Antec HCG 520W: A Good PSU for Bargain Hunters
by Martin Kaffei on May 31, 2011 6:55 PM ESTVoltage Regulation
| +3.3V Regulation | |
| Load | Voltage |
| 10% | +2.42% |
| 20% | +2.12% |
| 50% | +1.21% |
| 80% | +0.61% |
| 100% | +-0% |
| 110% | -0.61% |
| +5V Regulation | |
| Load | Voltage |
| 10% | +1.80% |
| 20% | +1.40% |
| 50% | +0.60% |
| 80% | -0.20% |
| 100% | -1.40% |
| 110% | -1.80% |
| +12V Regulation (Worst Rail) | |
| Load | Voltage |
| 10% | +1.92 % |
| 20% | +1.75 % |
| 50% | +1.50 % |
| 80% | +0.42 % |
| 100% | +0.33 % |
| 110% | +0.17 % |
Like most PSUs the Antec HCG 520W has a low voltage drop on +12V; even at overload the voltage is above 12.00V, which is a good sign for a strong single rail. The other rails also perform well. +3.3V starts high but that shouldn't be a problem since the measurement is still within specification. +5V ends like it starts with a 1.8% difference to the optimal value.
Ripple and Noise
| +3.3V Ripple Quality | |
| Load | Ripple and Noise |
| 10% | 7mV |
| 20% | 8mV |
| 50% | 10mV |
| 80% | 11mV |
| 100% | 13mV |
| 110% | 16mV |
| +5V Ripple Quality | |
| Load | Ripple and Noise |
| 10% | 5mV |
| 20% | 6mV |
| 50% | 8mV |
| 80% | 9mV |
| 100% | 10mV |
| 110% | 11mV |
| +12V Ripple Quality (Worst Rail) | |
| Load | Ripple and Noise |
| 10% | 9mV |
| 20% | 11mV |
| 50% | 12mV |
| 80% | 20mV |
| 100% | 35mV |
| 110% | 38mV |
The HCG-520 shows slightly better results than the 750W version. +12V stays under 40mV while +3.3V and +5V don't even reach the magic 20mV level. The value on +12V increases a lot when running 80% load or more, but the results are still impressive. With good quality outputs, PCs using this PSU should experience fewer component failures and be more likely to last a long time.
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Jeff H - Wednesday, June 8, 2011 - link
No sooner did I read Anandtech's reveiw of the Antec HCG-520 than my home pc died. Figured it was either the p.s. or the motherboard.Ordered the HCG-520 from the egg late last week. Received it today, installed it and my pc came to life. I'm impressed w/ sleeving and cables for a budget p.s., as well as its low noise level.
Myr - Tuesday, July 12, 2011 - link
Hello, i had this PSU for 6 months now in its box, and i am going to put it in a new system in one hour or two, and this is why i glad i run into your review.But first things first, very nice review!
My problem is that my XFX 6950 asks for 2*6 pin 75W connectors, and specically says NOT to use a Y connector or anything else, it wants 2 cables while the PSU has only one.
So the question is, should i connect both, or use a connector on a 4pin molex to get the job done?
Thanks in advance
ghd nz - Monday, January 7, 2013 - link
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