Power Desktop PCs - more often called PSU - do not get too much attention , which is a shame.
Is that anonymous metal box that powers everything in and out of many PC peripherals. It will dictate the amount of hardware that can be installed and how efficient the entire system can run .
But the choice of a new power supply is not only to choose one with a high power and screw in place , there are some subtle details to keep an eye out for.
To begin with is the 12 volt rail - usually written as 12 v specifications - this is the part of the source that powers most of the components - most importantly , the graphics card and processor.
A power source specification should detail the maximum power of each rail 12 volt , good sources provide more than one, dedicating a lane to the processor, leaving the rest for the supply of the other components.
Is that anonymous metal box that powers everything in and out of many PC peripherals. It will dictate the amount of hardware that can be installed and how efficient the entire system can run .
But the choice of a new power supply is not only to choose one with a high power and screw in place , there are some subtle details to keep an eye out for.
To begin with is the 12 volt rail - usually written as 12 v specifications - this is the part of the source that powers most of the components - most importantly , the graphics card and processor.
A power source specification should detail the maximum power of each rail 12 volt , good sources provide more than one, dedicating a lane to the processor, leaving the rest for the supply of the other components.
Connections and more
A power supply also should ideally come with the right connections necessary to power the components. PSUs are built to a specification based on the ATX standard , the latest version is now up to v2.3 , although nothing has changed from drop since v2.2.
At least one power supply required principal 20/24-pin and 4 - pin ATX12V power supplies motherboard . Intel Motherboards high end often require an 8- pin ATX12V connector called EPS12V connector - for power supplies with one doubling as the standard 4-pin ATX12V just mentioned .
In addition to the connectors you want 4-pin Molex connectors standard for general internal peripherals , connectors for Serial ATA hard drives and high-end graphics cards enough power connectors PCI Express 6-pin and 8 -pin. The confusing part for Serial ATA and PCI Express connectors is that the adapters are also available for you to use the older Molex connectors .
If you want to take some of the guesswork out of choosing a new power supply, read our PSU wide range of opinions. Now, suppose that show how to install the new power supply.
At least one power supply required principal 20/24-pin and 4 - pin ATX12V power supplies motherboard . Intel Motherboards high end often require an 8- pin ATX12V connector called EPS12V connector - for power supplies with one doubling as the standard 4-pin ATX12V just mentioned .
In addition to the connectors you want 4-pin Molex connectors standard for general internal peripherals , connectors for Serial ATA hard drives and high-end graphics cards enough power connectors PCI Express 6-pin and 8 -pin. The confusing part for Serial ATA and PCI Express connectors is that the adapters are also available for you to use the older Molex connectors .
If you want to take some of the guesswork out of choosing a new power supply, read our PSU wide range of opinions. Now, suppose that show how to install the new power supply.
- Which PSU to buy ?
While PC situation styles can differ extremely in exterior design, their interior dimensions need to match the ATX specs. What this means is they need to pay a PSU 15x9cm and a minimum of 14cm lengthy. There obviously exceptions towards the rule, first of all small-cases may use more compact microATX, or entirely custom-designed PSUs, in which the physical PSU size is different from this standard as seen here. Check before purchasing.
- How much power ?
Make certain you select a superbly effective PSU. Like a rough guide you have to add some wattage used - sometimes known as the TDP - for that processor and graphics card. Fundamental essentials two primary energy people and it is important the 12V rail in your new PSU will give enough energy to both.
- Mount the PSU
The conventional ATX mount points on the PSU are the same. In some instances you may want to take away the CPU cooler or the surface of the situation to achieve full access. For tower cases it's often simplest to put the situation on its side, as you'll be able to relaxation the PSU on its side.
- Secure it
The PSU is screwed in position using four standard ATX situation screw, make certain you can observe all before messing it into position, as you'll be able to obtain the PSU the wrong manner around. - ATX power
This is actually the 20/24-pin ATX primary system board energy connector, older systems just use the very first 20-pin. Within this situation the additional 4-hooks can easily over hang the socket or some PSUs possess a connector in which the last four hooks unclip.
- ATX12V power
The oddly title ATX12V connector is especially designed to energy the processor getting a clear 12v supply and may be powered in the own 12V rail. The first and current version can be a square 4-pin design that's right for additional motherboards, however high-finish Apple motherboards - mostly socket 1366 models - require an up-rated 8-pin version. Look at your mother board before buying.
- PCI Express power
6-pin and eight-pin PCI Express energy fittings are nearly only every needed by mid- to high-finish graphics cards. With respect to the model a card may need a couple of 6-pin fittings, a treadmill 6-pin and something 8-pin. If you are planning to operate dual-graphics cards this is clearly bending !
- Molex and SATA
The rest of the energy fittings are often accustomed to energy any optical drives and hard disk drives inside a system, that old 4-pin Molex fittings mostly come up here. SATA hard disk drives may be the final exception needing the SATA energy fittings, however, many drives provide fittings for Molex too, within this circumstance just use either not both.
- Adaptors
As fittings and needs have elevated or transformed through the years, rather than making older PSUs redundant companies have simply offer adaptors. These will take a couple of Molex fittings and convert them into SATA, PCIe 6-pin and PCIe 8-pin energy fittings. - Tidy up
A tidy case is really a happy case. Departing cables rumbled throughout in the situation suppresses ventilation and can result in a method running warmer of computer needs to. It certainly is worth taking some time to wrap, tuck and tie-up cables for any neat finish, as well as your mother could be proud.
Step-by-step guide to building a PC
Intro: How to build a PC
Step 1: How to take a PC case apart
Step 2: How to install a power supply
Step 3: How to install a motherboard
Step 4a: How to install an Intel processor
Step 4b: How to install an AMD processor
Step 5: How to install memory
Step 6: How to fit the internal cables
Step 7a: How to install a hard disk
Step 7b: How to install an SSD
Step 8: How to install an optical drive
Step 9: How to install a graphics card
Step 10: How to install expansion cards
Step 11: How to put a PC case back together
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