This is a UL (Underwriters Laboratories) flammability rating, indicating that the plastic material is flame-retardant and will stop burning within 10 seconds.
HannStar is a major manufacturer of printed circuit boards (PCBs).
Technicians often share verified BIOS backups on repair forums like VLab.su or EgyFixLab specifically for the ProBook 640 G2 or 4740s using this board. 4. Technical Specifications & Repair hsb j mv6 94v0 e89382 bios full
Specifically models like the HP ProBook 640 G2 and HP ProBook 4740s .
Boards with this marking have also been spotted in Medion laptops and some Dell Latitude sub-cards. 3. Finding a "Full BIOS" File hsb j mv6 94v0 e89382 bios full
This is the UL file number for HannStar, identifying them as the fabricator of the bare board. 2. Identifying the Correct Device
A known issue with the HP ProBook 4740s version of this board involves extremely slow boot times (taking up to 5 minutes to show an image), which is often solved by a BIOS reflash or cleaning the ME Region of the BIOS file. hsb j mv6 94v0 e89382 bios full
These codes refer to the manufacturing standards and the raw material (PCB) manufacturer, rather than the laptop or motherboard model itself:
Because HannStar manufactures boards for many brands, you will find this same marking on motherboards from different manufacturers. Common devices that use boards with these markings include: