Antec EarthWatts EA 380D Green 380W
by Martin Kaffei on October 2, 2010 7:00 PM EST- Posted in
- Cases/Cooling/PSUs
- PSUs
- Green
- Antec
- Earth Watts
- 380W
Efficiency & PFC
| 230VAC, 50Hz | ||
| Load | Efficiency | PFC |
| 10% | 77.69% | 0.858 |
| 20% | 84.99% | 0.891 |
| 50% | 87.58% | 0.936 |
| 80% | 85.56% | 0.951 |
| 100% | 84.30% | 0.958 |
| 110% | 83.28% | 0.964 |
| 115VAC, 60Hz | ||
| Load | Efficiency | PFC |
| 10% | 79.34% | 0.916 |
| 20% | 84.03% | 0.969 |
| 50% | 85.58% | 0.973 |
| 80% | 83.87% | 0.978 |
| 100% | 82.61% | 0.981 |
| 110% | 81.12% | 0.984 |
The sample reaches just 78% efficiency at 10% load, but at all other loads it's above 80%. The peak efficiency on 230VAC is 87.58%. At higher loads it slightly decreases and 83-84% is reached at full load. These are common results. The power factor reaches between 0.858 and 0.964. If we switch to 115VAC, the power factor always stays above 0.900 with a maximum of 0.984.
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decto - Monday, October 11, 2010 - link
I've used and installed many of the older EA 380 units which are also 80+ rated and now a couple of these.You can power a lot with them, a 3Ghz Q6600 and power sucking Radeon HD2900 or how about Q6600 and 8800GTS G92 512MB SLI. Both ran fine for regular extended gaming sessions.
I currently have one in an X2 5000 home server with a nvidia 7025 itx mainboard. Consumption is around 40W at idle so a quick calculation later (77% net @ 38W) and It's £7 ukp ($11 usd) per year of waste electricity for 24 / 7 / 365 operation.
While pico PSU and mini itx can be more efficent, the cost of the hardware negates the energy savings over a typical system lifetime.
As per a previous post, it would be good to see an article for low power systems <50W and <100W as more of us are using a purpose built 'efficient' home server or media centre and the data to make environmental and TCO based buying decisions is very hard to find.
Congratulation on the real world review.
More please.
Spazweasel - Thursday, October 14, 2010 - link
Using the power supply calculator at http://extreme.outervision.com/PSUEngine with a typical moderate gaming build:Clarkdale i5 650 with a modest overclock (3.6ghz, 1.33v vcore)
4gb DDR3 RAM (2x 2gb)
GTX 460 1gb (single card)
1 SATA hard drive
1 DVD-RW
Using on-board audio
1 additional 120mm cooling fan
25% additional capacitor aging factor
Their recommended power supply? 392 watts.
Yeah. This power supply for a moderate gaming rig is JUST FINE. If you're running a high-end system, sure, get that 750w unit. But recognize that even among gamers, that's hardly the typical build. And really, this "alpha nerd" BS where people get sneered at because they're not running water-cooled +50% overclocks with quad-SLI video subsystems... we can do without that. Nice system, sure, but the degree to which someone gets to look down their nose at someone else isn't tied to FSB speed.
Matias - Wednesday, December 7, 2011 - link
For the record, this Antec Earthwatts 380D PSU is enough to power my overclocked i5 2500K, EVGA GTX 460 1Gb FPB, SSD, HDD, DVD-ROM and PCI soundcard. Runs Skyrim just fine.The video card requires 24A and this PSU gives up to 25A per rail before the OCP protecion kicks in.
Sure, no headroom whatsoever, but these current draws are already worst case cenario, so I guess there is no need for headroom.
mrawesome421 - Friday, May 17, 2013 - link
I don't know what I am more impressed with. This PSU or this review. Really, terrific job here.Great unit too. I use this to run my old XP box and its quite, reliable and I actually like the green paint job. I would totally buy this thing again for a future HTPC build. In fact, I know I will.
Great review man. Thanks.