Memory

I just built a new system, and put 1 stick 8GB dual channel. Speccy reports it a single channel. After investigating I found out, MY ERROR. Most motherboards will report odd number of memory sticks as single channel. So may I assume if I add 8GB more, same memory, correct slot it will report Dual? And if that is correct adding an extra third would not be wise.

1 hour ago, Jbert49 said:
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		So may I assume if I add 8GB more, same memory, correct slot it will report Dual?
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yes. if your motherboard supports dual-channel. you must put the 2 sticks on the right slots... to activate "dual-channel"

for example:

RAM-Slot 1 + 3

RAM-Slot 2 + 4

you must read it in your manuall for your motherboard how its managed. or simply tried it.

1 hour ago, Jbert49 said:
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		And if that is correct adding an extra third would not be wise.
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yes, a 3. RAM-Stick for "dual channel" is not fine.

but a 4. RAM-Stick (if your motherboard have 4 slots) is nice.

1 hour ago, Jbert49 said:
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		Most motherboards will report odd number of memory sticks as single channel.
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its possible, that "dual-channel" will be deactivated if you have installed 3 sticks of RAM in your MB. but i dont know exactly, i dont have tried it

1 hour ago, Jbert49 said:
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		I just built a new system, and put 1 stick 8GB dual channel.
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mmmh. are you sure that at the 8GB stick is "dual channel" to read?

perhaps there is on the label "double sided"?

there are two completely different things meant.

2 hours ago, trium said:
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		mmmh. are you sure that at the 8GB stick is "dual channel" to read?
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	<p>
		perhaps there is on the label "double sided"?
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	<p>
		there are two completely different things meant.
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Or it could have stated for instance 'dual rank', which also isn't 'dual channel'.

I'd recommend using HWiNFO or HWiNFO Portable (both are free) to find out.

i use CPU-Z -> also a little free tool

here the portable version to download CPU-Z v1.96 zip (3,2 MB Size)

the downloadpage:

https://www.cpuid.com/downloads/cpu-z/cpu-z_1.96-en.zip

unzipp the file -> go into the unzipped folder and start the file "cpuz_x64.exe"

click on the tab "Memory" -> under there you see if your RAM is dual channel or not

ccleaner cpuz.JPG

On 12/07/2021 at 20:50, Jbert49 said:
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		So may I assume if I add 8GB more, same memory,
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interessting info to this:

if your cpu have "intel flex-memory-access" the size of your RAM-Stick can be different

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		<strong>IntelĀ® Flex Memory Access</strong>
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		The IntelĀ® Flex-Memory-Access enables easier memory upgrading, since modules with different memory sizes can be used and the two-channel mode is retained.
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i mean your newer (intel?) cpu have this... if this a (amd) cpu also have, i dont know.