Thermaltake Smart SP-430P 430W Measurements

Voltage Regulation

+3.3V Regulation/Ripple and Noise
Load Voltage
5% 3.29V (4mV)
10% 3.29V (10mV)
20% 3.28V (18mV)
50% 3.27V (24mV)
80% 3.25V (36mV)
100% 3.24V (38mV)
110% 3.24V (43mV)
Crossload +12V max. +0.61%
Crossload +3.3V/+5V max. +0.30%


+5V Regulation/Ripple and Noise
Load Voltage
5% 4.98V (8mV)
10% 4.98V (11mV)
20% 4.97V (17mV)
50% 4.94V (30mV)
80% 4.91V (34mV)
100% 4.88V (40mV)
110% 4.88V (45mV)
Crossload +12V max. +1.00%
Crossload +3.3V/+5V max. -2.60%


+12V Regulation (Worst Ouput)/Ripple and Noise (Worst Output)
Load Voltage
5% 12.14V (9mV)
10% 12.08V (11mV)
20% 12.05V (20mV)
50% 11.99V (25mV)
80% 11.95V (29mV)
100% 11.87V (35mV)
110% 11.86 V (45mV)
Crossload +12V max. -4.25%
Crossload +3.3V/+5V max. +3.25%

Noise Levels

Sound Pressure Level (Ambient: 16dBA, 1m distance) and Temperatures (Δϑ to 24.5 °C ambient temperature)
Load Opinion
5% 17 dBA (0.8°C)
10% 18 dBA (2.6 °C)
20% 20 dBA (4.9 °C)
50% 22 dBA (6.7°C)
80% 26 dBA (8.5 °C)
100% 26 dBA (9.1 °C)
110% 26 dBA (10.7 °C)

Efficiency and PFC

Efficiency and Power Factor 115 VAC
Load Efficiency PFC
5% 61.92% 0.872
10% 72.88% 0.902
20% 79.81% 0.926
50% 82.34% 0.938
80% 81.91% 0.942
100% 81.52% 0.949
110% 81.19% 0.957


Efficiency and Power Factor 230 VAC
Load Efficiency PFC
5% 63.31% 0.790
10% 74.09% 0.835
20% 80.87% 0.896
50% 83.64% 0.937
80% 83.19% 0.967
100% 82.84% 0.973
110% 82.23% 0.975

Efficiency is one of the lowest we've seen in this review; even worse than what Rasurbo is able to provide. Both have the same 80Plus certification and HEC ist the manufacturer. During 20% load Thermaltake didn't even surpass the minimum requirement. As if this wasn't enough ripple was very high on the smaller outputs.

Thermaltake Smart SP-430P 430W -1 Rosewill Green Series RG430-S12 430W -1


View All Comments

  • pvdw - Wednesday, July 4, 2012 - link

    Here's some good ones to look at in 350W-450W range:

    Seasonic X-400 Fanless
    Seasonic S12II-380
    Silentmaxx Fanless 400W MX460-PFL01
    Nexus Value 430
    Seasonic M12II-430

    And just above the 450W range, but unlikely to use any more power in most systems are these good ones:

    Enermax Modu/Pro87+ 500W
    Kingwin STR-500
  • pvdw - Wednesday, July 4, 2012 - link

    BTW, though I really enjoy most Anandtech articles, your PSU ones can't beat SilentPCReview. But then I can't see how you could do better without an anechoic chamber

    Check out their list of recommended supplies:
  • A5 - Wednesday, July 4, 2012 - link

    The cheapest PSU on that list is well over $100, which is more than double the most expensive one in this article, which is about finding a good "cheap" PSU.

    I'm glad AT did this article as it should encourage a little more competition in the low-end space.
  • knutjb - Wednesday, July 4, 2012 - link

    In my experience I've had a couple low end PSUs do bad things to MBs even though they were modestly loaded. After using a number of different manufacturers all I buy are Seasonics. I get them when they are on sale.

    I have a 9 yr old 600 S-12? on its second system and the output measures the same as it did when new. Blow out the dust occasionally and it just works. Even in low end systems I don't trust inexpensive PSUs, their quality control is all but non-existent with wide variation in samples.

    You get what you pay for and I don't like buying things twice.
  • pvdw - Thursday, July 5, 2012 - link

    A quick search turns up this link:

    The Seasonic S12II 430 for $60 shipped. Or the 380W for $54 shipped.
  • clarkn0va - Friday, July 6, 2012 - link

    Seasonic SS-350ET

    Supposedly not as quiet as their retail offerings, but always inexpensive. I would like to see how this one holds up against similar offerings.

    Maybe AT needs a Bench section for PSUs?
  • Belard - Wednesday, July 4, 2012 - link

    I've bought some CX models for bottom end PCs for clients...

    But I picked up two 500w models, both were defective.

    1) Defective power connector (at the motherboard)...

    2) Flutter fan noises.

    Returned them, bought Thermaltake TR2s.
  • piroroadkill - Wednesday, July 4, 2012 - link

    When the Corsairs first hit the scene, the HX series were all Seasonic.

    Corsair is a nice rebrander, but I go straight to Seasonic for my own system's PSU these days. I have a Seasonic X-660..
  • Arnulf - Wednesday, July 4, 2012 - link

    Great article !

    I wish you could round up even more models and/or present the results in a common bench-like database (you know, like the CPU comparison etc.) where different models coudl be added over time.
  • silverblue - Wednesday, July 4, 2012 - link

    Enermax NAXN ENP450AWT-B 450W - £60 at Scan:
    (Unfortunately, out of stock)

    Rasurbo RAP350 350W - £44 inc. delivery on eBay:

    The 450W variant - £58 inc. delivery on eBay:

    Corsair CX430 V2 430W - from £35 inc. delivery:

    You can find FSP Hexa, Aurum and Fortron PSUs quite easily; the Aurum 80 PLUS Gold 500W is £62 inc. delivery.

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