Is my PSU enough for my new build?

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w4rpath

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Sep 26, 2009
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parts list: amd 8350 - HD 6970 - 8 gbsniper 1866 ram - GIGABYTE GA-990FXA-UD3 mobo - corsair 450d case - kingston 240gb SSD - dvd-rw drive - I will also be pugging in headsets and 4 extra 120mm fans.

(nothing will be overclocked)

I currently use a Ultra LSP650 650-Watt Power Supply ( it currently runs my thuban 2.6 x6 - HD 6970 - 1333 gskill 8 gb - basic biostar mobo - 120gb ssd - dvd-rw - 4extra 120mm fans)

I am basically doing a few upgrades and I want to know if the Ultra lsp650 will hold up. Or should I just invest in a new one. Also If you guys recommend a new one what Wattage should i get and what brand. I was thinking about getting a corsair, but I read that the cx line uses parts from China vs Japan. Please help, I am a noob :)
 
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Should be good. Both processors are pretty much the same wattage range (Thuban is a 135W, I believe the 8350 is as well) and not much else is really changing except the mobo and the memory with regards to real power draw.
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Titan
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May 18, 2007
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Ultra makes a broad range of PSU qualities and the LSP series falls in tier-5... PSUs people should not be buying or using unless they have absolutely no other (better) choice.

An XFX550 or other similar Seasonic-based model would be more than enough for any reasonable single-GPU build.
 
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lunyone

lunyone

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Feb 22, 2006
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I would personally get a new PSU. Ultra PSU's weren't all that good, from what I remember. You would generally need at least a 450-500w PSU for that setup, but I would favor 500w or better. Here is a good option below, but I generally stick with Antec, Seasonic, Corsair, PCP&C, & XFX.

$60 - $10 MIRc = $50!
49A on the 12v Rail and comes w/2 x 6 + 2 pin PCI-e power connectors for your GPU(s).
EVGA 600 B 80 PLUS BRONZE Certified 600W Active PFC ATX12V v2.31/EPS 12V v2.91 3 Year Warranty 100-B1-0600-KR Power Supply
 
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lunyone

lunyone

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Generally most well built PSU's will lose about 10% of their peak power/year, due to capacitor aging, so getting a new PSU would be the smartest move at this point (IMHO). It's up to you, but I would seriously consider getting a new PSU to go with your new parts, it's a small insurance payment for your new system.
 
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Titan
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May 18, 2007
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If that were true then I would have a couple of sub-zero PSUs.

How quickly capacitors degrade depends on their operating temperature, the amount of current ripple going through them and their equivalent series impedance.

In cheap PSUs, you often get less than optimal output filtering with under-sized chokes, under-sized capacitors with high-ish ESZ and under-sized ripple rating, possibly low temperature rating and they often cram their internal rail shunts right next to capacitors, sometimes so close that the resistor's heat is enough to discolor the capacitors' label.
 
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lunyone

lunyone

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That is true. I was just trying to make a point that this can happen and it is sometimes better to get a new PSU and not chance it with new parts. Just saying :)
 
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