Seasonic Focus GX 1000W Gold – High-end PSU with 10-Year Warranty

About the Seasonic Focus GX 1000W Gold PSU

The Seasonic Focus GX 1000W Gold is built for enthusiasts who need reliable power delivery for high-end gaming and workstation builds. This fully modular PSU provides 1000W of continuous power with 80+ Gold efficiency certification, making it ideal for RTX 50 series graphics cards and multi-GPU configurations. Seasonic's reputation as an OEM manufacturer for premium brands means you're getting the same quality that powers other flagship PSUs. The 10-year warranty reflects the build quality and longevity you can expect from this unit.

What This Seasonic Focus GX 1000W Gold Does for You

This best power supply unit for gaming PC builds handles demanding components without breaking a sweat. The 1000W PSU for RTX 5090 systems provides enough headroom for CPU and GPU overclocking while maintaining stable voltage under load. Its 80+ Gold efficiency rating means less wasted electricity, which translates to lower power bills and less heat output in your case. The fully modular cable design lets you connect only the cables you need, reducing clutter and improving airflow. S3FC fan control keeps the 135mm Fluid Dynamic Bearing fan silent during light loads, then ramps up intelligently when temperatures rise. This matters for gaming PC Singapore builders who value both performance and quiet operation.

Build Quality and Reliability

Seasonic designed this PSU with premium components rated for 100,000 hours MTBF at 25°C. The single 12V rail delivers 83A of clean, stable power to your GPU and CPU without voltage ripple issues. Full protection features include over-power, over-voltage, under-voltage, over-current, over-temperature, and short-circuit safeguards. These protections prevent damage to your expensive components if something goes wrong. The compact 140mm depth fits most ATX cases without blocking motherboard connectors or drive bays.

Perfect For

• High-end gaming builds with RTX 5090 or RTX 5080 graphics cards requiring reliable power delivery for 4K gaming
• Content creation workstations running multiple storage drives and high-core-count CPUs
• Enthusiasts who plan to overclock their CPU and GPU for maximum performance
• System builders who value long-term reliability and want a PSU that outlasts other components

Why Buy from Mansa Computers

• 10-year Singapore warranty with Seasonic service support
• Fast WhatsApp inquiry response for technical questions about compatibility
• Open 7 days a week for support and advice
• Home delivery available across Singapore

Technical Specifications Summary

Total Power
1000W Continuous

Efficiency Rating
80+ Gold Certified

Form Factor
ATX/EPS

Modular Design
Fully Modular

Fan Size
135mm Fluid Dynamic Bearing

Fan Control
S3FC with Fanless Mode

12V Rail
83A (996W)

Warranty
10 Years

The Seasonic Focus GX 1000W Gold gives you flagship-level power delivery with a decade of warranty coverage. Order yours today from Mansa Computers and build your system on a foundation of reliable, efficient power.

Model
FOCUS GX-1000

80PLUS®
Gold

Cybenetics Efficiency Level
TBA

Cybenetics Noise Level
TBA

Form Factor
ATX/EPS

Dimensions
140 × 150 × 86 mm

Fan Size
135mm

Fan Control
S3FC (including Fanless Mode)

Fan Bearing
Fluid Dynamic Bearing

Life Expectancy
50,000 hours at 40 °C, 15 % - 65 % RH

Cable Information
Fully Modular

Operating Temperature
0 - 40 °C

MTBF @ 25 °C, excl. fan
100,000 hours

AC Input
Full Range

Protection
OPP, OVP, UVP, OCP, OTP, SCP

Safety and EMC
cTUVus, TUV, CB, CCC, BSMI, EAC, CE

Environmental Compliance
Energy Star, RoHS, WEEE, ErP Lot 6, REACH

AC Input
100 V - 240 V
13 - 6.5 A
50 Hz - 60 Hz

DC Output
Rail: +3.3V, +5V, +12V, -12V, +5VSB
Maximum Power: 25A 125W, 25A, 83A 996W, 0.3A 3.6W, 3A 15W
Total continuous power: 1000 W

10 YEARS WARRANTY 

Corbell Technology Pte Ltd
4012 Ang Mo Kio Ave 10 #06-04, Techplace 1,
Singapore 569628
Contact: 6452 4122

Frequently Asked Questions About Seasonic Focus GX 1000W Gold

Is 1000W enough for RTX 5090 builds?

Yes, the Focus GX 1000W Gold provides sufficient power for RTX 5090 systems with headroom for overclocking. The single 12V rail delivers 83A of stable power, which covers the GPU's peak draw plus CPU and other components. This leaves room for future upgrades without replacing your PSU.

Does this PSU support fanless operation?

Yes, the S3FC fan control includes fanless mode for low loads. The 135mm fan stays completely silent during web browsing or light tasks. It spins up intelligently only when temperatures rise during gaming or heavy workloads, keeping noise levels low.

Will this fit my ATX case?

The Focus GX 1000W Gold measures 140mm deep, which fits standard ATX cases. Check your case specifications to confirm PSU clearance, especially if you have a compact mid-tower. The fully modular cables make installation easier in tight spaces.

What's covered under the 10-year warranty?

Seasonic's 10-year Singapore warranty covers manufacturing defects and component failures. You get local service support through authorized centers, eliminating overseas shipping for RMA. Mansa Computers helps coordinate warranty claims and provides fast WhatsApp support for any issues.

How does this compare to cheaper 1000W PSUs?

The Focus GX 1000W Gold uses premium components with 100,000-hour MTBF rating versus budget units that fail within 2-3 years. 80+ Gold efficiency saves electricity costs long-term. The 10-year warranty shows Seasonic's confidence in build quality compared to 3-5 year warranties on cheaper alternatives.

How long will it take to receive my purchase?

Standard Shipping - 3 to 5 days
Express Shipping - 1 to 2 days

Can I opt for store pickup?

Yes, we are open daily for collection from 11 AM - 6.30 PM.

Address: 1 Ubi View #01-22, Focus One Building Singapore 408555 (Door located nearest to carpark exit gantry)

We will contact you once your order is ready for collection!