Dual Channel Setup

SRDave · 10-03-2009, 09:25 AM

This is for a Asus M4A785-M
I want to install 2 Pair Corsair into the motherboard. It has 4 slots 2Blue 2Black. A1_B1 are Blue, A2_B2 are black. Now Asus states Channel A is dimm A1 blue and dimm A2 black is this right for dual channel? You would think they would go in The same color slots but thats not the way it says to do it. kind of confusing?

**Tyree** · 10-03-2009, 11:04 AM

First, filling all 4 RAM slots on a Mobo is not advised as that can cause Voltage issues.
4GB of RAM is all you need.
I'm not familiar with that Mobo and I understand your confusion.
Normally, A1 & A2 would be the Dual Channel configuration but normally the slot colors are not the same in that configuration.
If no one else has a positive answer, I would suggest contacting Asus.

**greenbrucelee** · 10-03-2009, 02:27 PM

do it the way the mobo manual says.

Normally with asus mobos it will actually say during POST when dual chanel mode is active.

It way say something alomng the lines of 4GB DDR2-1066MHz dual channel mode

or 4GB DDR2-1066 with my asus mobo it is the tow blue slots in my last asus mobo it was the two blackslots. You wont damage the motherboard by having it in single channel mode or dual channel so why not swap dimms and reboot untill you find the correct combination?

SRDave · 10-04-2009, 06:42 AM

OK thanks as long as I dont heart anything I guess I will swap out till I figure it out. I might try to ask Asus but you know how that goes. I will figure it out and I will reply here so others can see how it goes.

10-03-2009, 09:25 AM	#1 (permalink)
SRDave Registered User Join Date: Oct 2009 Posts: 2 OS: xp	Dual Channel Setup This is for a Asus M4A785-M I want to install 2 Pair Corsair into the motherboard. It has 4 slots 2Blue 2Black. A1_B1 are Blue, A2_B2 are black. Now Asus states Channel A is dimm A1 blue and dimm A2 black is this right for dual channel? You would think they would go in The same color slots but thats not the way it says to do it. kind of confusing?

10-03-2009, 11:04 AM	#2 (permalink)
Tyree Mentor Hardware Team Join Date: May 2009 Location: Illinois Posts: 5,502 OS: XP Pro-7RC-Mandriva My System	Re: Dual Channel Setup First, filling all 4 RAM slots on a Mobo is not advised as that can cause Voltage issues. 4GB of RAM is all you need. I'm not familiar with that Mobo and I understand your confusion. Normally, A1 & A2 would be the Dual Channel configuration but normally the slot colors are not the same in that configuration. If no one else has a positive answer, I would suggest contacting Asus. __________________ Posting your PC specs will help us to help you quicker and more efficiently.

10-03-2009, 02:27 PM	#3 (permalink)
greenbrucelee Mentor Hardware team Join Date: Apr 2007 Posts: 1,816 OS: XP SP3 My System	Re: Dual Channel Setup do it the way the mobo manual says. Normally with asus mobos it will actually say during POST when dual chanel mode is active. It way say something alomng the lines of 4GB DDR2-1066MHz dual channel mode or 4GB DDR2-1066 with my asus mobo it is the tow blue slots in my last asus mobo it was the two blackslots. You wont damage the motherboard by having it in single channel mode or dual channel so why not swap dimms and reboot untill you find the correct combination? __________________ Microsoft certified professional, Network +, A+ certified

10-04-2009, 06:42 AM	#4 (permalink)
SRDave Registered User Join Date: Oct 2009 Posts: 2 OS: xp	Re: Dual Channel Setup OK thanks as long as I dont heart anything I guess I will swap out till I figure it out. I might try to ask Asus but you know how that goes. I will figure it out and I will reply here so others can see how it goes.