Schematic Dell Latitude 3350 14291 Wistron loveland_skl-u Rev a00 schematic

[Salim Badakhshan]

Dell Latitude 3350 14291 Wistron loveland_skl-u Rev a00 schematic

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Technical Specifications

Parameter	Value
Brand	Wistron Corporation
Model	Loveland SKL-U
Motherboard Manufacturer	Wistron Corporation
Project Code	Love14 SKL / Love15 SKL
Board Number	14291
Revision	A00
Date	2015-09-18
Document Number	A31
CPU Platform	Skylake U 2+2
GPU Type	NVIDIA N16V-GM-S
Graphics Architecture	DISCRTE OPTIMUS / UMA
dGPU to UMA Conversion Support	Yes (UMA only installed / DISCRTE OPTIMUS installed)
EC / KBC	NPCT650JAAYX92
EC/KBC Programmable	Yes (SPI 16MB Flash ROM)
Audio Codec	Realtek ALC3246
BIOS / SPI Flash	16MB Flash ROM
Charging IC	BQ24780RUYR
Charger Architecture	Battery charger (BT+, DCBATOUT, AD+)
Power IC(s)	APL5930KAI-TRG, NCP81253MNTBG, SY8208DQNC, RT6576DGQW, NCP81208MNTXG, NCP81382MNTXG, M5938ARD1U, TPS51716RUKR
RAM Type	DDR3L
RAM Architecture	2x SODIMM (Channel A & B)
RAM Quantity / Slots	2
Card Reader IC	Realtek RTS5170
LAN IC	Realtek RTL8111G
WiFi / WLAN IC	Intel AC 3160
HDMI Level Shifter	Realtek RTD2168-CGTDP
Thermal Sensor	MEC1404-NU-G
USB Hub IC	PS2266

Technical Summary

This Wistron Loveland SKL-U motherboard (Board Number 14291, Revision A00) is built around the Intel Skylake U 2+2 CPU platform with a SKL PCH-LP. The graphics subsystem supports both UMA-only and discrete NVIDIA N16V-GM-S OPTIMUS configurations, with documented conversion capability between UMA and DIS modes. System memory consists of two DDR3L SODIMM slots supporting up to 1600 MHz. The embedded controller is an NPCT650JAAYX92 with a 16MB SPI Flash ROM for BIOS and EC firmware storage. Power management is handled by a BQ24780RUYR battery charger and multiple DC/DC converters including NCP81253, SY8208, RT6576, NCP81208, NCP81382, M5938, and TPS51716. Audio is provided by a Realtek ALC3246 HDA codec. Networking includes a Realtek RTL8111G Gigabit LAN and an Intel AC 3160 wireless combo module. A Realtek RTS5170 card reader, Realtek RTD2168-CGTDP VGA converter, and MEC1404 thermal sensor complete the peripheral set.

Technician FAQ

Q: What BIOS/EC flash configuration is used on this motherboard?

A: The motherboard uses a single 16MB SPI Flash ROM for both BIOS and EC firmware storage, with the EC being an NPCT650JAAYX92.

Q: Does this motherboard support dGPU to UMA conversion?

A: Yes. The schematic explicitly documents both UMA-only and DISCRTE OPTIMUS installed configurations

Indexed motherboard components

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

LOVE14 Project Code LOVE15 Project Code 14291 Board Number Skylake-U CPU Platform N16V-GM-S Graphics DISCRTE OPTIMUS / UMA Graphics NPCT650JAAYX92 EC / KBC ALC3246 Audio Codec BQ24780RUYR Charging / PD IC APL5930KAI-TRG Power IC M5938ARD1U Power IC NCP81208MNTXG Power IC NCP81253MNTBG Power IC NCP81382MNTXG Power IC RT6576DGQW Power IC SY8208DQNC Power IC TPS51716RUKR Power IC DDR3L RAM Type RTS5170 Card Reader IC RTL8111G LAN Controller AC 3160 WiFi / WLAN RTD2168-CGTDP Signal Conditioning IC MEC1404-NU-G Thermal / Fan Control PS2266 USB Controller