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DC to DC PSU

post #1 of 6
Thread Starter 
What exactly is a DC to DC PSU?

I had the choice between two PSU's

Seasonic X-1050 Gold

or

Corsair AX850

and I went with the seasonic one. Can somebody please give me a short explanation of what a DC to DC PSU is and if it's good or bad?

Thanks smile.gif
post #2 of 6
DC to DC generally indicates a quality design.. until recently it was relegated to the premium segment only.
DC2DC means that the minor rails are converted from the main rail(12v) by two small VRMs(just like the ones used by your VGA or Motherboard, only smaller/simpler) each on it own small PCB.


ps. both units are made by Seasonic, both are rather poor choices for a single GTX 570 system, especially the 1.05KW Seasonic-X smile.gif
Edited by Original Sin - 2/22/12 at 3:34pm
post #3 of 6
Thread Starter 
Does it matter though? because i just wanted to buy a PSU that will last me years and years since I don't want to get a PSU with low wattage because in a year I may want an SLI setup idk.

It's not like having 850 or 1050 watts is going to hurt the system right?
post #4 of 6
Either one will be fine. DC to DC threw me off because I was thinking of something more like the Pico-PSU. These still take AC from the wall and turn it into DC for the PC.
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Hard DriveHard DriveOSPower
Corsair Force 3 180gb Seagate Barracuda STBD2000101 2x in RAID1 Lubuntu / Win 8.1 / CentOS 6.4 -- Xen 4.3 FSP 80+ Micro-ATX 450w 
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post #5 of 6
Thread Starter 
yea the only reason I went for a high watt PSU is because I don't know what I am going to be buying in the future so having all of those extra watts makes me feel comfortable. I just didn't know what DC2DC was and if having all of those extra watts was going to be harmful for my computer or something. I guess the only factor is that I could have saved a lot of money and settled for something with around 600w given my current system
post #6 of 6
Quote:
Originally Posted by Fatality_ View Post

I guess the only factor is that I could have saved a lot of money and settled for something with around 600w given my current system

^That.. otherwise both are excellent units.

Enjoy your new gear!
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