Der SilverStone SX1000 ist bisher der einzige seiner Art, daher nimmt er leicht die Krone in der Kategorie SFX-L mit hoher Kapazität ein und wird in unsere Artikel zu den besten Netzteilen. Wer ein superstarkes und dennoch kompaktes Netzteil benötigt, sollte sich unbedingt das SX1000 anschauen. Es kann problemlos ein starkes Gaming-System ohne Kompromisse unterstützen, und solange Sie die Last unter 700 W halten, wird Sie die Geräuschentwicklung nicht stören, es sei denn, Sie sind sehr empfindlich. Der einzige große Nachteil ist der hohe Preis, der auf dem US-Markt 300 Dollar übersteigt.
Silverstone hat kürzlich seine SX-Netzteillinie vorgestellt, die aus zwei SFX-L-Einheiten mit 750 W und 1000 W Kapazität besteht. Es ist beeindruckend zu sehen, wie ein Netzteil mit kompakten Abmessungen so viel Leistung liefert. Der SX1000 hat eine Leistungsdichte von 969 W pro Liter, die zu den höchsten gehört, die wir bisher gesehen haben. Damit er problemlos seine volle Leistung entfalten kann, hat Silverstone ihn mit zwei EPS-und sechs PCIe-Anschlüssen ausgestattet. Zum Glück sind alle Kabel vollständig modular, sodass Sie nur die benötigten verwenden können.
Produktfotos
Because of the high power density the temperatures at the internals will be high, so Silverstone decided to go with a double ball-bearing fan, which might be noisier than a similar spec FDB fan, but it is able to withstand much higher operating temperatures, without sweating. Besides capacitors, the cooling fan is among the most important parts inside a power supply, so you should pay great attention to its quality. If the fan fails early, the PSU will get high stress and it can even fail, if there is no over temperature protection.
Product Photos
Specifications
Manufacturer (OEM)
Enhance Electronics
Max. DC Output
1000W
Efficiency
Noise
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
120mm Double Ball Bearing Fan (B1201512HB)
Semi-Passive Operation
✓
Dimensions (W x H x D)
125 x 65 x 130mm
Weight
1.39 kg (3.06 lb)
Form Factor
SFX-L, EPS 2.92
Warranty
5 Years
* Not certified yet by Cybenetics. According to our measurements, the PSU falls into these efficiency and noise categories.
Power Specifications
Cables & Connectors
There are plenty of cables and connectors, including two EPS, six PCIe, and eight SATA connectors. There is even a Berg connector, which should be replaced though with a 4-pin Molex. Very few users need a Berg/FDD connector, and the ones who need it can get an adapter. So why waste a 4-pin Molex for a rarely used FDD connector.
Cable length is short since this is a small form factor PSU, destined for an equally small chassis. Nonetheless, the distance between the peripheral connectors is impressively long, showing that Silverstone took into account any possible cable management and root issues.
Cable Photos
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.
1x
2x Infineon IPW60R099C6 (600V, 24A @ 100°C, Rds(on): 0.099Ohm)
1x USCi UJ3D06520TS (650V, 20A @ 152°C)
2x Rubycon (400V, 470uF each or 940uF combined, 3,000h @ 85°C, USK)
4x Toshiba TK20A60W (600V, 20A, Rds(on): 0.155Ohm)
ATK AT6103ZSPC
Primary side: APFC, Full-Bridge & LLC converter
Secondary side: Synchronous Rectification & DC-DC converters
PWM Controller(s): uPI Semi uP3861P
Electrolytic: 2x Rubycon (3-6,000h @ 105°C, YXG), 2x Rubycon (6-10,000h @ 105°C, ZLH)
Polymer: 8x Unicon (2,000h @ 125°C, UPL), 13x (5,000h @ 105°C, UPT)
1x Silan Microelectronics SVF2N70MJ FET (700V, 1.3A @ 100°C, Rds(on): 6.5Ohm)
Overall Photos
The platform’s design is interesting and clean, despite the high power density. Enhance Electronics, the OEM, used quite large heat sinks on the primary side, with perforations on the APFC heat sink to allow airflow to the components installed below it. In addition, there are two main transformers, installed in parallel, to handle the unit’s increased power output.
It is impressive to see a full-bridge design in a small form factor power supply. An LLC resonant converter is also used for higher efficiency. We find synchronous rectification for the +12V rail on the secondary side, and the minor rails are generated through a pair of DC-DC converters.
Transient filter
The first part of the EMI filter is on the AC receptacle and consists of two Y caps. The second part, on the main PCB, includes two Y and four X caps and a pair of CM chokes. There is also an MOV for protection against voltage surges. The unit’s large inrush currents are suppressed by an NTC thermistor and bypass relay combo.
The PSU uses a single bridge rectifier which was impossible to identify without completely removing the heat sink that it was bolted on. So we left this fight for another time.
APFC converter
The APFC converter uses two Infineon FETs and a single boost diode (USCi UJ3D06520TS), among the strongest we have seen so far. The bulk caps are by Rubycon, and their combined capacity is high at 940uF. Finally, the APFC controller is an AT6103ZSPC IC.
Main FETs and primary transformer
The main FETs are arranged into a full-bridge topology. An LLC resonant converter is also used to boost efficiency. The LLC resonant controller is an AT6301ZTSF IC.
12V FETs and VRMs
Eight FETs regulate the +12V rail, and four FETs handle the minor rails. Infineon provides all, so they are of high quality. The common PWM controller for the DC-DC converters is a uPI Semi uP3861P IC.
Filtering caps
There aren’t many electrolytic caps on the secondary side, but the ones that Enhance used are of high quality. Lastly, the increased number of polymer caps is by Unicon.
Modular board front
Nine polymer caps are installed on the face of the modular board, forming a secondary ripple filtering layer.
The rectifier on the primary side of the 5VSB converter is an SVF2N70MJ FET, while the standby PWM controller is an ATK AT6002H IC.
The board that hosts the DC-DC converters for the minor rails also hosts the supervisor IC, a Weltrend WT7527RA.
Soldering quality
Soldering quality is good in general. There are some spots with increased solder, but they do not affect performance and reliability.
Cooling fan
The fan is by Globe Fan and uses a double ball-bearing to last for long, even under increased operating temperatures.
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