According to the PCI-SIG PCIe x16 Graphics 150W-ATX 1.0 (latest)
specification, as much as 75W can be pulled from the PCIe slot itself (5.5A
on +12v, 3A on +3.3v), and an additional 75W can be pulled from the 6-pin
PCIe power connector.
Greg
----- Original Message -----
From: "Thane Sherrington (S)" <[EMAIL PROTECTED]>
To: "The Hardware List" <[email protected]>
Sent: Thursday, May 11, 2006 11:42 AM
Subject: Re: [H] Question on dual 12V rails
At 09:54 AM 11/05/2006, Greg Sevart wrote:
Could be the chipset, fan(s)/fan regulator(s), or something like that.
Most other motherboard components (PCI cards, memory, etc) use the +3.3
and especially the +5.0 rails for everything else. Of course, PCIe cards
can suck down a lot of power directly from the +12v motherboard rail,
without the 6 pin SLI/PCIe connector.
So the motherboard 12V would be used (if applicable) by everything plugged
into the motherboard that doesn't have it's own plug to the PS? What is
the power requirement for a PCIE video card that doesn't have an external
connector?
T
