Glacier EZ-FIT G40 ASUS GPU Block
PH-GEF_GPU4090AS
The Phanteks’ Glacier G40 ASUS GPU Block provides a high-performance water-cooling solution custom-designed for the latest Asus ROG Strix / TUF Gaming RTX 4090 cards. The Glacier G40 ASUS GPU Block brings the ultimate cooling performance with some unique water block features to build amazing water-cooled systems.
The Glacier G40 ASUS GPU Block also introduces some new features, such as a new fitting location to allow for better tube routing, even in more compact chassis. To improve stability, a GPU support bracket is added to connect the water block to the rear PCI bracket so the GPU is mounted more securely.
Colors
High Class Performance


New Design Features
Integrated D-RGB lighting


Specifications
General
Model No.
PH-GEF_GPU4090AS_DBK01
UPC Code
886523702092
Type
GPU Water-block
Color
Black
Compatibility
ASUS ROG Strix GeForce RTX® 4090 24GB
ASUS ROG Strix GeForce RTX® 4090 OC Edition 24GB
ASUS TUF-RTX4090-O24G-GAMING
ASUS TUF-RTX4090-24G-GAMING
Water Block Materials
Copper Base, Nickel plated
Acrylic cover
Aluminum covers
Brass stop fitting
Viton o-rings
Backplate Materials
Aluminum covers (Anodized)
Mylar layer with 0.25mm thickness
Technical Details
Supported Tube Size
Hard Tube: OD 16mm
Soft Tube: OD 16mm, ID 10mm
Tube Compatibility
Hard Tube: PETG | Acrylic tube
Soft Tube: PVC tube
LED Number
15
Extra
Net Weight
Water Block Weight
Backplate Block Weight
1.44 kg | 3.17 lbs
82.1 g | 0.18 lbs
Gross Weight
2 kg | 4.4 lbs
Warranty
2 Years limited
Scope of Delivery
1x PH-GEF_GPU4090AS Water-block
1x PH-GB4090ASBP Aluminum backplate
1x PH-NDC Thermal compound
2x Push-in fitting
2x Acrylic plug fitting
3x Fitting insert (for soft tube)
1x D-RGB LED cable (for Phanteks Case)
1x D-RGB mainboard adapter
2x Thermal pad (pre-cut)
1x Support bracket (Anodized)
1x M3x10 screw
4x M2.5×5 screws & washers
2x M2.5×6 screws
8x M2.5×8 screws
1x 8mm Allen key
Support
FAQ
Digital-RGB means that each LED chip can be controlled individually, allowing for multiple colors and effects in a single D-RGB LED strip. While regular RGB LED strips can only show the same color on each LED chip per strip at a time. However, not every Digital-RGB (Addressable) product is the same.
Are plug-and-play. No software is needed, yet it is compatible with software control through MSI or ASUS compatible motherboards if desired. Have custom developed color patterns. We believe D-RGB lighting can be stylish when having the right color/pattern settings, which is why the Phanteks D-RGB controller is pre-installed with custom selected color modes and patterns.
Have 30 LED chips. This is a lot! Having 30 LEDs per product instead of just 8 or 12 creates a much more beautiful color gradient and higher quality lighting. This also means more color tints can be displayed simultaneously in one strip.
Digital-RGB and RGB have a different connector. Digital-RGB uses a 3-pin connector while RGB uses a 4-pin connector. Technical explanation: Digital-RGB uses 5 Volts while RGB uses 12 Volts. Connecting Digital-RGB products and RGB products would cause damage.
Digital-RGB from Phanteks is compatible with Asus Addressable-equipped motherboards and MSI Mystic Light Rainbow-equipped motherboards. Check with the Motherboard specifications if your motherboard has a ‘AURA Addressable Header’ or a ‘Mystic Light Sync Rainbow header’ with 3 pins.
Each D-RGB product uses 1 Ampere. Check the power output with your motherboards specifications to determine how many D-RGB products can be powered by your mainboards. Currently mainboards support 3 Amperes.
The Phanteks D-RGB controller can support up to 7 D-RGB products when using the remote. If the D-RGB controller is connected to your motherboard a total of 9 D-RGB can be connected to the controller. A maximum of 4 D-RGB products can be connected to a single output port on the controller.
Most of the D-RGB products and compatible mainboards include a mainboard adapter. Simply connect this mainboard adapter to the Addressable or Rainbow port on your mainboard and the Phanteks D-RGB products. D-RGB products from Phanteks can be daisy-chained so you only need one port on your motherboard. Most mainboards also include this motherboard adapter cable.
You can install as many D-RGB controllers as you would like. However they do not connect to each other. Each controller will work, and need to be controlled, individually.
Press and hold the ‘Mode’ for 2 seconds until the LED’s turn off. When using software control please consult with the motherboard manufacturer.