor firmware
39first, otherwise ME may write something back and break the firmware you write.
40
41The following command may be used to flash coreboot. (To do so, linux kernel
42could be started with `iomem=relaxed` or unload the `lpc_ich` kernel module)
43
44Now you can [flash internally]. It is recommended to flash only the `bios`
45region (use `--ifd -i bios -N` flashrom arguments), in order to minimize the
46chances of messing something up in the beginning.
47
48The flash chip is a SOIC-8 SPI flash, and may be socketed, so it's also easy
49to do in-system programming, or remove and flash externally if it is socketed.
50
51## Difference between X9SAE and X9SAE-V
52On X9SAE PCI-E slot 4 is absent. Lane 9~16 of PCI-E slot 6 on X9SAE are wired
53to slot 4 on X9SAE-V. Unlike ASUS P8C WS, there is no dynamic switch on X9SAE-V,
54so on X9SAE-V slot 6 can work as x8 at most.
55
56On X9SAE-V device pci 01.1 appears even if not defined in devicetree.cb, so it
57seems that it shall not appear on X9SAE even if it is defined.
58
59## Working (on my X9SAE-V)
60- Intel Xeon E3-1225 V2 with 4 M391B1G73BH0-YK0 UDIMMs, ECC confirmed active
61- PS/2 keyboard with SeaBIOS 1.14.0 and Debian GNU/Linux with kernel 5.10.46
62- Use PS/2 keyboard and mouse simutaneously with a PS/2 Y-cable
63- Both Onboard NIC
64- S3 Suspend to RAM
65- USB2 on rear and front panel connectors
66- USB3
67- Integrated SATA
68- CPU Temp sensors (tested PSensor on GNU/Linux)
69- LPC TPM on TPM-header (tested tpm-tools with TPM 1.2 Infineon SLB9635TT12)
70- Native raminit
71- Integrated graphics with libgfxinit
72- Nvidia Quadro 600 in all PCIe-16x slots
73- Compex WLM200NX (Qualcomm Atheros AR9220) in PCI slot
74- Debug output from serial port
75
76## Untested
77
78- EHCI debugging
79- S/PDIF audio
80- PS/2 mouse
81
82## Technology
83
84```{eval-rst}
85+------------------+--------------------------------------------------+
86| Northbridge      | :doc:`../../northbridge/intel/sandybridge/index` |
87+------------------+--------------------------------------------------+
88| Southbridge      | bd82x6x                                          |
89+------------------+--------------------------------------------------+
90| CPU              | model_206ax                                      |
91+------------------+--------------------------------------------------+
92| Super I/O        | Nuvoton NCT6776F                                 |
93+------------------+--------------------------------------------------+
94| EC               | None                                             |
95+------------------+--------------------------------------------------+
96| Coprocessor      | Intel Management Engine                          |
97+------------------+--------------------------------------------------+
98```
99
100## Extra resources
101
102- [Flash chip datasheet][W25Q128FVSG]
103
104[X9SAE]: https://www.supermicro.com/products/motherboard/xeon/c216/x9sae.cfm
105[X9SAE-V]:  https://www.supermicro.com/products/motherboard/xeon/c216/x9sae-v.cfm
106[W25Q128FVSG]: https://static.chipdip.ru/lib/093/DOC001093213.pdf
107[flashrom]: https://flashrom.org/Flashrom
108[flash internally]: ../../tutorial/flashing_firmware/int_flashrom.md
109