Jump to content
Corsair Community

HX520 or HX620?


Recommended Posts

I will be doing a complete system upgrade next week and was deciding between the HX520W and HX620W PSU's...I see the HX520W uses a 12v rail rated at 40A while the HX620W uses a 12v rail rated at 50A


I thought a 40A 12v rail was the minimum recommendation for high end systems these days...is it OK for me to go with the HX520W or should I go for the beefier HX620W? (taking ito consideration that I might later upgrade to quad GPU's and a quad CPU)


also the TX line uses non-modular PSU's...is that better to use then modular? (PC Power and Cooling makes a big deal about this saying that consumers should only use non-modular PSU's)


my planned system specs:



8800 GTX Ultra

ASUS Maximus Formula (X38)

2 Western Digital Raptor 150 in RAID0


Creative sound card

Cooler Master CM-690 case

Link to comment
Share on other sites

If you can afford all of that fine hardware in your sig then surely you can afford the HX620. ;):


PCP&C (eg. Doug Dodson) voices opinions thru their website and interviews. Keep in mind they offered multi-rail psu's for years, but now all of a sudden they are taboo. They also shun modular designs claiming "voltage losses". Funny thing is now that they are part of O©Z I wonder how they feel about O©Z's modular & multi-rail psu's.


Obviously a single 12V rail is a good thing, especially if you are a fan of Corsair psu's. The HX1000 will be hitting the review sites soon, and we'll be able to see how much those modular connections are contributing to voltage loss on a "high power" psu.

Link to comment
Share on other sites

is a 40A 12v sufficient for even the highest end systems nowadays?

No, and keeping your future upgrades (C2Q + 3-way SLI) in mind you should consider the TX750 at a minimum. It's capable of handling a 900W load. :D:


Read more: http://www.hardwaresecrets.com/article/505/1

This unit also has all the basic stuff everyone is looking for nowadays: high efficiency, active PFC, excellent cooling solution, enough power to feed high-end video cards, five-year warranty and the best of all: it can really deliver its rated 750 W at 50º C. Not only that. During our tests we could pull up to 900 W at 45º C. So you will be basically buying a 900 W power supply paying the price of a 750 W one. What is sweeter than that?

Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • Create New...