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Overview of budget power supplies Qdion, FSP and Aerocool

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In this review, we will consider three series of power supplies that are designed for the most common computers – office and home. They are the most demanded and they do not need some transcendental characteristics, but reliability and price are important first of all. We want to note right away that this review is not a full-fledged comparative testing, but only an attempt to select the most optimal version of a power supply from this price category. In other words, we wanted to find out if the power supply units of the budget series vary greatly. To begin, we suggest that you familiarize yourself with the models that are participants in this review.

Reviewers

Qdion

QD400 80+

Qdion

QD450 80+

Qdion

QD500 80+

Fsp

ATX-400PNR-I

Fsp

ATX-450PNR-I

Fsp

ATX-500PNR-I

Aerocool

VX-400

Aerocool

VX-450

Aerocool

VX-500

Manufacturer

Fsp

Fsp

Fsp

Fsp

Fsp

Fsp

Aerocool

Aerocool

Aerocool

Power, W

400

450

500

400

450

500

400

450

500

Channel power +12 V, W

300

348

384

276

300

396

324

360

456

ATX standard

2.2

2.2

2.2

2.2

2.2

2.2

2.3

2.3

2.3

Certificate of Efficiency

80 Plus

80 Plus

80 Plus

Not

Not

Not

Not

Not

Not

Connectors

20 + 4,

4 + 4,

PCIe 6 pin,

MOLEX – 1 pc.,

SATA – 3 pcs.,

FDD – 1 pc.

20 + 4,

4 + 4,

PCIe 6 pin,

MOLEX – 2 pcs.,

SATA – 2 pcs.,

FDD – 1 pc.

20 + 4,

4 + 4,

PCIe 6 pin,

MOLEX – 2 pcs.,

SATA – 3 pcs.,

FDD – 1 pc.

20 + 4,

4 + 4,

PCIe 6 pin,

PATA – 3 pcs.,

MOLEX – 2 pcs.,

FDD – 1 pc.

20 + 4,

4 + 4,

PCIe 6 + 2 pin, PCIe 6 pin,

MOLEX – 2 pcs.,

SATA – 3 pcs.,

FDD – 1 pc.

20 + 4,

4 + 4,

PCIe 6 + 2 pin, PCIe 6 pin,

MOLEX – 2 pcs.,

SATA – 3 pcs.,

FDD – 1 pc.

20 + 4,

4 + 4,

PCIe 6 pin,

MOLEX – 2 pcs.,

SATA – 2 pcs.,

FDD – 1 pc.

20 + 4,

4 + 4,

PCIe 6 pin,

MOLEX – 2 pcs.,

SATA – 2 pcs.,

FDD – 1 pc.

20 + 4,

4 + 4,

PCIe 6 pin,

MOLEX – 3 pcs.,

SATA – 3 pcs.,

FDD – 1 pc.

Warranty

1,5 years

1,5 years

1,5 years

2 years

2 years

2 years

2 years

2 years

2 years

Average price, rub.

1600

1800

2100

1800

2050

2500

1700

1900

2600

Qdion 80+ ATX Series

This series of power supplies is produced by FSP, which was formed back in 1993 and specializes mainly in the production of power supplies. Their products are widely represented on the Russian market, since the official representative office was opened almost 15 years ago. Today, FSP is engaged in the production of power supplies for various types of devices – monitors, laptops, desktop PCs, servers and other industrial systems. In addition, the company produces uninterruptible power supplies for rack-mount servers and home applications. Moreover, unlike many companies, FSP not only manufactures products under its own brand, but is also an OEM supplier for many well-known companies. Among the desktop power supplies in the FSP range, there are several different product lines that differ in their characteristics.

The Qdion 80+ PSU series is intended primarily for computer builders, but managed to win the hearts and wallets of ordinary users in a short time, who, for one reason or another, need to replace the power supply. The range of this series includes models with power from 400 to 700 watts. All of them have a certificate of efficiency 80+, that is, their efficiency for all operating modes does not decrease below 80. In this review we will focus on the Qdion 80+ ATX QD400, QD450 and QD500 models as the most popular for office and home PC builders.

Since these power supplies are primarily intended for computer builders, they are often supplied without any packaging. In this case, the products were sealed in a transparent film, through which the parameters and name indicated on the label are visible. There are no operating instructions, power cord, or fastening screws in the delivery, as is usually the case, from the word “completely”. However, they are unnecessary for computer builders.

The power supplies of this series have standard sizes of 150 × 140 × 86 mm, which allows you to install them in any ATX-case. Although, of course, it is not recommended in excessively high enclosures, since all wires are not removable, which means their length is rigidly fixed. Wires, for convenience in transportation are pulled together by a wide coupler. The configuration of the connectors for connecting the motherboard, video card and drives depends on the power of the power supply, and therefore, the choice of a specific model for purchase should be taken with due care. The case of all the models that we received is made in black and made of fairly thick sheet metal. Mesh grilles for ventilation are present only on two sides: from the 120-mm fan and from the side of the power cord.

To maintain a normal temperature balance inside the power supply, a seven-blade fan FD12S12025H of a Chinese manufacturer (Shenzhen Fengmao Teng Technology Co., Ltd.), which specializes in the production of fans, is used. This fan has a high rotation speed of up to 1800 RPM, which allows it to drive very decent volumes of air (CFM = 67.60). Therefore, overheating of the elements inside the power supply can not be feared.

The internal installation of Qdion 80+ power supplies is more than neat, and the components are selected in such a way that the whole structure will last not one or two years, but much longer. The safety margin of these models is high enough. You should pay attention to the presence of many "buffer" parts (resistors, capacitors, etc.), which, oddly enough, contributes to good alignment in current and voltage, and, consequently, the reliability of the entire circuitry of these power supplies. Protection against power supply overvoltage (OVP), overload (OLP / OPP), as well as turning off the device during overheating is assigned to the PWM controller. Not for nothing that these models, with all their simplicity, have received the 80+ certificate.

FSP Series PNR-I

The PNR-I series power supplies are designed by FSP, one of the world market leaders in the sector, specifically for use by large system integrators and mid-size assemblers. They come in capacities from 300 watts to 700 watts.

Since these PSU models are intended exclusively for assemblers, they are delivered without any packaging, that is, exclusively in the OEM version. We received the FSP ATX-400PNR-I, FSP ATX-450PNR-I, and FSP ATX-500PNR-I power supplies. They are visually the same and differ only in power and cables for connecting certain devices inside the computer. It is natural that they are not equipped with either installation and operating instructions, or mounting screws, or a power cord from the mains, since these models are not intended for retail sale.

The case is made as simple as possible, stamped, which reduces the costs of the manufacturer and, accordingly, the buyer. By design, these models are significantly inferior to the series of the same manufacturer considered above. The dimensions of the power supplies are 20.5 × 15 × 8.6 cm, which complies with the ATX standard. Since the wires are not removable, there may be certain difficulties in connecting certain devices in tall cases. But for assemblers, this is not a problem, because in such situations they use extension cords, which solves the problem, but reduces reliability.

To maintain the temperature regime inside the FSP PNR-I series power supplies, D12SM-12 fans of the Taiwanese company Yate Loon Electronics Co., Ltd., which specializes in the production of such products, are used. This model is built according to the seven-blade scheme and has a rotation speed of up to 1650, CFM = 70.5 and noise up to 33 dB. In other words, the parameters are very good and suggest that any overheating inside the power supply is almost impossible.

The internal installation of power supplies of the FSP PNR-I series is made very competently and accurately. Structurally, everything looks more than similar with the Qdion series, and the element base is about the same. The PWM controller installed on the board provides reliable protection against overvoltage (OVP), overload (OLP / OPP), as well as overheating. Unfortunately, some simplification of the used circuit solutions does not allow obtaining an 80+ certificate, since under light load the power supplies of this series have an efficiency of 70-75%. But at higher loads (from 50% of the declared capacity and above) they show an efficiency worthy of a bronze certificate.

AeroCool VX Series PSU

In the range of AeroCool power supplies, the VX line is designed for entry-level computers, as well as simple home and office computers. They are willingly used by system integrators and assemblers, because these PSUs are assembled from high-quality components and provide stable and reliable power.

VX series power supplies range from 350 to 800 watts and come in simple cardboard boxes. On the label indicating the parameters of the product, its name is made on the strip, which has a color depending on the power of the power supply. Since the VX-400, VX-450 and VX-500 models came to us and they are similar to each other as twin brothers, we will consider them precisely.

In each box, in addition to the power supply itself, there is a power cord, an instruction manual and mounting screws. This is a necessary minimum for any private buyer.

The case of the AeroCool VX series power supplies is painted black and made of sheet metal of sufficient thickness. Cables of wires are rigidly fixed in the case, and therefore, the buyer should carefully approach the choice of a specific model, since the composition of the connectors for connecting internal devices directly depends on its power. In addition to stationary loops, the budget nature of these power supplies is emphasized by the lack of a decorative grille for the fan. All heat removal gratings are made in the simplest and cheapest way – stamping.

Inside the AeroCool VX series power supplies there is a lot of empty space, and therefore, efficient heat dissipation for a 120-mm fan does not present any difficulties. The seven-bladed fan DF1202512SEHI was selected by the manufacturer to be cheaper because it is based on a sleeve bearing, which negatively affects the service life and leads to increased noise over time. This is not the best choice even for a budget power supply.

Internal installation is very neat. But the obvious absence of many, possibly important, elements is striking, that is, the electrical circuit was deliberately facilitated to simplify and reduce the cost of production. All this leads to the fact that the power supplies of this series are clearly not up to any certificate of efficiency. The presence of a PWM controller somewhat corrects the situation and therefore the PSU is protected only from overload in power, voltage and short circuit in the network.

findings

In this article, we briefly examined three series of power supplies designed for entry-level systems, which are actively used in home and office computers by system integrators and assemblers, since they are notable for their low price and satisfactory service life (within the warranty). In our opinion, the Qdion series is the best choice, because it not only has a nice design (just like the AeroCool models), but also has an 80+ certificate, which guarantees an efficiency of more than 80% in all operating modes. In addition, it should be noted that both series of power supplies manufactured by FSP (Qdion and PNR-I) are equipped with fans with rolling bearings, in contrast to the AeroCool VX series, in which sliding bearings are used. The latter have a tendency to accelerate wear and, consequently, lower efficiency and increased noise. In our opinion, even in budget power supplies should be installed only, albeit not the highest quality, but good and reliable components. It is also necessary to pay attention to the fact that the buyer should carefully choose the power of the purchased power supply, since the range of output connectors is different and depends on the model. It should be noted that with the optimal price / quality ratio in the considered series of power supplies, the leader – the Qdion series is also the cheapest relative to others. Yes, the warranty on power supplies at Qdion is less, but as a rule, most low-cost models easily work without failures for more than 5 years, and the guarantee here is more important as protection against factory defects, which manifests itself in the first months of operation. Sample price data can be seen in the table at the beginning of the article.

. (tagsToTranslate) Qdion (t) FSP (t) Aerocool (t) power supply (t) PSU (t) 400 W (t) 450 W (t) 500 W (t) 80 PLUS (t) budget



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Cynthia F. Seaberg

Hey, everybody! Thank you for your interest in my blog, I am glad to see you as a guest! Briefly about me: my name is Cynthia F. Seaberg. I was born in the Ural city of Perm, but at the age of 18 I left for Moscow, where I still live, not counting the time I spend travelling.

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