To provide extra voltage for a processor.
What is the purpose of the 4-pin auxiliary connector on a motherboard? Video card that uses the PCI Express, Version 2 standard. What device uses the 12V 8-pin power connector? Video card that uses the PCI Express, Version 1 standard. What device uses the 12V 6-pin power connector? What are the five voltages that can be produced by an ATX or BTX power supply? Which voltage is seldom used? A computer power supply functions as both. A transformer is a device that changes the ratio of current to voltage.
#4 pin molex connector on motherboard Pc#
What is the difference between a transformer and a rectifier? Which are found in a PC power supply?Ī rectifier is a device that converts alternating current to direct current. What is the normal voltage of house electricity in the U.S.? Which type of computer case is most popular for desktop systems? Which type of case form factor is best for keeping a system cool? How many pins does the main power connector on a BTX motherboard have? Which form factor uses a riser card on the edge of the motherboard? Which form factor is a smaller version of the Micro ATX form factor? What are the maximum dimensions for a motherboard that uses the Micro ATX form factor? Mite be also needed if you OC cheaper just add a plug instead of adding more expensive solutions.How many pins does the P1 connector have that uses the ATX Version 2.2 standard? So i guess it is just cost issue or maybe materials used in board which mite overheat who knows. Here is the same P35 mobo from SuperMicro i dont see any additional power for the 4X PCIe it is identical moboĪlso if u check Intel mobos P35 u can see it is not needed really lol I think it is just cheaper for them this way didnt bother to route the power from the 4+4 pins to the PCIe. If it isn't, I'll have to make a new cable.I guess this is what u get from getting Taiwanese or Chinese Products. I guess the best idea would be to run without it and if it's stable, don't use it. I know older motherboards used a molex connector to supply juice to the video card, but I thought that went away when we went to PCIe power connections. The only thing I can see needing it would be a dedicated RAID HBA as they have their own CPU and memory. I can't see where most PCIe cards would even need supplemental power. It comes down the whether or not it supplies power to the GPU as I have no other PCIe cards. but i dont know how true this is.Īs instructed in manual, it is needed for PCIe slots power. If u use other PCIe slots for say another VGA (cross fire or multi cards) or raid cards then u need it. Some people however say that u dont need it if u just use one VGA card and leave other PCIe open. This 4pin power connector is for PCIe slots. Does that mean that it supplies the 75W that goes to a PEG slot or does that mean it's for PCIe video cards that don't have a PCIe power connector? If it's the former, it's definitely necessary. It seems that it supplies 'auxiliary power' to the PCIe slots. I'm ready to get the damn thing running already.ĮDIT. I could always make another cable, but that's more work than I'd really want to do now at this late stage in the build. The problem I have is that none of my power supply's cables are long enough to reach it without it looking really ugly (I'm seriously anal about cable management). Does anyone know what this connection supplies power to and if I even need to use it? I thought that the motherboard drew all the power it required through the 24-pin main cable and also the 4 or 8-pin EPS12v connector. I've got an Abit IP35-Pro, it has a 4-pin Molex connector on the motherboard between the first PCI and second PEG slots.
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