Overall Review: I'm noticing a trend. The fan stopped working and it looks like. Screw any other power supply I'm thick , but maybe Sparkle Power, because they're almost equal to Antec The power supply unit of a computer is just important as your processor!
Great power supply, great price, no complaints. Cons: Blew a cap on power up. Wrecked cpu fan itself, and the sata hard drive which will not spin up any more. The cpu fan being out caused the cpu to smoke. Amazingly the cpu still works after cooling down.
Cons: it has 2 badcaps that go out after 6 months on the 5vsb but they can be easily replaced. Overall Review: it runs a e hd 2gb ram gb hdd and a lite on dvd burner. Sold by: Newegg Shipped by Newegg. This item is currently out of stock and it may or may not be restocked. Out of Stock. Add To Wish List. Are you an E-Blast Insider? Get Educated. P ower Switch: This pow er supply comes with a main po wer switc h. Make sure y ou. In nor mal operation there is no need to tur n the switc h to the OFF O position since the.
Y ou may need to turn the switch to the OFF. Disconnect the pow er cord from your old po w er supply. Open your computer case.
F ollow the directions pro vided in your case man ual. Disconnect all pow er connectors from the motherboard and from the peripherals. R emov e the existing power supply from y our computer case and replace it with your new. Antec pow er supply. It is possible not likely, but possible that the overcurrent protection was legitimately shutting down the power supply, if the specifications on the web site, not the box, are correct see page 2 of this review.
The other factor to consider is that because the 12V line was actually at We contacted Antec about this problem, and they sent us a second sample to see if it would behave the same way.
Fortunately, it did not. The second sample reached the maximum of W load without any problem, and stayed running at that output level for some time. Because the inability to reach full power was probably the result of an overly sensitive protection circuit, not a failure, the problem that we saw with the first sample is largely trivial.
No ordinary system is likely to draw more than half of the load at which the first sample shut down. A dual processor, SLI system might peak around W, but such a system cannot be connected to this power supply without multiple adapters. The flow-through design of the SmartPower 2. At lower loads, this is fairly normal, but as the load increases, it is more impressive. The test environment is live, so readings are higher than would be obtained in an anechoic chamber readings, due to reflections and reinforcement of sound waves off the walls, ceiling and floor.
As with every power supply we test, the positive wire of each fan was tapped so we could measure the input voltage. The neutral line was tapped at one of the common ground wires via an IDE drive connector. However, this method initially gave us a reading of V? This implied that the fan control circuit is completely separate from the rest of the power supply. So, we also tapped the common wire of each fan. No matter what load was placed on the PSU, both fans were always fed the same voltage, which should have meant that they were always at roughly the same speed.
However this was not the case: The input voltage remained at 5. Since the voltage did not change, there was no apparent reason for the rear fan to have suddenly started spinning. For this reason, we were unable to determine experimentally how the rear exhaust fan is controlled. One possibility is that the fan itself is thermally controlled independently of the fan control circuit, but Antec could not verify this yet.
So, the voltages reported in the data table above reflect the input voltage to the intake fan. The fan control circuit seemed to have an odd side effect that dismayed many users in our forums : When the fan monitor cable is plugged into a motherboard, the rear fan runs at full speed? However, unplugging the cable solves the problem and the fans behave as they should. Antec informed us that this problem had been noted and corrected after the first shipment that went out to retail.
Without the fan monitor cable plugged in, the rear fan does not spin at all when the temperature is low. This is excellent for silencers. It also spins slowly enough that it is probably close to or below the ambient noise level in most rooms, effectively making it silent in a low power system. The low-profile intake fan is quite well-behaved, even at the relatively high starting voltage of 5.
The exhaust fan begins to spin when the intake temperature reaches the mid-thirties? The ambient temperature during this test was a bit higher than usual, which caused the fan to start earlier than it would have otherwise. The exhaust fan has a noticeable effect on the noise. It is louder, and there is a small amount of whine from the motor. Fortunately, the transition as the fan turns on is not very audible. There is enough hysteresis in whatever is controlling the exhaust fan that it ramps up slowly and smoothly.
This was true of both fans: Changes in noise level were only audible when specifically listened for. Once the exhaust fan turns on, the noise signature rapidly deteriorates. The twin 80mm fans sound worse than a single mm fan at the same measured noise level because there are two separate bands of motor noise, both of which are higher in pitch than a typical mm fan, making the noise harder to tune out.
Antec SmartPower 2. Enermax Noisetaker W 2. These recordings were made with a high resolution studio quality digital recording system. The ambient noise during all recordings was 18 dBA or lower. To set the volume to a realistic level similar to the original , try playing the Nexus 92 fan reference recording and setting the volume so that it is barely audible.
Of course, tone controls or other effects should all be turned off or set to neutral. Its noise floor is close to that of our low noise reference, the Seasonic S12, and it is considerably cheaper. That said, it cannot compare to the noise level of the S12 at high loads in a typical high-end system. Although they start out at the same noise level and even stay close to level, beyond around W output, the SmartPower gets noisier more quickly and at a lower temperature than the Seasonic.
The low noise of the SmartPower 2. Given the straight-through airflow design of this PSU, it is probably a good candidate for use in an Antec P case, where the thermal isolation of the PSU would ensure lower temperature at the intake, and thus keep the PSU running at idle-quiet levels even at high load.
No other fan would be needed in the bottom chamber of the P The inability of our first sample to deliver its full rated load is a fairly minor issue, related more to the artificial conditions of our test setup and luck of the draw than a serious design flaw. It would be more a cause for concern if the shutdown occurred at a lower load or if it was not related to a protection circuit. More serious is the short length of the cables, which restricts the cases in which the SmartPower 2.
All in all, the SmartPower 2. Much thanks to Antec for the opportunity to examine this power supply. Recently, we discovered that our power supply testing equipment and methodology were providing erroneously high efficiency results.
In general, the biggest errors occurred at higher output load points above W. At lower output levels, the efficiency error was often no more than one or two percentage points. No other tested parameters were significantly affected. In most cases, the same sample was used in the second test. The relative efficiency of the tested power supplies has not changed. If the tested PSUs are ranked by efficiency, the rankings remain the same whether we use the original results or the new results.
In this case, our original efficiency calculations were either dead on or slightly too low except at maximum output, at which point it was a bit too high. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Silent PC Review has been providing expert advice and detailed reviews of PCs and peripherals since
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