16GB RAM installed, Total Memory only 8GB , what do?

[Confused Meatball]

i have 2x8 GB RAM sticks which only have a label relating them to my mother board ;
ASUS A68HM Plus. I bought most of the PC pre-made, so am just as in the dark about the exact origins as you are. And before you ask: yes, i do have a 64 bit operating system

Ok so ive tried to fix this by myself by looking at what worked for others because i am not the only one having this issue ,but of corse, none of it has worked . Ive tried everything from checking the cap in the msconfig menu, re-seating my RAM sticks, to updating my BIOS and raising the voltage to 1.5V; All of which failed to make an impact. However somethings i noticed were that both the BIOS and windows its self seem to aknowledge that i have 16GB installed and both say that the total memory only comes down to 8GB. i also tried inserting the sticks individually , both seem to work in both slots , just not together.

I really could use some help here lads.

Ok, after looking in "Ressourcenmonitor" (translates to "resource monitor" sorry my PC is in German) The missing 8GB seems to be reserved for hardware, i honestly dont know what that means.

[_I_]

check msconfig boot tab advanced, make sure the ram limit is not checked

[Confused Meatball]

_I_님이 먼저 게시:

check msconfig boot tab advanced, make sure the ram limit is not checked

yep it was unchecked

[_I_]

what ver of windows?
7/vista home basic have 8g limit

[Confused Meatball]

_I_님이 먼저 게시:

what ver of windows?
7/vista home basic have 8g limit

im running windows 10 64bit

[_I_]

check with cpuz to make sure both dimms are installed/working

[Confused Meatball]

_I_님이 먼저 게시:

check with cpuz to make sure both dimms are installed/working

What is Cpu Z?

[_I_]

https://www.cpuid.com/softwares/cpu-z.html

memory tab shows total ram installed and current freq(speed/2)/timings
spd tab shows xmp/spd profiles for each dimm

[Confused Meatball]

_I_님이 먼저 게시:

https://www.cpuid.com/softwares/cpu-z.html

memory tab shows total ram installed and current freq(speed/2)/timings
spd tab shows xmp/spd profiles for each dimm

ok , i got it ,do you just want a screenshot because i dont really know what im looking at anymore

:(

[Ad Hominem]

The Sentinel님이 먼저 게시:

_I_님이 먼저 게시:

https://www.cpuid.com/softwares/cpu-z.html

memory tab shows total ram installed and current freq(speed/2)/timings
spd tab shows xmp/spd profiles for each dimm

ok , i got it ,do you just want a screenshot because i dont really know what im looking at anymore

:(

Just click on the Memory tab up top and look on the top left where it says "Size". Also can double check your memory speed where it says "DRAM frequency". Remember this is DDR so you have to double that number which should add up to the speed of RAM you bought. Also while you're here, make sure it says Dual under "Channel #"

[Confused Meatball]

Ad Hominem님이 먼저 게시:

The Sentinel님이 먼저 게시:

ok , i got it ,do you just want a screenshot because i dont really know what im looking at anymore

:(

Just click on the Memory tab up top and look on the top left where it says "Size". Also can double check your memory speed where it says "DRAM frequency". Remember this is DDR so you have to double that number which should add up to the speed of RAM you bought. Also while you're here, make sure it says Dual under "Channel #"

All checks out, exept for one thing , under channel# it says single

[Ad Hominem]

The Sentinel님이 먼저 게시:

Ad Hominem님이 먼저 게시:

Just click on the Memory tab up top and look on the top left where it says "Size". Also can double check your memory speed where it says "DRAM frequency". Remember this is DDR so you have to double that number which should add up to the speed of RAM you bought. Also while you're here, make sure it says Dual under "Channel #"

All checks out, exept for one thing , under channel# it says single

OK, so your system is reading all 16GB of ram which is a good thing. When it says 'Single' that means that one of the sticks is probably in the wrong slot. It will work just fine as is, but ideally you'd want to be running the ram in dual channel mode. Think of it like each ram stick having it's own road to drive on, vs them both having to share the same road to the CPU. Right now they both have to share the same road.

Did you put this system together? If you look in at at the motherboard, you will probably have 4 ram slots, and 2 of them are filled right now. You might notice that 2 of the slots are one color, and the other 2 are a different color. This can be kinda confusing because there's no real standard for A and B channel ram slot colors. I've seen some that want you to use the same color for A and B, and some want you to use different colors for A and B.

You'd need to just pull up your motherboard manual, or download if you dont have it anymore, and look at the DIMM section for how the slots are configured. You will want one stick to be in the A channel, and the other to be in the B channel so they both have their own road to the CPU.

[Confused Meatball]

Ad Hominem님이 먼저 게시:

The Sentinel님이 먼저 게시:

All checks out, exept for one thing , under channel# it says single

OK, so your system is reading all 16GB of ram which is a good thing. When it says 'Single' that means that one of the sticks is probably in the wrong slot. It will work just fine as is, but ideally you'd want to be running the ram in dual channel mode. Think of it like each ram stick having it's own road to drive on, vs them both having to share the same road to the CPU. Right now they both have to share the same road.

Did you put this system together? If you look in at at the motherboard, you will probably have 4 ram slots, and 2 of them are filled right now. You might notice that 2 of the slots are one color, and the other 2 are a different color. This can be kinda confusing because there's no real standard for A and B channel ram slot colors. I've seen some that want you to use the same color for A and B, and some want you to use different colors for A and B.

You'd need to just pull up your motherboard manual, or download if you dont have it anymore, and look at the DIMM section for how the slots are configured. You will want one stick to be in the A channel, and the other to be in the B channel so they both have their own road to the CPU.

Ah, my mother board only seems to have two slots? but yeah ill definatley take a look at the manual

[Ad Hominem]

The Sentinel님이 먼저 게시:

Ad Hominem님이 먼저 게시:

OK, so your system is reading all 16GB of ram which is a good thing. When it says 'Single' that means that one of the sticks is probably in the wrong slot. It will work just fine as is, but ideally you'd want to be running the ram in dual channel mode. Think of it like each ram stick having it's own road to drive on, vs them both having to share the same road to the CPU. Right now they both have to share the same road.

Did you put this system together? If you look in at at the motherboard, you will probably have 4 ram slots, and 2 of them are filled right now. You might notice that 2 of the slots are one color, and the other 2 are a different color. This can be kinda confusing because there's no real standard for A and B channel ram slot colors. I've seen some that want you to use the same color for A and B, and some want you to use different colors for A and B.

You'd need to just pull up your motherboard manual, or download if you dont have it anymore, and look at the DIMM section for how the slots are configured. You will want one stick to be in the A channel, and the other to be in the B channel so they both have their own road to the CPU.

Ah, my mother board only seems to have two slots? but yeah ill definatley take a look at the manual

Oh. I guess I need to look up your board. If you have 2 slots then that's all you have. Your board must only support single channel.

Actually, I take that back... Your board should support dual channel. I got your manual here
https://www.asus.com/us/Motherboards/A68HMPLUS/HelpDesk_Manual/

Section 1.4
Looks like one slot is A channel, the other is B.

[Eshman]

Just wondering here but do you know what the name of your motherboard is so we might be able to view the specs as well to assist you a bit better?

[Ad Hominem]

Eshman님이 먼저 게시:

Just wondering here but do you know what the name of your motherboard is so we might be able to view the specs as well to assist you a bit better?

They are using ASUS A68HM Plus according to the OP.

Maybe there's some kinda setting in the BIOS to switch between single and dual channel memory? I'm kinda at a loss as to why it would be running in single.