Z68X-UD3-B3, 4Gb of RAM detected out of 8Gb

[Manubiwan]

Hello guys !

I've built a computer 1,5 years ago, and I just noticed, while I was doing some video editing that I was working on 4Gb of RAM while I got 8Gb of RAM installed on the motherboard (2*4Gb). I run a W7 - 64bit.
After browsing the web (and this forum) for a couple of hours... I still don't understand what's going wrong.

Some of my specs :
CPU : Intel Core i7 - 2600K CPU@3.4GHz
Motherboard : Z68X-UD3-B3
RAM : G.SKILL 8GB (4GB x 2) 1600 MHz CL9 RipJaws X Desktop RAM (Timing : 9-9-9-24)
Video : 2 * GeForce GTX 570

What I have done so far so far :
- Swapped RAM Module on every slot possible and established than all the slots are functionning
- This motherboard support up to 32Gb of RAM, so 8Gb should'nt be a problem
- All the drivers are up to date

What I suspect :
- One of the two RAM Module is dead
- Somehow, a software is caping my use of RAM

If I need to buy new RAM's module, I want to be sure that my current module is not working. So I would like to know if you guys can help me on determining what is wrong with my computer

Thx a lot.

[dmdilks]

Have you gone into msconfig / boot / advance option and make there isn't any check marks on the CPU and Memory.

[Manubiwan]

I confirm that nothing is checked on Msconfig/Boot/Advanced Settings

[dmdilks]

What does it show in the bios?

[Manubiwan]

As the OS, the BIOS only detect 4Gb of RAM.
That's why I suspect one RAM Module to be dead.

[dmdilks]

Have you tried one stick at a time?

[Manubiwan]

I'll try that tomorrow morning
Thx for all the help you bring already, it's nice to have your advice
I'll keep you in touch as soon as I've made the one RAM  Module check

[Manubiwan]

Ok.
I figured out what was happening.

I've been scammed.
The stickers on RAM modules are not the good ones.
It's not 2Gb RAM Modules, but 2Gb RAM Modules.
I figured that out while plugin the RAM Modules one by one.

So problem solved. Thx for all the advice dmdilks

[dmdilks]

Glad you got it figure out. Some times you have to start at square one. At release you know nothing is wrong with the hardware.