12306-1M is a Wistron motherboard used in Dell devices. Enginerys has 5 BIOS dumps for this board, collected from public Telegram channels.
Check that 12306-1M matches the number printed on your PCB, including the revision. Where to find it →
12306-1M BIOS dumps
- LM440 12306-1M SP11BIOS · 12306-1M · 8.00 MB · 12 May 2025BIOS bin8.00 MB
- LM440 12306-1M SP11合成BIOS · 12306-1M · 8.00 MB · 10 May 2025BIOS8.00 MB
- LM440 12306-1M SP12BIOS · 12306-1M · 4.00 MB · 10 May 2025BIOS bin4.00 MB
- DELL M4400 LM440 MB 12306-1M 48.4L409.01M WORKING BIOS 100%
Working BIOS dump for the Dell Precision M4400 laptop, Wistron board LM440 with board number 12306-1M and PCB code 48.4L409.01M, and the name says it is fully working.
BIOS · 12306-1M · 10.3 MB · 6 Feb 2024BIOS rar10.3 MB - DELL M4400 LM440 MB 12306 1M SR1HA i5 4200m N14P GV2 B A1 SR17D
BIOS firmware archive labelled for the Dell M4400 with Wistron board LM440, number 12306-1M.
BIOS · 12306-1M · 8.40 MB · 6 Feb 2024BIOS rar8.40 MB
Questions about 12306-1M
Is there a schematic for 12306-1M?
No standalone schematic PDF has been indexed for 12306-1M 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 12306-1M?
No boardview has been indexed for 12306-1M yet.
Who makes the 12306-1M board?
12306-1M follows the Wistron numbering scheme (xxxxx-x). It is found in Dell devices.