IRONScale Labs
IRON PSU DATABASE

Green GP-A-ECO(ECO) 550W

SERIES WATTAGE OPTIONS

550W, 80 Plus, Jiumeng üretimi, JM-660 platform.

E+Model Tier550W80 PlusATX 2.xNon-Modular
IRON assessment

Voltage regulation is poor. The internals and ripple performance are acceptable. It should comfortably handle entry-level systems.

01
BASIC TECHNICAL DATA

General information

IRON TierE+
Year2021
ModularNon-Modular
Efficiency80 Plus
Manufacturer (OEM)Jiumeng
PlatformJM-660
Form FactorATX
ATX VersionATX 2.x
Dimensions140mm × 150mm × 86mm
+12 V41A / 492W
+5V & +3.3V20A / 24A / 120W birleşik
+5VSB2.5A / 12.5W
02
PHOTOS

Image gallery

03
INTERNAL COMPONENTS

Detailed component table

Internal Components — Reviewed Unit
General Data
Manufacturer (OEM)Jiumeng
PlatformJM-660
PCB Type—
AC Input & Transient / E.M.I. Filter
Operating RangeFull Range
Input Current5A - 10A
Input Frequency50-60Hz
X Capacitor×2
Y Capacitor×4
CM Choke×2
DM Choke×0
MOVPresent
TVS—
NTCPresent
Discharge ICPresent
Primary Side — Input Rectification + PFC
Bridge Rectifier×1
Bridge Rectifier CoolingHeatsinked
PFC TopologyActive PFC
PFC MOSFETGreat Power GP18S50G — 18A, Rds(on) 0.19Ω — ×2
PFC Boost DiodeFFSF0665A — 600V, 6A — ×1
Bulk CapacitorChengX AP — 330µF, 400V, 85°C, 2000h — ×1
Hold-Up Time—
Power OK Time—
Inrush Current—
Primary Side — Inverter
TopologyDouble Forward
LLCNot present
Main SwitchingPIP Semiconductor PTA20N50A — 20A, Rds(on) 0.24Ω — ×1
PFC ControllerCM6800TX
PWM ControllerChampion CM6800TX
Secondary Side — Regulation & Rectification
Regulation TypeDC-DC
12V Rectification TypePassive Rectification
12V Schottky DiodePFR20L60CT — 60V, 20A — ×4
12V MOSFETNot present
5V / 3.3V MOSFETQM3054M6 — 30V, 97A, Rds(on) ≈ 4.8mΩ — ×4
DC-DC ControlleruPI-semi uP3861P
Secondary Side — Filter Capacitors
Electrolytic / Polymer Capacitors 12V Rail: CapXon / ChengX 5V Rail: Elite Solid Cap — 470µF / 16V — ×1 3.3V Rail: Elite Solid Cap — 470µF / 16V — ×1
5VSB Rail
MOSFET—
ControllerPower Integrations TNY287PG
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