XFX PRO 750 W Black Edition Full Modular Power Supply Review

ByMike S.

Voltage Regulation Tests

Contents

The ATX12V specification states that positive voltages must be within 5% of their nominal values, and negative voltages must be within 10% of thei
r nominal values. We consider a power supply as “flawless” if it shows voltages within 3% of its nominal values. In the table below, you can see the power supply voltages during our tests and, in the following table, the deviation, in percentage, of their nominal values.

The XFX PRO 750 W Black Edition Full Modular presented outstanding voltage regulation. Seasonic promises 2% voltage regulation for its KM3 platform, but the maximum deviation we saw was 1.20%!

Input Test 1 Test 2 Test 3 Test 4 Test 5
+12VA +12.12 V +12.12 V +12.08 V +12.06 V +12.04 V
+12VB +12.13 V +12.10 V +12.05 V +12.01 V +11.97 V
+5 V +5.03 V +5.02 V +5.01 V +5.01 V +5.00 V
+3.3 V +3.33 V +3.31 V +3.31 V +3.30 V +3.30 V
+5VSB +5.06 V +5.03 V +5.00 V +4.97 V +4.94 V
-12 V -11.50 V -11.63 V -11.77 V -11.95 V -12.11 V
Input Test 1 Test 2 Test 3 Test 4 Test 5
+12VA 1.00% 1.00% 0.67% 0.50% 0.33%
+12VB 1.08% 0.83% 0.42% 0.08% -0.25%
+5 V 0.60% 0.40% 0.20% 0.20% 0.00%
+3.3 V 0.91% 0.30% 0.30% 0.00% 0.00%
+5VSB 1.20% 0.60% 0.00% -0.60% -1.20%
-12 V 4.35% 3.18% 1.95% 0.42% -0.91%

Let’s discuss the ripple and noise levels on the next page.

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One Comment

  1. Man I wanted to leave a comment on this psu, It’s been running strong since I purchased it around 13′-15′ iirc. It has been in multiple systems, currently powering a 3700x + 6800xt and some ssds one hdd and couple of nvme drives. I am genuinely surprised/happy at how long it has lasted and it’s still going! Potentially it will last till my kids are old enough for a pc!

    Probably my finest pc part selection I’ve ever made.
    Will be getting a seasonic for my next psu since XFX stopped making psu’s.

    Reply

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