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
Broadwell
CPU Platform
Haswell-ULT
CPU Platform
Intel Haswell ULT
CPU Model
OPI
CPU Platform
N15P-GT
Graphics Model
VGA N15S-GT
Graphics Model
1Gb DDR3
Graphics Model
KB9012QF
EC / KBC
ALC286
Audio Codec
TPS2546
Charging / PD IC
DDR3L
RAM Type
RTS5229
Card Reader IC
TPS2546
USB Controller
RTL8111G-CG
LAN Controller
WiFi 802.11 + BT
WiFi / WLAN
MSTAR MTS9685D
Signal Conditioning IC
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
Broadwell
CPU Platform
Haswell-ULT
CPU Platform
Intel Haswell ULT
CPU Model
OPI
CPU Platform
N15P-GT
Graphics Model
VGA N15S-GT
Graphics Model
1Gb DDR3
Graphics Model
KB9012QF
EC / KBC
ALC286
Audio Codec
TPS2546
Charging / PD IC
DDR3L
RAM Type
RTS5229
Card Reader IC
TPS2546
USB Controller
RTL8111G-CG
LAN Controller
WiFi 802.11 + BT
WiFi / WLAN
MSTAR MTS9685D
Signal Conditioning IC
RTL2486
Signal Conditioning IC
Attachments
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