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Intel Desktop Board D845PEBT2 (AA D845PEBT2)

Socket 478 / Intel 845PE, 2002–2003. This entry documents one exact board model/revision; its specifications are not interchangeable with similarly named variants.

Original local schematic of Intel Desktop Board D845PEBT2 (AA D845PEBT2); not a product photograph or dimensional drawing
ORIGINAL LOCAL SCHEMATIC // NOT TO SCALE OR A PRODUCT PHOTOGRAPH

REVISION WARNING: Confirm the PCB silk-screen, assembly/AA code and firmware ID on the actual board. Where documentation does not identify one PCB spin, this record states the exact documented model and explains the revision distinction below.

Specifications

Exact model / revisionBoard model D845PEBT2; match the complete AA/board revision printed on the PCB
CPU / socketSocket 478 Pentium 4/Celeron supported by the exact board AA and BIOS; do not infer Prescott support
Chipset / platformIntel 845PE northbridge + ICH4
MemoryDDR 200/266/333 SDRAM, three DIMM sockets; capacity and module density are manual-specific
Form factorATX
I/O and expansionAGP 4x, five PCI, IDE/ATA, floppy, USB 2.0, integrated 10/100 Ethernet and audio
Firmware compatibilityIntel desktop-board BIOS; CPU recognition/support depends on AA number and BIOS release

Compatibility and revision pitfalls

Intel published separate AA/board revisions and processor qualification lists. The required AA number is on the PCB; D845PEBT2 look-alike/retail boards must not be assumed to share VRM, BIOS or CPU support. Verify the exact support list before installing a 533 MHz FSB processor.

Socket fit alone is not proof of support. Confirm the manufacturer CPU support list, the board's minimum BIOS, memory population table, and exact chassis/power requirements before operation.

Preservation notes

Record AA number and BIOS ID, keep original Intel recovery/BIOS files, and photograph DIMM/AGP configuration. Check Socket 478 pins and capacitors around CPU VRM; these boards may have aging electrolytics.

Record provenance, date/serial codes, board and firmware revision, known repairs and test conditions. Photograph labels and connectors before cleaning or component removal; retain original firmware and configuration data when possible.

Sources & further reading

  1. Intel Desktop Board D845PEBT2 Product Guide — archived original scanArchived product guide for this exact board model; use the printed AA number to select the matching processor/memory tables.
  2. Intel D845PEBT2 processor and BIOS support — archived referenceIntel board-support record; BIOS revisions and compatibility are AA-specific. Intel may restrict access to obsolete content.

Manufacturer manuals, CPU lists and archived primary documents take precedence over reseller summaries. If an archived support page omits a revision-specific file, do not assume another revision's firmware is compatible.