RAM Problems. only 4GB out of 8GB. [SOLVED]

[Nupid]

Hello first of all  I just discovered I have a Problem and need some tips or fixes, thought of coming here.

 

Problem:

I have 2 x 4GB Sticks of Crucial Ballistix RAM and recently noticed I only get 4GB when I checked in Taskmanager. CPU-Z shows that 8GB are build in the System but that it is in Single Channel Mode.

I noticed it when extracting a .zip file and my YouTube Video started stuttering. It hasn't always been like this, I remember seing 8GB and everything was fine. 

 

PC Specs:

Windows 7 SP1 Professional
NVidia GTX 550Ti Cyclone II
AMD Athlon II X4 630 @ 2.80GHz (not OC)
2x4GB DDR3-1333 Crucial Ballistix RAM
ASRock 970 Extreme3 R2.0 Motherboard
SandDisk 240GB SSD
Noname 500W PSU

 

What I've Tried:

-I have been looking everywhere in the BIOS to change the RAM settings to Dual Channel but couldn't find anything

 

-Checking the RAM Slots individualy:

So it works in Slots 1+3 with both Sticks Only. I also switched them -> Both Sticks work, but only Single Channel = 4GB

Then I tried every Slot with 1 Stick only and NO Slot worked. 

 

I included some Pictures of my BIOS and my Taskmanager (Sorry that it is german)

I fear that either my Motherboard (relativly new ~1year) or my CPU (dunno how old, boought used in PC) is broken, what do you guys think? 

Thanks for your Help in advance and greetings from Germany!

 

~Nupid

[potatoproduction]

Do you have a 64 bit version of windows?

[Nupid]

Yes, it's 64Bit 

Sorry for German again.

[Link8451]

Change the ram slot to a2 see if that works 

[oskarha]

Put the both of the dimms in channel a (they should be in slots with the same colors or right next to each other) for dual channel opeation

Also make sure you have 64-bit windows.

[Nupid]

1 minute ago, oskarha said:

Put the both of the dimms in channel a (they should be in slots with the same colors) for dual channel opeation

Also make sure you have 64-bit windows.

I tested Slots 1+3 and it only gives me Single Channel (both Sticks switched same)

I may test Slots 2+4 later then.

[oskarha]

Just now, Nupid said:

I tested Slots 1+3 and it only gives me Single Channel (both Sticks switched same)

I may test Slots 2+4 later then.

Try 1+2.

Both of the sticks have to be in channel a.

Check you mobo manual for more info

[Nupid]

I have them in the configuration of (1) -> Slots A1 and B1.

I will test if I get the same Problem with (2) later in Slots A2 and B2.

[oskarha]

1 minute ago, Nupid said:

 snip

Hmm, although it contradicts the manual, i would still try a1 and a2, as thats whats worked for me in my amd systems.

[Trevor87]

The manual is right. It might be you have got on bad stick of ram.   

[oskarha]

Just now, Trevor87 said:

That manual is right. It might be you have got on bad stick of ram.   

I agree with that the manual is correct, but it never hurts to try

If he has a bad stick, how come it shows up in the uefi and cpu-z?

[Harjan]

You could try this :
http://www.tomshardware.co.uk/answers/id-1842630/8gb-ram-installed-windows-64bit-usable.html#11959943

Or go to msconfig -> boot -> advanced options and check if max memory is set, if so uncheck it .

[Nupid]

Weeeeeeeeeird.

It did NOT work in 1+2 or 2+4 BUT it works just fine in Dual Channel in Slots 2+3 (A2 and B1).

I don't understand it at all but I'm glad it works somehow lol.

 

May I ask what the "DC Mode" is? Is it ok if its unengaged? 

[oskarha]

Just now, Nupid said:

Weeeeeeeeeird.

It did NOT work in 1+2 or 2+4 BUT it works just fine in Dual Channel in Slots 2+3 (A2 and B1).

I don't understand it at all but I'm glad it works somehow lol.

Very weird, but im glad you got it working