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- LENOVO SL400BIOS · 1.00 MB · 8 Aug 2019BIOS—1.00 MB
- lenovo sl400BIOS · 4.00 MB · 8 Aug 2019BIOS bin—4.00 MB
- Lenovo ThinkPad SL400BIOS · 4.00 MB · 5 May 2025BIOS bin—4.00 MB
- lenovo sl400 rocky40 50 biosBIOS · 1.00 MB · 28 Apr 2025BIOS bin—1.00 MB
- Lenovo Thinkpad SL400 (Discrete VGA)BIOS · 969 KB · 8 Aug 2019BIOS rar—969 KB
- lenovo sl400 rocky40-50 biosBIOS · 1.00 MB · 17 Mar 2023BIOS bin—1.00 MB
- THINKPAD SL400 OK
BIOS dump for the Lenovo ThinkPad SL400, marked OK in the name, which suggests it was tested and confirmed working.
BIOS · 700 KB · 27 Jul 2021BIOS rar—700 KB - SL400-SL500 rocky40-50 DDR2
BIOS image for the Lenovo ThinkPad SL400 and SL500, noted as the DDR2 version, with the board code names Rocky40 and Rocky50.
BIOS · 726 KB · 27 Jul 2021BIOS zip—726 KB