Is it normal for PSU voltage to drop on 3.3V and 5V RAILS?

[Patcy]

Corsair VX450 have one that show a drop from last 2-3 years of present at 3.3 V and 5V, as exposed in this chapter.

Three months ago I changed the video card and cooler and I noticed an increase in consumption, but fits comfortably within the original features, including games or overclocking.

Is usual in both the current decline of 3.3 V and 5V?

[phunsuk]

Specifications ATX power supply, which is the simply indication used by manufacturers, calls for a greatest of + / - 5% variation in voltage on the rails of the four main PS. By rail of 3.3 V, the range is from 3.135V - 3.465V, and the 5V rail range is from 4.75 to 5.25 V. The values exposed in the screenshot are within these ranges, although the minimum reading of 3.3 V rail is close up to a smallest amount.

You talk about "current" in his message on these figures, but these are all the tensions, such as specifications. No current readings on the screen. The amount of current that can provide a PS depends on the model, and the VX450 is a current high capacity PS.

Although the cards only use the 12V power rail, a demand that may affect the railroad rails of 3.3 V and 5V. Check the use of power of a GTX 560, I found the values of 235W - 317W at full load and up to 135W - 161W at rest. Although the VX450 is an excellent PS, when used with a GTX560 under heavy load, is approaching its limits. That might explain the tensions somewhat low (but within specifications) they are seeing. In addition, software for monitoring the voltage is not very accurate, so it can not be sure of the values we are seeing are perfectly correct.