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Windows 10 only showing 10gb of ram

plshelp
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Go to solution Solved by plshelp,

THANK YOU FOR ALL THE HELP! I needed to restore default bios settings, and that solved it!

Hi,

 

i have 3x4gb sticks and 2x2gb sticks installed, and i noticed windows only saying i have 10gb installed not 16gb,

 

CPU-Z and Bios show 16gb of ram and ive tried to do the memory limit thing (unchecking it) with no luck,

 

any help is appreciated ?

 

thx

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Chances are it's because you are running the ram in an odd configuration. Uneven ram configuration is not usually supported so will not be grabbed by the os for use. Can we have a screenshot of the taskmanager showing the ram section? Also info on the motherboard/ram types would be helpful

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9 minutes ago, 8uhbbhu8 said:

Chances are it's because you are running the ram in an odd configuration. Uneven ram configuration is not usually supported so will not be grabbed by the os for use. Can we have a screenshot of the taskmanager showing the ram section? Also info on the motherboard/ram types would be helpful

image.png.87567b92ca793432d2183c35aba51b59.png

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5 minutes ago, plshelp said:

@8uhbbhu8

So that tells us that Windows is only seeing 2x 4GB and 1x 2GB module, based on quick maffs. What motherboard do you have, and what slots do you have the sticks inserted into? Also, the available RAM showing 6.6GB is correct based on the 3.3/3.4GB being used. Windows does some weird rounding with capacities, but otherwise it looks normal for 10GB total RAM being detected.

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Yep that sounds right for the in use and available ram. And the right amount of dimms are detected for the total ram detected. What motherboard? 

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4 minutes ago, kirashi said:

So that tells us that Windows is only seeing 2x 4GB and 1x 2GB module, based on quick maffs. What motherboard do you have, and what slots do you have the sticks inserted into? Also, the available RAM showing 6.6GB is correct based on the 3.3/3.4GB being used. Windows does some weird rounding with capacities, but otherwise it looks normal for 10GB total RAM being detected.

quick maffs xD, i have an ASUS P9X79 motherboard with 8 slots for ram, starting from the left, the USED,USED,USED, gap (where cpu is) EMPTY, EMPTY, USED USED. @8uhbbhu8

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7 minutes ago, plshelp said:

quick maffs xD, i have an ASUS P9X79 motherboard with 8 slots for ram, starting from the left, the USED,USED,USED, gap (where cpu is) EMPTY, EMPTY, USED USED. @8uhbbhu8

So that board only supports ram in 1, 2 ,4, and 8 dimm configs. Others will show up but can't be used. Make sure to fill all the blue slots first and then black slots after. 

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3 minutes ago, plshelp said:

quick maffs xD, i have an ASUS P9X79 motherboard with 8 slots for ram, starting from the left, the USED,USED,USED, gap (where cpu is) EMPTY, EMPTY, USED USED. @8uhbbhu8

Hmm interesting. Since the BIOS detects the RAM the only thing I can think of is that Windows isn't seeing it due to the particular slots used. I am not 100% sure what slots should be filled first on that board, but the manual should tell you. https://www.asus.com/ca-en/Motherboards/P9X79/HelpDesk_Manual/

 

Where are the memory modules themselves installed? Like does it go 4GB 4GB 2GB EMPTY CPU EMPTY EMPTY 4GB 2GB?

 

Nevermind, @8uhbbhu8 already looked into this and figured it out. :) Some boards are picky and don't just let you use whatever RAM config just because you can put it into the slots.

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1 minute ago, 8uhbbhu8 said:

So the board only supports ram in 1, 2 ,4, and 8 dimm configs. Others will show up but can't be used. Make sure to fill all the blue slots first and then black slots after. 

but ive had 16gb of ram installed in that config before, i think i need to reseat.

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8 minutes ago, plshelp said:

quick maffs xD, i have an ASUS P9X79 motherboard with 8 slots for ram, starting from the left, the USED,USED,USED, gap (where cpu is) EMPTY, EMPTY, USED USED. @8uhbbhu8

ah, that's bullshit what you've done.

I'm not sure if you have to use the Blue slots first.


BUT; what you should do is this:
Use one Blue slot for the 4GiB and a blue and black right next to each other...

 

If you don't get it:
Refer to the Manual and look how you have to use 4 Memory Slots.

BECAUSE LGA2011 will NOT work when you inserted the memory in the wrong slot.

And what are on wich channel.

All the channels should have the same amount of Memory.

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@plshelpHere's a diagram from their site to help with the ram config. 

image.png.480b1a1eec398049ce9f7893b909e1a4.png

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1 minute ago, plshelp said:

but ive had 16gb of ram installed in that config before, i think i need to reseat.

If it worked before that's weird for it to as there are specific channel configurations built into the motherboards and ram configs and if not set up correctly will not work because they can't communicate correctly 

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THANK YOU FOR ALL THE HELP! I needed to restore default bios settings, and that solved it!

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