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

Product Information

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. i9 9900K @ 5.0 GHz, NH D15, 32 GB DDR4 3200 GSKILL Trident Z RGB, AORUS Z390 MASTER, EVGA RTX 3080 FTW3 Ultra, Samsung 970 EVO Plus 500GB, Samsung 860 EVO 1TB, Samsung 860 EVO 500GB, ASUS ROG Swift PG279Q 27", Steel Series APEX PRO, Logitech Gaming Pro Mouse, CM Master Case 5, Corsair AXI 1600W Titanium. I recommend everyone out there who's looking for a new PSU to close your eyes and buy it.. You'll never regret this.. You're getting yourself a quality product from a trusted Brand and You're also future proofing yourself to an extent..

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. 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. Its very rare but not unheard of for PSU cables to melt when using only a single cable on extremely high powered cards have seen it happen with Seasonic PSU´s before but as i said its very rareCorrectly 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.

Obviously when measuring AC noise and ripple on the DC outputs the cleaner (less recorded) means we have a better end result. We measured this AC signal amplitude to see how closely the unit complied with the ATX standard. AC Ripple (mV p-p) 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. 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.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. 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… Thank you all for the input. Sounds like it's probably advisable to add the second cable and sacrifice some cable management cleanliness. 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. 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.