Page 1:SilverStone ST80F-TI Power Supply Review
Page 2:Packaging, Contents, Exterior And Cabling
Page 3:A Look Inside And Component Analysis
Page 4:Load Regulation, Hold-Up Time And Inrush Current And Protections
Page 5:Efficiency, Temperature And Noise
Page 6:Protection Features Evaluation
Page 7:Cross-Load Tests And Infrared Images
Page 8:Transient Response Tests
Page 9:Ripple Measurements
Page 10:Performance, Performance Per Dollar, Noise and Efficiency Ratings
Page 11:Pros, Cons And Final Verdict
Protection Features Evaluation
If you want to know more about PSU protection technologies, check out our PSUs 101 article.
Our protection features evaluation methodology is described in detail here.
5V: 36.4A (165%)
3.3V: 37A (168%)
|OTP||Yes (at 47 °C ambient)|
|PWR_OK||Does not function correctly|
|SIP||Surge Protection: MOV|
Inrush Protection: NTC (lacks bypass relay)
Over-temperature protection kicks in at around 47 °C ambient. Since the PSU is only rated at up to 40 °C for full power delivery, this trigger point appears to be set correctly. On the contrary, the OPP point is set way too high. To make matters even worse, it allows for excess ripple on the +12V and 3.3V rails. Given that this platform suffers from poor ripple suppression, SilverStone should restrict the OPP triggering point close to the PSU's max power rating. Moreover, OCP on the minor rails is set high. We stopped at 4A on the 5VSB rail since that's already 160% higher than its nominal capacity.
As expected, there is SCP on all rails, including the -12V one, and the unit is able to operate properly with no load on its rails. On the other hand, the PWR_OK signal drops when the rails are already out of spec (way too late). There is surge protection, and an NTC thermistor is used for lowering inrush currents. Unfortunately, there is no bypass relay to cool it down quickly.
Load Regulation Charts (Max Rated Power to OPP Triggering Point)
The load regulation deviations in each of the charts below were calculated by taking the nominal values of the rails (12V, 5V and 3.3V) as point zero.
Ripple Charts (Max Rated Power to OPP Triggering Point)
- SilverStone ST80F-TI Power Supply Review
- Packaging, Contents, Exterior And Cabling
- A Look Inside And Component Analysis
- Load Regulation, Hold-Up Time And Inrush Current And Protections
- Efficiency, Temperature And Noise
- Protection Features Evaluation
- Cross-Load Tests And Infrared Images
- Transient Response Tests
- Ripple Measurements
- Performance, Performance Per Dollar, Noise and Efficiency Ratings
- Pros, Cons And Final Verdict