Intel Desktop Board 01 21 B6 E1 E2 Er New _top_ -

General Approach to Finding Motherboard Features

1. 3. The Dead CMOS Battery

   You saw b6 (NVRAM cleared). If the battery is at 0.0V, the board tries to boot with random register values.

   But this one survived. It was "New."

   You might be looking for this specific board for a few reasons: Direct Replacement: intel desktop board 01 21 b6 e1 e2 er new

   | Location on board | What to look for | |------------------|------------------| | Between PCI slots | AA number (e.g., AA D915GUX) – Intel’s internal Assembly/Article number | | Near the CPU socket | Model silk-screened (e.g., D845WN, D102GGC, D915GEV) | | On a white sticker near the RAM slots | PBA (Printed Board Assembly) number – often starts with G1 or E1 | | BIOS chip label | Sometimes has the last 4 digits of the board ID | General Approach to Finding Motherboard Features