Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
Protection Features
Check out our PSUs 101 article to learn more about PSU protection features. Our protection features evaluation methodology is described in detail here.
| Protection Features | |
|---|---|
| OCP | 12V: - 5V:36.75A (245%) 3.3V: 33.30A (167%) 5VSB: 4.3A (172%) |
| OPP | 754.583 (126%) |
| OTP | ✓ (>130°C @ secondary side) |
| SCP | 12V: ✓ 5V: ✓ 3.3V: ✓ 5VSB: ✓ -12V: ✓ |
| PWR_OK | Operates properly |
| NLO | ✓ |
| SIP | Surge: ✓ Inrush: NTC thermistor & bypass relay |
The OCP limits on the minor rails are very high (especially on the 5V rail), and close to what we usually see at 5VSB.
OPP is configured conservatively, since this is a PSU with very high power density. There's really not much headroom for overpower conditions.
Of course, we checked over-temperature protection and indeed the SDA600 shuts down with anything higher than 130°C on its secondary side.
Finally, the measured hold-up time is less than ideal, but at least the power-good signal is accurate. There seems to be surge protection. And large inrush currents are effectively suppressed by a small NTC thermistor.
MORE: Best Power Supplies
MORE: How We Test Power Supplies
MORE: All Power Supply Content
Netherlands tightens export controls on sanctioned semiconductor equipment — move made in line with U.S. limitations, ASML will apply for licenses from the Dutch government
Nvidia Blackwell RTX 50-series Founders Edition graphics cards — Details on the new design, cooling, and features of the reference models
Nvidia neural rendering deep dive — Full details on DLSS 4, Reflex 2, mega geometry, and more
