IRONScale Labs
IRON PSU DATABASE

ENERMAX Revolution III 850W

SERIES WATTAGE OPTIONS

850W, Gold, RSY üretimi, A0155 platform.

B+Model Tier850WGoldATX 3.xFully Modular
IRON assessment

Ripple and voltage regulation are good, but transient response is not. Overall construction is good. OCP is set too high on all rails, particularly 5V and 3.3V. The fan curve is aggressive.

01
BASIC TECHNICAL DATA

General information

IRON TierB+
Year2025
ModularFully Modular
EfficiencyGold
Manufacturer (OEM)RSY
PlatformA0155
Form FactorATX
ATX VersionATX 3.x
Dimensions140mm × 150mm × 86mm
+12 V70.8A / 849.6W
+5V & +3.3V20A / 20A / 100W birleşik
+5VSB3A / 15W
02
PHOTOS

Image gallery

03
INTERNAL COMPONENTS

Detailed component table

Internal Components — Reviewed Unit
General Data
Manufacturer (OEM)RSY
PlatformA0155
PCB Type—
AC Input & Transient / E.M.I. Filter
Operating Range—
Input Current—
Input Frequency—
X Capacitor—
Y Capacitor—
CM Choke—
DM Choke—
MOV—
TVS—
NTC—
Discharge IC—
Primary Side — Input Rectification + PFC
Bridge Rectifier—
Bridge Rectifier Cooling—
PFC Topology—
PFC MOSFET—
PFC Boost Diode—
Bulk Capacitor—
Hold-Up Time—
Power OK Time—
Inrush Current—
Primary Side — Inverter
Topology—
LLC—
Main Switching—
PFC Controller—
PWM Controller—
Secondary Side — Regulation & Rectification
Regulation Type—
12V Rectification Type—
12V Schottky Diode—
12V MOSFET—
5V / 3.3V MOSFET—
DC-DC Controller—
Secondary Side — Filter Capacitors
Electrolytic / Polymer Capacitors—
5VSB Rail
MOSFET—
Controller—
Rectification—
Filtering—
04
PROTECTIONS

Protection system

Supervisor IC Infineon INS429I-DCG
OVP✓Over Voltage
UVP✓Under Voltage
OCP✓Over Current
OPP✓Over Power
OTP✓Over Temperature
SCP✓Short Circuit
FFP✕Fan Failure
NLO✕No-load
SP✓Surge
IP✓Inrush
OCP ThresholdsCold
12 V—
5 V—
3.3 V—
5VSB—
OCP ThresholdsHot
12 V—
5 V—
3.3 V—
5VSB—
OPPCold / Hot
Cold—
Hot—
OTPTemperature
— °C
05
FAN MODEL, COOLING AND NOISE

Fan

Size120 mm
Fan ModelYate Loon D12SH-12
Fan RPM—
Rating12V / 0.30A
Bearing TypeSleeve Bearing
Semi-Passive Fan ModeNot present
0 dB / Fan Stop Modu—
Cybenetics LAMBDA — average PSU noise rating
What do the ratings mean?

The Cybenetics LAMBDA class reflects the PSU's average measured noise level during testing. Lower values mean a quieter power supply.

A++< 15 dB(A)
A+15 – <20 dB(A)
A20 – <25 dB(A)
A−25 – <30 dB(A)
Standard++30 – <35 dB(A)
Standard+35 – <40 dB(A)
Standard40 – <45 dB(A)
115V——
230V——
06
CABLES AND CONNECTORS

Cable design

X Non-modular ▣ Modular Lengths and connector spacing
CableCountLengths and connector spacingAWGInline Capacitor
24-pin Motherboard×1
X====60cm====[24 pin]
18AWGNot present
EPS (CPU)×1
X====60cm====[4+4]
18AWGNot present
PCIe (GPU)×2
X====60cm====[6+2]
            └==15cm==[6+2]
18AWGNot present
12VHPWR / 12V-2x6Not present
—
——
SATA×5
X====40cm====[SATA]
            └==15cm==[SATA]
            └==15cm==[SATA]
            └==15cm==[Molex]
20AWGNot present
Molex×2
X====40cm====[SATA]
            └==15cm==[SATA]
            └==15cm==[Molex]
            └==15cm==[FDD]
20AWGNot present
Cable TypeFlat Cable
07
PERFORMANCE DATA

Test results

Electrical Performance Summary
RippleLoad: —
12V Rail13.3 mV
0 mVVery good70+ mV
5V Rail14.4 mV
0 mVVery good50+ mV
3.3V Rail19.4 mV
0 mVVery good50+ mV
5VSB Rail—
0 mVNo data50+ mV
Voltage RegulationLoad: —
12V Rail-2.64%
0%Average5%+
5V Rail-3.80%
0%Average5%+
3.3V Rail-4.28%
0%Weak5%+
5VSB Rail—
0%No data5%+
Cross Load2 Load Scenarios
12V Rail—
Minor RailsNONE5V + 3.3V
Test12 V5 V3.3 V5VSB
Voltage Regulation
-2.64%
Average
0%5%+
-2.84%
Average
0%5%+
-3.86%
Average
0%5%+
—
No data
0%5%+
Ripple
—
No data
0 mV70+ mV
—
No data
0 mV50+ mV
—
No data
0 mV50+ mV
—
No data
0 mV50+ mV
12V RailNONE
Minor Rails—5V + 3.3V
Test12 V5 V3.3 V5VSB
Voltage Regulation
-0.17%
Very good
0%5%+
-3.70%
Average
0%5%+
-2.07%
Average
0%5%+
—
No data
0%5%+
Ripple
—
No data
0 mV70+ mV
—
No data
0 mV50+ mV
—
No data
0 mV50+ mV
—
No data
0 mV50+ mV
Transient ResponseStandard + ATX 3.1
Standard Test
STANDARD TEST LOAD — W
12V Rail— V
11.20VNo data12.00V
5V Rail— V
4.75VNo data5.10V
3.3V Rail— V
3.14VNo data3.36V
5VSB Rail— V
4.75VNo data5.10V
ATX 3.1
ATX 3.1 TEST LOAD — W
12V Rail— V
11.20VNo data12.00V
5V Rail— V
4.75VNo data5.10V
3.3V Rail— V
3.14VNo data3.36V
5VSB Rail— V
4.75VNo data5.10V
08
CONCLUSION

IRON assessment

IRON TIERC-

Things to Consider

  • The unit topology can change between revisions.
  • Overall component quality is low.
  • Electrical performance is mediocre; regulation is below average.
  • The internals heat up noticeably at full load.
  • PCB and fan quality are weak.

Positive points

  • Active PFC and DC-DC are present.
  • The basic protection set is broad.
  • 650W nominal capacity.
09
SOURCES

Sources