Schematic acer es1-311 ea30 bm 14221-sb schematic

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acer es1-311 ea30_bm 14221-sb schematic

ea30_bm 14221-1m.pdf

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Technical Specifications

Parameter	Value
Brand	Wistron
Project Code	EA30_BM
Document Number	EA30_BM-1
Revision	A3
Date	Tuesday, July 08, 2014
CPU Platform	Bay Trail-M
EC / KBC	NPCE985P
BIOS / SPI Flash	8MB SPI Flash
BIOS Flash Exact Model	W25Q64FWSSIG
Charging IC	BQ24727
Charger Architecture	BQ24727RGRR
Audio Codec	ALC2832
LAN IC	Realtek RTL8411B
Card Reader IC	Realtek RTL8411B
RAM Type	DDR3L
RAM Architecture	DDR3L 1333MHz Channel A
RAM Quantity / Slots	1 Slot
GPU Type	Integrated
Graphics Architecture	VGA_CORE
Power IC(s)	TPS51225, ISL95833, SY8208, TLV70218, TLV70012, SYW2325, RT8812, TPS22966, TPS22965
WiFi / WLAN IC	WLAN & BT comb module

Technical Summary

This Wistron EA30_BM motherboard, revision A3, is built around the Intel Bay Trail-M CPU platform. The system firmware is stored on an 8MB SPI flash, specifically a W25Q64FWSSIG IC. Embedded controller functions are handled by an NPCE985P. Memory configuration consists of a single DDR3L 1333MHz channel A slot. The integrated GPU core is regulated by an RT8812 controller. Charging is managed by a BQ24727RGRR charger IC. Audio is provided by an ALC2832 codec, while networking and card reader duties are handled by a Realtek RTL8411B. The power delivery subsystem includes TPS51225, ISL95833, SY8208, TLV70218, TLV70012, SYW2325, RT8812, TPS22966, and TPS22965 regulators and load switches. Wireless connectivity is supported via a WLAN and Bluetooth combo module.

Technician FAQ

Q: What is the exact BIOS flash IC model used on this motherboard?

A: The BIOS flash IC is a W25Q64FWSSIG, an 8MB SPI flash device.

Q: What EC/KBC controller is used on this motherboard?

A: The embedded controller is an NPCE985P.

Q: What is the charging IC and architecture for this board?

A: The charging IC is a BQ24727, with the specific package variant being BQ24727RGRR.

Q: What type of memory does this motherboard support?

A: This motherboard supports DDR3L memory at 1333MHz, configured as a single-channel (Channel A) with one slot.

Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.

Indexed motherboard components

Open a component to see every indexed schematic that uses the same part.

EA30_BM Project Code Bay Trail - M CPU Platform NPCE985P EC / KBC W25Q64FWSSIG BIOS / EC Flash BQ24727 Charging / PD IC ALC2832 Audio Codec RTL8411B LAN Controller RTL8411B Card Reader IC DDR3L RAM Type VGA_CORE Graphics ISL95833 Power IC RT8812 Power IC SY8208 Power IC SYW2325 Power IC TLV70012 Power IC TLV70218 Power IC TPS22965 Power IC TPS22966 Power IC TPS51225 Power IC WLAN & BT comb module WiFi / WLAN