The 2x2 connector supplies only the CPU, the PCIe bus is powered by the 24pin main connector. That is why PCI express boards moved to a 24pin connector (to supply the 75W potentially needed by PCIe).That's the primary power 12v feed for that section of the board. The cpu is fed by that as well as the PCI-E bus.
You have to go by the specifications on the board. When looking at the power requirements I think this is what trips people up a little. When you think of 4 wire plug you generally think of the 4 that go with the 20 on the main power connection. But what everyone often forgets is the auxillery 12v feed that plugs in near the cpu socket. On boards with that you will note the molex socket near the back of the case on the board itself. You can plug an extra fan or even SLI feed there.
The part thats wrong. The black and yellow 2x2 plug supplies the CPU only. The extra 4 pins on what used to be a 20pin main power connector is because PCI express allows for 75W to be drawn and the 20pin wasn't able to provide that.The yellow and black four wired plug that goes in near the cpu socket is not part of the new power configuration for main power. That is an extra 12v source now available for SLI/Crossfire setups and other devices that run on 12v. The additional 4pin plug that will detach from the main connector is due to the way the newer lines of boards are layed out for a different power distribution.....What's so hard to understand about that?
The part thats wrong. The black and yellow 2x2 plug supplies the CPU only. The extra 4 pins on what used to be a 20pin main power connector is because PCI express allows for 75W to be drawn and the 20pin wasn't able to provide that.
The adapter cable allows an integrator to build a Pentium® 4 processor based system using an ATX or SFX power supply that may not provide sufficient and reliable 12 Volt power. This can lead to system component or power supply damage and/or boot failures. Standard ATX and SFX power supplies provide approximately 5A of current on the 12V supply. The Pentium® 4 processor alone is capable of drawing this amount of current, which would then leave no power for any other device in a system. Intel now recommends at least 8 Amps of current to properly power a Pentium® 4 processor based system. ATX12V and SFX12V power supplies are capable of providing this amount of power.
But what do I know.The ATX12V connector provides localized power for the CPU
The EZ-pug is a 4 pin molex connector (like the one used on hard drives and CD/DVD drives).
you can borrow my wall if you want?But what do I know.
PC-eye, what does that post have to do with this topic?