Upgrading my PSU

[Baiken]

... and a few other things along with it, I'm changing out my Motherboard to a Gigabyte GA P35CD53R, GPU to an 8800 GTS 640 MB XFX, CPU to a Intel Core 2 Duo E6850, and my cranky old Hard Drive to a 250GB Western Digital SATA II 16MB.

However my old PSU won't cut it I think @ only 430W, and apparently I need a 500W just for the new GPU So I've been researching some of them but I have no real experience with PSU's so I'm coming to the best place I know to ask for some advice.

Thanks for the help.

 

[GeoMan]

This link and the links from it have all the info, including PSU rankings, all you need when deciding on a new PSU. It's a long read, and some of the links are long reads to, but it's worth it. I didn't like the latest Toms PSU article, its a bit..... well lame.

click here

 

[ZOldDude]

First off a simple 'wattage need' is not the way to pick a PSU. You need to know the amps for each setction that are served.

Now that that is out of the way I see you have a high end system in mind. Having been into computers and radio for close to 30 years I would say look at a PC Power & Cooling PSU.
If you call the company and ask for a Tech he will sell you a real/honest 750 for $169.

These PSU's are the best make hands down and are each oven tested @ 50C under full 100% load to put out amps/volts/watts and dead flat readings on an osilascope and constant power rated.
All other brand PSU's are only surge rated and @ 25C air temps and thier voltages often just hold under the min on a scope while under load.

I use them in my builds and given the same cpu/ram/mb get higher overclocks than others -without- bothering to rasie votages over stock settings others report having done so.

Look at the 18 month old build in my profile...50% OC which is one of many I put together and give the extra gain credit to this brand of PSU.

 

[ZOldDude]

First off a simple 'wattage need' is not the way to pick a PSU. You need to know the amps for each setction that are served.

Now that that is out of the way I see you have a high end system in mind. Having been into computers and radio for close to 30 years I would say look at a PC Power & Cooling PSU.
If you call the company and ask for a Tech he will sell you a real/honest 750 for $169.

These PSU's are the best make hands down and are each oven tested @ 50C under full 100% load to put out amps/volts/watts and dead flat readings on an osilascope and constant power rated.
All other brand PSU's are only surge rated and @ 25C air temps and thier voltages often just hold under the min on a scope while under load.

I use them in my builds and given the same cpu/ram/mb get higher overclocks than others -without- bothering to rasie votages over stock settings others report having done so.

Look at the 18 month old build in my profile...50% OC which is one of many I put together and give the extra gain credit to this brand of PSU.

I forgot to add these are real single rail non-modular PSU's and you get 100% of all the power without any loss like multi-rail modular units are subject to suffer and carry a full 5 year warrenty.
At warrenty end contact a company Tech to replace the caps and fan for another 5 years.