Compal boardLaptop mainboardUpdated 2025-09-11
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LA-7851P schematic & BIOS

Compal board used in Dell XPS 15, Dell XPS 15Z L521X, Dell XPS521. QBL00 Dell XPS 15 Dell XPS 15Z L521X Dell XPS521

Files for LA-7851P (5)

TypeFormatFile nameRev SizeAddedDownloadMirror
Schematic .pdf Compal LA-7851P LA-7852P DELL XPS15 PDF .pdf — 2.6 MB Telegram —
Schematic .pdf Dell XPS 15 QBl00 LA-7851P Rev 0.1 (X00) Schematics.pdf 0.1 2.4 MB Telegram —
BIOS .zip AFS ENE_DELL_XPS521_LA-7851P_KB9012.BIN.zip — 61 KB Telegram —
BIOS .zip Dell XPS 15_QBL00_LA-7851P.bin.zip — 3.3 MB Telegram #1
BIOS .rar Dell XPS 15Z L521X LA-7851P BIOS & KBEC WORKING 100%.rar — 3.3 MB Telegram #1

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Models using this board

Model names are taken from the file names as published; always confirm the board number printed on your PCB.