Salim Badakhshan
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Asus ROG Zephyrus GA503QS Rev 2.0 Schematic
Technical Specifications
Technical Summary
The ASUSTeK GA503QS motherboard, project CFL-H_Block Diagram_R1.3B revision R1.0 dated October 13, 2020, is built around an AMD Cezanne/Renoir FP6 CPU platform with a TDP of 35W. Graphics are handled by an NVIDIA GN20E GPU with GDDR6 VRAM. The system uses DDR4 memory in a hybrid configuration with on-board 3200 MHz and SO-DIMM 3200 MHz modules across Channel A and Channel B. The embedded controller is an IT5125VG-192/CX, and audio is provided by a Realtek ALC289-CG codec. The SPI ROM serves as the BIOS flash. Charging is managed by an ISL9238BHRTZ-T slave charger. Networking includes a Realtek RTL8111H-CG LAN controller and a WIFI/BT module. The card reader uses a GL9755-OIY04 controller, and HDMI output is supported by an SN75DP159RSBR retimer. USB connectivity is enhanced by GL9901AS-OJY10 redrivers and PI3DPX1205AZLBEX MUX redrivers.
Technician FAQ
Q: What EC/KBC is used on this motherboard?
A: The embedded controller is an IT5125VG-192/CX.
Q: What is the charging IC and architecture?
A: The charging IC is an ISL9238BHRTZ-T configured as a slave charger.
Q: What is the memory configuration?
A: The motherboard uses DDR4 memory with on-board 3200 MHz (8G or 16G) and SO-DIMM 3200 MHz (8G or 16G) across Channel A and Channel B.
Q: What audio codec is used?
A: The audio codec is a Realtek ALC289-CG.
Q: What LAN and WiFi controllers are present?
A: The LAN controller is a Realtek RTL8111
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | ASUSTeK COMPUTER INC. |
| Model | GA503QS |
| Project Code | CFL-H_Block Diagram_R1.3B |
| Board Number | GA503QSNB1 RD2 EE1001 |
| Revision | R1.0 |
| Date | Tuesday, October 13, 2020 |
| CPU Platform | AMD Cezanne/Renoir FP6 TDP 35W |
| GPU Type | NVIDIA GN20E |
| Graphics Architecture | GDDR6 VRAM (256Mbx32) |
| EC / KBC | IT5125VG-192/CX |
| EC/KBC Package | 06037-00370200 |
| Audio Codec | Realtek ALC289-CG |
| BIOS / SPI Flash | SPI ROM |
| Charging IC | ISL9238BHRTZ-T |
| Charger Architecture | Slave Chager |
| RAM Type | DDR4 |
| RAM Architecture | On-board 3200 MHz (8G or 16G) + SO-DIMM 3200 MHz (8G or 16G) |
| RAM Quantity / Slots | Channel A + Channel B |
| Card Reader IC | GL9755-OIY04 |
| LAN IC | RTL8111H-CG |
| WiFi / WLAN IC | WIFI /BT |
| HDMI Level Shifter | SN75DP159RSBR |
| Power IC(s) | TAS5825MRHBR |
| USB Hub IC | GL9901AS-OJY10 |
| MUX Redriver | PI3DPX1205AZLBEX |
Technical Summary
The ASUSTeK GA503QS motherboard, project CFL-H_Block Diagram_R1.3B revision R1.0 dated October 13, 2020, is built around an AMD Cezanne/Renoir FP6 CPU platform with a TDP of 35W. Graphics are handled by an NVIDIA GN20E GPU with GDDR6 VRAM. The system uses DDR4 memory in a hybrid configuration with on-board 3200 MHz and SO-DIMM 3200 MHz modules across Channel A and Channel B. The embedded controller is an IT5125VG-192/CX, and audio is provided by a Realtek ALC289-CG codec. The SPI ROM serves as the BIOS flash. Charging is managed by an ISL9238BHRTZ-T slave charger. Networking includes a Realtek RTL8111H-CG LAN controller and a WIFI/BT module. The card reader uses a GL9755-OIY04 controller, and HDMI output is supported by an SN75DP159RSBR retimer. USB connectivity is enhanced by GL9901AS-OJY10 redrivers and PI3DPX1205AZLBEX MUX redrivers.
Technician FAQ
Q: What EC/KBC is used on this motherboard?
A: The embedded controller is an IT5125VG-192/CX.
Q: What is the charging IC and architecture?
A: The charging IC is an ISL9238BHRTZ-T configured as a slave charger.
Q: What is the memory configuration?
A: The motherboard uses DDR4 memory with on-board 3200 MHz (8G or 16G) and SO-DIMM 3200 MHz (8G or 16G) across Channel A and Channel B.
Q: What audio codec is used?
A: The audio codec is a Realtek ALC289-CG.
Q: What LAN and WiFi controllers are present?
A: The LAN controller is a Realtek RTL8111
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