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View Full Version : PSU upgrade time!


Madpistol
08-03-10, 06:28 PM
I've got an OCZ GameXstream 700-watt PSU that's nearly 5 years old. I think it's time to upgrade it to a quieter, more efficient unit. I also believe that it may be nearing the end of its life as the computer sometimes doesn't turn on immediately when I push the power button. I'm looking to make a decision this week sometime.

Here's what I'm looking for:

-Quiet operation (virtually silent fan, no extraneous electrical noise, etc.)
-At least 700-watts
-Modular (24-pin, 8-pin CPU, and PCI-e connectors are optional)
-$150 or less (if it's more, explain why it's worth the extra $$$)
-US shipping site.


Here's the models I currently have my eye on:

XFX Black Edition P1-750B-CAG9 750W (http://www.newegg.com/Product/Product.aspx?Item=N82E16817207003): $129.99 before rebate (5 year warranty)

CORSAIR HX Series CMPSU-750HX 750W (http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010): $139.99 before rebate (7 year warranty)

SILVERSTONE ST85F-P 850W ATX (http://www.newegg.com/Product/Product.aspx?Item=N82E16817256058): $139.99 (3 year warranty)


Those are my top 3 so far. What do you guys think of those units? Any other recommendations?

Bearclaw
08-03-10, 06:33 PM
Corsair all the way. Excellent PSU. I am about to get the model down. the 650watt. I might get the one you put though. :)

bob saget
08-03-10, 06:44 PM
i like my corsair. i am not sure if 750 is enough for multiple cards, but I dont need that kind of legroom.

Madpistol
08-03-10, 07:06 PM
The 5870 is rated for 180-watts, and it usually chews through about 200-watts at max.

750-watts should be more than enough to add in a 2nd one.

Madpistol
08-03-10, 07:40 PM
This one really has me tempted now:

Ultra X4 750-Watt Modular Power Supply (http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4558896&CatId=106): $109.99 + Lifetime warranty

It's fully modular, got spectacular reviews, and has a lifetime warranty. This one is winning so far. Is there some terrible reason that I shouldn't get this one?

mullet
08-03-10, 09:14 PM
EDIT

betterdan
08-03-10, 09:27 PM
Corsair 750W or cry later when you wish you would have got one.

ViN86
08-03-10, 09:35 PM
I'd recommend a PC Power and Cooling kilowatt, but they're not silent. :o

Maybe the PC Power and Cooling Silencer Mk II 750W?
http://www.pcpower.com/products/description/Silencer_Mk_II_750W/index.html

Can't beat a single 12V rail.

mullet
08-03-10, 09:53 PM
Yeah I didn't know PCP&C made the 750 still, looks like a new design. I agree with VINster on this.

Madpistol
08-03-10, 10:01 PM
The PCPNC unit isn't modular, though. That's the only thing I have against them.

Madpistol
08-06-10, 06:55 PM
I pulled the trigger on the Corsair HX 750-watt modular PSU a few days ago. I've now got it installed and running.

This thing is a silent beast! The inconsistant power issue is fixed. Computer is wired with only 6 cables from the PSU (2x 6-pin PCI-e, 8-pin CPU, 24-pin motherboard, 1 SATA wire, and 1 molex wire!)

My computer is unbelievably quiet now! What an incredible PSU! :D

bob saget
08-06-10, 08:18 PM
I pulled the trigger on the Corsair HX 750-watt modular PSU a few days ago. I've now got it installed and running.

This thing is a silent beast! The inconsistant power issue is fixed. Computer is wired with only 6 cables from the PSU (2x 6-pin PCI-e, 8-pin CPU, 24-pin motherboard, 1 SATA wire, and 1 molex wire!)

My computer is unbelievably quiet now! What an incredible PSU! :D

Yea I have VERY few wires as well. Too bad my bare fan cables are all over the place and look terrible :(

haloeighty8
08-06-10, 09:27 PM
I personally have always used pc power and cooling but in my latest upgrade my 1kw-sr just couldn't handle the 480's so I was going to get a corsair but they where all out. So I opted for a Antec TP Quattro Series TPQ-1200 and it's been excellent so far, keeping my fingers crossed! ;)

wheeljack12
08-07-10, 03:02 PM
I know I have the psu to go with 3 way sli, just wanted to be quieter and more efficent. I just pulled the trigger on corsair's ax1200 gold. It's also a 1200 watt but is 80 plus gold and is fully modular unlike the pcpc. Also has 100 amps on the 12v rail just like the pc power and cooling. I have my tri sli gtx 480 at 80 percent fan and the pc power and cooling is louder than that. And the pcpc is a little dated being it's eol with pcpc now although they are still selling stock on their web store. Would have got the corsair sooner but it's less than a month old on the market and is a rare find. For those with the hx1000, this is a treat for you. The corsair is the best psu next to ama's axe deluxe 1500 watt (can't find that one anywhere) for proper 3 way sli pci-e power connections. Weird thing is that slizone puts the ama in the 3 way 470 catagory although it can power 3 480's easy. and last the price difference, pcpc 1200 watt over $500 US, corsair ax1200 gold $330 cdn. also, I have had the pcpc for about 2-3 years so there is less warranty left. Also, if I had to rma the pcpc psu, I wouldn't get the same in return as I sent one back a year ago. Got back a pcpc silencer 910 watt since the 1200's are eol. Put that into a friend's i7 975 system I built for him since I need more than 1kw to power what I have now.

Yaboze
08-09-10, 10:33 AM
I love my Corsair modular (HX1000), picked it up at Microcenter.