E93839 Motherboard Schematic Updated 💫

The e93839 board includes a configuration jumper block (often labeled "P16" or "JMP1"). The updated schematic reveals which two pins to short for:

Pin 8 on the SPI flash chip (W25Q32) was mislabeled in early drafts. The update corrects the HOLD# pin functionality, which is critical for external BIOS programmers like the CH341A or RT809H. e93839 motherboard schematic updated

If you are repairing a Lenovo G570 that refuses to turn on, here is a step-by-step guide using the updated e93839 documentation: The e93839 board includes a configuration jumper block

The latest schematic set (Revision 2.1 / June 2026) includes the following improvements: e93839 motherboard schematic updated