Asus ROG G20CB Repair

If the device will not power on, refer to the corresponding troubleshooting page.

If the device is running slow, refer to the corresponding troubleshooting page.

If the device is loud, refer to the corresponding troubleshooting page.

The Asus ROG G20CB is a compact gaming desktop computer that was first released in 2015 as part of ASUS’s Republic of Gamers (ROG) series. Designed with a focus on performance on a smaller scale, the G20CB became known for combining powerful hardware with a sleek, space-saving case. It was targeted at gamers and power users who wanted high-end performance without the bulk of a traditional desktop tower.

The exterior case design includes customizable lighting, minimal front Input and output ports for a cleaner look, and a hidden airflow system that helps manage heat in its small frame. While the community loved the G20CB's compact size and performance, its specialized components and unique layout can make repairs and upgrades more challenging than those of traditional desktops.

One of the key features of the Asus G20CB is its unique dual power adapter system, which uses both a 180W and a 230W adapter to power its high-performance components. Internally, the system supports 6th generation Intel Core i5 and i7 processors, NVIDIA GeForce GTX graphics cards, and up to 32GB of RAM, making it capable of handling modern games and demanding applications when it was released.

As the device has aged, some users have reported power-related issues, including failure to boot or power on. These issues can often be traced to the power supply setup, component wear, or the need for a system reset.

Sources:

https://www.asus.com/news/ss9da1c9pc79ml... 

https://www.techpowerup.com/forums/threa... 

To correctly identify the ASUS ROG G20CB and ensure you are referencing the proper repair information, start by checking the model number label located on the bottom or rear side of the chassis. Look for a label that includes the model name "G20CB" and potentially a longer SKU such as "G20CB-WS51" or similar, depending on the specific hardware configuration. You can also verify the model in Windows by opening the System Information tool (msinfo32) or running the command “wmic csproduct get name” in Command Prompt, which will return the system model (e.g., "G20CB").

The G20CB is distinct for its small form factor, angular design, and customizable LED lighting. It has no visible side panels and uses dual external power supplies, which is unique among gaming desktops. Identifying these features ensures that you are working with the correct system and using compatible replacement parts or instructions. Double-checking this information before beginning any repair will help avoid compatibility issues and support a successful repair experience.

https://edgeup.asus.com/2014/asus-rog-g2... 

https://www.techpowerup.com/forums/threa... 

Model Name: G20CB-PH017T

Size: 9.5L

Operating System: Windows 10 64-bit

CPU (socket): Intel® Core™ i7-6700 up to 4.0GHz (HD Graphics 530)

Chipset (System Platform): Intel® H170

Memory (module): DDR4 2133MHz 8G

Discrete Graphics: NVIDIA GeForce GTX1070 8GB (1HDMI,1DVI,3DP)

Storage: 128GB SATA SSD, 1TB SATA Hard Drive (7200RPM)

Optical Drive: SuperMulti DVD RW

Keyboard Mouse: USB Keyboard / Mouse

LAN: RJ45

WiFi: IEEE 802.11 ac + BT 4.0

Power Supply: 230W+180W Adapter

Card Reader: N/A

Front I/O Port:

2 x USB3.0

1 x Mic Port

1 x Earphone port

Rear I/O Port:

1 x Headphone

1 x Microphone

1 x Line-in

1 x Central Bass

1 x Right Speaker

1 x Left Speaker

1 x RJ45 LAN

1 x HDMI-Out

2 x USB 3.1

2 x USB 3.0

2 x USB 2.0

2 x Power jack

Drive Bay: 3.5″ x 1 for HDD, 2.5″ x 1 for SSD

Serial ATA: 3x SATA 6.0Gb/s ports

Expansion Slot: 1 x PCI-e x 16 (occupied by discrete graphic card if implemented.)

RAM Slots: 2 x DDR4 Short-DIMM Slot

Sources: Product Review 

ASUS ROG G20CB Support Page 

ASUS ROG G20CB User Manual 

ROG Desktop Community Forum