lenovo e680a e290 410 410l 410m 420 le4 a1a 1108 rev 1a schematic 1
Technical Specifications
Technical Summary
This Quanta LE4 motherboard, dated November 8, 2005, is built around the Calistoga / Yonah / ICH-7m platform, supporting Yonah/Merom CPUs. The system memory architecture consists of two DDRII SODIMM slots operating at 266 or 333 MHz. Graphics are handled by an NVIDIA G72M/M GPU alongside an integrated VGA function. Power management is distributed across multiple ICs including the MAX8771 for CPU core, MAX8734 and MAX1993 for system power, and MAX8632 for 1.8VSUS and 0.9V SMDDR_VREF. The charging subsystem utilizes a MAX8724 battery charger. Networking is provided by a BCM4401 or BCM5788 LAN IC. Audio processing is managed by a Conexant codec with a MAX9755 amplifier. The embedded controller is a PC87551L in a TQFP package. Peripheral connectivity includes a TI 8412 card reader and a CPU thermal sensor.
Technician FAQ
Q: What EC/KBC is used on this Quanta LE4 motherboard?
A: The embedded controller is a PC87551L in a TQFP package.
Q: What is the charging IC and architecture on this board?
A: The charging IC is a MAX8724, configured as a battery charger.
Q: What power management ICs are present on this motherboard?
A: The power ICs include the MAX8771 (CPU core), MAX8734 (3/5V system power), MAX1993 (1.2V/NB_CORE/1.25V), and MAX8632 (1.8VSUS/0.9V SMDDR_VREF).
Q: What is the memory configuration of the Quanta LE4?
A: The board supports two DDRII SODIMM modules operating at 266 or 333 MHz.
Q: What LAN IC options are available on this motherboard?
A: The LAN IC options are the BCM4401 (10/100M) or BCM5788 (1G).
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Quanta Computer Inc. |
| Model | LE4 |
| Motherboard Manufacturer | Quanta Computer Inc. |
| Project Code | LE4 |
| Date | Tuesday, November 08, 2005 |
| CPU Platform | Calistoga / Yonah / ICH-7m |
| CPU Model | Yonah/Merom |
| PCH / Southbridge | ICH-7m |
| GPU Type | NVIDIA G72M/M |
| Graphics Architecture | INTEGRATED VGA FUNCTION |
| Charging IC | MAX8724 |
| Charger Architecture | BATT CHARGER |
| Power IC(s) | MAX8771, MAX8734, MAX1993, MAX8632 |
| RAM Type | DDRII |
| RAM Architecture | DDRII 266,333 MHz |
| RAM Quantity / Slots | 2 |
| LAN IC | BCM4401/5788 |
| Audio Codec | Conexant Audio |
| Audio Amplifier | MAX9755 |
| Card Reader IC | TI 8412 |
| Thermal Sensor | CPU THERMAL SENSOR |
| EC / KBC | PC87551L |
| EC/KBC Package | TQFP XXX |
Technical Summary
This Quanta LE4 motherboard, dated November 8, 2005, is built around the Calistoga / Yonah / ICH-7m platform, supporting Yonah/Merom CPUs. The system memory architecture consists of two DDRII SODIMM slots operating at 266 or 333 MHz. Graphics are handled by an NVIDIA G72M/M GPU alongside an integrated VGA function. Power management is distributed across multiple ICs including the MAX8771 for CPU core, MAX8734 and MAX1993 for system power, and MAX8632 for 1.8VSUS and 0.9V SMDDR_VREF. The charging subsystem utilizes a MAX8724 battery charger. Networking is provided by a BCM4401 or BCM5788 LAN IC. Audio processing is managed by a Conexant codec with a MAX9755 amplifier. The embedded controller is a PC87551L in a TQFP package. Peripheral connectivity includes a TI 8412 card reader and a CPU thermal sensor.
Technician FAQ
Q: What EC/KBC is used on this Quanta LE4 motherboard?
A: The embedded controller is a PC87551L in a TQFP package.
Q: What is the charging IC and architecture on this board?
A: The charging IC is a MAX8724, configured as a battery charger.
Q: What power management ICs are present on this motherboard?
A: The power ICs include the MAX8771 (CPU core), MAX8734 (3/5V system power), MAX1993 (1.2V/NB_CORE/1.25V), and MAX8632 (1.8VSUS/0.9V SMDDR_VREF).
Q: What is the memory configuration of the Quanta LE4?
A: The board supports two DDRII SODIMM modules operating at 266 or 333 MHz.
Q: What LAN IC options are available on this motherboard?
A: The LAN IC options are the BCM4401 (10/100M) or BCM5788 (1G).
Technical data structured and organized by Dr-Bios.com, based on original schematic source analysis.
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