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What's a good PSU?

Last response: in Components
March 27, 2009 12:12:35 AM

I am replacing my dead video card with a GeForce 9800GTX+ and have a Q6600 quad processor. According to XFX, I need to upgrade my 400w PSU to at least 630w. I need recommendations for a good power supply. I suspect my old power supply may have caused my dead video card. Thanks for any help you can offer.

More about : good psu

March 27, 2009 1:04:12 AM

Sorry, should have mentioned that I'm looking to spend less than $150. Thanks.
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March 27, 2009 2:05:02 AM

Here is a website to have a look at.... Choose from the top 2 tiers and you should be fine. XFX only lists 630W because there are crap PSU out there so they don't want law suits. I'm pretty sure a quality 550W would do unless you ever decide to SLI.
March 27, 2009 2:09:52 AM

U should be fine with a 550. (but overkill never kills anyone ;)  )

Mainly stick with Corsair, Seasonic, Antec (they have some good ones...especially the new ones) and PC P&C is always good

Also, decide if u want modular or not (can change price a bit)
March 27, 2009 2:10:00 AM

Thanks. I appreciate the info. :) 
March 27, 2009 2:12:22 AM

um, sorry - suchanewb is a pretty good description of me. How do I know if I want modular? Is it size? Fit in the case?
March 27, 2009 2:13:32 AM

Here ya go.

Newegg is pretty good eRetailer

When looking for a good psu, make sure there is at least 18a+ on the 12v rail.
(you will need more depending on setup)
I recommend a single 12v rail over multiple. (multiples cost a little less but may not adequately power your system)

Try to get a unit with Active PFC which will compensate for loss of power.

Brands: PC Power & Cooling, Corsair, Silverstone. Antec and Thermaltake can be considered as well but I would go with the first three by default.
March 27, 2009 2:19:33 AM

Modular just means that u can remove cables that are unneeded....

Reduces clutter but costs more
March 27, 2009 4:23:11 AM

Thanks much for the help. After careful consideration...I'm thinking one of these two:

PC Power & Cooling Silencer PPCS750QBL 750W ATX12V / EPS12V SLI NVIDIA SLI Certified (Dual 8800 GTX and below) CrossFire Ready 80 PLUS Certified Active PFC Power Supply

Corsair TX CMPSU-750TX ATX12V & EPS12V Power Supply

Any warnings, opinions, facts I should know?
Thanks again.
a b U Graphics card
March 27, 2009 5:30:32 AM

Both excellent PSUs, the corsair will probably be a bit quieter.
March 27, 2009 9:32:05 AM


otherwise theyre the same
March 27, 2009 3:01:58 PM

Go 700 watt, more is always better.
March 27, 2009 5:21:21 PM

One last question...should I go with the Corsair 620 HX instead (of the 750 TX) to get a modular unit? It has triple rails instead of single. Being a newb, will it be easier to install?

Interestingly...Corsair says I only need like a 540w but for a few bucks more, why not overkill a little. :) 
March 27, 2009 5:49:53 PM

Multiple or single rail really makes 0 difference. Generally a multiple rail is just a single split

The only difference is modular or not.
Personally, since u really dont kno the difference, grab the 750
March 28, 2009 2:17:38 AM

I appreciate all the help guys. Bought the Corsair TX 750 and will install tomorrow. Thanks again!
a c 248 ) Power supply
a b U Graphics card
March 29, 2009 3:48:51 AM

drippyfausett - thanks for posting the link to the updated tiered list of power supplies. another bookmark for reference material.
March 29, 2009 4:05:21 AM

I still dont agree with that list at all....

I mean, they add stuff, but some stuff should be totally changed
a c 248 ) Power supply
a b U Graphics card
March 29, 2009 5:06:59 AM

Silverion - Yes, that list is not absolute and it is subject to change and personal opinions. On top of that the updated list is from last May. However, what I found interesting was the list of links to other web sites that review and test power supplies:


a c 248 ) Power supply
a b U Graphics card
March 29, 2009 5:21:26 AM

+1 what theAnimal said.
March 29, 2009 5:49:15 AM

Yea personally i like Jonny and Hard OCP the best