SilverStone DA1650 Gold, 80 PLUS Gold 1650W fully modular ATX power supply, SST-DA1650-G

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SilverStone DA1650 Gold, 80 PLUS Gold 1650W fully modular ATX power supply, SST-DA1650-G


Manufacturer (OEM)

High Power

Max. DC Output



80 PLUS Gold, ETA-A (88-91%)


LAMBDA-S+ (35-40 dB[A])


✓ (Fully)

Intel C6/C7 Power State Support

Operating Temperature (Continuous Full Load)

0 – 50°C

Over Voltage Protection

Under Voltage Protection

Over Power Protection

Over Current (+12V) Protection

Over Temperature Protection

Short Circuit Protection

Surge Protection

Inrush Current Protection

Fan Failure Protection

No Load Operation


135mm Fluid Dynamic Bearing Fan (RL4Z S1352512HH)

Semi-Passive Operation

Dimensions (W x H x D)

150 x 88 x 180mm


2.11 kg (4.65 lb)

Form Factor

ATX12V v2.4, EPS 2.92


3 Years (North America)

Power Specifications
Rail 3.3V 5V 12V 5VSB -12V
Max. Power Amps 25 25 137.5 3 0.3
Watts 130 1650 15 3.6
Total Max. Power (W) 1650
Cables & Connectors
Modular Cables Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (610mm) / 6 pin sense wires (640mm) 1 1 / 1 16-22AWG No
4+4 pin EPS12V (750mm) 2 2 16AWG No
6+2 pin PCIe (610mm+150mm) 4 8 16-18AWG No
8 pin PCIe (610mm) 4 4 16AWG No
SATA (600mm+150mm+150mm+150mm) 4 16 18AWG No
4-pin Molex (600mm+150mm+150mm) 1 3 18AWG No
4-pin Molex (600mm+150mm+150mm) / FDD (+150mm) 1 3 / 1 18-22AWG No
FDD Adapter (105mm) 1 1 22AWG No
AC Power Cord (1680mm) – C19 coupler 1 1 16AWG –
You get a vast number of cables and connectors with this unit, which can easily handle the 1650W max power output. All cables are long and it is nice to see dedicated PCIe cables, hosting one connector each. Moreover, the distance between peripheral connectors is adequate at 150mm.

Image 1 of 8

(Image credit: Tom’s Hardware)
Cable Photos

(Image credit: Tom’s Hardware)

(Image credit: Tom’s Hardware)

(Image credit: Tom’s Hardware)

(Image credit: Tom’s Hardware)

(Image credit: Tom’s Hardware)

(Image credit: Tom’s Hardware)

(Image credit: Tom’s Hardware)
Component Analysis
We strongly encourage you to have a look at our PSUs 101 article, which provides valuable information about PSUs and their operation, allowing you to better understand the components we’re about to discuss.

General Information –
Manufacturer (OEM) High Power
PCB Type Double Sided
Primary Side –
Transient Filter 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection NTC Thermistor (SCK-057) (5Ohm) & Relay
Bridge Rectifier(s) 2x HY GBJ5006 (600V, 50A @ 100°C)
APFC MOSFETs 2x Infineon IPW60R060P7 (650V, 30A @ 100°C, Rds(on): 0.06Ohm)
APFC Boost Diode 2x Infineon IDH06G65C5 (650V, 6A @ 145°C)
Hold-up Cap(s) 2x Nippon Chemi-Con (400V, 820uF, 105°C, CE)
Main Switchers 2x Infineon IPW60R080P7 (650V, 23A @ 100°C, Rds(on): 0.08Ohm)
APFC Controller Infineon ICE3PCS01G
Resonant Controller Champion CM6901X
Topology Primary side: Interleaved APFC, Half-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side –
+12V MOSFETs 10x Toshiba TPHR8504PL (40V, 150A @ 175°C, Rds(on): 0.85mOhm)
5V & 3.3V DC-DC Converters: 8x Infineon BSC0906NS (30V, 40A @ 100°C, Rds(on): 4.5mOhm)
PWM Controllers: ANPEC APW7159C
Filtering Capacitors Electrolytic: 3x Nippon Chemi-Con (105°C, W), 11x Nippon Chemi-Con (4-10,000h @ 105°C, KY)
Polymer: 23x FPCAP, 6x United Chemi-Con
Supervisor IC SITI PS232S (OCP, OVP, UVP, SCP, PG)
Micro Controller STC15W408AS
Fan Model Globe Fan RL4Z S1352512HH (135mm, 12V, 0.45A, Fluid Dynamic Bearing Fan)
5VSB Circuit –
Rectifier 1x PFC P10V45SP SBR (45V, 10A) & 2x Infineon BSC0906NS (30V, 40A @ 100°C, Rds(on): 4.5mOhm)
Standby PWM Controller Excelliance MOS EM8569D

High Power provides this platform, and although it doesn’t use cutting-edge technology, it has high build quality and uses quality components. We usually meet full-bridge topologies in high capacity PSUs, but the DA1650-G uses a half-bridge topology. They went with an interleaved PFC, at least. On the secondary side, the filtering capacitors are of good quality. We also spotted an MCU on the secondary side, for which we don’t have any information on what it exactly does.

The transient filter has all the necessary components to filter EMI effectively. There is also an MOV to protect against voltage surges. Inrush current protection is handled by an NTC thermistor, which is supported by a bypass relay.

The pair of bridge rectifiers can handle up to 100A of current! This is insanely high, even for a 1650W PSU.

The interleaved PFC offers higher efficiency levels and minimizes input/output current ripple. The bulk caps’ capacity is low, so the PSU cannot reach 17ms hold-up time, as the ATX spec requires. These caps cost a lot, so larger capacity ones would notably affect the product’s price.

Infineon provides the two main switching FETs, and they are powerful, with low Rds (on), which plays a huge role in energy losses. An LLC resonant converter is also utilized for higher efficiency. The resonant controller is a Champion CM6901X IC.

Ten Toshiba FETs regulate the 12V rail. All are installed on the solder side of the main PCB. The 12V rail also feeds two DC-DC converters, which generate the minor rails.

The modular board hosts many polymer caps, for lower ripple on all rails.

We don’t have any complaints to make when it comes to soldering quality. High Power did a good job in this section.

The 5VSB circuit uses an SBR and two FETs along with an Excelliance MOS PWM controller.




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