After the experimental study of 1000 watt PSU, we return to the more familiar power ratings groups. On the agenda of the 850-watt power in various price categories. A selection of models in this power already has eleven devices , and now for them to add three more. Imagine them in order.
One of the «gold» 850-watt Corsair units we tested — then it was a very advanced model of the senior line of RM. Now it will be considered a variant easier — Corsair CS850M. In contrast to the more expensive solutions, this PSU is made by partly modular scheme offers less rich set of connectors, power characteristics but appeared no worse, and 80 Plus Gold certification is still here.Kinda planned confrontation between two models of the same manufacturer.
Chieftec APS-850CB — block middle-class, certified under the standard 80 Plus Bronze. However, he does not look «poor cousin» even against the flagship devices: the manufacturer claims very high power characteristics, power supply is made on a modular scheme and equipped with all necessary connectors.Often it is these models offer the most interesting combination of «price / performance».
Last BP in this trio — «Bronze» InWin IP-P850BK3-3 — looks much simpler: a non-modular design, significantly lower performance.However, it has its trump card — low cost. Verify whether he can compete with the more solid solutions category. It’s time to move on to a visual inspection.
We have previously considered the 650-watt model series — have a lot in common blocks. Corsair CS850M comes in a cardboard box, decorated traditionally packages BP «secondary» lines of products (CX and CS). Dimensions — 290 x 210 x 130 mm.
The packaging of all necessary information — description of the block, the table of characteristics, the list of connectors.
With reliability so good — body downright «rolled up» into a tight penopropilena.
Package includes instructions, power cord, mounting screws and plastic ties to secure the cable in the assembly system.
External power is not very different from the low-end model. Some special «design» elements are not present, but the device looks respectable.
Model CS850M performed on the partially modular scheme. On the body there are six connectors for connecting cables with power connectors and peripheral cards.
Block dimensions — 149 x 159 x 86 mm, the length is increased by 20 mm (as compared with the conventional power supply form factor ATX). This is a characteristic of almost all the powerful devices before buying should exercise caution and make sure that this model is compatible with your body (especially if you plan to use the unit as part of a compact system). Weight CS850M — 1845
The unit is equipped with a large seven-bladed fan size 135 x 25 mm.
Grid, covering the spinner, can be easily removed without disassembling the body. This can greatly simplify the cleaning unit against dust.
Consider the power characteristics. The current in a single (without additional separations) line 12 can reach 70.8 A. This corresponds to 849.6 watts of power, the rate is 100% of the nominal unit (to be precise, 99.95% — but we round to the nearest tenth).Excellent figure!
The current in the channels 3.3 V and 5 V is limited to 25 A. In total, it is possible to apply for up to 130 watts of power. The unit is certified under the standard 80 Plus Gold.
All cords block, other than the principal (ATX Mainboard), in the form of a ribbon cable. The length of cable with connectors ATX Mainboard 20 + 4-pin and the CPU 4 + 4-pin 600 and 650 mm.
The unit is equipped with four slots PCI-e 6 + 2-pin. It is sufficient to set the 850 watt device — such models just are designed for SLI / CrossFire c pair of video cards (for one accelerator often you can do to 550-600 watt PSU for «exotic» with three or four models need something something «beyond the kilowatt»). Cord Length — 700 mm.
For peripheral connectors are eight SATA, eight Molex and two Floppy (output via adapters). Cord length 730 mm (Molex) and 800 mm (SATA).
Well, the unit made a good impression in the external examination. The manufacturer claims this model high power characteristics; a certificate of 80 Plus Gold promises high efficiency, and a set of connectors is enough for even the most advanced home system.
Externally, the 850-watt power is almost indistinguishable from the youngest 550-watt model that we have tested previously. The device comes in a box of medium size — 300 x 210 x 100 mm.
With informative things are not the best way: box is used for several blocks, so that a particular model has no data — even a simple table power characteristics.
But reliability is all right — block recorded in a mild form of penopropilena, so that the body is not in contact with the walls of the box.The dense bundles of cords function as additional mitigating element.
Package includes instructions, power cable and mounting screws. Everything is simple and familiar.
The design of the power supply can not be called particularly interesting, but it looks APS-850CB carefully and solidly.
The device is made of partially modular scheme. Disables made cords with connectors PCI-e connectors and periphery. On the back of the sticker is placed with the scheme contact:
Dimensions of the unit — 149 x 159 x 86 mm (as the model Corsair length increased by 20 mm), weight — 1935
APS-850CB equipped odinnadtsatilopastnym fan size 135 x 25 mm. Grate in this case also be removed without disassembling the housing.
Line 12 is divided into two virtual channels with very high limited power — 480 W (40 A). The maximum total load — 850 W is the ideal figure — 100% of the nominal model.
A current limit on the channels 3.3 and 5V is 25 A, the total load — up to 150 watts. The product is certified according to the standard 80 Plus Bronze.
The unit is equipped with two power connectors CPU — CPU 4 + 4-pin and 8-pin CPU (cord length is 550 mm). The length of cord with connector ATX Mainboard 20 + 4-pin — 470 mm.
To power the video card has four connectors PCI-e 6 + 2-pin. This parameter unit Chieftec Corsair and equal. The connectors are placed on separate unplug length of 550 mm.
But the number of SATA connectors, this PSU slightly exceeds Corsair — nine to eight (cord length — 750 mm), the number of models equivalent Molex — eight pieces (900 mm). Also has a connector Floppy.
As a result of the inspection unit makes an excellent impression. It should be borne in mind that it is relatively inexpensive, «bronze» model — in this case the alleged power characteristics proved no worse than the «gold» Corsair, are almost identical and set of connectors.
Decisions of this series, we also tested previously (this is not surprising, in the base for about 200 BP, so that the «relative» can be found for almost any device) — IP-P850BK3-3 was very similar to the 750-watt model IP-P750BK3- 3.
The power supply comes in a cardboard box of medium size — 300 x 210 x 135 mm. Please note that all the inscriptions made in Russian:
The box provides a fairly detailed description of the block, but there is no table of power characteristics.
Packed device securely and accurately — the body is placed in a tight penopropilenovy «Case» items is laid on individual sachets.
Package includes instructions, power cord, mounting screws and power cable extender CPU with additional tight braiding (it is a necessary part, as he proved to be a bit short cord — just 450 mm).
External power is no different from the younger 750-watt model. The main design elements — large logo on the grille Power Man (do not be surprised, InWin and Power Man — trademarks of the manufacturer) and the original «translucent» fan (although the lights are not provided).
Unit dimensions — 149 x 159 x 86 mm (thus, the dimension of the three PSU identical — length increased by 20 mm), weight — 2230 It is made of standard (non-modular) scheme.
The model is equipped with IP-P850BK3-3 original devyatilopastnym fan size 135 x 25 mm. The grille is properly attached — it can be easily removed without disassembling the body.
Table power characteristics immediately gives the venerable age of this model (BP appeared on the market a few years ago). For example, line 12 «cut» once on four virtual channels limited to 25 A (300 W). In sum, it is possible to apply for up to 768 watts.Substantially less than both its competitors — figure is only 90.4% of the nominal model.
The strength of the current lines of 3.3 V and 5 V is limited to 25 A, the maximum total load reaches already 180 W (a good old trick of «pulling» the total power at low line 12, compare, at a much more expensive and high-quality CS850M this option much lower — only 130 W).
The length of the cords with connectors ATX Mainboard 20 + 4-pin and the CPU 4 + 4-pin of 460 and 450 mm. Opponents cables 100-200 mm longer and to block proved compatible with full-size buildings, the manufacturer even had to put in a special adapter kit extension.
The unit is equipped with four connectors 6 + 2-pin PCI-e (attached in pairs on the two cords of length 600 mm). It’s all right — set the same as that of the blocks and Chieftec Corsair.
By the number of SATA connectors block is also not inferior to its rivals — of eight connectors (two cable length 800 mm). But «molex» are just three — is not enough.
Despite the fact that today, these connectors are not used so often, 850-watt power supply, by definition, should offer more. The length of the cord, which is also mounted connector Floppy, is 900 mm.
So, on the basis of visual inspection BP InWin impression simpler and more affordable models compared with both competitors. It has fewer slots for peripherals, lower power characteristics, besides BP is made by the conventional (non-modular) scheme.
On the other hand, the value of the product InWin significantly lower than the «bronze» model Chieftec (a comparison with the «gold» Corsair can not even stutter). Perhaps, this unit claims to be the «bargain»? Let’s check — it’s time to move on to the Test section.
We proceed to the debriefing.
This PSU has shown good results in all disciplines of testing. If you try, you can only find fault with the quality of stabilization, but here all the numbers in the normal range. At the same time a little bit cheaper CS850M many «classmates» with a certificate of 80 Plus Gold. Nothing to add — the device can be recommended for purchase for use in the «voracious» system.
This situation is not just evolved earlier — block good in many ways (enough power, high efficiency for its category, good quality of stabilization), but it brings the noise level.
In general, the results of previous tests we can conclude that this «Achilles heel» of many powerful models with a certificate of 80 Plus Bronze. Efficiency is not very high (in comparison with the «gold» and «platinum» PD), so that heavy use we get a significant heat. For his compensation is necessary to increase the rotational speed of the impeller.
The result is always the same. Such devices are not bad cope with loads of up to 500-600 watts, then begins a «buzz.»
So it was with another «bronze» BP — InWin IP-P850BK3-3.
Other characteristics of this block were also not too high. In addition, when tested by our method, he was able to provide the system with a load of only 700 watts. I think this model is very few people are interested in choosing a powerful 850-watt power , despite the attractive price.