1,000W Power Capacity (ATX 3.1 Certified)
Powers flagship GPUs such as the RTX 4090 and RTX 5090, with headroom for overclocking and system expansion. ATX 3.1 certification ensures compatibility with modern components and power states, including support for handling GPU power spikes up to 200% for milliseconds - critical for preventing shutdowns during gaming.
Cybenetics Gold Efficiency & A-Rated Noise
Gold efficiency means less energy is wasted as heat, resulting in lower electricity bills over the PSU’s lifetime and quieter operation since the fan doesn’t need to work as hard. The Cybenetics A noise rating confirms acoustics under 30 dBA across typical loads—quieter than a whisper, letting you focus on the game, not the hardware.
Zero RPM Fan Mode (140mm FDB Fan with Manual Override)
The fan completely stops spinning during web browsing, light gaming, and productivity work, eliminating fan noise when you don’t need full cooling. When airflow is needed, the 140mm fan moves more air at lower RPM than smaller fans, staying quiet even under load. The manual override knob lets you force the fan to maximum speed to exhaust heat from the case during extended gaming sessions or stress testing.
Fully Modular Type 4 Cables (100% Japanese Capacitors)
Connect only the cables you need—no excess clutter choking airflow or complicating builds. Type 4 cables work across CORSAIR’s modular PSU lineup, so custom-sleeved cables carry forward to future upgrades. Premium Japanese capacitors rated for 105°C (vs. 85°C in budget PSUs) ensure stable voltage delivery and a longer lifespan, which is especially critical in systems running 24/7 or in warm environments. Backed by a 10-year warranty and 100,000-hour MTBF.
Use Cases
High-power GPU build (RTX 4090/5090, 1000W+, 12VHPWR native):
1,000W continuous at 50°C with ATX 3.1 certification and a native 12V-2x6 cable rated for 600W - no adapters required. Handles 200% GPU power spikes without shutdown. 300W overhead beyond RTX 4090 and flagship CPU loads. 105°C Japanese capacitors ensure stable voltage during extended overclocking sessions.
Quiet system builder (zero-RPM mode, Platinum/Titanium efficiency):
Zero RPM mode completely stops the 140mm fan at loads below 40% - silent during productivity and light gaming. When needed, the fluid-dynamic bearing design stays under 30 dBA at gaming loads (Cybenetics A rating). Platinum efficiency reduces heat, helping to keep fan speeds lower. The manual override knob forces airflow during stress testing and then returns to silence.
Future-proof upgrader (ATX 3.0, headroom for next-gen GPUs):
ATX 3.1 with native 12V-2x6 supports RTX 40/50 Series and future GPUs. 1,000W power supply handles 450-575W graphics cards and high-power CPUs without strain. Type 4 cables are compatible with future CORSAIR PSUs. 10-year warranty and 100,000-hour MTBF outlast multiple GPU generations—upgrade graphics three times, buy PSU once.
Reliable workstation user (long warranty, full protections, 24/7 operation):
Rated for continuous 50°C operation with 100% Japanese 105°C capacitors, the RM1000x handles 24/7 workloads in warm environments. Full protection suite prevents faults from damaging Threadripper CPUs or professional GPUs. 100,000-hour MTBF means 11+ years of continuous operation, backed by a 10-year warranty.
Yes. The RM1000x includes a native 12V-2x6 (12+4-pin) cable rated for 600W, designed for RTX 4090, RTX 5090, and other modern high-power GPUs. No adapters needed—just plug directly into your GPU's 12V-2x6 port.
Cybenetics Gold is roughly equivalent to 80 PLUS Gold (87-90% efficiency at typical loads) but uses more rigorous testing across a wider load range. Both certifications mean the RM1000x wastes less energy and heat, reducing electricity costs and keeping your system cooler and quieter.
Yes. The RM1000x delivers 1,000W of continuous power and is ATX 3.1-compliant, meeting NVIDIA’s requirements for RTX 4090 (450W) and RTX 5090 (575W) with headroom for the rest of your system. The included 12V-2x6 cable handles GPU power spikes up to 200% for milliseconds without tripping protections.
Cybenetics A-rated for noise, meaning under 30 dBA across typical gaming loads—quieter than a whisper. Zero RPM mode keeps the fan completely off during light use. Even at full load, the 140mm fan stays quieter than smaller 120mm fans found in competing PSUs.
Yes, if they're Type 4 cables. The RM1000x uses CORSAIR's Type 4 connector standard, so cables from other Type 4 PSUs (RMx, RMi, HXi, AXi series) are fully compatible. Never mix cables from different PSU brands or connector types—this can potentially damage components.
It overrides Zero RPM mode and the automatic fan curve, forcing the fan to spin at higher speeds. Use it when you want maximum airflow to exhaust heat from your case during extended gaming, stress testing, or in warm ambient conditions. Leave it off for normal quiet operation.
Yes, with headroom. An i9-14900K draws up to 253W, RTX 4090 up to 450W, plus 100-150W for the rest of the system components, totals around 800-850W peak. The RM1000x provides 150W+ of overhead for power spikes and future GPU upgrades.
Included: 1x 24-pin ATX (610mm), 2x EPS 8-pin (4+4) CPU (750mm), 1x 12V-2x6 PCIe (650mm), 4x PCIe 8-pin (6+2) (650mm), 3x SATA cables with 4 connectors each (850mm), 2x PATA cables with 3 connectors each (750mm). All cables are embossed Type 4 with low-profile combs.
Yes. The RM1000x includes two EPS 8-pin (4+4) CPU power cables, supporting dual-CPU workstation motherboards or high-power single-CPU boards that require two EPS connectors (like some X299 or TRX40 boards).
The RM1000x SHIFT relocates the cable connectors to the side of the PSU for cleaner cable routing in reverse-connector cases. Otherwise, specs are identical: same 1,000W output, Cybenetics Gold efficiency, ATX 3.1 compliance, and 10-year warranty. Choose SHIFT for reverse-connector builds, standard RM1000x for traditional cases.
Both orientations work. Fan-down (intake from bottom) is ideal if your case has a ventilated PSU compartment—cooler air and less dust. Fan-up (intake from inside case) works if the bottom vent is blocked, or you want to exhaust some case heat. Zero RPM mode works in either orientation.
Full suite: OVP (over-voltage), UVP (under-voltage), OCP (over-current), OPP (over-power), SCP (short-circuit), and OTP (over-temperature). These protections shut down the PSU before damage occurs to your components during power anomalies or faults.
The RM1000x measures 160mm (L) x 150mm (W) x 86mm (H)—standard ATX dimensions. It fits any case with an ATX PSU mount. Check your case specs to confirm clearance, especially in compact cases with drive cages near the PSU area.
Yes. ATX 3.1 compliance includes Modern Standby support, allowing your PC to wake from sleep states faster and maintain network connectivity in low-power modes—similar to how smartphones stay connected while sleeping.
10 years. CORSAIR backs the RM1000x with a decade-long warranty covering defects and failures. The 100,000-hour MTBF rating means it's built to last well beyond the warranty period, even with 24/7 operation.