Tom's Hardware > Forum > Motherboards & Memory > Asus > 8-pin CPU powser connector (ASUS P5Q DELUXE)

8-pin CPU powser connector (ASUS P5Q DELUXE)

Forum Motherboards & Memory : Asus - 8-pin CPU powser connector (ASUS P5Q DELUXE)

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hluo99   06-03-2009 at 04:50:27 PM

Hi,

the motherboard(ASUS P5Q DELUXE) manual says "Do not forget connect the 8-pin EATAX 12v power plug. otherwise, the system will not boot", but i found that four of 8 holes are blocked with a black plastic cap. If it is required, why the four holes are blocked although i can remove the cap?


Thanks,

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Bronze Motherboards badge GhislainG   06-03-2009 at 05:59:49 PM
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You can either use a 4-pin or 8-pin ATX CPU power cable. 8-pin is required for Extreme CPUs, but if your PSU has an 8-pin ATX CPU connector, then remove the black cap and use it.

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starams5   06-03-2009 at 06:13:31 PM
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Everything G said is correct. Like he said it all boils down to CPU power. If you have a CPU with higher power requirements then you should use the 8-pin because it allows redundant pathways for current to flow to the chip and reduces the chance of burnt pins. The 8-pin will work with all CPU's, however the 4-pin may not work with all CPU's, especially at high overclocks. I believe the power breaking point is 70 watts. If your CPU dissipates 70 watts then you should use the 8-pin for best results. This is general advice, many people have run CPU's with 70 watts dissipated power using the 4-pin and never experience any problem.


Message edited by starams5 on 06-03-2009 at 06:52:54 PM
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hluo99   06-03-2009 at 06:55:49 PM
- 0 +

Thanks,

I am using Intel Core2 Quad Q9400 2.66GHz 6MB L2 Cache LGA 775 95W Quad-Core Processor. so I need use the 8-pin power connector.

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starams5   06-03-2009 at 06:56:42 PM
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Most definitely!

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jim2006193   07-29-2009 at 11:38:49 PM
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what about a c2d e8200?

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