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Thermaltake Toughpower iRGB Plus 1200W Platinum PSU Review

EMC Pre-Compliance Testing

EMC, EMI & EMS Acronyms

Electromagnetic Compatibility (EMC): The ability of a device to operate properly in its environment without disrupting the operation of other close-by devices.

Electromagnetic Interference (EMI): This represents the electromagnetic energy a device emits, which can cause problems in other close-by devices if it is too high.

Electromagnetic Immunity (EMS): Tolerance to electromagnetic emissions.

Equipment & Standards

To properly measure the EMI that a device emits, you need special equipment defined by the CISPR 16-1-1 specification. To learn more about our EMI testing equipment, please check out How We Test Power Supply Units.

In order to minimize EMI noise, some standards have been established. The corresponding standards for Information Technology products are CISPR 22 and its derivative EN 55022. In the EU, every product featuring the "CE" marking has to comply with EN 55022. Both CISPR 22 and EN 55022 divide devices into two classes, A and B. B-class equipment is for domestic environments, so its allowed EMI emissions are significantly lower than for A-class devices.

CISPR / EN55022 Limits

CISRP 22/ EN 55022 Class A Conducted EMI Limit
Frequency of Emission (MHz)Conducted Limit (dBuV)
Quasi-peakAverage
0.15 - 0.507966
0.50 - 30.07360
CISPR 22/ EN 55022 Class B Conducted EMI Limit
Frequency of Emission (MHz)Conducted Limit (dBuV)
Quasi-peakAverage
0.15 - 0.5066 - 5656 - 46
0.50 - 5.005646
5.00 - 30.006050

EMI Results - Average Detector

We get two EMI spikes over the limits at 303.95 kHz and 506.59 kHz. In general, the EMI emissions are high at the lower frequencies.

EMI Results - Peak Detector

Everything appears controlled in this test, though one EMI spike comes close to the limit.


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  • pjmelect
    Your videos don't work I get the error "cannot load m3u8 crossdomain access denied (2048)"
    Reply
  • Co BIY
    Everyone reviews heavily on capacitor quality but how is cap quality determined ? Is it published specs or just reputation / country of origin ?

    The bad cap crisis was over ten years ago are all those makers
    still putting out bad or inconsistent products ?
    Reply
  • Aris_Mp
    The videos work fine for me.

    Caps: Mostly based on experience and the RMA data that I have access to. The quality of the electrolyte is what matters the most.
    Reply
  • Mike Adams
    CapXon & Su'scon caps? more chinese junk for a premium price. I would never buy anything from Thermalsewer
    Reply