Corsair CP-9020133-UK TX550M 550 W 80+ Gold Power Supply Unit, Black

Product Information

Corsair have partnered up with Great Wall for this unit. It adopts a Resonant LLC topology with DC to DC conversion. It is very impressive to see Corsair using high grade Japanese 105C Rubycon capacitors in the primary stage – two rated 450V 270uF for a total of 520uF output capacity. There are several rows of heatsinks inside the unit to aid with cooling from the fan above. Soldering on the PCB is decent across the board.

The rear of the box showcases some of the main selling points, if you were browsing in a retail store. Does anyone still walk into a retail store to buy components? let us know in the comments below… Just as the TX750M did, the Corsair TX550M fills our chart for features. This is a great list of features to find in such a low wattage power supply and we will find a few things that you wouldn't expect. Most notable are the 50C power rating and over temperature protection. These features are typically reserved for units of higher output and usually incur a little bit more of an impact on the wallet too. OVP (Over Voltage) | UVP (Under Voltage) | SCP (Short Circuit) | OTP (Over Temp) | OPP (Over Power)Semi-Modular Cabling: Lets you connect the cables you need for a cleaner build with easy cable management, while dual EPS12V connectors ensure wide compatibility with modern graphics cards and motherboards. Correctly testing power supplies is a complex procedure and KitGuru have configured a test bench which can deliver up to a 2,000 watt DC load. Due to public requests we changed our temperature settings increasing ambient temperatures by 10c (to 35c) in our environment to greater reflect warmer internal chassis conditions.

Semi-Modular: Allows user to only use the cables they need for a cleaner looking build with better airflow CPU: 5800x | GPU: RX6800 | RAM: 16GB 3200mhz CL16 | Monitor: Samsung 4K 65 inch TV | Monitor: Pixio PX276 27inch 144Hz 1440p | Audio: Sound Blaster z + 5.1 home theater Psu tier List. Tier A for Rtx 3000, Vega and RX 6000. Tier B For anything else. Tier C cheap/IGPU. Tier D and E avoid. It truly should be one cable per 8 pin connection. If you look into the specs and details daisy chain cables are garbage and should not even exist. The TX550M passed our demanding cross load test, and ripple suppression is also well within safety parameters with +3.3V and +5V peaking at 15mV. The +12V rail peaked at 25mV when under full load. The units Load regulation proved solid as well throughout all our tests.Safety: Over-voltage protection, under-voltage protection, short circuit protection, over power protection, and over temperature protection The 550W unit we are testing today ships with 6+2 pin PCIe connector to power a single graphics card. All of the lengths are perfectly suitable for a unit of this capacity. A 120mm fan is seen behind the vents on the top of the power supply. We will take a closer look at the fan when we open the unit later in the review.

Resonant LLC Topology with DC-to-DC Conversion: Provides clean, consistent power, reduces coil whine for quieter operation, and enables use of more energy efficient sleep states. For a 550W power supply, Corsair manages to get in a pretty decent list of cables and connectors to make sure that you are able to make full use of the 550 watts that are available. The obligatory 20+4 and ATX 4+4 pin connectors are present as you would expect. Both PCI-E cables features 6+2 pin connectors, are modular, and are of ample length. Technically, this unit is a no frills semi modular design which dealt with our suite of tests without any failures. It did not exhibit any concerning weakness under real world usage situations either, it was able to deliver over 600 watts of power before safety measures stepped in for a safe shutdown. Corsair's TX550M performs almost identical to that of the TX750M that we took a look at last month, which is quite expected considering the unit is from the same line of power supplies and just outputting a few hundred less watts. Voltage regulation was once again within 2% across the board with the 3.3V rail being extremely stable.

Load regulation is good across the output range. The power supply delivered 642 watts of power before it would shut down, safely. Corsair recently launched a new range of semi modular Gold rated power supplies in 550W, 650W and 750W capacities. These competitively priced units incorporate high grade Japanese capacitors and a compact size of 140mm to fit into a variety of chassis on the market. Corsair are offering a full 7 year warranty. This is one of the quieter power supplies we have tested this year, and even at a constant 450 watts of power delivery when gaming, the fan did not make itself heard over a few system fans. If you need a constant 500 watt+ power delivery you really should be looking at a higher capacity power supply anyway. One side of the power supply is home to the modular connectors across two small rows at the rear. The other side of the unit is home to the power connector, power switch and vented honeycomb panel. Next we want to try Cross Loading. This basically means loads which are not balanced. If a PC for instance needs 500W on the +12V outputs but something like 30W via the combined 3.3V and +5V outputs then the voltage regulation can fluctuate badly. Cross Load Testing

Rounding out our results are those for the efficiency of the TX550M. Being an 80Plus Bronze rated power supply, the unit must be 82%/85%/82% efficient at 20%/50%/100% loads respectively. While our first test is well above the 20% mark, the test does show that the unit is well above the 82% mark already. The unit also achieves over 85% efficiency during Test 2 and manages to hang in there during the full load test with 83.1% efficiency. Its probably fine to use a single cable but if you have two cables in the box and have room in the case for both cables i would both just in case Today to test the Power Supply we have taken it into our acoustics room environment and have set our SkyTronic DSL 2 Digital Sound Level Meter (6-130dBa) one meter away from the unit. We have no other fans running so we can effectively measure just the noise from the unit itself. That said, measuring lower than 28dBa proves very difficult, unless in strict laboratory conditions.Popular Now: Nintendo 64 classic Perfect Dark ported to PC, playable in 4K 60 FPS with keyboard and mouse Connect only the cables you need for a cleaner build with easy cable management and dual EPS12V connections for wide compatibility with modern graphics cards and motherboards. Efficiency is excellent, peaking at around 92% at around 50% load. At full load, this drops to around 89.35%. Solid results. The TX550M delivers close to 46A on the +12V rail which is adequate for a graphics card that would be installed in a system adopting a power supply of this capacity.