16 GB RAM Installed, only 4 being used?

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lordswagrid

Commendable
Jul 20, 2016
2
0
1,510
Hey guys, I am using two 8 GB RAM sticks, but only four GB of ram shows up in the BIOS and in windows (2 per stick). At first I just thought windows had messed up, till I went into the BIOS and saw that the same problem existed there. I am not sure if this is a problem of compatibility or if it is just a couple of bad RAM sticks (they are replacements for a set of defective RAM I bought, I didnt really have a say in choosing them). I've just replaced every part except for my GPU, so I know that all my parts are new and in good condition and that they are not causing any problems concerning stability. If you need any more info, please ask and I'll provide what I can. Thanks! :D

PC Specs:
PSU- Corsair CX 650M
Processor- i5 4690k
PCU- Corsair H110i GTX
Motherboard- ASRock Z97 Extreme4 (LGA1150)
RAM- PNY MD8102SD3-1600-NHS-V2 (two sticks)
GPU- Radeon R9 280X
HDD- Seagate 1TB (not sure what model :p)
Sound Card- ASUS Xonar DGX
Case- Corsair 750D Airflow Edition

This is my first time using this site, so if I messed up on anything please tell me... Thanks guys! :)
 
Solution
Corwin65
It has nothing to do with how "powerful" the computer is. It has to do with whether or not you are using a 64 bit OS or not.

32 bit OS will not address all the RAM, 64 bit will.

Windows® 10 and 8.1*
Right-click Windows Start icon.
Click System.
Look under System for System type to see which version you are running.
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jpatrick2

jpatrick2

Respectable
May 4, 2016
458
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1,960
Hi mate! What OS are you using (x86 or x64)?

Also, have you tried any troubleshooting yet? If so, please let us know what you have tried. You could also run memtest86 to rule out defective sticks.

 
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Justiceinacan

Justiceinacan

Admirable
Jul 19, 2016
2,042
0
6,960
I know some computers have a limit to the amount of memory that they can use, but I don't think that would be a problem for a more powerful computer.

Like, I'm talking the desktop I just fixed today is over 5 years old and has a max of 4 GB ram
 
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Corwin65

Corwin65

Illustrious
Nov 2, 2015
3,572
148
37,090
It has nothing to do with how "powerful" the computer is. It has to do with whether or not you are using a 64 bit OS or not.

32 bit OS will not address all the RAM, 64 bit will.

Windows® 10 and 8.1*
Right-click Windows Start icon.
Click System.
Look under System for System type to see which version you are running.
 
Upvote 0 Downvote
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