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Windows 7: DDR3 RAM in i3 only shows 2GB not 6GB

01 Mar 2011   #1
richyrichuk

Windows 7 Ultimate N 64-bit
 
 
DDR3 RAM in i3 only shows 2GB not 6GB

just got cmx6gx3m3a ram which is 3 x 2GB (1stick) and in bios they(both my sticks) only show up as 2gb a piece. reset cmos/bios and check volts (1.64) have i missed something? not sure what i have done wrong.

cheers


My System SpecsSystem Spec
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01 Mar 2011   #2
stormy13
Microsoft MVP

Win 7 Ultimate x64
 
 

Make and model of motherboard would help.
My System SpecsSystem Spec
01 Mar 2011   #3
Orbital Shark

 
 

Quote   Quote: Originally Posted by richyrichuk View Post
just got cmx6gx3m3a ram which is 3 x 2GB (1stick) and in bios they(both my sticks) only show up as 2gb a piece. reset cmos/bios and check volts (1.64) have i missed something? not sure what i have done wrong.

cheers
So you've got 3 sticks of 2gb and they're showing as 2gb per stick?

Firstly, try each stick separately to see if they all work, and do that for each slot in the machine.

Next do the timings of the memory match the timings required by the motherboard?
My System SpecsSystem Spec
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01 Mar 2011   #4
richyrichuk

Windows 7 Ultimate N 64-bit
 
 

Quote:
So you've got 3 sticks of 2gb and they're showing as 2gb per stick?

Firstly, try each stick separately to see if they all work, and do that for each slot in the machine.

Next do the timings of the memory match the timings required by the motherboard?
sorry M/B is ASRock p55 pro/USB3 and the sticks no no i have 2 sticks which say on them (3 x 2GB)

sorry also full model # is CMX6GX3M3A1600C9
My System SpecsSystem Spec
01 Mar 2011   #5
richyrichuk

Windows 7 Ultimate N 64-bit
 
 

just set all DRAM timing controls to AUTO with no avail.
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01 Mar 2011   #6
thefabe

Windows 7 ultimate 64 bit / XP Home sp3
 
 

Quote:
no i have 2 sticks that say on them 3X2GB
That would make me think they are 6 gb sticks phrased that way????
How about linking us to them so we don't have to go looking ourselves?
Thanks Fabe
Edit they are 12 gb's Total http://forum.corsair.com/forums/showthread.php?t=90898
My System SpecsSystem Spec
01 Mar 2011   #7
stormy13
Microsoft MVP

Win 7 Ultimate x64
 
 

First question is why a 6 GB triple channel kit on a motherboard/CPU that only supports dual channel? Next from the manual,

DDR3 RAM in i3 only shows 2GB not 6GB-p55pro.png

You will not get dual channel with that kit either. If I am reading that right you need to have the three sticks installed A1 and B1 to start, with the 3rd stick in either of A2 or B2 (trial and error as to which will work).

Third is that that memory is not on the memory QVL,

http://www.asrock.com/mb/memory/P55%20ProUSB3.pdf

not surprising as triple channel kits would not be tested. That list isn't the be all and end all of what memory will work, but it does help. It could also be the XMP setting in the bios that is getting in the way, but from looking at the manual it doesn't look like it can be turned off.

Now with all that said try it with two sticks only in slots A1 and B1, and see if the 4 GB is detected. If it is the add the third stick, in the other slots one at a time and see if the full 6 GB is then detected.

Quote   Quote: Originally Posted by thefabe View Post
Quote:
no i have 2 sticks that say on them 3X2GB
That would make me think they are 6 gb sticks phrased that way????
How about linking us to them so we don't have to go looking ourselves?
Thanks Fabe
Newegg.com - CORSAIR XMS3 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX6GX3M3A1600C9


My System SpecsSystem Spec
01 Mar 2011   #8
richyrichuk

Windows 7 Ultimate N 64-bit
 
 

Quote:
That would make me think they are 6 gb sticks phrased that way????
How about linking us to them so we don't have to go looking ourselves?
Thanks Fabe
Edit they are 12 gb's Total 12 GB CMX6GX3M3A1600C9 suddenly 10 GB - The Corsair Support Forums

sorry fabe thought the model number may have been enough. no worries.
CMX6GX3M3A1600C9

cheers for the link i'll read now.
My System SpecsSystem Spec
01 Mar 2011   #9
richyrichuk

Windows 7 Ultimate N 64-bit
 
 

Quote   Quote: Originally Posted by stormy13 View Post
First question is why a 6 GB triple channel kit on a motherboard/CPU that only supports dual channel? Next from the manual,

Attachment 141152

You will not get dual channel with that kit either. If I am reading that right you need to have the three sticks installed A1 and B1 to start, with the 3rd stick in either of A2 or B2 (trial and error as to which will work).

Third is that that memory is not on the memory QVL,

http://www.asrock.com/mb/memory/P55%20ProUSB3.pdf

not surprising as triple channel kits would not be tested. That list isn't the be all and end all of what memory will work, but it does help. It could also be the XMP setting in the bios that is getting in the way, but from looking at the manual it doesn't look like it can be turned off.

Now with all that said try it with two sticks only in slots A1 and B1, and see if the 4 GB is detected. If it is the add the third stick, in the other slots one at a time and see if the full 6 GB is then detected.

Quote   Quote: Originally Posted by thefabe View Post
Quote:
no i have 2 sticks that say on them 3X2GB
That would make me think they are 6 gb sticks phrased that way????
How about linking us to them so we don't have to go looking ourselves?
Thanks Fabe
Newegg.com - CORSAIR XMS3 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX6GX3M3A1600C9

ok yes that makes a bit more snese now stormy, and i only have 2 sticks which total 12GB dont let the picture on new egg fool u.

helps if i get compatible RAM doesnt it, thanks for the help. anybody want to buy this as its useless to me in a pair. lol
My System SpecsSystem Spec
01 Mar 2011   #10
Orbital Shark

 
 

If you've just bought it can't you send it back for a refund?
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 DDR3 RAM in i3 only shows 2GB not 6GB




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