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- Date:
- Tuesday , October 16, 2007
- Author:
- Paul Johnson
- Editor:
- Kyle Bennett
- Google +1
Corsair TX750W Power Supply
Corsair has enjoyed a reputation for over-building their computer power supplies while offering them at a price that affords the enthusiast a good value. Is their new flagship 750w unit of the same quality? An 850w PSU in sheep's clothing?
Build Quality
As we already know the Corsair TX750W features a single 140mm fan design that is a break from the rest of Corsair's offerings. 140mm fans are in the same vein as 120mm fans in that they can provide for quiet cooling environments due to the ability to move a larger volume of air at slower speeds than a smaller diameter fan. The 140mm fan is the largest diameter fan we are likely to see in ATX power supplies given the physical constraints of the form factor. While great for quiet computing environments the key criteria in our evaluation is whether or not the cooling solution is sufficient, not necessary it’s sound level or form factor.
External Build Quality
The Corsair TX750W's external build quality is typical of what we have come to expect from Corsair branded units. The power supply comes trimmed out in basic black with orange highlighting using the same type of matte finish that we have come to love as it resists scratching even under the roughest of handling. The unit is dominated by the 140mm fan that is almost the exact same size as the unit itself while the back of the unit is rather barren except for the orange Corsair TX750W logo as the unit is an APFC design.
The Corsair TX750W comes in at a trim 6 1/4 inches long with the fixed cables reaching out to ~16 inches at the first or only connector for the Molex and SATA connectors while the ATX, EPS, and PCI-Express connectors reach out to ~21 inches. The cables are all sleeved completely but the unit has a partially unfinished look as the fixed cables sleeving doesn't go all the way into the unit and the individual wires for the cables are exposed as we have seen previously from CWT built units.
Internal Build Quality
Once we open the Corsair TX750W we are greeted by a rather familiar looking CWT PSH model power supply down to the CWT transformer sitting right in the middle of the unit. This particular unit is cooled by a Yate Loon fan rated at 0.70A at 12v and it is matched to heatsinks that look like they were cut into "fingers" then bent 90 degrees to maximize their surface area in the airstream generated by the massive 140mm fan sitting overhead. We also see that the fan has an acetate shield used for directing airflow in a specific manner in the unit.
On the primary side we see that the unit has a single Matsushita capacitor rated 390uF 400v, as the unit features APFC, that for some reason has the APFC daughter card adhered to it. There is nothing quite like finding good capacitors in a power supply to start things off nicely. Also by the AC input we see that the PCB is silk screened to indicate that this PCB and platform services a range of units from 350w to 850w. This shared nature is common with OEMs just switching out the necessary mounted components for the ones of appropriate size to make each model.
On the secondary side we see that there is an add-in card housing the fan controller, along with the all the wiring of appropriate gauge that is bound and routed out through the back of the unit through the wire guard. This wiring is meticulously bound using zip-ties but is not anchored to the housing via the bracket on the back of the unit. The secondary is filled with Nippon Chemi-con capacitors making this unit an all Japanese affair as billed.
Overall the build quality of this unit is excellent like we have come to expect from the newer CWT units that continue to feature CWT's independently regulated designs. The capacitor selection is top notch and the unit is extremely clean and well put together. Additionally, the secondary is well organized with all the wiring being neat well bundled and protected by a wire guard as it exits the units housing. Finally, the unit features a single 140mm Yate Loon fan that should be sufficient to well cool this unit. As it stands, it looks like Corsair is fielding a real winner in the TX750W.