RAM slot issue

[STACKS ON DECK]

I have come across a issue that a motherboard (Asus p55 ml-x), it's first slot from the cpu side is only detecting ram as hardware reserved, bios also showing usable size to 4 gb, total is 8 gb, 2 sticks, both rams are OK and some time this thing shows 8gb and most of the time is hardware reserved

 

[Lutfij]

Thread of troubleshooting nature please include your full system's specs like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

Link the ram kit and pass on the revision of your motherboard's BIOS.

 

[STACKS ON DECK]

I5 750, Asus p55mlx, 8 gb ram (4*2), gtx 760, corsair ax850,
Let's see what it has for you

 

[SkyNetRising]

I have come across a issue that a motherboard (Asus p55 ml-x)

Do you have BIOS of your board updated to latest version?

 

[STACKS ON DECK]

Yup everything's fine, only issue that it sometimes works, and sometimes go hardware reserved,.

 

[STACKS ON DECK]

Anyone?