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.

Page 3 of 12:

Teardown & Component Analysis

Before proceeding with this page we strongly encourage you to 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.

Swipe to scroll horizontally

General Data
Manufacturer (OEM)	Solytech
Primary Side
Transient Filter	4x Y caps, 2x X caps, 2x CM chokes, 1x MOV
Inrush Protection	2x NTC thermistors
Bridge Rectifier(s)	2x GBU1506 (600V, 15A @ 100°C)
APFC MOSFETs	3x Wuxi Tongfang Microelectronics TPA60R150C (600V, 20A @ 25°C, 0.15Ω)
APFC Boost Diode	1x CREE C3D08060A (600V, 8A @ 152°C)
Hold-up Cap(s)	2x Rubycon (400V, 330uF, 2000h @ 105°C, MXH)
Main Switchers	2x Infineon IPA60R125P6 (650V, 1A @ 100°C, 0.125Ω)
APFC Controller	Champion CM6502S
LLC Resonant Controller	Monolithic Power Systems HR1001B
Topology	Primary side: Half-bridge & LLC resonant controller Secondary side: Synchronous rectification & DC-DC converters
Secondary Side
+12V MOSFETs	4x Toshiba TPHR85 04PL (SOP Advance Series, 40V, 150A @ 25°C, 0.85mΩ )
Synchronous Rectifier	Monolithic Power Systems MP6923
5V & 3.3V	DC-DC Converters: 6x Ubiq QM3004D (30V, 40A @ 100°C, 8.5mΩ) PWM Controller: 1x Anpec APW7159C
Filtering Capacitors	Electrolytics: 14x Su'scon (Chinese, 105°C), 5x Elite (Chinese, 105°C) Polymers: 8x
Supervisor IC	Weltrend WT7527V (OCP, OVP, UVP, SCP, PG) & UTC LM358G
Fan Model	AV-F14025HS (140mm, 12V, 0.50A, Sleeve Bearing)
5VSB Circuit
Rectifier	1x PFR10L45CT SBR (45V, 10A)
Standby PWM Controller	OB5224AP

The AG-850M employs a modern platform based on an LLC resonant converter and specially-designed main transformer. The bulk caps' quality is pretty good, while the opposite is true for the secondary side. Solytech uses cheap Chinese caps not known for their reliability. In our opinion, no such capacitors belong in an 850W PSU selling for more than $100. This makes it even stranger that the AG-850M is covered by a 10-year warranty. We would like to see a higher quality fan as well.

Image 1 of 41