Chieftec feeds from the middle class

As you can already read on the previous page, the power supplies that are hospitable to us are without any kittens. The cover has been given the usual gray color, so there is nothing to talk about the quality of the paintwork.

We’ve also written a few words about cables, but their length and number of connectors haven’t been revealed yet. The three units do not differ in terms of cable harnesses, so the following data applies to all types.

The shortest is a whip with a 24-pin connector, it’s fifty inches. Sixty centimeters became the cable for powering PCI-Express VGA cards. Although we wrote that for these mid-range power supplies, VGA is a bit behind the priority list, and these units are also capable of powering two cards, as we can manage an 8-pin connector twice. The longest were the whips with the traditional Molex and SATA connectors, which are 80 centimeters long, and the cables with the 4- and 8-pin connectors on the motherboard are the same size. It should be noted that although the cheapening is actually available on the tear, the Molex connectors did not fall victim to this, all of them are of the easy-to-pull variety. Since the traditional Molex is already out of fashion, there doesn’t seem to be much in the way of the three available buckles, and since SATA is in its heyday, it’s no exaggeration to have six connectors in this format either. Anyone who can’t completely break away from old hardware will also find a floppy connector that can, of course, be used not only for floppy disk drives, but also for card readers, for example.

Let's see the nameplates!

It immediately becomes clear that there is no difference in terms of structure. Each power supply has two 12-volt branches, and there is no difference between the 3,3-volt and 5-volt branches, respectively. Of course, we can already see a difference in load capacity, but this is no wonder, as the capabilities are different.

The inner world can follow! 

We selected the largest of the power supplies, the 500 W model, to take a look at its design. We dismantled the cover and then looked at what it looks like during the printed current, what components were used, and so on. Although we did not find any data on this on the casing, beetled in the pots of the net, it seems that the internal organs of the feed are provided by Sirtec. Since we don't have reliable data on this, we don't dare take poison on it, but since it wouldn't be unusual for the Chiefs, it might even be true.

On the input (primary) side we can find a piece of buffer capacitor with a very large physical size, which is made by TEAPO, its capacity is 220 nnnF (we have seen much higher values ​​before), its operation is certified to 85 ° C. In the middle of the PCB are two iron core coils (one smaller and one larger). On the output (secondary) side, the area thickens, your number is monitored by an electrolyte capacitor arranged in a forest, which are also TEAPO products, 1000 nnF, and certified for 105 ° C.

As you can see in the pictures, we can't say that the printed circuit board is too crowded (it only thickens at the buffer side of the secondary side), there is plenty of room to ventilate, so there was no need to use aggressively sized ribs. We find a total of three of them, nicely distributed, one on the input side, one in the middle, and one on the output side.

Another important issue is the fan used. Today, the vast majority of desktop PC power supplies are equipped with a 12cm fan, and the Chieftec models in this article are no exception. In the 500 W edition, it is a sleeve bearing made by GLOBE FAN. Type number S1202512L, based on this we found the following:

We did not find a "1K" mark on the sticker of the air agitator, so we are presumably dealing with the second participant in the table. The fan delivers 67,28 cubic feet of air at maximum speed while producing around 2000 rpm, with a noise level of 34 dB (A), obviously this scenario will be needed very rarely (if at all) and overall it can be said that cooling is in soothing silence. it does its job, especially compared to other coolers working in the machine, it becomes audible at most if we have otherwise built a completely passive house.

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