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SilverStone SX500-G PSU Review

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
OCP12V: 58A (139%) 5V: 35.4 (161%) 3.3V: 40.7A (185%) - Noticed a smell from the PSU 5VSB: 4.5A (180%)
OPP702.4W (140.5%)
OTP✓ (195°C @ secondary side)
SCP12V: ✓ 5V: ✓ 3.3V: ✓ 5VSB: ✓ -12V: ✓
PWR_OKOperates properly
SIPSurge: MOV Inrush: NTC thermistor & bypass relay

OCP at +12V is set high (and even higher on the minor rails). Apparently, High Power thought it was designing a 1kW power supply and not a 500W one. So, the company decided to allow more than 40A at 3.3V. When we ran our OCP test on that rail, we noticed a smell coming from the PSU. We are pretty sure that if we applied 40A for much longer, the 3.3V VRM would eventually die.

Over-temperature protection is set pretty aggressively as well.

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Aris Mpitziopoulos is a Contributing Editor at Tom's Hardware US, covering PSUs.