Foxconn 115xdbp Motherboard Schematic Guide

Let’s address the elephant in the room: Foxconn does not host these schematics on their public website. Unlike consumer brands (ASUS, Gigabyte), Foxconn’s primary business is OEM manufacturing, so they guard board-level documentation. However, several avenues exist:

First, a crucial clarification: Foxconn is an Original Design Manufacturer (ODM). Unlike ASUS or Gigabyte, who sell motherboards directly to consumers, Foxconn primarily builds boards for other companies. The “115XDBP” is a classic example of a proprietary board.

You will likely find this motherboard inside office staples like the HP Pavilion p7-xxxx, Compaq Presario CQ-series, or Acer Aspire XC desktops. Foxconn does not sell this board at retail; it only appears inside pre-built systems. foxconn 115xdbp motherboard schematic

Most Foxconn OEM schematics follow Intel’s reference design with 6-8 pages:

If you don’t have the schematic, you can probe based on standard Intel LGA1155 with H61: Let’s address the elephant in the room: Foxconn

| Rail | Source IC | Present when… | |---------------|----------------------------|----------------------| | +3VSB | Always-on regulator | Standby power | | +5VSB | ATX standby | Standby power | | +VCC_RTC | Battery+SB | Always | | +1.05V_ME | LDO from 3VSB or 5VSB | PCH needs standby | | VCC_IO/PLL | Small MOSFETs | After SLP_S3# | | VDDQ/VTT_DDR | PWM controller (e.g., RT8120) | After SLP_S3# | | Vcore | Multi‑phase PWM (ISL6362 etc.) | After VRM_EN | | +VCC_GFX | Secondary phase(s) | After Vcore | | +VCCSA | Same or separate PWM | After Vcore |

Power‑on sequence (approximate):

If you need to troubleshoot a dead 115XDBP board, do not rely on a perfect schematic. Instead, use these strategies: