Is corsair VX450 PSU enough for my rig ?

kudilkrishna

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Hi all

Need to buy a good psu, is corsair vx450 sufficient for my rig ?

1) i7-920
2) Gigabyte ex58 UD3R
3) No graphics card ( as i dont play games )
4) 3 x 1tb hard disk
5) 2 x dvd writers

of should i go for more like Corsair tx650

also do i need any cpu cooler like artic cooling freezer 7 pro

thanks
 
Solution
As others have mentioned you will need to purchase a video card for the motherboard you selected. If you are not a gamer, then another option is to purchase a motherboard with onboard graphics.

If you are going to purchase a video card, then the following applies:

The general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the +12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current (amps) on the +12 volt rail(s) can power a system with two video cards operating in dual mode. There are a few exceptions like the new ATI Radeon HD 5XXX series cards which use less power due to their energy efficiency.

A...

kudilkrishna

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Nov 2, 2009
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in case i feel i would like to upgrade my gpu, i will not go for any gaming cards, but yes for cards like Quadro and ATI fireGl
 
As others have mentioned you will need to purchase a video card for the motherboard you selected. If you are not a gamer, then another option is to purchase a motherboard with onboard graphics.

If you are going to purchase a video card, then the following applies:

The general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the +12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current (amps) on the +12 volt rail(s) can power a system with two video cards operating in dual mode. There are a few exceptions like the new ATI Radeon HD 5XXX series cards which use less power due to their energy efficiency.

A high quality 500 to 550 watt psu will have a +12 volt rail rated at 40 amps. A high quality 700 to 750 watt psu will have a +12 volt rail rated at 60 amps.

In addition the power supply should be at least 80+ Bronze certified for energy efficiency. There are some models available which have achieved 80+ Silver and 80+ Gold Certifications.

Corsair, PC Power & Cooling, and Seasonic are some of the brands that have a reputation for high quality power supplies that consistently earn high marks in technical reviews. They are reliable, stable, and come with a 5 year warranty. Some of the newer models come with a 7 year warranty. Lately we've been seeing a few other brands offering some high quality units. One example would be the Antec Earthwatts series which is a major improvement over Antec’s older psu’s like the Basiq models.

If you decide to purchase a motherboard with onboard video, then the Corsair VX450 will be sufficient for your system.
 
Solution
Your PSU requirements are primarily determined by what is needed for the graphics cards, either the gaming type, the workstation type, or simple video output.

A quadro workstation card is somewhat like a GTX285 gaming card which requires a 550w psu and 40a on the 12v rails.
If such a card is a possibility, then a 550w psu like the Corsair 550VX is the minimum you should get.

If you only need video output, then a basic card like a GT210 will be plenty and a psu of 450w will suffice.

It does not hurt to oversize the PSU a bit. It will only draw the power that it needs.

Unless you are overclocking, you do not need more than the stock cooler.
But... I would consider one anyway. A basic tower type cooler with a 120mm fan will keep your cpu cooler, and will also be quieter when the cpu is under load.
It is best to install one initially since it must be done with the motherboard outside of the case. You don't want to disassemble a working PC later to do it.
A decent one should be <$40.
 

kudilkrishna

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bought Corsari VX450

Also thanks to geofelt & others.