203075-1 is a Wistron motherboard used in Lenovo devices. Enginerys has 1 BIOS for this board, collected from public Telegram channels.
Check that 203075-1 matches the number printed on your PCB, including the revision. Where to find it →
203075-1 BIOS dumps
- RTS5457v@13s G3 ACN 20YA V550 AMD CEZANNE 13 203075 1 CRC32 0xE079B5E4
RTS5457V PD controller code for a Lenovo 13s G3 ACN with an AMD Cezanne platform, on Wistron board 203075-1.
BIOS · 203075-1 · 52.6 KB · 21 May 2026BIOS rar52.6 KB
Questions about 203075-1
Is there a schematic for 203075-1?
No standalone schematic PDF has been indexed for 203075-1 yet. Check the archives listed on this page — schematics are often packed together with the boardview — or search again later, as the index is updated daily.
Is there a boardview for 203075-1?
No boardview has been indexed for 203075-1 yet.
Who makes the 203075-1 board?
203075-1 follows the Wistron numbering scheme (xxxxx-x). It is found in Lenovo devices.