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PSU dual rail questions...

post #1 of 3
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Because of driver issues with the XFX8600GTS in my system, i have decided to swap it for a Evga <- 8800GTS 320mb (yeh yeh i know......bottleneck ) @ the store, costing me 50 Euro/ 67 USDollar/35 British pounds/ extra.
It will be there in a few days i hope, and need to know if this coolermaster PSU i have, will be up for the task though.....
And how best connected to this PSU........(or not connected to this PSU) don't know how bad/good quality it actually is, (coolermaster does have a name too hold up....if its utter crap, bring it to me gently )

I have this overall PSU question, how do you connect dual rail psu's? i have 1 pciXpress power connector, it only uses the 12v1 rail,
should the card be connected with the adapter provided using 12v1 on one molex and 12v2 on the other, or would that be a really bad idea (or even dangerous......)?

For example if one rail takes too much AMPS, is that what's really needed provided by the other rail, or is this not how it works.......Thanks........PSU nooB....
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Current rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
i7 2700K Gigabyte GA-Z68X-UD3H-B3 EVGA GTX670 FTW Kingston Genesis 
Hard DriveOptical DriveCoolingOS
Corsair GT SSD Sony Sata optical drive Coolermaster Z600 Media Center/Home/vista Ultimate/W7 
MonitorKeyboardPowerCase
Samsung 40" TV Razer Lycosa/LogitechG13/Belkin n52te Antec 650W triple rail Thermaltake shark bigtower 
MouseMouse PadAudio
Steelseries Sensei / Razer Taipan Custom teflon Creative X-fi Platinum 
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post #2 of 3
each rail has 16a on that, adding up to 32a. this is split amongst the gpu and processor most of the time, and other peripherals. if that thing has 2x6 pin connectors, you should be good. if not, idk.
Chief Keef
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Chief Keef
(16 items)
 
  
CPUMotherboardGraphicsRAM
e4300 @ 2.93G Asus P5B Vanilla eVGA 7900GS KO 2x1GB Crucial Ballistix 
Hard DriveOptical DriveCoolingOS
WD 250GB Samsung DVD-RW AC Freezer 7 Pro Windows 7 Ultimate Edition x86 
MonitorPowerCaseAudio
32" Insignia LED @ 1080p 550w Antec Truepower II Thermaltake Soprano Audigy 2 ZS 
Audio
Logitech 2.1 Speaker/Sub 
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post #3 of 3
Quote:
Originally Posted by mcogan10 View Post
each rail has 16a on that, adding up to 32a. this is split amongst the gpu and processor most of the time, and other peripherals. if that thing has 2x6 pin connectors, you should be good. if not, idk.
FYI 2 16a rails does not equal 32amps. It probably equals more like 24-26amps total. If you notice lets say my Liberty 620 has dual 12v rails @ 22 amps each and it totals 36a total. I am not sure of the way to figure it out but I do know you can't just add the 2 rails to get the total output. I see people all the time getting confused with the multiple 12v rail output and thought I would just mention that if you are not sure then check out your particular psu's specs with the manufacturer.
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