Sycom starts shipping its Hydro LC Graphics Plus RTX 5090 systems with full-cover water block and Noctua fans

Japanese system integrator Sycom has started selling its Hydro LC Graphics Plus GeForce RTX 5090 in complete gaming PCs. The card uses the Lynk+ full-cover water block that the company previously showed as an engineering sample and pairs it with three Noctua NF-A12x25 G2 PWM 120 mm fans on a 360 mm radiator. As before, the card is only available as part of Sycom’s prebuilt systems and is not sold as a standalone product.
The custom card is based on NVIDIA’s GeForce RTX 5090 GPU with 21,760 CUDA cores and 32 GB of GDDR7 memory. The memory bus is 512-bit and runs at 28 Gbps. The GPU base clock is listed at 2017 MHz and the boost clock at 2452 MHz (so no factory overclocking). Board power is rated at 575 W, and the card uses a single 16-pin power connector, a PCIe 5.0 x16 interface, and occupies two slots.
Source: Sycom
Sycom replaces the usual hybrid layout with a full-cover copper cold plate that cools the GPU, memory, and VRM at the same time. The loop is connected to a 360 mm radiator cooled by three Noctua NF-A12x25 G2 PWM fans, which should improve performance under sustained loads compared to air-cooled designs.
Source: Sycom
In Sycom’s own Furmark stress test at 100% GPU load, the Hydro LC Graphics Plus RTX 5090 reportedly ran at 62.6°C with 40.8 dB noise, while a reference “Company A” air-cooled RTX 5090 reached 79.8°C and 43.6 dB, so the company is clearly targeting lower temperatures and noise for long gaming or compute sessions.
Source: Sycom
The first system to feature this GPU is the G-Master Hydro Extreme X870A. The standard configuration pairs the water-cooled RTX 5090 with an AMD Ryzen 9 9950X3D, an X870E motherboard, 64 GB of DDR5-5600 memory, and a 2 TB PCIe Gen5 NVMe SSD.
Source: GDM
This build is listed at 990,280 yen in Japan, which is roughly $6,200 at current exchange rates , and buyers can downgrade components to lower the total price.
Source: Sycom