Need to choose a power supply

[neworldman]

I was told that my current setup needs a bigger/better power supply unit. The one I have now is only 430w/450w. It is mounted on the inside top of my pc case if that matters. Below are my components of my pc. What power supply should I get? How will I know it will mount the same? Are they all the same as far as mounting? My power supply now does not have a name brand just a part # made in china. I will be adding a 2tb internal drive and blu-ray burner soon & 8gb more of ram.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150447

http://www.newegg.com/product/product.aspx?Item=N82E16822152185

http://www.intel.com/products/desktop/motherboards/DP55WB/DP55WB-overview.htm

http://www.ec.kingston.com/ecom/configurator_new/PartsInfo.asp?LinkBack=&ktcpartno=KVR1333D3N9/2G

http://www.newegg.com/Product/Product.aspx?Item=N82E16820139112&cm_re=64gb_ssd-_-20-13...-112-_-Product

Processor: Intel Core i7 Processor 860 (2.80GHz, 4MB, 1333MHz Front Side Bus)
Chipset: Intel P55 Express Chipset
Memory: 8GB DDR3 Memory
Hard Drive: 1TB SATA hard drive
Optical Drive: 8X DVD-RW Blu-Ray SATA HDD/VD Combo
W7 ultimate
Form factor/Power supply/Cooling: Mid-tower/430W power supply/90mm cooling fan

[redwudz]

I'd probably go for about a ~500W PS. You can go a bit bigger if wanted, but a 750W would likely be overkill unless you are running something like dual SLI video cards. Not much advice but to stick with a well known brand, Seasonic, Thermaltake, Antec, OCZ or similar. Make sure it has the proper connections for your motherboard and video card. I like the modular supplies as you can get rid of some unneeded cables and get better airflow most times.

Most common PSs use the same size, bolt pattern, etc,. so no real problem if you have a standard case. Some proprietary cases from Dell or some others use a special size PS, but that's not common.

If you want a quiet PS, then ones with larger fans are often a good choice. Most of my Thermaltake PSs use a bottom air intake with a 140mm fan and they run very quiet. Bottom intake PSs also act as a case fan and may help with exhausting warm air from the case.

[RabidDog]

I'd go a bit bigger than 500 possibily 600 or 650.. You look like the kinda guy who IS gonna go for dual or triple SLI gfx card. All that ram, 2 opticals and hard drives, better to err on the side of caution and go for something bigger than needed now. Also look for 85plus cert as this means, under normal load the PS is 85% efficient, thus converting less of your money into heat, thus requiring less cooling, thus requiring slower fans thus giving less noise. Which is always a good thing..

[video_magic]

Go for around the 600w mark. Avoid scrimping on the price for the sake of saving $20. Get something that describes the ratings of the the voltages, read up about amps on the +12v - you want a 'dual or triple rail' so it should list +12v two or three times.

As said above, modular power supplies (where you can avoid plugging in leads and connectors which you won't be using) are good.

I would avoid 'Winpower' and some other cheap mass brands. They can lead to problems on heavy-usage systems as the months go by. Power regulation on the output which is feeding all your sensitive computer components is critical.
Seasonic have a good reputation, Thermaltake have a pricey brandname but are actually quite a poor make and I wouldn't recommend them.

[jman98]

With regards to redwudz' comments, a few weeks ago I had to get a new power supply at Best Buy for my PC. I bought a Thermaltake. Just like redwudz pointed out, Thermaltake makes really quiet power supplies. I've been really happy with it so far, so much so that in the future I probably won't buy any other brand of power supply.