Specifically models like the HP ProBook 640 G2 and HP ProBook 4740s .
While hard to find by the HannStar code, some schematic databases list them under "E89382 Motherboard Schematic".
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: hsb j mv6 94v0 e89382 bios full
HannStar is a major manufacturer of printed circuit boards (PCBs).
This is a UL (Underwriters Laboratories) flammability rating, indicating that the plastic material is flame-retardant and will stop burning within 10 seconds. Specifically models like the HP ProBook 640 G2
Often supports Intel Core i3/i5/i7 (e.g., i3-3120M) or LGA 1155 sockets in some desktop variations.
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. Common devices that use boards with these markings
If you are looking for a "BIOS full" dump (a .bin or .rom file for use with a hardware programmer like the CH341A), searching by "E89382" is unreliable. Instead, you must find the printed elsewhere on the board. Look for codes such as: HP Part Numbers: "SPS: ######-###"