In Win Commander II 1200W
by Martin Kaffei on June 10, 2011 1:10 PM EST- Posted in
- Cases/Cooling/PSUs
- PSUs
- 1200W
- In-Win
Voltage Regulation
| +3.3V Regulation | |
| Load | Voltage |
| 10% | +2.42% |
| 20% | +2.12% |
| 50% | +0.61% |
| 80% | -0.91% |
| 100% | -1.82% |
| 110% | -1.12% |
| +5V Regulation | |
| Load | Voltage |
| 10% | +1.60% |
| 20% | +1.20% |
| 50% | +-0.00% |
| 80% | -1.00% |
| 100% | -1.40% |
| 110% | -2.00% |
| +12V Regulation (Worst Rail) | |
| Load | Voltage |
| 10% | +1.17% |
| 20% | +0.92% |
| 50% | +0.08% |
| 80% | -0.75% |
| 100% | -1.17% |
| 110% | -1.83% |
The measurements are better than expected. +3.3V starts with a clear overvoltage, but the drop at higher loads is very low. +5V is within ATX specification too. The worst +12V rail performs very well with results very close to the optimal values. Despite the questionable information on the label, it is nice to see that this PSU has no problem with 1200W or even more. The label with 1079W combined power for +3.3V, +5V and +12V was very confusing but now we know 1200W is a reasonable rating for this PSU. Note that we did use a separate 16A power cord for testing.
Ripple and Noise
| +3.3V Ripple Quality | |
| Load | Ripple and Noise |
| 10% | 8mV |
| 20% | 10mV |
| 50% | 15mV |
| 80% | 22mV |
| 100% | 22mV |
| 110% | 25mV |
| +5V Ripple Quality | |
| Load | Ripple and Noise |
| 10% | 9mV |
| 20% | 13mV |
| 50% | 18mV |
| 80% | 24mV |
| 100% | 25mV |
| 110% | 28mV |
| +12V Ripple Quality (Worst Rail) | |
| Load | Ripple and Noise |
| 10% | 26mV |
| 20% | 38mV |
| 50% | 53mV |
| 80% | 73mV |
| 100% | 89mV |
| 110% | 94mV |
A big problem for this PSU are the relatively high ripple and noise results. ATX spec is that ripple should be within 1% on 12V and 5V, and up to 50mV on +3.3V, so 25-28mV is acceptable for the smaller rails. However, "acceptable" isn't the same as "good", and these are not the best results we have seen. Similarly, +12V is very close to 100mV, which is very close to the 120mV limit. That might be within the ATX requirements but we should keep in mind that the Commander II is a high-end PSU for gamers; the other +12V rails show similar values.
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18 Comments
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gusnovak - Saturday, June 11, 2011 - link
how can we get rid of this kind of scum from china?JarredWalton - Saturday, June 11, 2011 - link
By me marking them as "spam". :-)iamkyle - Saturday, June 11, 2011 - link
...another review without comparisons to other products. Seriously, why can't this be done?Martin Kaffei - Saturday, June 11, 2011 - link
There are many comparisons in the conclusion. But if you are thinking of roundups were we compare every single feature we will find a solution.maddogcolli - Saturday, June 11, 2011 - link
"...merely an average 1200W offering."I wondering if merely an average power supply is all that is needed these day's? Since mother board manufacture's today are paying alot of attention to onboard voltage regulation. Does the end user really need a state of the art pwr supply?
Martin Kaffei - Saturday, June 11, 2011 - link
Since many components have a direct connection to the PSU: Yes.Moreover the VRM on some mainboards might be relatively resistant, but that does not apply to every one.
Of course not all systems need the best PSU but if there are important data on your PC or if the PC is very expensive I would spend much money in the PSU.
zhongkko - Sunday, June 12, 2011 - link
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