asus p6t deluxe power connector question

2442 Views 11 Replies 7 Participants Last post by chobes, Nov 28, 2009

chobes

Discussion Starter · Nov 26, 2009

im setting up my i7 system as i type this

i have a question regarding the power connector for the 8 pin on the top of the mobo.

when i took it out of the plastic there was a black cover that covered 4 of the 8 pins. my psu has the option to use just 4 pins or 8 pins. what should i do? use the 8?

i read the manual and it said for "fully configured systems" what the heck does that mean!?

im so hyped guys, just upgraded from an e6600!

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JoeC

· #2 · Nov 26, 2009

Hey Chobes,

Yes, use the 8 pins. I have the same board as you do and for a "fully configured system", I would assume, that this is to provide full and proper power to ALL devices/Slots used on the Mobo.

But, I assumed and that means my definition is probably wrong.But it sounds logical to me anyway.

Also, CONGRATS on the upgrade!! Your gonna love that chip.

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chobes

Discussion Starter · #3 · Nov 26, 2009

Quote:

Originally Posted by JoeC

thanks for the input, i just plugged it in for the sake of it. i just thought it was odd that they would cover 4 of the 8 pins like that?!

i had a problem with it posting but losened the screws that held down the mobo and it booted fine

first thing i did was isntall crysis warhead. all i can say is wowee what an upgrade! before getting my 5850 i had a 320 8800 gts.. i thought that was good. then the 5850 blew it out of the water, now this i7 920 is just amazing

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lardo5150

· #4 · Nov 26, 2009

I would like to add, that I have a cooler master 700w psu, and the second 4 pin connector does not match up with the second 4 pins on the board (square pins and half moon pins).
I went out and bought a new cosair 850w psu, and it is the same way.
Are there only certain PSU's that have the correct connector?

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Old Hippie

· #5 · Nov 27, 2009

Quote:

i just thought it was odd that they would cover 4 of the 8 pins like that?!

Some MBs only come with a 4 pin socket.

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chobes

Discussion Starter · #6 · Nov 27, 2009

Quote:

Originally Posted by Old Hippie

Some MBs only come with a 4 pin socket.

but this had 8 with a cover on 4, why bother covering it if its needed? if to protect? why cover only 4?

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Old Hippie

· #7 · Nov 27, 2009

Quote:

Originally Posted by chobes

but this had 8 with a cover on 4, why bother covering it if its needed? if to protect? why cover only 4?

To protect the power connectors from shorting on something if they're not needed?

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PathogenX

· #8 · Nov 27, 2009

Its because some powersupplies dont have an 8 pin connector only 4 pin

you can plug in 4 pin and it would boot just fine
the reason it has 8 is if your overclocking
you dont want to overclock with with only a 4 pin as 8 pin provides more power.

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Robilar

· #9 · Nov 27, 2009

I don't think its about more power. What it does is allow the motherboard to provide cleaner power (less spikes) by running the provided voltage through more of the phase conductors.

As mentioned above, some motherboards come with only 4 pin connectors (usually lower end models). Some power supplies only come with a 4 pin connector.

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slickwilly

· #10 · Nov 27, 2009

Sadly my Asus P5N-D only hase the 4 pin connector thus limiting my OC endevors
on my Q9550

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Old Hippie

· #11 · Nov 28, 2009

How about.....

Quote:

If the board has a 2x4 (8 pin connector), it is prepared for high power
consumption processors. A 2x2 connector, has two 12V wires, and if you
allowed them to carry 6 amps each, that would be 12 amps of capacity.
12V * 12A = 144W. (They are probably capable of a bit more than that,
and the 6 amp number is conservative. I'd have to find the connector
datasheet again, to verify the real number.) If the 144W of power is
converted by a Vcore regulator at 90% efficiency, that is 129.6W of power
that the processor can use. Rounding off, that is 130W, which is enough
for a high end P4 processor from a previous era.

The whole 8 pins are useful, if you were doing an overclocking experiment,
and were expecting a lot more power than that to flow. Overclocking a
Pentium D 805 to 4GHz, would be an example where a motherboard with a
2x4, and a power supply with a 2x4 connector, might be useful. The power
consumed there, is over 200W.

Many of the processors people are using now (Core2 Duo or some of the
AMD socket AM2 processors), use less power than the 130W number. The
Core2 Duo is 65W, or half that. As a result, you can use a 2x2 PSU
power connector, on a 2x4 equipped desktop board, without too much
danger of the connector melting or anything. For most people, there
is nothing to worry about. Only the "rocket scientists" are in
danger of melting something (the D 805 people who try to get the
same results as the Tomshardware overclocking article).

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chobes

Discussion Starter · #12 · Nov 28, 2009

well thanks to all for answering my questions regarding the 4 pins covered.

you guys are great

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