Tom's Hardware Verdict
The SilverStone DA1650-G is a high performance and powerful PSU. Its strongest asset is the notably lower price, compared to the high-end competition in this category.
Pros
- +
Fair price
- +
Tolerant to high temperatures
- +
High build quality
- +
High performance
- +
Tight load regulation at 12V
- +
Satisfactory transient response at 12V
- +
Efficient
- +
High Power Factor readings
- +
2x EPS and 12x PCIe connectors
- +
Heavy duty AC receptacle and power cord (C20/C19)
- +
Fully modular
Cons
- -
Not accurate power ok signal
- -
Lower than 17ms hold-up time
- -
High inrush currents
- -
Can get noisy
Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
The SilverStone DA1650-G offers tremendous power levels at a good price. For users who don't have the money to get a Corsair AX1600i, an EVGA SuperNOVA 1600 T2, or a be quiet! Dark Power Pro 12 1500W, SilverStone's offering looks like a good bargain. Besides high wattage, its build quality is good, and the overall performance is at strong enough levels, allowing for good performance per dollar. The SilverStone DA1650-G is one of the best power supplies you can buy in its class.
Strong PSUs are coming to the front scene again, thanks to Nvidia's new Ampere GPUs, which are quite power-hungry. If you have the money to buy a pair of RTX 3090s, which need an equally strong CPU to be fully utilized, you will soon realize that even a 1000W PSU will struggle under full load. This is where some monstrous capacity PSUs like the new SilverStone DA1650-G come to play, offering enough power to support several power-hungry GPUs.
The SilverStone DA1650-G is 80 PLUS Gold certified, while in the Cybenetics scale, it achieves ETA-A (88-91% average efficiency) and LAMBDA-Standard+ (35- 40 dBA average noise output). Given the LAMBDA rating, this is not a quiet PSU, but you cannot expect silence when a power supply outputs more than 1500W of power.
With a quick look at the specifications, you can easily spot a difference with other high-end offerings from Corsair, EVGA, Seasonic, and others. The provided warranty is restricted to three years, which is not so small period given the huge power levels that this PSU can deliver. It is just the other brands that went on a "warranty" competition, and in the end, they had to provide ridiculously long periods, which are unrealistic when it comes to power supplies. One of the reasons this product is offered at a lower price than other units in this category is the provided warranty period. It totally makes sense, to cover the cost of possible problems due to prolonged warranty periods, you have to apply a different pricing policy.
Specifications
|
Manufacturer (OEM) |
High Power |
|
Max. DC Output |
1650W |
|
Efficiency |
80 PLUS Gold, ETA-A (88-91%) |
|
Noise |
LAMBDA-S+ (35-40 dB[A]) |
|
Modular |
✓ (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 |
✓ |
|
Cooling |
135mm Fluid Dynamic Bearing Fan (RL4Z S1352512HH) |
|
Semi-Passive Operation |
✓ |
|
Dimensions (W x H x D) |
150 x 88 x 180mm |
|
Weight |
2.11 kg (4.65 lb) |
|
Form Factor |
ATX12V v2.4, EPS 2.92 |
|
Warranty |
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.
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.
All filtering caps are by Japanese manufacturers and of good quality. Besides electrolytics, a large number of polymer caps is also used.
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.
The supervisor IC is a SITI PS232S. We also found an MCU on the secondary side, for which we don't have a clue what it is used for.
The cooling fan is by Globe Fan, and according to the official specs, it uses a fluid dynamic bearing.
MORE: Best Power Supplies
MORE: How We Test Power Supplies
MORE: All Power Supply Content
Alarming amount of Texas Instrument chips found in Russian-based weapons in Ukraine — Russian military using third parties to purchase U.S-made chips
Aoostar AG02 eGPU dock with OCuLink support and 500W PSU announced for $219
China levels anti-trust charges against Nvidia – country accuses chipmaker of violating anti-monopoly regulations, examining the $7 billion Mellanox acquisition
