7(x64) Totally freeze with 4 gb of ram never with 3 gb

Hi everyone

just a little thing, i'll try to do my best with english but if something is not understandable just say me i'll change it

So, this my problem :

I have 4 ram of 1gb, if i use them witout 'remapping memory feature' in my bios all works great.
In this case i've only 3.3 gb of ram usable.

If i activate 'remapping memory fetaure' to use full 4 gb of my ram my computer freeze randomly.
there is never BOSD it just freeze.

Boot is always ok, all seams to be good but sundently it freeze (screen, sound, mouse, keyword) and i have no other choice than hard reboot

My PC :
OS : windows 7 PRO (x64) new instal from DVD all driver update
MB : Asus P5Q-e bios update
CPU : Intel Q6600
RAM : Corsair 4 x CM2X1024-6400C4DHX
Power : corsair 550w

No overclock at all
no overheat


I've try to switch all ram between slot A1 B1 A2 B2 but no result

lot of pass of memtest86+ v4.0 without errors
same with OCCT no problem too

I've try with 2 different powersupply (seasonic/ corsair)
I've try with 2 different motherboard (Asus P5b / P5q)
I've try with 2 other ram switching all

So i've not found any material problem and i've no problem with 3gb then with 4 gb all freeze randomly

do you have any idea ?

thx

Hello Nico,

Welcome to 7 Forums.

Are you sure you are using x64? Remapping and only being able to use 3.3 gigs of Ram is a x86 thing. You can check in Control Panel\System and Security\System.

Attachment 37092

Hope this helps.

Gary

hello garysgold

yes i'm sure it's Windows 7 (x64) ^^

i think i've maybe found the problem.

I've update my wifi driver from ralink website since i stop freezing.
But not totally sure cause it's random..

My wificard is 'ovislink', in first time i've use their driver who seams work correctly but not in reallity.
Today i've take the last driver form ralink and all problem seems to be resolve. :)

Let's see in few days.

Hope it's all sorted.

Gary