SilverStone DA750R-GMA Series Decathlon Gold User Manual
- June 17, 2024
- SilverStone
Table of Contents
SilverStone DA750R-GMA Series Decathlon Gold
Product Specifications
- Brand: SilverStone
- Series: Decathlon Series
- Model: DA750R Gold / DA850R Gold
- Power Output: 750W/850W
- Efficiency Certification: 80 PLUS Gold
- Modularity: Fully Modular
- Connectors: ATX 3.0 & PCIe 5.0
- Features: Silent running 120mm fan, advanced semi-fanless operation, compact design with 140mm depth
Product Usage Instructions
AC Input Requirements
The input voltage, current, and frequency requirements for continuous operation are as follows:
| Parameter | Voltage (Vin) | Frequency |
|---|---|---|
| Min. | 90-264 VACrms | 47-63 Hz |
| Nom. | 100-240 VACrms | 50-60 Hz |
| Max. | 264 VACrms | 63 Hz |
DC Output
DC Voltage Regulation
| Parameter | Range (Volts) |
|---|---|
| +3.3V | +3.20 to +3.40 |
| +5V | +4.85 to +5.15 |
| +12V | +11.20 to +12.60 |
| -12V | -11.04 to -12.96 |
| +5VSB | +4.75 to +5.25 |
SPECIFICATION
- SST-DA750R-GMA/ SST-DA750R-GMA-WWW
- SST-DA850R-GMA/ SST-DA850R-GMA-WWW
Active PFC SWITCHING POWER SUPPLY 80 PLUS Gold certified
- 750W
- 850W
This specification describes the requirements of 750w; 850w switching power supply with a stretch form factor and ATX12V, and EPS12V. +5V standby voltage, remote on/off control, full-range line input capability and forced air cooling characteristics.
AC INPUT
AC input requirements
The input voltage, current, and frequency requirements for continuous
operation are stated below.
| Parameter | Min. | Nom. | Max. | Unit |
|---|---|---|---|---|
| Vin | 90 | 100——-240 | 264 | VACrms |
| Frequency | 47 | 50——-60 | 63 | Hz |
| 750W ( Iin ) | 9 ——- 4.5 | Arms | ||
| 850W ( Iin ) | 10 ——- 5 | Arms |
Inrush current regulation
- 50A @ 115Vrms
- 100 A @ 230Vrms (at 25°C ambient cold start).
DC OUTPUT
DC voltage regulation
| Parameter | Range | Min | Nom. | Max | Unit |
|---|---|---|---|---|---|
| +3.3V | +3/-3％ | +3.20 | +3.3 | +3.40 | Volts |
| +5V | +3/-3％ | +4.85 | +5 | +5.15 | Volts |
| +12V | +5/-7％ | +11.20 | +12 | +12.60 | Volts |
| -12V | +8/-8％ | -11.04 | -12 | -12.96 | Volts |
| +5VSB | +5/-5％ | +4.75 | +5 | +5.25 | Volts |
Load ranges
( 750 Watts )
| Parameter | Min | Nom. | Max | Unit |
|---|---|---|---|---|
| +3.3V | 0 | – | 20 | Amps |
| +5V | 0 | – | 20 | Amps |
| +12V | 0 | – | 62.5 | Amps |
| -12V | 0 | – | 0.3 | Amps |
| +5VSB | 0 | – | 3 | Amps |
- Maximum continuous total DC output power should not exceed 750W.
- Maximum continuous combined load on +3.3 VDC and +5 VDC outputs shall not exceed 100W.
- The maximum combined current for the 12 V outputs shall be 62.5A.
850 Watts
| Parameter | Min | Nom. | Max | Unit |
|---|---|---|---|---|
| +3.3V | 0 | – | 20 | Amps |
| +5V | 0 | – | 20 | Amps |
| +12V | 0 | – | 70.8 | Amps |
| -12V | 0 | – | 0.3 | Amps |
| +5VSB | 0 | – | 3 | Amps |
- Maximum continuous total DC output power should not exceed 850W.
- Maximum continuous combined load on +3.3 VDC and +5 VDC outputs shall not exceed 100W.
- The maximum combined current for the 12 V outputs shall be 70.8A.
Output Ripple
Ripple regulation
| Parameter | Ripple & Noise | Unit |
|---|---|---|
| +3.3V | 40 | mVp-p |
| +5V | 40 | mVp-p |
| +12V | 80 | mVp-p |
| -12V | 80 | mVp-p |
| +5VSB | 40 | mVp-p |
Definition
The ripple voltage of the outputs shall be measured at the pins of the output connector when terminated in the load impedance specified in Figure 1. Ripple and noise are measured at the connectors with a 0.1uF ceramic capacitor and a 10uF electrolytic capacitor to simulate system loading. Ripple shall be measured under any condition of line voltage, output load, line frequency, or operation temperature.
Ripple voltage test circuit
Overshoot
Any overshoot at turn on or turn off shall be less 10% of the normal
voltage value.
Efficiency.
Power supply efficiency typical 87%/20% Loading, 90%/50% Loading, 87%/100%
Loading, at normal AC 115V voltage.
- Recommended System DC and AC Power Consumption (+5VSB)
+5VSB| 45mA| 90m A| 1A| Max Load
---|---|---|---|---
Efficiency| 45%| 55%| 75%| 75% - Low Load Efficiency Requirements depend on Overall PSU Size. Comment if these values can be increased to lower overall computer power consumptions at these low loads.
DC Output Rating (W)| 10W Load| 2% Load
---|---|---
<400W| >75%|
400W – 500W| >70%|500W| –| >70%
Remote ON/OFF control
- When the logic level “PS-ON” is low, the DC outputs are to be enabled.
- When the logic level is high or open collector, the DC outputs are to be disabled.
Dynamic loading
- The PSU is subjected to a load change as shown in the table below at a rate of 1A/use (unless otherwise specified).
- The frequency of change is set to give the best readability of the deviation and setting time.
- All other output loads and the AC line voltage are chosen to obtain the worst-case condition
Output
| Load
Caps [μF] (option)
|
Current slew rate
|
Step Load Size ( Intel )
| Maximum Step Size
(A)
---|---|---|---|---
3.3V| 3300| 1A/μs| 30% of Max Load| –
5V| 3300| 1A/μs| 30% of Max Load| –
12V
|
6600
|
5A/us
| Steps from 100%-
200%
30% -100%
|
–
-12V| 300| 01A/μs| –| 0.1
+5VSB| 3300| 0.1A/μs| –| 0.5
Duty Cycle Definition
PROTECTION
Over current protection
The power supply shall have a current limit to prevent the +3.3V,+5Vand
+12V outputs from exceeding the values shown in the following Table. If the
current limits are exceeded the power supply shall shut down and latch off.
| Voltage | Over Current Limit (Iout limit) % |
|---|---|
| +12V | 120% minimum; 160% maximum |
| +5V | 120% minimum; 160% maximum |
| +3.3V | 120% minimum; 160% maximum |
| +5VSB | 120% minimum; No damaged |
Under voltage protection
In an under-voltage fault occurs, the supply will latch all DC outputs into a shutdown state when +12V,+5V & +3.3V outputs are under 60% of their maximum value.
Over-voltage protection
| Output | Minimum | Nominal | Maximum | Unit |
|---|---|---|---|---|
| +12 VDC | 13.4 | 15.0 | 15.6 | Volts |
| +5 VDC | 5.74 | 6.3 | 7.0 | Volts |
| +3.3 VDC | 3.76 | 4.2 | 4.3 | Volts |
Short circuit
An output short circuit is defined as any output impedance of less than 0.1 ohms. The power supply shall shut down and latch off for shorting the +3.3 VDC,+5 VDC, or +12 VDC rails to return or any other rail. Shorts between main output rails and +5VSB shall not cause any damage to the power supply. The power supply shall either shut down and latch off or fold back for shorting the negative rails.+5VSB must be capable of being shorted indefinitely, but when the short is removed, the power supply shall recover automatically or by cycling PS_ON#. The power supply shall be capable of withstanding a continuous short-circuit to the output without damage or overstress to the unit
Over-power protection
- The power supply will be shut down and latch off when the output power is > 120%~235%.
- Current protection must be designed to limit the current to operate within safe operating conditions.
- Over-power protection schemes, where only the voltage output that experiences the over-power event is shut off, may be adequate to maintain the safe operation of the power supply and the system; however, damage to the motherboard or other system components may occur. The recommended over-power protection scheme is for the power supply to latch into the shutdown state. PSU connectors, cables and all other components should not be melted or damaged prior reaching to the OPP trigger
Over Temperature Protection (OTP)
The power supply shall include an over-temperature protection sensor, which can trip and shut down the power supply at a preset temperature point. Such an overheated condition is typically the result of internal current overloading or a cooling fan failure. If the protection circuit is non-latching, then it should have hysteresis built in to avoid intermittent tripping. PSU connectors, cables, and all other components should not be melted or damaged prior reaching to the OCP trigger. Test condition AC 115/230V.
TIMING
Signal timing drawing
Figure 2. is a reference for signal timing for main power connector signals
and rails.
Hold up time
When the power loses its input power, it shall maintain 16ms in regulation
limit at normal input voltage. Tested at 100% of maximum load and over
115V/60Hz or 230V/50Hz AC input.
ENVIRONMENT
Operation
| Temperature | 0 to 50℃ ( derating from 100% to 80% from 40℃ to 50 ℃ ) |
|---|---|
| Relative Humidity | 10 to 90%, non-condensing |
Shipping and Storage
| Temperature | -20 TO 70oC |
|---|---|
| Relative Humidity | 5 to 95%, non-condensing |
Altitude
Operating
|
10,000FT max
---|---
Storage
|
50,000FT max
Dimension
- 150x86x140mm
POWER SUPPLY CONNECTOR OVERUSE DEFINITION
Power supply connector overuse definition
-
A single PCIe 8-pin cable and connector’s maximum current rating is 12.5A, which is 150W (+12V x 12.5A). So SilverStone’s warranty will not cover damages or malfunction resulting from the use of a graphics card or expansion card with a single PCIe 8pin connector that exceeds the standard 225W total power draw (150W from PCIe 8pin connector + 75W from PCIe motherboard slot). Similarly, a graphics card or expansion card with dual PCIe 8pin connectors that exceed 375W total power draw (300W from two PCIe 8-pin connectors + 75W from PCIe motherboard slot) will also not be covered under warranty.
-
Peripheral (Molex) or SATA connector’s maximum current rating is 5A, which is 60W (+12V x 5A) or 25W (+5V x 5A). Please ensure connected devices are operating under these limits. SilverStone’s warranty will not cover damages or malfunctions resulting from usages exceeding these connectors and their associated cables.
24pin motherboard connector’s maximum current rating for its dual +12V metal pins are 5A each, which totals 120W (+12V x 5A x 2). -
Please ensure that +12V drawing devices connected to the motherboard are operating under these limits. SilverStone’s warranty will not cover damages or malfunction resulting from usage exceeding these connectors and their associated cables
FCC
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- this device may not cause harmful interference, and
- this device must accept any interference received, including interference that may cause undesired operation
Model (on safety):SST-AX0750MCGD-C
Model (on safety):SST-AX0850MCGD-D
The power supply is only suitable for Information Technology & Audio/Video
equipment
Please refer to SilverStone website for latest specifications updates
SilverStone Technology Co., Ltd.
www.silverstonetek.com
support@silverstonetek.com
NO. G11249060
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