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Advice on budget power supply units

Last response: in Components
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March 18, 2012 7:05:37 PM

Hi there,

I am unsure which PSU to go for. I plan to configure SLI/CrossFire for my new build in future.

Here are two PSU's i am interested but need advice:

600W Corsair CMPSU-600CXv2 Builder Series 600W Power Supply (PSU) ATX v2.3 80 Plus Certified
It has 2 x 6+2pin PCI-E Power connectors.

OR

550W PSU, OCZ Technology ZS Series OCZ-ZS550W-UK, 86% Eff', 80 PLUS Bronze, SLI/CrossFire, EPS 12V, Quiet Fan, ATX v2.2
This has also 2 x 6+2pin PCI-E Power connectors.

Thanks in advance,
a b ) Power supply
March 18, 2012 7:14:45 PM

both have similar power on their 12v rail (38-40a) have solid reviews for their price points. the OCZ ZS offers a bit more efficiency but nothing major over the CX600. both are good choices for budget units.

as for SLI/CF, unless you plan to run dual AMD 5770 or something similar in power demands, I would get a PSU with a bit more power. What video cards to you plan to purchase?
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March 18, 2012 7:38:31 PM

For now i am going to be running HD6770 because I don't do heavy gaming but in future this may change as you know so i was thinking of getting 600W Corsair for future expansion.

I understand that if i do consider heavy gaming in future I will have to upgrade my Graphics card or purchase another HD6770 and run them side by side :) 

Thanks & Regards,
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a b ) Power supply
March 18, 2012 9:10:30 PM

STOP!

That CX600 makes a very annoying whine when it's plugged into the wall.

I recommend you get a TX650
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a b ) Power supply
March 18, 2012 11:02:08 PM

e56imfg said:
STOP!

That CX600 makes a very annoying whine when it's plugged into the wall.

I recommend you get a TX650


while some people report that, the vast majority make no noise at all.
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