I have 16gb(two sticks) of ram installed on my system. My pc is only recognizing one stick of ram(8gb). I have re installed the memory several times to insure it is installed properly. I have also used CPU-Z in order to determine if the motherboard is reading both sticks of ram. I have included a photo of the results
Can you make some snips of the SPD tab in CPU-Z for each different memory socket ? How many memory socket are on your MB ?
ASRock > H81M-HDS
I think this is the motherboard.
Filling in your system specs completely would help us help you.- Dual Channel DDR3 Memory Technology
- 2 x DDR3 DIMM Slots
- Supports DDR3 1600/1333/1066 non-ECC, un-buffered memory
- Max. capacity of system memory: 16GB*
- Supports Intel® Extreme Memory Profile (XMP) 1.3 / 1.2
Use this tutorial by Brink:
System Info - See Your System Specs
The board supports 16GB of RAM.
Try to run each stick of RAM by itself to make sure one of them isn't faulty. Also, did you buy both sticks together or buy one to add to an existing one?
I put each stick in slot one and booted one at a time and they both where detected when I booted the system with one stick in at a time. I did notice that if I had either stick of ram only in slot 2 my pc attempted to come on and showed nothing oin screen in terms of the bios boot menu. My lcd fan lit up and my cpu fan started spinning for maybe 2 seconds and stop and started again two seconds later. Not sure if that is important information.
Sounds like you may have a BAD slot #2 on the MB. Try inspecting it for any broken pieces, dirt or dust in slot, bent metal connections. Use a magnifying glass if you have one available.
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