T
totod
Bought a new case and there is an extra (haven't seen before) 4 pin
square connector comes out from the PSU. What's the purpose of this?
thanks
square connector comes out from the PSU. What's the purpose of this?
thanks
Bought a new case and there is an extra (haven't seen before) 4 pin
square connector comes out from the PSU. What's the purpose of this?
thanks
Its called ATX12V connector and many Athlon mobos now require it too.ElJerid said:<totod> wrote in message news:[email protected]...
Additional power supply for Pentium 4 processors, implemented by the
majority of good motherboard manufacturers.
Can't you look it up? You have the board, the manual and access to web.I have a7v8x asus mboard. is it required on this board?
Additional power supply for Pentium 4 processors, implemented by the
majority of good motherboard manufacturers.
totod said:Bought a new case and there is an extra (haven't seen before) 4 pin
square connector comes out from the PSU. What's the purpose of this?
do_not_spam_me said:totod <> wrote in message
It provides extra amp capacity for the 12V power to the motherboard
because the 20-pin power connector has only a single 12V wire
(yellow), and a single wire can reliably provide only about 6 amps
without excessive voltage drop and heating at its connector. Things
like the CPU, DDR memory, and some AGP and PCI cards don't run
directly from the voltages provided by the power supply (3.3V, 5V,
12V, -12V, -5V) but instead from voltage regulators built into the
motherboard. They take higher voltages from the power supply and
convert them to lower voltages, and in the past these regulators were
fed from the 5V output, but fast CPUs draw so much power that the 4-5
red 5V wires (5 if the motherboard uses the extra 6-pin power
connector) may not be adequate, and using the 12V output allows
12/5ths as much power to be delivered reliably per wire.
You should use a power supply with a square 4-pin connector if your
motherboard has a matching connector because otherwise CPU voltage may
be too low or the 20-pin power connector overheat and melt slightly.
Good answer. All this "P4 boards" business gets a little annoying. OK, Intel
may have bought in the spec but all the nForce2 boards I've been working
with recently have the socket and won't run without the plug inserted.
(Well, I only tried one without the plug).
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