XFX XPS-650W Power Supply Review

paulktreg - 2009-04-13 18:27:56 in Power Supplies
Category: Power Supplies
Reviewed by: paulktreg   
Reviewed on: February 18, 2010
XFX
XFX
Price: $119.99

Introduction:

XFX, probably better known for their high-quality graphics cards, recently introduced a small range of enthusiast power supplies. Two Black Edition units with DC output powers of 750W and 850W, and a 650W XXX Edition power supply are aimed at the performance gaming market. OCC has already put the XFX 850W Black Edition power supply through its paces and it performed very well. This time around, it's the turn of the XFX 650W XXX Edition power supply, so let's have a look at it and then see how well it performs.

Closer Look:

The packaging of the XFX 650W Black Edition power supply is a box enclosed in a removable cardboard sleeve, which carries all the product information, which presumably makes the box usable for all three power supplies in the range. The color theme is predominantly matte black and lime green with a gloss finish on the slightly raised XXX Edition and 650W text. The top face of the box carries an abstract image of the power supply, complete with small hexagonal bolt heads stamped into the cardboard, giving the power supply packaging an industrial theme.  The modular PSU, 80 Plus Bronze and Nvidia SLI Ready logos complete the top face. The base of the packaging carries a small photograph of the XFX 650W XXX Edition power supply, which is gloss finished along with a key features list, fixed and modular cable types, and quantities with illustrative photographs.

 

 

 

 

 

 

 

 

 

 

 

One side of the packaging shows the specification table along with model number and agency approval logos, and the opposite face carries product type information with the XFX Play Hard and 80 Plus Bronze logos.

 

 

Plain black end panels carry product type and serial number barcodes and a useful black plastic carry handle.

 

Inside the cardboard sleeve is a matte black box bearing the XFX Play Hard logo. The box is actually made up of two boxes locked together using cardboard tabs. The lower large box contains the power supply and the thinner top box, shown in the photograph on the right, houses the modular cables and cable bag.

 

 

 

The lime green power supply fan is the first thing visible when the modular cable box is lifted off the top. The power supply sits snugly in the center of the box and is protected on all sides by cardboard inserts. 

 

 

The insert on the left is a removable cardboard box containing the power cord while on the right is a cardboard insert covering the captive cable storage area. The accessories include a user manual, power cord, and black modular cable bag with cables enclosed.

 

 

This product has eye-catching and very well designed packaging, which offers good protection to the power supply without the use of foam. The accessories didn't include any power supply mounting screws or cable ties which is a little disappointing but I think this was possibly at mistake at the packing stage.

Closer Look:

The XFX XXX Edition 650W power supply is finished in simple matte black, but it's the industrial look in combination with the lime green fan and modular cable connectors, that give it its unique appearance.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The front of the power supply continues the industrial theme with a blocked form that neatly frames the modular cable connectors and captive cable exit port. There's little room for error when connecting up the modular cables because XFX have used 6-pin for the peripheral and SATA cables and 8-pin for the PCI-E cables. The modular cable connector panel is actually made of sturdy plastic which exactly matches the case paint color and is firmly held in place with four screws.

 

 

The sides of the power supply carry shaped labels that sit in shaped recesses in the metal case, a XFX Play Hard XXX Edition label on one side, and specification table with agency approval and 80 Plus Bronze logos on the opposite face.

 

 

The fan grill is, unlike many power supplies, part of the case and carries the XFX graphic at its center. The base is unadorned apart from a single screw head which is part of the printed circuit board fixing.

 

 

The captive cable set consists of a motherboard 20/24-pin connector, 4+4-pin ATX12V/EPS12V connector, 8-pin EPS12V connector, 6-pin PCI-E connector, and 6+2-pin PCI-E connector. All the cables are covered in black mesh sleeving, which continues all the way into the power supply.

 

The thinner black box that sits over the power supply contains the modular cable bag shown below. The black bag is decorated with a section of the XFX graphic in lime green and the XFX Play Hard logo in white, and consists of two separate pockets with Velcro sealed fold over tops. 

 

 

The two sections fold together like a book which is held together by a couple of Velcro pads in the corners.

 

The modular cable set is fully braided in black mesh screen which is held in place using glue lined heat shrink sleeving.

 

The fan used on the XFX XXX Edition 650W is a good quality Adda model ADN512HB-A91 and, unlike most power supplies, is mounted on its own bracket rather than the case.

 

 

The XFX XXX Edition 650W power supply printed circuit board is the same board used in PC Power & Cooling units and on closer inspection the word Silencer is still visible after attempts to hide it with black marker. The board is marked with 610/660/750W on the screen printing so use in a 650W unit shouldn't be a problem whether it's an original PC Power & Cooling design or modified for use by XFX.

 

All the capacitors that are visible are rated at the more welcome 105°C temperature rating and carry a KZE identification mark which is probably the low impedance range from United Chemi-Con. 

 

 

The XFX XXX Edition 650W power supply is a well built unit with great looks that comes in well designed sturdy packaging. It may not appeal to everybody, but at the end of the day its performance that counts.

Specification:

Review Sample: XFX XXX Edition 650W Power Supply, Model Number XPS-650W-3XS, Part Number P1-650X-CAG9.

 

 

 

 

 

 

 

 

 

 

 

 

Ratings Table:

 

XFX XXX Edition 650W Power Supply Specification Table
AC Input
100-240VAC, 10A, 50/60Hz
DC Output
+3V3
+5V
+12V
-12V
+5VSB
24A
30A
52A
0.8A
3A
170W
624W
9.6W
15W
650W

 

 

System Protection:

Very little specific information given in the user manual or on the packaging.

"Total Protection: Over Voltage/Under Voltage/Over Current/Short Circuit Protection. Total protection for your power supply, your system and yourself."

 

Safety & Agency Approvals:

This information as been lifted from the packaging because the user guide makes no mention of agency approvals.

FCC, TUV, UL, CB, CTick, Intertek S, CE and RoHS compliant.

 

Power Supply Weight:

 

Power Supply Weight
Manufacturer/Model
Weight
XFX XXX Edition 650W Power Supply
2.4kg
5.3lbs

 

Power Supply Connectors:

 

XFX XXX Edition 650W Power Supply Connectors
20/24 Pin Motherboard
Captive
1
ATX12V/EPS12V 4+4 Pin
Captive
1
EPS12V 8 Pin
Captive
1
PCI-E 6 Pin
Captive
1
PCI-E 6+2 Pin
Captive
1
Peripheral 4 Pin
Modular
6
FDD
Modular
2
SATA Power
Modular
6
PCI-E 6+2 Pin
Modular
2

 

Power Supply Cable Lengths:

 

 

XFX XXX Edition 650W Power Supply Connector Cable Lengths
Captive
PSU > 22" > 20+4 Pin Motherboard
1
Captive
PSU > 22" > 4+4 Pin ATX12V/EPS12V
1
Captive
PSU > 22" > 8 Pin EPS12V
1
Captive
PSU > 24" > PCI-E 6 Pin
1
Captive
PSU > 24" > PCI-E 6+2 Pin
1
Modular
PSU > 22" > Peripheral > 6" > Peripheral > 6" > Peripheral > 6" > FDD
2
Modular
PSU > 22" > SATA > 6" > SATA > 6" > SATA
2
Modular
PSU > 22" > PCI-E 6+2 Pin
2

 

Features:

Exactly as printed in the user guide.

Testing:

For more information on how we test our power supplies, please browse our testing methodology.

 

 

 

 

 

 

 

 

 

 

 

Electrical Safety:

 

Electrical Safety Test Class 1
Manufacturer/Model
Pass/Fail
XFX XXX Edition 650W
Pass

 

Short Circuit Protection:

I short circuited the 3V3, 5V0 and all of the 12V lines in turn. The power supply did shut down, and once the short was removed and the unit switched off for at least one second, resumed normal operation. Although listed here at the beginning of the testing section, I tend to leave this test until the very end, in case it doesn't quite go to plan.

 

DC Output Voltage Load Regulation:

 

Mains Input Voltage 110VAC

 

 

XFX XXX Edition 650W Power Supply DC Output Voltage Load Regulation
Supply = 110VAC/50Hz
PSU DC Rail
Measured Voltage(V)
3V3
3.41
5V0
5.03
+12V
12.21
-12V
10.75
5VSB
4.98
Total PSU Loading = Approx. 25W (1 x WD800 IDE HDD)

 

XFX XXX Edition 650W Power Supply DC Output Voltage Load Regulation
Supply = 110VAC/50Hz
PSU
DC Rail
Rail Loading Amps (A)
Rail Loading Watts (W)
Measured Voltage (V)
ATX12V V2.2 Limits (V)
Pass/Fail
+3V3
3.27
11.15
3.41
3.135 – 3.465
Pass
+5V
4.88
25.03
5.13
4.75 – 5.25
Pass
+12V
7.69
93.74
12.19
11.4 – 12.6
Pass
-12V
0.35
4.16
11.90
10.8 – 13.2
Pass
+5VSB
2.09
10.37
4.96
4.75 – 5.25
Pass
Total PSU Loading = 144W (22% of Rated Maximum Output Power)

 

XFX XXX Edition 650W Power Supply DC Output Voltage Load Regulation
Supply = 110VAC/50Hz
PSU
DC Rail
Rail Loading Amps (A)
Rail Loading Watts (W)
Measured Voltage (V)
ATX12V V2.2 Limits (V)
Pass/Fail
+3V3
8.59
29.20
3.40
3.135 – 3.465
Pass
+5V
9.98
50.80
5.09
4.75 – 5.25
Pass
+12V
21.03
255.51
12.15
11.4 – 12.6
Pass
-12V
0.36
4.34
12.07
10.8 – 13.2
Pass
+5VSB
2.05
10.11
4.93
4.75 – 5.25
Pass
Total PSU Loading = 350W (54% of Rated Maximum Output Power)

 

XFX XXX Edition 650W Power Supply DC Output Voltage Load Regulation
Supply = 110VAC/50Hz
PSU
DC Rail
Rail Loading Amps (A)
Rail Loading Watts (W)
Measured Voltage (V)
ATX12V V2.2 Limits (V)
Pass/Fail
+3V3
13.74
46.30
3.37
3.135 – 3.465
Pass
+5V
14.94
75.29
5.04
4.75 – 5.25
Pass
+12V
38.88
470.44
12.10
11.4 – 12.6
Pass
-12V
0.36
4.41
12.26
10.8 – 13.2
Pass
+5VSB
2.05
10.00
4.88
4.75 – 5.25
Pass
Total PSU Loading = 606W (93% of Rated Maximum Output Power)

 

Mains Input Voltage 230VAC

 

 

XFX XXX Edition 650W Power Supply DC Output Voltage Load Regulation
Supply = 230VAC/50Hz
PSU DC Rail
Measured Voltage(V)
3V3
3.43
5V0
5.04
+12V
12.22
-12V
10.75
5VSB
4.99
Total PSU Loading = Approx. 25W (1 x WD800 IDE HDD)

 

XFX XXX Edition 650W Power Supply DC Output Voltage Load Regulation
Supply = 230VAC/50Hz
PSU
DC Rail
Rail Loading Amps (A)
Rail Loading Watts (W)
Measured Voltage (V)
ATX12V V2.2 Limits (V)
Pass/Fail
+3V3
3.28
11.18
3.41
3.135 – 3.465
Pass
+5V
4.90
25.14
5.13
4.75 – 5.25
Pass
+12V
7.67
93.50
12.19
11.4 – 12.6
Pass
-12V
0.35
4.16
11.90
10.8 – 13.2
Pass
+5VSB
2.09
10.39
4.97
4.75 – 5.25
Pass
Total PSU Loading = 144W (22% of Rated Maximum Output Power)

 

XFX XXX Edition 650W Power Supply DC Output Voltage Load Regulation
Supply = 230VAC/50Hz
PSU
DC Rail
Rail Loading Amps (A)
Rail Loading Watts (W)
Measured Voltage (V)
ATX12V V2.2 Limits (V)
Pass/Fail
+3V3
8.67
29.48
3.40
3.135 – 3.465
Pass
+5V
9.79
49.83
5.09
4.75 – 5.25
Pass
+12V
21.00
255.36
12.16
11.4 – 12.6
Pass
-12V
0.36
4.34
12.06
10.8 – 13.2
Pass
+5VSB
2.05
10.11
4.93
4.75 – 5.25
Pass
Total PSU Loading = 349W (54% of Rated Maximum Output Power)

 

XFX XXX Edition 650W Power Supply DC Output Voltage Load Regulation
Supply = 230VAC/50Hz
PSU
DC Rail
Rail Loading Amps (A)
Rail Loading Watts (W)
Measured Voltage (V)
ATX12V V2.2 Limits (V)
Pass/Fail
+3V3
14.00
47.18
3.37
3.135 – 3.465
Pass
+5V
15.12
76.20
5.04
4.75 – 5.25
Pass
+12V
38.95
471.68
12.11
11.4 – 12.6
Pass
-12V
0.36
4.41
12.26
10.8 – 13.2
Pass
+5VSB
2.05
10.00
4.88
4.75 – 5.25
Pass
Total PSU Loading = 609W (93% of Rated Maximum Output Power)

 

The XFX XXX Edition 650W power supply would not start with no load, so to give some idea of the voltages at very low loading an old Western Digital WD800 hard drive was connected up to pull approximately 25W. It was enough to start the power supply, but too low for the regulation to kick in on the -12V rail which sat at only -10.75V. This isn't a problem but goes to illustrate that some power supplies require their rails loaded to a minimum level before voltage regulation kicks in correctly. The voltage regulation on the XFX XXX Edition 650W power supply is on the whole excellent. The +5VSB rail never actually reached 5V which is unusual but not a problem and everything is within the limits set down by the ATX12V V2.2 specification.

Testing:

Efficiency and Power Factor:

 

 

 

 

 

 

 

 

 

 

 

 

 

XFX XXX Edition 650W Power Supply Power Factors & Efficiency
Supply = 110VAC/50Hz
DC Load (W)
AC Load (W)
PF
Efficiency (%)
Pass/Fail
25
32
0.96
N/A
N/A
144
176
0.98
82
Pass
350
417
0.99
84
Pass
607
770
1.00
79
Pass

 

XFX XXX Edition 650W Power Supply Power Factors & Efficiency
Supply = 230VAC/50Hz
DC Load (W)
AC Load (W)
PF
Efficiency (%)
Pass/Fail
25
32
0.75
N/A
N/A
144
170
0.93
85
Pass
349
407
0.96
86
Pass
609
730
0.97
83
Pass

 

The efficiency and power factor are well within the requirements of the ATX12V V2.2 specification, so an overall pass in this section. The power supply does however fail to meet the requirements of its claimed 80 Plus Bronze certification following the OCC power supply testing methodology. Bronze level certification requires levels of 82%, 85% and 82% efficiency at 20%, 50% and 100% loading with a power factor of 0.9 or greater at 50% load. Power factor levels are fine but the power supply fails to reach 82% efficiency at 100% (actually 93%) loading with an AC input of 110VAC. It is presumed the 80 Plus certification is for 115VAC, the standard for most if not all power supplies, but there is a problem when searching for the certificate on the 80 Plus Org website, it isn't listed under XFX.

 

AC Ripple On DC Outputs:

 

I have consistently found the AC ripple levels on the DC rails to be more or less equal with a 110VAC or 230VAC mains supply. The results given below are for 230VAC only, but I will continue to check the levels at 110VAC during testing and publish them below if there are any significant differences.

 

AC Ripple On +3V3 Rail at 230VAC

Oscilloscope settings: Amplitude = 5mv/div, Timebase = 5uS/div

 

AC Ripple On +5V0 Rail at 230VAC

Oscilloscope settings: Amplitude = 5mv/div, Timebase = 5uS/div

 

AC Ripple On +12V Rail at 230VAC

Oscilloscope settings: Amplitude = 10mv/div, Timebase = 5uS/div

 

AC Ripple On -12V Rail at 230VAC

Oscilloscope settings: Amplitude = 10mv/div, Timebase = 5uS/div

 

AC Ripple On +5VSB Rail at 230VAC

Oscilloscope settings: Amplitude = 5mv/div, Timebase = 5uS/div

 

XFX XXX Edition 650W Power Supply AC Ripple/Noise
Supply = 230VAC/50Hz
DC Rail
+3V3
+5V0
+12V
-12V0
+5VSB
ATX12 Max (mV p-p)
50
50
120
120
50
Ripple (mV p-p)
30
30
90
60
30
Pass/Fail
Pass
Pass
Pass
Pass
Pass

 

The AC ripple/noise levels on the XFX XXX Edition 650W rails are a little higher than some other power supplies in this class, but they still fall under the ATX12V V2.2 permitted levels.

Testing:

Temperature, Noise Levels and Fan Speeds:

 

I am not going to give a pass or fail in this section, as the ATX12V V2.2 does not really have any references on which to base a decision.

Temperatures are purely for information only, as there are too many variables involved when installed in a case, which, by the way, it wasn't. Ambient temperature, processor cooling efficiency and case cooling fans all play their part on the temperature of the air entering the power supply, and consequently the temperature of the air leaving it. No valid conclusions can be made from this test.

 

XFX XXX Edition 650W Power Supply
Temperature & Fan Speeds @ 110/230VAC
DC Loading(W)
Temp In (°C)
Temp Out (°C)
Δ Temp (°C)
Fan Speed (RPM)
25/25
N/A
N/A
N/A
640/645
144/144
22.7/23.1
29.1/31.2
6.4/8.1
639/645
350/349
24.2/24.3
42.6/43.7
18.4/19.4
812/750
607/609
26.2/23.2
38.3/37.4
12.6/14.2
1905/1904

 

The XFX XXX Edition 650W power supply cooling fan was whisper quiet up to 50% loading, but it became noticeably louder at maximum loading.  This is to be expected and is on par with other power supplies in this class.

Conclusion:

Price Per the Watt:

Power Supply XFX XXX Edition 650W at $119.99 = $0.19/Watt (02-2010)

 

It is becoming increasingly difficult to rate high end power supplies by performance alone probably due to the fact that what you find under the hood is produced by the same small group of printed circuit board manufacturers. The power supply market is very competitive and if performance levels are all very similar then price and/or a unique appearance may very well be the deciding factor when it comes to choosing a power supply for the next build or upgrade.

XFX power supplies certainly have a unique appearance with their industrial themed looks and lime green cooling fan and modular cable connectors, but how do they perform? The XFX XXX Edition 650W performed very well and gave good quality, well regulated DC across all the rails up to full load. What did let the power supply down was its failure to meet the required levels of efficiency for its claimed 80 Plus Bronze certification following the OCC power supply testing methodology and the fact that isn't listed on the 80 Plus Org website at the time of writing this review.

The XFX XXX Edition 650W power supply is certainly worthy of consideration for use in any high gaming system and will easily handle any single high-end graphics card gaming rig with plenty of room to overclock. There are a total of four PCI-E connectors available on this power supply so crossfire or SLI is definitely an option but keep an eye on power requirements especially with the more power hungry Nvidia offerings. The XFX XXX Edition 650W power supply performed very well and was only let down by its failure to meet the requirements of its claimed 80 Plus Bronze certification following the OCC power supply testing methodology. The efficiency levels are still pretty good and I have no hesitation in awarding the XFX XXX Edition 650W power supply a OCC Silver award.

 

Pros:

 

Cons: