Half of the RAM memory

fisa7

Prominent
Mar 23, 2017
8
0
510
Hi,
I got some problem with RAM's. In BIOS it shows that I have RAM's in slots 1 and 2(2 x 4 GB), but it shows total memory of 4 GB. Windows system info shows also that I have total 4GB of RAM and it only shows that RAM is only in slot 1. I tried to change RAM's into slot 1,2 and 3,4, with same result.

Motherboard: ASUS B150M PRO GAMING
CPU: Intel Core i5-7600K
GPU: MSI GeForce GTX 1060 GAMING X 6G
RAM: Kingston 8GB KIT DDR4 2133MHz
PSU: Corsair VS650
HDD: WD Black 1TB
SSD: Samsung 850 EVO 250GB
OS: WIN 10 PRO 64-bit
 

fisa7

Prominent
Mar 23, 2017
8
0
510
Yes BIOS is updated and I forgot to say that it showed 8 GB of memory when I had i5-6600k CPU in the motherboard, but I don't remember wheter it was before or after update of BIOS.