P5K Deluxe power supply question.

**MIG-31** · Feb 8, 2009, 02:28 PM

I have a question i need an answer to...My current Mobo is a Asus P5K Deluxe/Wifi edition board.

I have just bought a 700w PSU SLI/Crossfire ready to power up my 4870 that requires a double 6 pin pci-e to power up.As my last psu was a little under powered.

Now back to the board itself..

If you look at the image above where the cpu power cable plugs in (Arrowed)..Previously i only needed the single input from the old psu.

Seeing as the New PSU has a double 4 pin connecter.I am currently using the single connection and would just simply like to know if i should leave it this way or plug in the second cpu power lead in..

I just dont want to cause any damage by plugging it in too quick.Or does it depend on what CPU is installed.

Neshi · Feb 8, 2009, 04:13 PM

I owned that board too a little while back, and if I remember correctly I had to put both the connectors in there. Anyway, my whole computer didn't work back then and I wasn't sure what caused it. I brought my pc to the store so they could look at it, and I got it back with both the connectors plugged in, so I guess they know what they're doing..

Mac Daddy · Feb 8, 2009, 04:33 PM

This P5E3 Deluxe had the same cap it's for PSU's that only have a 4 pin CPU power connector. I removed the cap and used the 8 pin connector on this NZXT PP-800 and would suggest you use all 8 pins as well

**Mousey** · Feb 8, 2009, 04:44 PM

It doesn't really matter if you're using 4 or 8 pins, but on a board with an 8 pin CPU Power connector you should ideally connect the extra 4 pins so you can get full power to the CPU

**kris23** · Feb 8, 2009, 04:45 PM

i use all 8 pins on my maximus shouldnt do any harm

Mac Daddy · Feb 8, 2009, 04:47 PM

Quote:

Originally Posted by Mousey

It doesn't really matter if you're using 4 or 8 pins, but on a board with an 8 pin CPU Power connector you should ideally connect the extra 4 pins so you can get full power to the CPU

It is possible in some PSU's that the rails between the 2 sets of 12V power lines are split using all 8 pins insures you are using the full capacity of these rails.

**Mousey** · Feb 8, 2009, 05:44 PM

Quote:

Originally Posted by Mac Daddy

It is possible in some PSU's that the rails between the 2 sets of 12V power lines are split using all 8 pins insures you are using the full capacity of these rails.

Isn't that pretty much what i said just in technical terms?

My mate used to have problems overvolting his E6600 because he didn't have 8 pins connected to his board, it wouldn't let him touch the voltages.
Maybe it's like on the 4870 x2 and that sort of card? Can't touch voltage unless there's enough power to it?

**MIG-31** · Feb 8, 2009, 06:12 PM

After reading whats been said above,i went ahead and tried the double connection as i asked.

It took at least ten mins or so to get the correct line up..The lead has three different points with only two of them can be used at one time.Let alone being in a difficult place when i have reasonable large hands.

Offtopic:

Just for your responce,I always leave a + rep where possible for replying.

Mac & Mousey has had some left.

Kris23 & Neshi the system has not allowed me to leave some at this time..But i will asap.

Mac Daddy · Feb 8, 2009, 07:31 PM

Cheers on the rep Bro just glad you got your answer

Quote:

Originally Posted by Mousey

Isn't that pretty much what i said just in technical terms?

My mate used to have problems overvolting his E6600 because he didn't have 8 pins connected to his board, it wouldn't let him touch the voltages.
Maybe it's like on the 4870 x2 and that sort of card? Can't touch voltage unless there's enough power to it?

Kinda sorta lol. It does matter whether you have a 4 or 8 pin connection and this is for the PSU not the motherboard. If you look closely at the mobo all 4 12V pins should feed the same trace on the mobo and ditto on the grounds.

Glad you mentioned cards with 2 PCI-E power connectors and it follows a similar concept. If your PSU has 2 seperate PCI-E power rails as my PP-800 does they are both rated at 22 Amps. If you connect the two connectors on just one rail(harness) your card has 22Amps on tap taking into consideration efficiency. On the other hand if you connect one connector from each power rail(harness) as I have on my 4870 you have 44 Amps on tap because you are cascading the power supply rails. Works the same way if your CPU power plug uses 2 independant rails of 4 pins each.

**MIG-31** · Feb 8, 2009, 08:00 PM

Quote:

Originally Posted by Mac Daddy

Cheers on the rep Bro just glad you got your answer

No problem Mac....Just for the heads up i was 70% sure adding the othe 4 pin to the mobo was ok.I just needed a little confirmation.

Feb 8, 2009, 02:28 PM	#1
MIG-31 HardwareHeaven News Mod Join Date: Dec 2002 Location: Nottingham,UK Posts: 56,818 Rep Power: 471 System Specs	P5K Deluxe power supply question. I have a question i need an answer to...My current Mobo is a Asus P5K Deluxe/Wifi edition board. I have just bought a 700w PSU SLI/Crossfire ready to power up my 4870 that requires a double 6 pin pci-e to power up.As my last psu was a little under powered. Now back to the board itself.. If you look at the image above where the cpu power cable plugs in (Arrowed)..Previously i only needed the single input from the old psu. Seeing as the New PSU has a double 4 pin connecter.I am currently using the single connection and would just simply like to know if i should leave it this way or plug in the second cpu power lead in.. I just dont want to cause any damage by plugging it in too quick.Or does it depend on what CPU is installed. __________________ Please Post Your News Submissions Here

Feb 8, 2009, 04:13 PM	#2
Neshi S.N.A.F.U. Join Date: Dec 2005 Location: Wellington, NZ Posts: 3,377 Rep Power: 177 System Specs	Re: P5K Deluxe power supply question. I owned that board too a little while back, and if I remember correctly I had to put both the connectors in there. Anyway, my whole computer didn't work back then and I wasn't sure what caused it. I brought my pc to the store so they could look at it, and I got it back with both the connectors plugged in, so I guess they know what they're doing.. __________________ If one does not attach himself to people and desire, never shall his heart be broken. But then, does he ever truly live? Life is just too damn short for if's and maybe's

Feb 8, 2009, 04:33 PM	#3
Mac Daddy DriverHeaven Extreme Member Join Date: Jul 2002 Location: Ontario, Canada Posts: 7,950 Rep Power: 79 System Specs	Re: P5K Deluxe power supply question. This P5E3 Deluxe had the same cap it's for PSU's that only have a 4 pin CPU power connector. I removed the cap and used the 8 pin connector on this NZXT PP-800 and would suggest you use all 8 pins as well __________________ "My mom said the only reason men are alive is for lawn care and vehicle maintenance." - Tim Allen

Feb 8, 2009, 04:44 PM	#4
Mousey Synth's Long Lost Bro Join Date: Jan 2007 Location: Web Design Hell Posts: 7,188 Rep Power: 245 System Specs	Re: P5K Deluxe power supply question. It doesn't really matter if you're using 4 or 8 pins, but on a board with an 8 pin CPU Power connector you should ideally connect the extra 4 pins so you can get full power to the CPU __________________

Feb 8, 2009, 04:45 PM	#5
kris23 Going Insane..... Join Date: Dec 2006 Location: Los Angeles Posts: 6,017 Rep Power: 131 System Specs	Re: P5K Deluxe power supply question. i use all 8 pins on my maximus shouldnt do any harm __________________ Hardwareheaven Super-Moderator Building a new computer system and not sure where to start? Click Here! last updated (5/18/11) Rosewill FUTURE case replaces CM 690 II with its greater interior length. Building a PC: Step by Step Guide Written by Kristopher Pedemonte and Nathan Marks-Forder Edited by Allan Campbell Questions or Comments? feel free to post them in the forums!

Feb 8, 2009, 06:12 PM	Thread Starter #8
MIG-31 HardwareHeaven News Mod Join Date: Dec 2002 Location: Nottingham,UK Posts: 56,818 Rep Power: 471 System Specs	Re: P5K Deluxe power supply question. After reading whats been said above,i went ahead and tried the double connection as i asked. It took at least ten mins or so to get the correct line up..The lead has three different points with only two of them can be used at one time.Let alone being in a difficult place when i have reasonable large hands. Offtopic: Just for your responce,I always leave a + rep where possible for replying. Mac & Mousey has had some left. Kris23 & Neshi the system has not allowed me to leave some at this time..But i will asap. __________________ Please Post Your News Submissions Here Last edited by MIG-31; Feb 8, 2009 at 07:37 PM.