lenovo a540 a740 all-in-one compal la-b031p mainboard rev 0.1
Technical Specifications
Technical Summary
The Compal AB031 motherboard, revision 0.1, is designed for the A740/A540 all-in-one models, built on the Intel Broadwell platform with DDR3L memory. The core architecture features an Intel Haswell ULT processor paired with a Lynx Point - LP PCH. Graphics processing is handled by an nVIDIA VGA N15S_GT/N15P_GT GPU with 1Gb DDR3 VRAM. The system utilizes a single 204-pin DDR3L-SO-DIMM slot supporting 1333/1600 MHz memory. The embedded controller is a KB9012QF, which is programmable via an 8MB ENESPI ROM. The audio subsystem is managed by an ALC286 HDA codec. Networking is provided by a Realtek RTL8111G CG LAN IC and WiFi 802.11 + BT. The board includes a TPS2546 USB charging IC and a RTS5229 card reader. Display output is managed by an Mstar MTS9685D or Realtek RTL2486 HDMI level shifter.
Technician FAQ
Q: What is the EC/KBC used on this motherboard and is it programmable?
A: The EC/KBC is a KB9012QF, and it is programmable via an 8MB ENESPI ROM.
Q: What is the BIOS flash capacity on this motherboard?
A: The BIOS/SPI flash is an 8MB ENESPI ROM.
Q: What is the memory architecture of this motherboard?
A: The motherboard uses a single 204-pin DDR3L-SO-DIMM slot supporting DDR3L 1333/1600 memory.
Q: What is the charging architecture on this motherboard?
A: The charging architecture is USB charging, managed by a T
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Compal |
| Model | A740/A540 |
| Motherboard Manufacturer | Compal Electronics, Inc. |
| Project Code | AB031 |
| Board Number | AB031 |
| Revision | 0.1 |
| Date | AUG. 1, 2013 |
| CPU Platform | Intel Broadwell with DDR3L |
| Platform Alias | Haswell ULT |
| CPU Model | Intel Haswell ULT |
| CPU Socket | OPI |
| PCH / Southbridge | Lynx Point - LP |
| GPU Type | nVIDIA VGA N15S_GT/N15P_GT |
| Graphics Architecture | 1Gb DDR3 |
| EC / KBC | KB9012QF |
| EC/KBC Package | QF |
| EC/KBC Programmable | ENESPI ROM(8MB) |
| Audio Codec | ALC286 |
| BIOS / SPI Flash | ENESPI ROM(8MB) |
| BIOS Flash Capacity | 8MB |
| Charging IC | TPS2546 |
| Charger Architecture | USB Charger |
| RAM Type | DDR3L 1333/1600 |
| RAM Architecture | 204pin DDR3L-SO-DIMM X1 |
| RAM Quantity / Slots | 1 |
| Card Reader IC | RTS5229 |
| USB Hub IC | TPS2546 |
| LAN IC | RTL8111G CG |
| WiFi / WLAN IC | WiFi 802.11 + BT |
| HDMI Level Shifter | Mstar MTS9685D/Realtek RTL2486 |
Technical Summary
The Compal AB031 motherboard, revision 0.1, is designed for the A740/A540 all-in-one models, built on the Intel Broadwell platform with DDR3L memory. The core architecture features an Intel Haswell ULT processor paired with a Lynx Point - LP PCH. Graphics processing is handled by an nVIDIA VGA N15S_GT/N15P_GT GPU with 1Gb DDR3 VRAM. The system utilizes a single 204-pin DDR3L-SO-DIMM slot supporting 1333/1600 MHz memory. The embedded controller is a KB9012QF, which is programmable via an 8MB ENESPI ROM. The audio subsystem is managed by an ALC286 HDA codec. Networking is provided by a Realtek RTL8111G CG LAN IC and WiFi 802.11 + BT. The board includes a TPS2546 USB charging IC and a RTS5229 card reader. Display output is managed by an Mstar MTS9685D or Realtek RTL2486 HDMI level shifter.
Technician FAQ
Q: What is the EC/KBC used on this motherboard and is it programmable?
A: The EC/KBC is a KB9012QF, and it is programmable via an 8MB ENESPI ROM.
Q: What is the BIOS flash capacity on this motherboard?
A: The BIOS/SPI flash is an 8MB ENESPI ROM.
Q: What is the memory architecture of this motherboard?
A: The motherboard uses a single 204-pin DDR3L-SO-DIMM slot supporting DDR3L 1333/1600 memory.
Q: What is the charging architecture on this motherboard?
A: The charging architecture is USB charging, managed by a T
Indexed motherboard components
Open a component to see every indexed schematic that uses the same part.
AB031
Project Code
AB031
Board Number
Intel Broadwell with DDR3L
CPU Platform
Intel Haswell ULT
CPU Model
nVIDIA VGA N15S_GT/N15P_GT
Graphics
1Gb DDR3
Graphics
KB9012QF
EC / KBC
ALC286
Audio Codec
TPS2546
Charging / PD IC
DDR3L 1333/1600
RAM Type
RTS5229
Card Reader IC
TPS2546
USB Controller
RTL8111G CG
LAN Controller
WiFi 802.11 + BT
WiFi / WLAN
MSTAR MTS9685D/REALTEK RTL2486
Signal Conditioning IC
Indexed motherboard components
Open a component to see every indexed schematic that uses the same part.
AB031
Project Code
AB031
Board Number
Intel Broadwell with DDR3L
CPU Platform
Intel Haswell ULT
CPU Model
nVIDIA VGA N15S_GT/N15P_GT
Graphics
1Gb DDR3
Graphics
KB9012QF
EC / KBC
ALC286
Audio Codec
TPS2546
Charging / PD IC
DDR3L 1333/1600
RAM Type
RTS5229
Card Reader IC
TPS2546
USB Controller
RTL8111G CG
LAN Controller
WiFi 802.11 + BT
WiFi / WLAN
MSTAR MTS9685D/REALTEK RTL2486
Signal Conditioning IC
Attachments
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