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This a good power supply for this build?

Last response: in Components
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September 6, 2010 4:16:38 AM

So this is the build that I've settled upon. The PSU is not my most knowledgeable area, and I'm pretty sure the one I have is sufficient but I'm tryin to trim off unnecessary dollars so I wanted to see if anyone could recommend a cheaper one without losing required power.

It comes in a good combo. If I replaced it I'd wanna keep a good RAM pairing.

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRM

CORSAIR CMPSU-850TX 850W ATX12V 2.2 / EPS12V 2.91 SLI Ready CrossFire Ready Active PFC Power Supply

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

I'll outline the rest of my build to demonstrate my power needs.

Intel Core i5-760 Lynnfield 2.8GHz LGA 1156 95W Quad-Core Desktop Processor BX80605I5760
show details

ASUS P7P55D-E Pro LGA 1156 Intel P55 SATA 6Gb/s USB 3.0 ATX Intel Motherboard

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

Antec Three Hundred Illusion Black Steel ATX Mid Tower Computer Case
show details

LITE-ON 22X DVD Writer Black IDE Model iHAP422-98 LightScribe Support

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

XFX HD-585X-ZAFC Radeon HD 5850 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card w/ Eyefinity
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Scythe SCMG-2100 Sleeve CPU Cooler
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Subtotal $1,026.92

I plan on adding more RAM and another 5850 later.
a c 139 ) Power supply
September 6, 2010 4:43:13 AM

Hello muckle;
That is more power than actually necessary for your build even with a 2nd HD 5850.
But the price differential between the 750TX and 850TX is only $10.
And a Corsair 650TX might work out OK but if you'd want to overclock the CPU and both HD 5850s the 650TX might be a bit light on power.

Everything else is looking good.

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a c 91 ) Power supply
September 6, 2010 6:27:04 AM

I'll recommend either getting the XFX 750W Black Edition or the Corsair HX 750W (whichever is cheaper).. They'll both exceed your current power requirements but will adequately fit your future upgrade plans.. Additionaly, both of them are very efficient (80+ silver certified) and modular which helps immensely with cable management..
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September 6, 2010 8:22:23 AM

In mixing around the components in my build I came across a combo deal with my 5850 and another power supply... not sure if it's worth switching from the corsair/RAM combo listed above and buying some RAM solo

It's a SeaSonic X750 Gold 750W ATX12V V2.3/EPS 12V V2.91 SLI Ready 80 PLUS GOLD Certified Modular Active PFC Power Supply

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

Anyone have any opinions on how this stacks up against my current choice?
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a b ) Power supply
September 6, 2010 8:30:54 AM

Yes i would to the Seasonic. Mainly because its 80+ Gold certified. Better energy saving and better efficiency.

And about your PSU size. For a single HD5850, Corsair VX450W is fine. 850W is way toooo overkill.
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September 6, 2010 8:37:13 AM

hell_storm2004 said:
Yes i would to the Seasonic. Mainly because its 80+ Gold certified. Better energy saving and better efficiency.

And about your PSU size. For a single HD5850, Corsair VX450W is fine. 850W is way toooo overkill.


Well I plan on crossfire eventually

And from what I can tell it's a pretty small diff.. How much more $ if any is it worth
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a c 91 ) Power supply
September 6, 2010 8:42:07 AM

If you can afford the Seasonic X-750 then surely go for it.. Its an excellent PSU from a highly trusted manufacturer..
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a b ) Power supply
September 6, 2010 8:42:12 AM

Then the Seasonic is good option. 5850 CF would also be handled comfortably by 750W. Not to mention that most of Corsair PSU's are made by Seasonic!
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September 6, 2010 8:52:22 AM

It sounds good... But it screws up my combos. I'm sure I can rework them.. So the question is how much better is it?

And say I do go with the seasonic I'd need a solid 4gb ram pack sold separately.. They all look pretty much the same to me. Is there a better option than the ram in the original combo?
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September 6, 2010 3:37:46 PM

So with the Seasonic it's an additional $45 bucks... it is really that much better than the corsair?
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a c 91 ) Power supply
September 6, 2010 4:35:41 PM

muckle said:
So with the Seasonic it's an additional $45 bucks... it is really that much better than the corsair?


Consider you pay that much extra for a fully modular design.. Btw, most of the Corsair high end models are originally Seasonic design..
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September 6, 2010 4:38:38 PM

Explain modular.
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a b ) Power supply
September 6, 2010 4:51:13 PM

some or all of the cabling of the power supply can be disconnected to aid cable management.
modular:

normal:
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September 6, 2010 4:53:49 PM

Hmm. My entire condo is a cluster-F of cables. not sure if Eliminating a few I'll never see is worth almost $50 bucks. My idea is that the Corsair seems to be a solid PSU that'll fit my needs and then some - and it's a great + RAM combo

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...
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a b ) Power supply
September 6, 2010 4:58:47 PM

yeah i agree modular is kinda stupid unless your like a super-fussy neatfreak :) 
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a b ) Power supply
September 7, 2010 8:07:04 AM

Well the Seasonic is modular and you cant beat a 80+ Gold certification. That's why its pretty OK in pricing considering the 80+Gold certification and being modular. 80+ Gold certification PSU's are very rare. Look at AX750 from Corsair... Its only $10 cheaper than the X750. So why not.

But in a way the Corsair TX750W is also a good PSU. No worries there.
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a b ) Power supply
September 7, 2010 12:34:12 PM

muckle said:
I am leaning toward the gtx 460 now for it's good single performance and great sli for later... but anyway it comes with what looks like a teriffic Seasonic... X750 gold.

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

You can have that or the AX750W from Corsair. You cant go wrong with either PSU's. Both have pretty same specs and both are gold certified. Unless you have extreme bad luck and end up having a faulty one. That's pretty rare. Since you are getting a combo deal on this one, you can go for it.

Hope it helps.
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September 15, 2010 9:10:05 PM

Best answer selected by muckle.
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a b ) Power supply
September 15, 2010 11:06:08 PM

This topic has been closed by Mousemonkey
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