We also like to review low-end products from time to time so people with a serious budget restriction can have an idea whether it is worthwhile to buy cheap products or not. Today we are going to take an in-depth look at the eXtreme Power Plus 600 W (RS-600-PCAR-E3) from Cooler Master. Can it really deliver its rated power? Let’s see.
We’ve already reviewed the 400 W (RS-400-PCAR-A3), the 460 W (RS-460-PMSR-A3), the 500 W (RS-500-PCAR-A3), and the 550 W (RS-550-PCAR-E3) models from this same series. The 400 W and the 500 W models were able to deliver their labeled wattages, but both presented very high noise and ripple on their outputs, and the 460 W and the 550 W models weren’t capable of delivering their labeled capacity. Let’s see the fate of this 600 W model.
Models from the eXtreme Power Plus series up to 460 W are manufactured by AcBel Polytech, while models from 500 W and up are manufactured by Seventeam, just like members from an older series called eXtreme Power (without the “Plus”). Our guess is that the "A3" at the end of the part number indicates the first manufacturer, while "E3" indicates the second.
The Cooler Master eXtreme Power Plus 600 W, like the 550 W model and the Spire Jewel Black 650 W, is based on the same platform as the Seventeam ST-500BAZ power supply (already discontinued by the manufacturer). In this review we will check what the differences are among these products.
By the way, like other members from this series, the reviewed unit has the fantastic “As sealed stick was removed, lost or damaged, it shall be out of warranty validity” statement on its label. When will Chinese manufacturers stop using on-line translators and hire someone that can speak English to write their labels?
An interesting thing is that on the power supply label there is no information about the unit’s maximum wattage (the “600” number is printed without the letter “W” after it). This typically happens with low-end units that can’t deliver their labeled wattage. Hum…
The Cooler Master eXtreme Power Plus 600 W is 5 ½” (140 mm) deep, using a 120 mm fan on its bottom. The fan used is a brushless model from ADDA (AD1212US-A71GL).
This unit does not feature an active PFC circuit, as you can see by the presence of a 115 V/230 V switch in Figure 1, but at least it is being based on a more modern design than the outdated half-bridge topology, as we will show.
No modular cabling system is provided and only the main motherboard cables has a nylon protection that comes from inside the power supply housing. All cables use 18 AWG wires, which is the correct gauge to be used and an improvement over the models with lower wattage from this series, which use thinner 20 AWG wires. The cables included are:
- Main motherboard cable with a 20/24-pin connector, 17 ¾” (45 cm) long
- One cable with two ATX12V connectors that together form one EPS12V connector, 21 ¼” (54 cm) long
- Two cables with one six/eight-pin connector for video cards each, 18 1/8” (46 cm) long
- Two cables with three SATA power connectors each, 18 1/8” (46 cm) to the first connector, 5 7/8” (15 cm) between connectors
- One cable with three standard peripheral power connectors and one floppy disk drive power connector, 18 1/8” (46 cm) to the first connector, 5 7/8” (15 cm) between connectors
This configuration is identical to the one used on the 550 W version of this power supply, presenting more connectors than the Seventeam ST-500BAZ, the power supply that this model is based on.
Now let’s take an in-depth look inside this power supply.
- 1. Introduction
- 2. A Look Inside The eXtreme Power Plus 600 W
- 3. Transient Filtering Stage
- 4. Primary Analysis
- 5. Secondary Analysis
- 6. Power Distribution
- 7. Load Tests
- 8. Main Specifications
- 9. Conclusions