Protection Features
| OCP (Cold @ 26°C) | 12V: >104A (>146.87%), <11.776V 5V: >28A (>140%), <5.08V 3.3V: >27.1A (>135.5%), <3.34V 5VSB: >4.3A (>143.33%), <4.903V |
| OCP (Hot) | – |
| OPP (Cold @ 35°C) | >1277.52W (>150.3%) |
| OPP (Hot) | – |
| OTP | ✓ (>185°C @ 12V Secondary) |
|
SCP |
12V to Earth: ✓ |
| PWR_OK | Proper Operation |
| NLO | ✓ |
| SIP | Surge: MOV Inrush: NTC Thermistor & Bypass Relay |
OCP is sky-high on all rails, and to make matters worse, the PSU broke during the cold OPP test, exceeding 150% of its max-rated capacity! To add insult to injury, the second sample broke during the over-temperature evaluation test. It stopped working at 185°C and didn’t start again. HKC needs to take a good look at the protection features.
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Mine has a horrid whine when the fan can’t decide wether it wants to spin or not. This doesn’t seem to be an uncommon issue either which is annoying. So far warranty support has been unhelpful.
I am sorry to hear this. Will try to contact TT and learn more about this.
Great review with alot of detail thanks guys, I’ve read alot of forums and seen videos of numerous people complaining about the Thermaltake SFX850 having loud coil wine at lighter loads (about where the fan just about starts spinning due to load). Was this noticed during the testing of your unit?
we didn’t notice something, else we would have wrote about it, but it can happen yes, with different production batches. By testing 1-2 PSUs only, you can’t have a complete picture about the whole production, sorry.
Exactly the same thing happens to me, the screeching noise that this source emits is unbearable, with the money it is worth and this huge failure.
I have the same problem with the fan 🙁