Do I need to upgrade my 4 year old PSU for haswell build?

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akara083

akara083

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Hey!

So currently my system specs are as follows:

Intel E8400 @3.8GHz (Noctua nh-u12p)
ASUS P5Q pro mobo
Corsair XMS2 4Gb @1066mhz
XFX Radeon HD 7850 (stock)
PC Power &Cooling Silencer 610W
Crucial M4 256GB SSD
Seagate 500GB HD

I plan on upgrading to this:

Intel i5 4670K Overclocked (Noctua nh-u12p)
ASUS Z87-A (LGA1150)
Corsair Vengeance Blue 8GB DDR3-1600
XFX Radeon HD 7850 (stock)
PC Power &Cooling Silencer 610W
Crucial M4 256GB SSD
Seagate 500GB HD

Based on your experience, do you think my current 4 year old PSU @610W would do the trick?

I tried using this power consumption calculator (accounting for the age of the PSU) and it says I should be fine, thoughts?

http://www.extreme.outervision.com/PSUEngine
 
Solution
D
You only have an HD 7850. Meaning you only need a 450w power supply. The 550w unit I recommended leaves you headroom to upgrade to a much more powerful GPU in the future. You could easily run dual 7850s on that Seasonic.

Here is a list of power requirements for systems with pretty much any GPU. You should go by the list but it's overstated a bit since not all power supplies are created equal. So with a high quality unit you can really go with about 50 watts less per setup listed. Most people drastically overpower their systems.

http://www.realhardtechx.com/index_archivos/Page362.htm
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akara083

akara083

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I assumed it was, I was just concerned that newer parts needed more power and I needed an upgrade.

Thanks for the advice!
 
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Deleted member 217926

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You have an excellent power supply. It is not however, compatible with the low power states of Haswell. Notice the listings right under warranty.

http://www.realhardtechx.com/index_archivos/Page1418.htm

Does that mean you need to replace it? No. You can disable the C6/C7 states in BIOS.

Now if you did want to replace it and maintain the same quality while moving to 80 Plus Gold and being modular then this is an excellent choice that will not break the bank.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151119
 
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akara083

akara083

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Interesting, thanks for the info. So, aside from being modular, the advantages of getting the power supply you listed is that the idle power consumption for 4th gen chips is reduced? Is that why I can get away with a 500W PSU like you suggested? 500W seems on the low side.
 
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Deleted member 217926

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You only have an HD 7850. Meaning you only need a 450w power supply. The 550w unit I recommended leaves you headroom to upgrade to a much more powerful GPU in the future. You could easily run dual 7850s on that Seasonic.

Here is a list of power requirements for systems with pretty much any GPU. You should go by the list but it's overstated a bit since not all power supplies are created equal. So with a high quality unit you can really go with about 50 watts less per setup listed. Most people drastically overpower their systems.

http://www.realhardtechx.com/index_archivos/Page362.htm
 
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akara083

akara083

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Sweet, thanks again for the link!

So, if I end up keeping my current PSU, the only disadvantage is that it would use more power when the Haswell CPU is at idle. The newer G-series reduces idle wattage?

Does that mean a cheaper power bill? Is that the only reason to upgrade my PSU?

I may upgrade sometime down the line, once I'm not broke from buying a new CPU/Mobo/Ram
 
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