Kolink Enclave Series 700 W Review 11

Kolink Enclave Series 700 W Review

Load Regulation, Hold-up Time, Inrush Current, Efficiency & Noise »

Introduction


We would like to thank Kolink for supplying the review sample.


Kolink is known for its high performance per buck products. In other words, this brand definitely knows how to make well-performing, but affordable products happen. Besides cases and various accessories, Kolink also has several PSU lines in its portfolio, of which the most recent addition is the Enclave series.



Enclave units come in three flavors, in capacities of 500 W, 600 W, or 700 W. All are 80 PLUS Gold certified and Cybenetics ETA-A efficiency and LAMBDA-A noise certified, which means they indeed are efficient and silent.



Specifications

Kolink KL-G700FM Features & Specifications
Max. DC Output700 W
PFCActive PFC
EfficiencyETA-A & 80 PLUS Gold
NoiseLAMBDA-A
Modular
Intel C6/C7 Power State Support
Operating Temperature0–40 °C
ProtectionsOver Voltage Protection
Under Voltage Protection
Over Power Protection
Over Temperature Protection
Over Current Protection
Short Circuit Protection
Cooling120 mm rifle bearing fan (EFS-12E12H)
Semi-passive OperationNo
Dimensions150 mm (W) x 85 mm (H) x 160 mm (D)
Weight1.57 kg (3.46 lb)
ComplianceATX12V v2.31, EPS 2.92
Warranty3 years
Price at Time of Review (excl. VAT)67.14€



Kolink KL-G700FM Power Specs
Rail3.3 V5 V12 V5 VSB-12 V
Max. Power16 A16 A58 A3 A0.5 A
100 W696 W15 W6 W
Total Max. Power700 W



Cables and Connectors

Modular Cables
DescriptionCable CountConnector Count (Total)GaugeIn Cable Capacitors
ATX connector 20+4 pin (500 mm)1118-22AWGNo
4+4 pin EPS12V (650 mm)1118AWGNo
6+2 pin PCIe (600 mm+100 mm) 2418AWGNo
SATA (450 mm+120 mm+120 mm)2620AWGNo
SATA (450 mm) / 4-pin Molex (+120 mm+120 mm)22 / 420AWGNo

The PSU only has modular cables, but all are sufficiently long. With the exception of the EPS connector, there are also enough connectors. Finally, the distance between peripheral connectors is short at only 120 mm. Ideally, these should be 150 mm apart.



Component Analysis

Kolink KL-G700FM Parts Description
General Data
Manufacturer (OEM)Kolink
PCB TypeDouble Sided
Primary Side
Transient Filter4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Bridge Rectifier(s)1x GBU1506 (600 V, 15 A @ 100 °C)
Inrush Current ProtectionNTC Thermistor & Relay
APFC MOSFETs2x Infineon IPA50R190CE (550 V, 15.7 A @ 100 °C, 0.19 Ohm)
APFC Boost Diode1x Infineon IDH06G65C6 (650 V, 6 A @ 145 °C)
Hold-up Cap(s)1x Teapo (420 V, 560 uF, 2,000 h @ 105 °C, LG)
Main Switchers4x Great Power GPT13N50D (500 V, 13 A, 0.49 Ohm)
APFC ControllerOn Semiconductor NCP1654
Resonant ControllerChampion CM6901T6
TopologyPrimary side: Full-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V6x Infineon PSMN1R4-40YLD (40 V, 214 A @ 100 °C, 2.65 mOhm @ 175 °C)
5V & 3.3VDC-DC Converters: 4x Excelliance MOS EMB09N03HR (30 V, 35 A @ 100 °C, 9.5 mOhm)
PWM Controllers: ANPEC APW7159
Filtering CapacitorsElectrolytics: 7x Teapo (1 - 3,000 h @ 105 °C, SC), 3x Teapo (2,000 h @ 105 °C, SH), 1x Asia'x (105°C, TMX)
Polymers: 8x Teapo
Supervisor ICIN1S313I-DAG & UTC393
Fan ModelDWPH EFS-12E12H (120 mm, 12 V, 0.50 A, Rifle Bearing Fan)
5VSB Circuit
Rectifier(s)1x Diodes Incorporated MBR2045CT SBR (45 V, 20 A)
Standby PWM ControllerInfineon ICE2QR4765


There are no large heatsinks on this platform, which uses a full-bridge topology along with an LLC resonant converter on the primary side. On the secondary side, a pair of DC-DC converters generate the minor rails. Kolink didn't want to reveal the name of the original manufacturer (OEM) and only stated that they also had a role in the design, which is why I cited Kolink as the OEM in the table above.


The transient filter is complete, and the single bridge rectifier is bolted to a small heatsink.


There is an MOV and an NTC thermistor, which is supported by a bypass relay.


The APFC converter uses a single Teapo cap rated at 105 °C. After the hold-up cap, four FETs chop the DC signal into short pulses—their amplitude is the magnitude of the input voltage. The duty cycle is controlled by a Champion CM6901 controller.


The +12V FETs are installed on the solder side of the PCB, along with several other interesting components.


Considering the retail price, soldering quality is actually very good.


Almost all filtering caps are provided by Teapo. I am not fond of the SC line because of its low lifetime. Thankfully, eight polymer caps also help with ripple filtering.


The DC-DC converters that handle the minor rails.


The 5VSB regulator circuit.


The cooling fan uses a rifle bearing; that is, according to Kolink's PSU product manager. However, the same model is used and described as a sleeve-bearing fan in other budget PSUs. I asked Kolink's PSU PM, and he said that the same model number is used for several types of fans to save money on safety certifications. Indeed, several other fan vendors do use the same model number for both rifle and plain sleeve bearing fans.
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