Be Quiet Straight Power 11 Test

Tom'southward Hardware Verdict

The be tranquility! Straight Power 11 Platinum with 650W max power is silent and uses quality parts. These features are not enough, though, to permit information technology to run across the competition effectively, and its cost in the US market is stiff.

Pros

+
Full ability at 47 degrees Celsius
+
Silent functioning
+
Efficient
+
Quality components
+
Long hold-up time
+
Fully modular
+
Compatible with the alternative sleep style
+
Acceptable distance between the peripheral connectors

Cons

-
Expensive
-
The protection features are not configured correctly
-
Not so high overall functioning
-
One of the EPS cables has two of these connectors
-
High Vampire Power
-
Lower than 70% efficiency with 2% load
-
Mediocre soldering quality

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Specifications and Part Analysis

The be quiet! Direct Power eleven Platinum with 650W capacity (E11-PT-650) offers expressionless silent operation and has compact dimensions. Are those two features enough, though, to match opponents like the formidable Corsair RM650x and the Seasonic Focus Plus Platinum 650W? Although the RM650x has a lower efficiency rating in the 80 PLUS scheme, still its overall functioning is notably college than the E11-PT-650, and the same goes, of course, for the Seasonic model. Given the loftier prices of all be quiet! products in the U.s., at that place is no reason to select the E11-PT-650 over the two products mentioned above. It's a solid choice but non one of the all-time ability supplies.

The new Straight Ability 11 Platinum line from exist repose! is made by FSP, like the previous ane, and uses a new platform featuring a full-bridge topology. The Straight Power 11 Platinum models commencement from 550W and get upward to 1200W, for users that need more than power. The older, Gold, line starts from 450W and reaches up to 1000W. Too the different capacities, the number of EPS connectors has besides been increased in the new models. Only the E11-PT-550 comes with a single EPS, with all the other models featuring two, except the 650W and 750W units, which have three EPS connectors! There is no need, of course, for three EPS in whatsoever power supply. The E11-PT-750W and 650W might come with three EPS connectors, but only 2 of them can be used at the same time, with both of them hosted on the same cable. You can read more on this beneath, in the cablevision and connectors description.

(Image credit: Tom's Hardware )

Product Photos

The E11-PT-650W is the 2nd smallest member of the family. Too a fully modular cable design, information technology also features a Silent Wings 3 fan, which is driven past a relaxed fan speed contour. All be quiet! products are known for their repose functioning, and this PSU is not an exception. Finally, for the internals, FSP used high-quality components, and this is why the toll of this product is increased, particularly in the US market.

(Image credit: Tom'southward Hardware )

Product Photos

Specifications

Manufacturer (OEM)	FSP
Max. DC Output	650W
Efficiency	80 PLUS Platinum, *ETA-A (88-91%)
Racket	*LAMBDA-A+ (15-20 dB[A])
Modular	✓ (Fully)
Intel C6/C7 Power Country Support	✓
Operating Temperature (Continuous Full Load)	0 - 40°C
Over Voltage Protection	✓
Under Voltage Protection	✓
Over Ability Protection	✓
Over Current (+12V) Protection	✓
Over Temperature Protection	✓
Short Circuit Protection	✓
Surge Protection	✓
Inrush Current Protection	✓
Fan Failure Protection	✗
No Load Operation	✓
Cooling	135mm Fluid Dynamic Bearing Fan (BQSIW3-13525-HF)
Semi-Passive Performance	✓
Dimensions (Westward x H x D)	150 x 85 ten 155mm
Weight	1.65 kg (iii.64 lb)
Form Cistron	ATX12V v2.4, EPS 2.92
Warranty	5 Years

Power Specifications

Rail	three.3V	5V	12V1	12V2	12V3	12V4	5VSB	-12V
Max. Power	Amps	24	24	eighteen	18	22	22	3
54.i
Watts	120	649.2	15	3.6
Total Max. Power (West)	650

Ability Distribution

12V1	ATX, Peripheral
12V2	EPS
12V3	PCIe1
12V4	PCIe2

The power distribution is adept, considering the EPS and PCIe connectors are powered past different runway.

Cables & Connectors

Description	Cablevision Count	Connector Count (Total)	Gauge	In Cable Capacitors
ATX connector twenty+4 pin (600mm)	1	1	16-22AWG	No
four+4 pin EPS12V (700mm)	1	1	16AWG	No
4+4 pivot EPS12V (700mm) / 8 pin EPS12V (700mm)	1	two	18AWG	No
2x 6+ii pin PCIe (600mm)	2	four	18AWG	No
SATA (550mm+150mm+150mm+150mm)	1	4	18AWG	No
SATA (550mm+150mm+150mm) / 4-pin Molex (+150mm)	1	3 / 1	18AWG	No
SATA (550mm+150mm) / 4-pin Molex (+150mm+150mm)	i	2 / 2	18AWG	No
FDD Adapter (150mm)	1	i	22AWG	No
Air conditioning Power Cord (1360mm) - C13 coupler	1	i	18AWG	-

Since the PSU just has 1 EPS socket, and be quiet! wanted to equip it with a pair of those connectors, it comes with two different EPS cables. The first hosts a single connector while the second has two of these connectors. The problem is that you cannot fully exploit two of those connectors with the aforementioned cable, peculiarly if you use 18AWG gauges. Each EPS can depict up to 336W, so a pair of them tin can hands damage the corresponding socket on the modular panel, along with the connector on the PSU side. Nonetheless, be quiet! chose to keep with this weird cable considering the PSU has four +12V rails, so with the proper OCP setting on the respective runway, it is safe to employ a pair of EPS on the same cable.

All cables are long enough, and the number of peripheral connectors is satisfactory. Finally, the altitude between the SATA and the 4-pivot Molex is adequate, at 150mm.

(Image credit: Tom'due south Hardware )

Cable Photos

Component Analysis

Nosotros strongly encourage you to have a look at our PSUs 101 article, which provides valuable data almost PSUs and their functioning, assuasive you lot to better sympathize the components nosotros're about to discuss.

General Data	-
Manufacturer (OEM)	FSP
PCB Type	Double Sided
Principal Side	-
Transient Filter	5x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection	NTC Thermistor (SCK-056) & Relay
Span Rectifier(s)	1x
APFC MOSFETs	2x ROHM R6030KNX (600V, 30A, 0.13Ohm)
APFC Heave Diode	1x STMicroelectronics STPSC6H065 (650V, 6A @ 110°C)
Hold-up Cap(due south)	1x Japan Chemi-Con (420V, 270uF, two,000h @ 105°C, KMQ) & 1x Nihon Chemi-Con (450V, 180uF, two,000h @ 105°C, KMR)
Master Switchers	4x ROHM R6020KNX (600V, 20A, 0.196Ohm)
IC Commuter	2x Silicon Labs Si8233BD
APFC Controller	Champion CM6500UNX
Resonant Controller	Champion CM6901X
Topology	Primary side: Full-Bridge & LLC converter Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side	-
+12V MOSFETs	4x Infineon BSC010N04LS (40V, 100A @ 100°C, 1mOhm)
5V & three.3V	DC-DC Converters: 8x Advanced Ability AP3R303GMT (30V, 25A @ 70°C, 3.3mOhm) PWM Controllers: 2x ANPEC APW7164
Filtering Capacitors	Electrolytic: 4x Nippon Chemi-Con (4-10,000h @ 105°C, KY), 2x Nippon Chemi-Con (v-6,000h @ 105°C, KZH), 5x Rubycon (3-half-dozen,000h @ 105°C, YXG) Polymer: 4x FPCAP, 18x United Chemi-Con
Supervisor IC	Weltrend WT7527 (OCP, OVP, UVP, SCP, PG)
Fan Model	be quite! BQ SIW3-13525-HF (135mm, 12V, 0.56A, Fluid Dynamic Bearing Fan)
5VSB Circuit	-
Rectifier	1x CET CEF03N8 FET (800V, 2A @ 100°C, four.8Ohm)
Standby PWM Controller	Leadtrend LD7750R

(Image credit: Tom's Hardware )

Overall Photos

As we too state in the E11-PT-550W review, this line uses a brand new FSP platform, which we will also see in the Hydro PTM Pro line. The design is modern with a full-bridge topology on the primary side, which is supported past an LLC resonant converter, for increased efficiency. On the secondary side, several FETs regulate the +12V rails, and a pair of VRMs handle the pocket-size track.

The parts are of adept quality, especially the bulk caps and the filtering caps on the secondary side.

(Epitome credit: Tom's Hardware )

Transient filter

The transient filter has all necessary parts, to effectively bargain with EMI emissions, both incoming and outcoming.

In that location is one bridge rectifier, while near PSUs in this price range and capacity use two, for lower energy losses.

(Image credit: Tom's Hardware )

APFC converter

The APFC converter uses 2 ROHM FETs and a unmarried boost diode, provided past STMicroelectronics. In that location are two bulk caps, with their combined capacity reaching 450uF, which is depression for a 650W ability supply. But the hold-up time also has to do with the design and the APFC controller's tuning.

(Image credit: Tom'due south Hardware )

Master FETs and primary transformer

The four master switching FETs are configured in a full-bridge topology, with an LLC resonant converter likewise used for higher efficiency.

(Image credit: Tom'due south Hardware )

12V FETs and VRMs

The +12V FETs are installed on the rear side of the PCB, and the soldering quality in this expanse doesn't expect good.

(Image credit: Tom's Hardware )

Filtering caps

The filtering caps are of high quality. Too electrolytic caps, a big number of polymers as well handle ripple filtering.

The supervisor IC is a Weltrend WT7527, which supports all protection features simply OTP (Over Temperature Protection). The latter protection is implemented through some other circuit, which most likely uses the WT7527, to shut down the PSU.

(Image credit: Tom's Hardware )

5VSB Circuit

The primary rectifiers in the 5VSB circuit is a CET CEF03N8 FET, and the standby PWM controller is a Leadtrend LD7750R IC.

(Image credit: Tom's Hardware )

Modular board front

X polymer caps are on the face of the modular console, for an extra ripple filter layer.

(Image credit: Tom's Hardware )

Soldering quality

The soldering quality is mediocre. In several areas the soldering joints are sloppy.

(Image credit: Tom's Hardware )

Cooling fan

The Silent Wings 3 fan that this PSU uses is of top-notch quality. Information technology uses a fluid dynamic bearing, so too beingness silent, information technology will also have an increased lifetime, every bit long equally you don't betrayal it to high operating temperatures.

Aris Mpitziopoulos is a Contributing Editor at Tom'southward Hardware US, covering PSUs.