Corsair 750W Power Supply Review

Power supply model: Corsair TX750

Brand: Corsair

Rated power: 750W

Power supply appearance

Appearance components:

1: The main body of the power supply.

2: A power supply fan.

3: 4 6-pin cables. (two in a group)

4: One AC power switch.

5: Length: 15CM Width: 14CM Height: 8.6CM

6: Net weight about 1.9KG (3.8 catties)

The overall appearance of the Corsair 750W power supply is matte black, and there are also shallow horizontal embossed stripes on the side of the power supply, highlighting the Corsair and high efficiency characteristics.

Power brand

The power nameplate is attached to the back of the power supply shell, and the content is clear and unambiguous. The power supply is rated for 750W, single-channel 12V output, maximum current limit of 62A, and the 12V output ratio accounts for 99% of the total power, which has a very good output capacity. The parameter label is very standardized.

Power tail

The air outlet mesh on the back uses hexagonal openings, which can take into account both low EMI radiation and low wind resistance: and is equipped with an AC main switch. Its function is to directly turn off and on the power supply, and it can also easily achieve the effect of zero standby power consumption. This power supply also has such a design.

Power cord

The power supply is equipped with a 220V input power cord. In order to reduce the operating loss of the mining machine, all pure copper national standard 3X1.0mm² wires are used. The wire length is about 1.8 meters, the maximum withstand voltage is 300/500V, and the national standard 10A plug is suitable for all domestic mining farms.

Power supply fan

The 16cm short windmill power supply uses a 14CM fan, which almost fills the entire upper cover of the power supply. The fan brand is YateLoon, D14BH-12, with a rated current of 0.7A. It can definitely provide enough air volume at full speed, but you can rest assured that the speed of this fan has always been kept at a relatively silent value during the test: the front is equipped with a round detachable metal grille, which can be removed by unscrewing 4 screws, making it convenient to clean after long-term use.

Fan speed measurement: The relationship between fan speed and output power was examined within the test power range. 220VAC input, open test, ambient temperature was 29 degrees. Although it is a bronze power supply, the fan speed range is set relatively late. Before 70% load, the power supply is very quiet.

Internal structure of power supply

In terms of structure, the Corsair 750W power supply uses LLC half-bridge resonance controlled by CM6901X, active PFC controlled by CM6502UHHX, 12V uses synchronous rectification to output 3.3V and 5V uses DC-DC output. Structurally speaking, the power supply using LLC half-bridge resonance structure is very efficient.

EMI Filter Circuit

The AC power socket fixed on the case, together with two Y capacitors, an X capacitor and its bleeder resistor, and the main power switch. The X capacitor pins and the live and neutral plugs and other exposed metal parts are covered with heat shrink tubing, and the safety design is more thoughtful:

Power cable

In terms of wires: All wires of the power supply are wrapped with snake skin nets to prevent damage to the power cord. The power supply is equipped with 4 6-pin wires, 50 cm in length (two 6-pin wires in a group), all of which are high-specification 18-gauge electronic wires, which increase transmission efficiency and reduce losses. It is also equipped with an AC main switch, which is specially equipped for mining, eliminating the trouble of adding a switch and short wires to the PC power supply, effectively solving unnecessary troubles for miners.

To summarize: Remember: This power supply can only work between 100V and 240V.

There are many types of server power supplies, and the conversion rates are also different. If you need to use a server power supply, the one in this article has a high conversion rate and is relatively cheap. For large-area deployments, it can save considerable power cost investment. However, if you encounter some server power supplies with low conversion rates, you must consider the electricity cost, safety and stability.

However, it should be noted that different ambient temperatures, different temperatures of the mining machine, and different speeds of the mining machine fans will all affect the total power consumption, so the above figures are for reference only.