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Comparison Cooler Master MasterWatt MPX-5501-AMAAB vs Cooler Master GM G550M

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Cooler Master MasterWatt MPX-5501-AMAAB
Cooler Master GM G550M
Cooler Master MasterWatt MPX-5501-AMAABCooler Master GM G550M
from $87.79 
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from $101.00
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Power550 W550 W
Form factorATXATX
Specs
PFCactiveactive
Efficiency85 %85 %
Cooling systemsemi-passive1 fan
Fan size120 mm120 mm
Certification80+ Bronze80+ Bronze
ATX12V version2.42.31
Power connectors
MB/CPU power supply24+8 (4+4) pin24+8 (4+4) pin
SATA66
MOLEX23
PCI-E 8pin (6+2)22
Floppy
Cable systemsemi-modularsemi-modular
Braided wires
Cable length
MB550 mm
CPU600 mm
SATA500 mm
MOLEX500 mm
PCI-E550 mm
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
Manufacturer's warranty5 years5 years
Dimensions (HxWxD)86x150x140 mm
Weight1.6 kg
Added to E-Catalogjanuary 2018november 2013

Cooling system

1 fan. The most common option. The power of such a system is quite enough to cool the power supplies, including Above average and relatively inexpensive. On the other hand, fan operation creates noticeable noise, especially in low-cost power supplies with small diameter fans (see "Fan Diameter").

2 fans. The second fan is usually installed in powerful power supplies, for which the power of one fan is not enough. The price for such efficiency, in addition to increased cost, is an increased noise level.

— to Semi-passive cooling. A function that allows you automatically turn off the PSU cooling system in situations where the load on the power supply is low and heat dissipation is reduced. It is found only in models with active cooling. Recall that systems of this type are more efficient than passive ones, but they consume additional energy and create noise during operation. Accordingly, at a light load, when intensive cooling is not required, it is more reasonable to turn off the fans — this saves energy and reduces the noise level.

Passive(radiators). Compared to fans, heatsinks have a number of advantages: for example, they do not create noise at all and do not require their own power supply (thus reducing overall power consumption). On the other hand, they are much less efficient, as a result — the power...of power supplies with passive cooling does not exceed 600 watts. In addition, these PSUs are quite expensive.

ATX12V version

A standard for power supplies that supplements the ATX specifications regarding power supply along the 12 V line. Introduced into use since the time of the Intel Pentium 4 processor. In the first series of the standard, the +5 V line was mainly used; from version 2.0, the +12 V line was introduced to fully power the components computer. Also in the second generation, a 24-pin power connector appeared, used in most modern motherboards.

MOLEX

The number of Molex (IDE) connectors provided in the design of the power supply.

Initially, such a connector was intended to power peripherals for the IDE interface, primarily hard drives. And although the IDE itself is completely obsolete today and is not used in new components, however, the Molex power connector continues to be installed in power supplies, and almost without fail. Almost any modern PSU has at least 1 – 2 of these connectors, and in high-end models this number can be 7 or more. This situation is due to the fact that Molex IDE is a fairly universal standard, and with the help of the simplest adapters, components with a different power interface can be powered from it. For example, there are Molex - SATA adapters for drives, Molex - 6 pin for video cards, etc.
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