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P6T Deluxe - 24-pin EATXPWR or 8-pin EATX12V or Both

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December 25, 2008 2:46:15 AM

I have a question on power connection from PSU to Motherboard and Video Card.

What connection I use to connect PSU to Motherboard. P6T Have 2 connections 24 - pin EATXPWR and 8-pin EATX12V and my PSU have both so do I connect just 24 pin or just 8 pin or I need to connect both ? Also next question my Video card according to picture I am looking at have to 8 - pin plugs so is that mean I need to connect both from PSU. Please help me out with this I am kinda confused. And also if possible some advice on building my system I ordered parts today and should get it in few days so I want to be prepared if something special I need to do ..may be some special tools I need to make build easier, I really don't know what exactly but if anyone have some advice please let me know. Thank you in advance. Here is my complete part listing that I order.

ASUS P6T Deluxe LGA 1366 Intel X58 ATX Intel Motherboard - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Intel Core i7 920 Nehalem 2.66GHz LGA 1366 130W Quad-Core Processor Model BX80601920 - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

LITE-ON 22X DVD Burner with LightScribe Black SATA Model iHAS422-08 - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Antec TruePower Quattro TPQ-1000 1000W ATX12V / EPS12V SLI Certified CrossFire Ready
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

ASUS EAH4870X2/HTDI/2G/A Radeon HD 4870 X2 2GB
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

G.SKILL 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Antec Twelve Hundred Black Steel ATX Full Tower Computer Case - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

ASUS VW246H Black 24" 2ms(GTG) HDMI Widescreen LCD Monitor - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Arctic Silver 5 Thermal Compound - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Western Digital VelociRaptor WD3000GLFS 300GB 10000 RPM SATA 3.0Gb/s Hard Drive - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

ZALMAN CNPS 9700 NT 110mm 2 Ball Ultra Quiet CPU Cooler - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

ZALMAN ZM-CS4A Socket 1366 Clip Support Kit for CNPS9500/9700 - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E168...


So here it is the whole system. If someone have any advice on something please let me know. Thank you for best community of geeks around :D .

P.S.

Love this forum
December 25, 2008 4:07:15 AM

Correction.

In my ASUS Card there is 1 8-pin and 1 6-pin. Do i use them both or just one ?
a c 248 ) Power supply
a b V Motherboard
December 25, 2008 1:54:02 PM

Your ASUS motherboard requires two psu power connections - a 24 pin power connection and an 8 pin power connection. Connect both psu cables to your motherboard. Remove the black plastic cover from the 8 pin connector on your motherboard. You can pull it off very easily.

I am not familiar with the video card. Perhaps someone else will be able to answer your question.

Related resources
December 25, 2008 7:55:02 PM

Thank you, I think I understand now. Looks like on my Video card there is a 1 8-pin and 1 6-pin connector that I will need to connect both of them and each (6 and 8 pin) must be from different rails because of 4870x2 power consumption will exceed 18W. Is this correct ?
February 19, 2009 4:28:37 AM

So this worked out fine? Please let me know.

I too have the Asus P6T and noticed the instructions are NOT AT ALL CLEAR.

The motherboard has a 24-pin EATXPWR and an 8-pin EATX12V.

My power supply has a male 20-pin EATXPWR connector and an adjacent 4-pin EATXPWR connector; combining these two makes a 24-pin EATXPWR connector that can plug into the motherboard socket (24-pin EATXPWR).

My power supply also has 2x4-pin CPU connectors that can plug into the motherboard's 8-pin EATX12V. Why the hell would Asus block one of those 4-pin connectors with a plastic cap? WTH?


WHY DON'T THEY JUST POST A DAMN PHOTO of the cables connected to the motherboard, so I don't have to second guess what to or what not to connect?!!!
a b V Motherboard
February 19, 2009 4:35:40 AM

They block it because it is compatible with either 4 or 8 pin, and if you have a 4 pin, you leave the cap on and only connect those 4. For an 8 pin, remove the cap, and connect the full connector. The 24 pin connects exactly as you discovered.
February 19, 2009 4:47:01 AM

The confusing thing is that my power supply divided the 8--pin cable into two separate 4-pin cable connectors that are adjacent to each other. So am I supposed to use just one of them (4-pin) or both of them together (8-pin)?

And so I use this IN ADDITION TO the 24-pin cable which is 20-pin and a 4-pin cable next to each other?
February 19, 2009 4:51:46 AM

The reason I am so scared is that the Power Supply cable that has the 20-pin EATXPWR and the adjacent 4-pin EATXPWR connector has a warning label attached to the 4-pin. It says "WARNING! Do not connect this wire with the 4-pin 12V ATXPWR. Doing so will damage the CPU and Motherboard.

I also read in another thread where an ASUS MB user had fried his MB and CPU by hooking up two many power cables. Not sure that applies to my MB though.
a b V Motherboard
February 19, 2009 5:14:20 AM

The warning is just telling you that the 4 pin that goes with the 20 pin is NOT the same as the 4 pin that goes in the CPU power connector. The 4 pin that says that should go with the 20 pin to make the full 24 pin motherboard main power connector, while the other 4+4 pin should connect to the CPU power socket. You should use the full 8 pin CPU power connector if your power supply has it, as the i7 is quite power hungry when overclocked (I've measured mine at around 190 watts).
February 19, 2009 11:48:56 AM

cjl said:
The warning is just telling you that the 4 pin that goes with the 20 pin is NOT the same as the 4 pin that goes in the CPU power connector. The 4 pin that says that should go with the 20 pin to make the full 24 pin motherboard main power connector, while the other 4+4 pin should connect to the CPU power socket. You should use the full 8 pin CPU power connector if your power supply has it, as the i7 is quite power hungry when overclocked (I've measured mine at around 190 watts).


Thank you so much. I'm so glad you were here to help me. I'll go ahead and finish my installation with all the sockets plugged in.
a b ) Power supply
a b V Motherboard
February 19, 2009 1:40:23 PM

cjl said:
(I've measured mine at around 190 watts).

I'm interested to know how did you measure it exactly. :) 
February 21, 2009 5:52:34 AM

ksfrogman said:
So this worked out fine? Please let me know.

I too have the Asus P6T and noticed the instructions are NOT AT ALL CLEAR.

The motherboard has a 24-pin EATXPWR and an 8-pin EATX12V.

My power supply has a male 20-pin EATXPWR connector and an adjacent 4-pin EATXPWR connector; combining these two makes a 24-pin EATXPWR connector that can plug into the motherboard socket (24-pin EATXPWR).

My power supply also has 2x4-pin CPU connectors that can plug into the motherboard's 8-pin EATX12V. Why the hell would Asus block one of those 4-pin connectors with a plastic cap? WTH?


WHY DON'T THEY JUST POST A DAMN PHOTO of the cables connected to the motherboard, so I don't have to second guess what to or what not to connect?!!!


Everything works well

If you have a question e-mail me at russiandivxclub@gmail.com
a b V Motherboard
February 21, 2009 6:16:43 AM

Kari said:
I'm interested to know how did you measure it exactly. :) 


Using this:

http://www.thinkgeek.com/gadgets/travelpower/7657/

I measured it at idle and at Prime95 SmallFFT load. The difference is roughly the CPU power consumption at full load (since the i7 only uses a watt or 2 at idle). I also corrected for my PSU efficiency, which is around 85% at the load it was at.
a b ) Power supply
a b V Motherboard
February 21, 2009 11:05:13 AM

ah ok, I have one of those consumption meters as well, handy gadget for sure.
I just wondered if you used somekind of a clamp meter on the cpu power cable;
http://en.wikipedia.org/wiki/Current_clamp
but your method is pretty solid also :D 
May 1, 2009 5:15:20 AM

I'm building my first monster for video editing and I was confused because the ASUS book dont call the pin the same as the PSU call it, so this post help me a lot.

920
dlx v2 p6t
4870
1000w zalman
1200 antec (great look)
12 gb mem
raid 1 system and data
raid 0 3 sata 2 320 WD blue
Audigy 2 platinum (old system salvage)
And lot's lot's of fun.

So now, I just realized... I'm an official nerd. I'm building a overkill system and...

I love it!

Thank you all
May 1, 2009 7:28:18 AM

If you can do not take ASUS P6T Deluxe v2 and get v1 because it support SAS and in video editing 15K is a must ......I think.

Now PSU ... Yes you'll use both connectors .....

Good luck !

P.S.

My system diamond solid right now .....
!