Only half my ram showing in BIOS and windows

lukebolger · 13 Feb 2013 at 18:55

Hey guys, just built a new system for gaming,

using the itx mobo http://www.sapphiretech.com/presentation/product/?cid=2&gid=361&sgid=919&pid=319&psn=&lid=4&leg=0
and corsair ram http://www.corsair.com/cmx4gx3m2a1600c9.html

but only 4 gb not the 8gb installed shows in bios and windows!

I have 16gb altogether and have tried all 4 of the stick (mobo only takes 2)of the sticks so its not a dodgy stick

I dont understand

Have I got the wrong ram for the mobo?

lukebolger · 13 Feb 2013 at 18:56

PS I read on a forum something about a CPU pin maybe bent? When I got my cpu there was a pin bent but I sorted it maybe I missed one??

teenwolf · 13 Feb 2013 at 18:57

i would get rid of the competitor link above.

Bacon? · 13 Feb 2013 at 18:59

Please remove competitor links.

1. How much RAM does your mobo support?

2. You are using a 64 bit OS right?

teenwolf · 13 Feb 2013 at 19:00

he says only showing 4gb in bios
supports 8gb max

lee32uk · 13 Feb 2013 at 19:08

bunnox said:
he says only showing 4gb in bios
supports 8gb max

Maybe he has installed a 32-bit o/s instead of a 64-bit

lukebolger · 13 Feb 2013 at 19:09

Using x64 windows 7 pro,

everything else including the case I got from OCUK but they didnt stock a cheap itx hence link

I have just carried over my hard drive from the old system, people say maybe thats the problem but I never had 4gb of ram and if I tajke one out it shows only 2gb in bios and windows.

This is dual channel ram 1600mhz

board supports dual channel up to 1333mhz

but usually the 1600will run fine and be detected but just run at 1333mhz right?

teenwolf · 13 Feb 2013 at 19:09

lee32uk said:
Maybe he has installed a 32-bit o/s instead of a 64-bit

its only showing 4gb in the bios

Martini1991 · 13 Feb 2013 at 19:11

Memory remapping?

teenwolf · 13 Feb 2013 at 19:13

clear the cmos see what happens.

Bacon? · 13 Feb 2013 at 19:14

Just took a look at your memory and its 2X2GB sets unless I am mistaken. So Showing 4GB is correct since you only have 2 DDR slots.

lukebolger · 13 Feb 2013 at 19:18

its 2x2gb EACH - its says on them 4gb (2x2) coz its dual channel

What will clearning CMOS do?

Sparx · 13 Feb 2013 at 19:19

Not quite understanding your original post.. Your Corsair RAM link takes us to a 4GB kit (2 sticks).. You say the BIOS/Windows only shows 4GB, but you have 8GB installed. Then you say you have 16GB total and have tried all 4 sticks, yet your mobo only takes 2 sticks..

Can you clarify what kit you have? Because your ITX mobo only has 2 memory slots, so all you can do is fit in 4GB if you only have 2x 2GB sticks..

teenwolf · 13 Feb 2013 at 19:21

lukebolger said:
its 2x2gb EACH - its says on them 4gb (2x2) coz its dual channel

What will clearning CMOS do?

no thats it they are 2gb sticks x2 of them. 4gb

lukebolger · 13 Feb 2013 at 19:30

hmm.i think mayeb your right, the part number on the ram is cmx4gx3m2a1600c9

But the individual sticks say 4gb (2x2gb) on them so i thought they were 4gb each.

Ok, so- if that IS the problem, can you direct me to some ram that will defo be compatible?

and whats the max I can have with this mobo? Id like as much as possible so I dont have to worry

teenwolf · 13 Feb 2013 at 19:32

TBH i have been gaming with 4GB of ram for ages and its been enough.

that mobo will take 8gb max.
if you wish to buy some more.
http://www.overclockers.co.uk/showproduct.php?prodid=MY-327-CS&groupid=701&catid=8&subcat=1516