Lenovo Q77/B75/A75/Q75 /H81/Q85/Q87 LENOVO Computer Power Supply 54Y8923
-LENOVO 54Y8923 Computer Power Supply
Whether you’re building a basic desktop or a power-house gaming PC, choosing the right PC power supply unit (PSU) is an important decision. Here we have PSUs for Lenovo Q77/B75/A75/Q75 /H81/Q85/Q87. Fully Modular Cable Management, 80 Plus Gold-Certified to Deliver over 90% Efficiency ...
LENOVO 54Y8923 Computer Power Supply
|Brand:||LENOVO Computer Power Supply|
Can replace the following Part Numbers :54Y8922 FSP180-30SBV SP50A36147 SP50A36146 PCB020 PCE008 HK280-71FP HK340-72F PS-3181-02 PS-4241-01/02 FSP240-40SBV
Fits the Following Laptop Models :Output Power : 100-240v~,4A,50/60Hz
Ootput Power : 180W
(-12V &+5.08Vsb=15W Max)
DC Output : +12V==14.5A(yellow),-12V==0.2A(blue)
Standby Output : +5.08Vsb==2.5(purple)
Interface: 14p+4P pin
Lenovo Q77/B75/A75/Q75 /H81/Q85/Q87
Why You Need A High Quality PSU ?
The role of a PC power supply unit is to convert the AC electric power that comes from the mains to the DC power that the computer requires. But it can do much more than that. A good quality power supply can make your system more efficient, stable and reliable.
Choosing Your Power Supply
Firstly, ensure you select a PSU from a reputable manufacturer.
When choosing a PSU the output is very important. This output is listed as watts and should be greater than the combined wattage of all the components in your system plus 40 to 60%. Very simplistically speaking the more demands you place on your system the higher the wattage of the PC power supply unit should be. For example, a high end gamer will require a far higher wattage than a home user who surfs the net and does some word processing.
But it isn't all about the wattage. Efficiency is important so look for PSUs that have the 80 Plus certification. This indicates that the PSU will waste less energy than other units making it cheaper to run and much more reliable.
There are different types of PSU and cabling. Fully modular power supply units enable the user to remove surplus cables from the case, whilst a semi modular PSU has a mix of detachable and hard wired, or permanent, cables.
The third option is a fully wired PSU which, as the name suggests, does not allow any cables to be disconnected. Of the three the fully modular unit is the most versatile.
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