The GAMDIAS HELIOS P2-1000G is a 1000W, 80 PLUS Gold, fully modular ATX 3.1 power supply for high-end gaming PCs. Its native 12VHPWR cable delivers a full 600W to RTX 50 series cards, with real headroom for RTX 5080 and RTX 5090 builds.
Key features
- 1000W continuous and 1300W peak output
- 80 PLUS Gold, up to 92% efficiency at 50% load
- Native 16-pin 12VHPWR cable rated at 600W, no adapter needed
- ATX 3.1 and PCIe 5.1, handles power excursions up to 200%
- Fully modular flat black cables
- 100% Japanese industrial-grade capacitors and a 135mm FDB fan
Specifications
| Output | 1000W continuous / 1300W peak |
|---|---|
| Efficiency | 80 PLUS Gold, up to 92% at 50% load |
| Modularity | Fully modular, flat black cables |
| Standard | ATX12V v3.1, PCIe 5.1 |
| GPU cable | 1x native 12VHPWR (16-pin), 600W |
| Connectors | 1x 24-pin, 2x CPU 4+4, 4x PCIe 6+2, 12x SATA, 4x Molex |
| Capacitors | 100% Japanese industrial-grade |
| Fan | 135mm fluid dynamic bearing (FDB) |
| Design | Full DC-to-DC, LLC resonant, Active PFC (0.99) |
| Protections | OVP, UVP, OPP, SCP, OCP, OTP |
| Dimensions | 150 x 150 x 86mm |
Good to know
Two CPU 4+4 connectors cover high-end motherboards that need dual CPU power. The standard 150mm depth fits most ATX cases; it is not an SFX unit. Covered by a two-year warranty against manufacturing defects.
FAQ
Is 1000W enough for an RTX 5090?
Yes. NVIDIA recommends at least 1000W for the RTX 5090, and the P2-1000G meets that with a native 600W 12VHPWR cable. ATX 3.1 support also absorbs short power spikes of up to 200%.
Do I need an adapter for RTX 50 series cards?
No. The 16-pin cable comes from the factory rated at 600W and plugs straight into RTX 50 cards, with no triple 8-pin adapter and a cleaner look inside the case.
What does fully modular mean in practice?
You connect only the cables your build needs, which keeps routing behind the motherboard tidier and improves airflow. The flat black cables bend easily and look neat behind glass.