Transient Response
20% Load – 20ms
| Advanced Transient Response 20% - 50 Hz - No Caps | ||||
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.076V | 11.775V | 2.49% | Pass |
| 5V | 5.066V | 4.973V | 1.83% | Pass |
| 3.3V | 3.359V | 3.266V | 2.76% | Pass |
| 5VSB | 5.002V | 4.945V | 1.15% | Pass |
50% Load -20ms
| Advanced Transient Response 50% - 50 Hz - No Caps | ||||
| Voltage | Before | After | Change | Pass/Fail |
| 12V | 12.043V | 11.759V | 2.35% | Pass |
| 5V | 5.062V | 4.972V | 1.78% | Pass |
| 3.3V | 3.355V | 3.260V | 2.83% | Pass |
| 5VSB | 4.970V | 4.900V | 1.42% | Pass |
The transient response is mediocre at 12V because the applied load stresses this low-capacity PSU. On the other hand, the minor rails behave well in these tests.
Transient Response ATX v3.1 Tests
This PSU doesn’t have a high-power PCIe connector, so the maximum transient loads are restricted to 150%. The PSU passes all ATX v3.1 transient response tests with flying colors! For those of you wondering why, in the 150% test, the 12V rail’s deviation is lower than at 145%. The difference between these load levels is low at just 5%. On the other hand, the 145% transient load lasts much longer (10x more), applying higher stress to the PSU.
I won’t provide any comparison ATX v3.1 transient response tests in this review because all other SFX PSUs I have evaluated so far were tested at different transient loads because they have high-power connectors (12V-2×6 or 12VHPWR).
Do you think that the 750/850 version are better? White and black version has a good price on aliexpress :).
I don’t have a clue since I haven’t tested them. Better take a PSU with proper support.
Great review, definitely worried about its inrush current, which seemed really high. I also found TR-TPFX-650 (Platinum), would you be able to do a review on it? I mean it claims to use better material, but barely any review out there.
https://computerorbit.com/products/650w-thermalright-tpfx-650-platinum-modular-sfx-psu?_pos=1&_psq=thermalright+tpfx&_ss=e&_v=1.0
Thanks
Only if TR sends me a sample. I cannot find them here in Cyprus.
Can you do a review of the Thermalright TP-1000/1200? There’s a frustratingly low amount of information about it. Thanks in advance.
If I manage to find them sure.