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Technical Specifications
Technical Summary
The Quanta LE4 motherboard is designed for the Yonah/Merom CPU platform using a 478 Micro-FCPGA socket. The platform is built around the 945PM/945GM/940GML Northbridge and ICH7-M Southbridge, supporting DDRII 266/333 MHz memory across two SODIMM slots. Graphics options include integrated VGA from the 945GM/940GML or a discrete NVIDIA G72M GPU. Power management is handled by a MAX8771 CPU core regulator, MAX8734 system power, MAX1993 for NB core and 1.25V rails, and MAX8632 for 1.8VSUS and 0.9V SMDDR_VREF. The charging IC is a MAX8724. The embedded controller is a PC87551. Networking is provided by either a BCM4401 10/100M or BCM5788 1G LAN controller. Audio is managed by a Conexant codec with a MAX9755 amplifier. The system includes a TI 8412 card reader controller and a 87383 Super I/O.
Technician FAQ
Q: What EC/KBC is used on the Quanta LE4 motherboard?
A: The EC/KBC is a PC87551.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Quanta Computer Inc. |
| Model | LE4 |
| Motherboard Manufacturer | Quanta Computer Inc. |
| Project Code | LE4 |
| Date | Friday, December 23, 2005 |
| CPU Platform | Yonah / Merom |
| CPU Socket | 478 Micro-FCPGA |
| PCH / Southbridge | ICH7-M |
| GPU Type | NVIDIA G72M |
| Graphics Architecture | Integrated VGA Function (945GM/940GML) / NVIDIA G72M |
| Charging IC | MAX8724 |
| Power IC(s) | MAX8771, MAX8734, MAX1993, MAX8632 |
| RAM Type | DDRII |
| RAM Architecture | DDRII 266,333 MHz |
| RAM Quantity / Slots | 2 (DDRII-SODIMM1, DDRII-SODIMM2) |
| LAN IC | BCM4401 / BCM5788 |
| Audio Codec | Conexant Audio |
| Audio Amplifier | MAX9755 |
| Card Reader IC | TI 8412 |
| Super I/O | 87383 |
| Northbridge | 945PM / 945GM / 940GML (1466 BGA) |
| Southbridge | ICH7-M (652 BGA) |
| EC / KBC | PC87551 |
| CPU Core Voltage Regulator | MAX8771 |
| System Power Regulator (3/5V) | MAX8734 |
| System Power Regulator (1.2V/NB_CORE/1.25V) | MAX1993 |
| System Power Regulator (1.8VSUS/0.9V SMDDR_VREF) | MAX8632 |
| Battery Charger | MAX8724 |
| Audio Amplifier IC | MAX9755 |
| Card Reader Controller | TI 8412 |
| LAN Controller (10/100M) | BCM4401 |
| LAN Controller (1G) | BCM5788 |
Technical Summary
The Quanta LE4 motherboard is designed for the Yonah/Merom CPU platform using a 478 Micro-FCPGA socket. The platform is built around the 945PM/945GM/940GML Northbridge and ICH7-M Southbridge, supporting DDRII 266/333 MHz memory across two SODIMM slots. Graphics options include integrated VGA from the 945GM/940GML or a discrete NVIDIA G72M GPU. Power management is handled by a MAX8771 CPU core regulator, MAX8734 system power, MAX1993 for NB core and 1.25V rails, and MAX8632 for 1.8VSUS and 0.9V SMDDR_VREF. The charging IC is a MAX8724. The embedded controller is a PC87551. Networking is provided by either a BCM4401 10/100M or BCM5788 1G LAN controller. Audio is managed by a Conexant codec with a MAX9755 amplifier. The system includes a TI 8412 card reader controller and a 87383 Super I/O.
Technician FAQ
Q: What EC/KBC is used on the Quanta LE4 motherboard?
A: The EC/KBC is a PC87551.
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