View Single Post
  #3 (permalink)  
Old May 21, 2007, 05:39 PM
sswilson's Avatar
sswilson sswilson is offline
Moderator
F@H
 
Join Date: Dec 2006
Location: Moncton NB
Posts: 15,200

My System Specs

Default

Simply put, the "added benefit" of a multi-rail unit is generally to the manufacturer and not to the user.

Up until recently the biggest problem with multi-rail units was that you couldn't simply add the rails together.... they didn't share between the rails, and that meant you were losing Amps if one of the rails was underutilized, and overworking a rail if it had most of the load on it.

Newer multi-rail PSUs (like the Mushkin SKYMTL recently reviewed) have fully active PFC which effectively turns it into a single rail unit when the load on one of the rails exceeds it's rated limits.

From a Graphics card's pov, a strong single 12V rail is preferable as it can react quickly to the sudden demands that newer GPUs can call for.
__________________
MSI Z87I Gaming AC / i7 4770K / 2X 8G Gskill 1866 Sniper / XFX XTR 750 / EVGA GTX 970 SSC ACX 2.0+
Corsair 380T / Corsair H100i GTX AIO/ Intel 730 Series 480GB SSD / Seagate Barracuda 1TB / Dell UltraSharp U2412M

Asrock AM1H-ITX / AM1 Athlon 5350 / 2X4G Gskill PC3-14900 / Intel 6235 Wi-Fi / 90W Targus Power Brick / 250G Samsung 840 Series SSD / Mini-Box M350 / 24" Westinghouse L2410NM
Reply With Quote