1000W Power Supplies

↪ Notes: FDB fan; Hong Hua

↪ Notes: Fan is of questionable quality. Yate Loon DBB. Loose 12V transient response.

↪ Notes: ODM is Dongguan Changhu Electronics Co. Ltd.

↪ Notes: 12VHPWR cable, unknown quality fan (likely sleeve bearing), no claimed OTP. Only teardowns proving platform.

↪ Notes: Semi-digital

↪ Notes: Semi-digital

↪ Notes: The OCP trggering point for the 5VSB line allows for extremely excessive ripple.

↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown

↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown

↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown

↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown

↪ Notes: Due to the platform's limitations, ripple gets fairly high under heavy load but remains within 100mV. OCP is set high on the minor rails.

↪ Notes: Sleeve bearing fan. 12V-2x6 is fixed.

↪ Notes: Very low build quality, basically e-waste

↪ Notes: 1000W model has poor transient response on 12V under 200% spike, other models mediocre. 850/1000W avail. in white.

↪ Notes: 12V-2x6 connector (GPU side) has thermistors to act as an "OTP". Stellar ripple suppression, especially on the minor rails.

↪ Notes: Excellent electrical performance, component quality, and noise profile. 12V-2x6 connector has thermistors to act as an "OTP", optional "5V Boost."

↪ Notes: The 5VSB OCP triggering point allows for excessive ripple. Ripple exceeds requirements for tier A under crossload, 100% load, and 110% overload.

↪ Notes: Fan profile is extremely relaxed, OCP is set way too high on the minor rails, no FFP despite being an extremely expensive platform.

↪ Notes: Much better performance than the 1200W model and fewer issues despite using the same platform.

↪ Notes: Ball bearing fan. No warranty period mentioned, detier to B-.

↪ Notes: Bridgeless PFC, OCP needs tuning on all rails

↪ Notes: Bridgeless PFC, very high component and build quality. OCP needs tuning on all rails. Excellent noise profile.

↪ Notes: Excursion response in the 200% test could be better compared to other units in its class. Excellent noise profile.

↪ Notes: First be quiet! PSU with semi-passive operation.

↪ Notes: 3.3V transient response could be better, overall performance is good, alongside a relatively quiet noise profile.

↪ Notes: OPP is functional but offers only a 7% increase over the nominal value, beyond which the rails fall out of ATX spec for the 1000W model.

↪ Notes: Technically qualifies for tier A by electrical performance alone, but the fan limits it to tier B+.

↪ Notes: Blue label. Tiering is based on electrical performance and should not preclude the usual caveats if buying used power supplies.

↪ Notes: v1, 180mm long. Production continued far past other 2015 RM-x units as the 2018 revision has no 1kW variant.

↪ Notes: Gray label. Per-connector 40A OCP when multi rail is enabled

↪ Notes: Grey label; RM-x v1 with digital monitoring features

↪ Notes: 160mm length

↪ Notes: Semi-digital. Good noise profile. 5VSB OCP is set quite high. Look above for case clearance list.

↪ Notes: Class-leading performance, excellent build quality, relatively quiet for the capacity.

↪ Notes: Grey label; potential issues with heavy transient loads.

↪ Notes: Black label, triangle fan grille. Digital monitoring and semi-passive operation controlled via USB-C connector in software.

↪ Notes: Refresh with included 12V-2x6 cable and listed ATX 3.1 compliance. Actual design appears to be the same internally.

↪ Notes: 10th anniversary limited run, only 100 units with white casing & white LEDs inside.

↪ Notes: 180mm length, Sunon Magnetic Levitation (Maglev) bearing fan.

↪ Notes: 650W has 300W 12V-2x6 cable. Poor 3.3V transient response. All use Hong Hua rifle-bearing fans. Y-shaped fan grille perforations.

↪ Notes: 750/850W: 140mm, 1000/1200W: 150mm. 2023 version includes 12VHPWR cable. Early reports of coil whine and premature failures/DOAs, but supposedly fixed.

↪ Notes:

↪ Notes: The OCP and OPP triggering points are set too high on all rails, especially 5VSB, where it allows for extremely excessive ripple. Good noise profile.

↪ Notes: Very high inrush current, poorly tuned protections on the minor rails; otherwise decent electrical performance.

↪ Notes: Protections need tuning, 5VSB regulation doesn't quite qualify for A tier.

↪ Notes: 850W model can come in white.

↪ Notes: Semi-digital. Outstanding performance per Aris' review.

↪ Notes: OCP is set way too high on the minor rails, which led to failure of the unit during Aris' testing. Detier to B- unless verified fixed.

↪ Notes: The OCP and OPP triggering points are set way too high on all rails.

↪ Notes: Platform visually appears identical to the 916MC platform used in the SAMA XF, which died during OCP testing per LTT Labs. Proceed with caution.

↪ Notes: No performance data, however platform is well reviewed with protections working in similar configs.