Is this a good PSU

[Upendra09]

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4675269&CatId=1078

This is to power an Athlon 240 2 gigs of DDR3 and in the future to power a 4750

I know it is from OCZ so there will be reliability but the because the price is so low i am worried on whether or not it will be a stable PSU

 

[JohnnyLucky]

Yes, it is a good power supply. However, please remember is a basic entry level psu. Luckily the ATI Radeon HD 4750 video card is not a power hog.

Here is a link to a technical review:

http://www.hardwaresecrets.com/article/794/1

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 5000 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.

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. An example would be the Antec Earthwatts series which is an improvement over Antec’s older series like the low budget Basiq models.

 

[Upendra09]

sorry i meant the 4770

Do you seriously have that paragraph saved somewhere?

and is this a better PSU?

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4236686&CatId=1078

 

[JohnnyLucky]

Yes, the Corsair CX400 is an excellent power supply. However, here are the ATI offical power requirements for the ATI Radeon HD 4770 video card:

ATI Radeon™ HD 4770 - System Requirements:

PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard

450 Watt or greater power supply with one 75 watt, 6-pin, PCI Express® power connector.

550 Watt or greater power supply with two, 75 watt, 6-pin PCI Express® power connectors for ATI CrossFireX™ technology in dual mode

That's for an entire pc system. The 4770 is an energy efficient video card. I just happen to have the XFX version in my pc and I'm getting ready to buy a second one.

I would suggest Corsair VX450 if you are positive you will only be using one 4770:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139003

If you are thinking about using two 4770's, then I would suggest the Corsair VX550:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139004

Yes, I have numerous posts saved in MS Office. Spend enough time here and you keep seeing the same questions over and over and over. It made more sense to come up with the general rule of thumb and simply paste it in. Beats the heck out of typing the same answer over and over. I also have over 50 references bookmarked for quick access.

 

[Upendra09]

ok then

I was also considering the 4830 but that probably uses more power

is the 4830 worth getting over the 4770?

 

[JohnnyLucky]

When ATI introduced the 4770 last Spring, it was supposed to be a very good general purpose, mainstream video card that was energy efficient. It just happened that games could be played fairly well when two of the cards were used in Crossfire mode. It is by no means a top of the line, high end video card.

If you are thinking about enhancing your gaming experience, then you might want to take a look at the ATI HD Radeon 5000 series. There are a variety of models and most are energy efficient. The exception is the 5970 which has two gpu's on one card. Currently it's the fastest card available, sucks up quite a bit of power, and costs big bucks.

 

[Upendra09]

yeah but they are out of my budget i want to spend 120 USD max on a vid card

but how does the 4830 compare to the 4770?

 

[JohnnyLucky]

Here are links to technical reviews of the 4830:

http://www.guru3d.com/article/radeon-hd-4830-review-his-technology/

http://www.legitreviews.com/article/811/1/

Here are links to technical reviews of the 4770:

http://www.guru3d.com/article/ati-radeon-hd-4770-review/

http://www.xbitlabs.com/articles/video/display/radeon-hd4770.html

Finally here is a link to the Tom's Hardware article about two 4770's in Crossfire mode:

http://www.tomshardware.com/reviews/radeon-4770-crossfire,2288.html

Don't forget Tom's Hardware does a best game card for the money article every month. Here's a link to the latest recommendations for cards in the $80.00 to $130.00 price range:

http://www.tomshardware.com/reviews/best-graphics-card,2464-3.html

And with that I am finsihed for a while because it's time for NFL football!

 

[obsidian86]

 

[Upendra09]

interesting