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Windows 7: Mis-insert Dual Channel RAM memory modules?


12 Apr 2011   #1

win7pro 64bit
 
 
Mis-insert Dual Channel RAM memory modules?

As far as I can see I have currently dual channel DDR3 RAM memory modules.
Assume it would not be written on a label sticker on the ram modules:
How can I find out if a ram modules support dual channel or not?

As I learned I have to put dual channel mondules into different channel slots to get full speed.

My motherboard has current 4 slots:
Channel A: slot 1 + slot 2
Channel B: slot 1 + slot 2

Assume I put the 2 modules into the 2 slots of channel A.
How much performance/speed loss do I get approximately?

What happens when I have two single channel ram modules:
Does it matter where (in which slots) I put them?

Peter


My System SpecsSystem Spec
.

12 Apr 2011   #2

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by pstein View Post
As far as I can see I have currently dual channel DDR3 RAM memory modules.
Assume it would not be written on a label sticker on the ram modules:
How can I find out if a ram modules support dual channel or not?
You can buy sets of RAM that work together,
If you have more RAM modules that are the same you can try them out in your PC It will work or it won't
Dual Channel is selected in the BIOS (this can happen automatically on some boards)
Quote   Quote: Originally Posted by pstein View Post
As I learned I have to put dual channel mondules into different channel slots to get full speed.

My motherboard has current 4 slots:
Channel A: slot 1 + slot 2
Channel B: slot 1 + slot 2


Assume I put the 2 modules into the 2 slots of channel A.
How much performance/speed loss do I get approximately?

What happens when I have two single channel ram modules:
Does it matter where (in which slots) I put them?

Peter
Refer to your motherboard manual or have a look here as a guide only; RAM issues Windows 7 Ultimate 64 Bit
My System SpecsSystem Spec
12 Apr 2011   #3
Microsoft MVP

Windows 7 Ultimate SP1 X64 (Windows 10, 8.1, Linux Mint, Windows XP and others in VM)
 
 

The ram should have a sticker on the module that will tell you exactly what it is and the timings. Most motherboards have 4 slots. 2 slots will be one color and the other 2 will be a different color. each color is a channel. so you would want to put 2 sticks of ram in the same color sockets. Download this free program, CPUz. It will tell you what kind of ram you jave installed in each slot, It is a good program. It will also tell you about your motherboard, CPU memory and graphics. The memory tab will tell you what type of ram (DDR2, DDR3) and whether it is in dual channel mode. Also, it would help if you went to the user CP link at the top of this page and filled out your system details. It helps when you ask questions.
My System SpecsSystem Spec
.


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 Mis-insert Dual Channel RAM memory modules?




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