Question about Haswell Combatible PSU

Arbiter_Arbiter · Jan 28, 2014

I currently have a old Cooler Master UCP 900W PSU (http://www.newegg.com/Product/Product.aspx?Item=N82E16817171033).

I am looking into getting a 4670k CPU and a new MB but I realize that my PSU is not on Cooler Master's Haswell compatible list: http://coolermaster-usa.com/press_release/haswell/haswell.html

Will I run into issues becuase of that? That latter link describes a method of connecting a simple case fan to the PSU directly in order to take care of possible shut down issues.

Any help would be awesome and thank you in advance!

Dark Lord of Tech · Jan 28, 2014

I would upgrade to a better more reliable Haswell compatible supply.

That is a poor quality PSU.

Arbiter_Arbiter · Jan 28, 2014

Something along the lines of a Seasonic when they go on sale?

lonewolf7 · Jan 28, 2014

Yes that was a simple temporary solution made up by CM, which I personally wont believe. So as Blackbird said get a decent HASWELL compatible PSU for your own good. BTW the sleep states are automatically disabled in most Mb's though. But still get a decent PSU like this one :

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX 650W 80+ Bronze Certified Semi-Modular ATX Power Supply ($96.98 @ SuperBiiz)
Total: $96.98
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-01-28 14:08 EST-0500)

Yes you could go with Seasonic top of the lone PSU maker. My linked one also made by Seasonic, and its a solid one.

Dark Lord of Tech · Jan 28, 2014

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Rosewill Capstone 750W 80+ Gold Certified Semi-Modular ATX Power Supply ($89.99 @ Newegg)
Total: $89.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-01-28 14:10 EST-0500)

Arbiter_Arbiter · Jan 28, 2014

One last question and I must thank you both for your time.

650/750 W would be adequate for SLI GTX 780s along with 4670k?

Dark Lord of Tech · Jan 28, 2014

I would go to 850 for 2 780's.

Arbiter_Arbiter · Jan 28, 2014

Thank you both again for your responses. I will be buying a new PSU along with my new CPU+MB.

Dark Lord of Tech · Jan 28, 2014

Great choice , enjoy your new components.

lonewolf7 · Jan 29, 2014

A single GTX 780 will require 42 Ampere on +12V rail of a 550/600W PSU, the card only require 250-270W (reference and non-reference) of power, so in SLI the cards will need approx. 540W, so 750/800W PSU will do. But if you get a bigger PSU it will be better for you, it wont cost you a penny more to operate.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: XFX ProSeries 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($134.99 @ NCIX US)
Total: $134.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-01-29 11:01 EST-0500)

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Question about Haswell Combatible PSU

Arbiter_Arbiter

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Dark Lord of Tech

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lonewolf7

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