16GB Ram but only 7.98GB usable

neil smart · Feb 2, 2015

Hi all

i am new the this forum so hello.

i have a small issue i have 16GB ram but only 7.98GB is usable. and i have no idea how t fix it.

My PC Specs
Windows 7 home SP1
AMD FX-6100 six-core processor
16GB RAM DDR3
NVIDIA GeForce GTX 650 TI
MSI 760GM-P21(FX)(MS-7641)

i have tired the (Open "System Configuration". (Windows + R), type in "msconfig" and press OK.
Under "Boot" Tab click on "Advanced Options" and check "Maximum Memory" and select 16384.
Press OK and Apply.
Reboot.) but did not work

i have ran a memory test with no errors

Thank you in advance for an replies.

Neil

herrwizo · Feb 2, 2015

How many RAM sticks do you have?

EDIT: Also, which windows version exactly - home basic or premium? I am asking because home basic only supports up to 8GB. No more.

hardikkchavda · Feb 2, 2015

Goto BIOS and see what it shows. If it shows 16 gb than OS has problems else if shows 8 than set the BIOS to default settings and restart and if still it shows 8 gb, try updating BIOS. If all the solutions does'nt work. check each individual ram y starting the CPU.

neil smart · Feb 2, 2015

Hi
I have two sticks and windows 7 home premium.

How do I go to the BIOS????

neil smart · Feb 2, 2015

The BIOS is showing 8gb ram but I'm not sure how to set it to default. I couldn't see on option???

herrwizo · Feb 2, 2015

The most common reason is that one of your sticks is either completely dead or not being pushed into its slot all the way. Try using only a single stick for starters, and then just the other one to make sure they are both operational. If they are, make sure you plug them both all the way into respective slots (read your motherboard's manual on dual channel operation - you have to pick the right slots)

neil smart · Feb 2, 2015

ok and by the right slots you meal slot one first the slot two. i'll have a go.

Thanks

jayvis · Feb 2, 2015

buy this http://www.snapdeal.com/product/xfx-hd7770-1gb-d5-graphic/563526431#bcrumbSearch:hd%207770 XFX HD7770 1GB D5 Graphics Card hd 7770 its faster than gtx 650

Vic 40 · Feb 2, 2015

jayvis :

WHUT?

neil smart · Feb 2, 2015

So it turn out that one of the sticks is not working.. Thank you both

iLiftFood · Feb 2, 2015

jayvis wrong thread buddy.

CaptainJava · Jun 7, 2016

Several things, first thing, Uncheck maximum memory. I tried checking and unchecking and neither of them worked for me. What worked for me was simply switching the slots the RAM was in. I don't think this mattered but install the one in slot 1 first then do slot 3. MAKE SURE YOUR PC IS COMPLETELY UNPLUGGED AND THAT YOU DON'T HAVE STATIC CHARGE WHEN YOU DO THIS! TOUCH SOMETHING METAL TO REMOVE YOUR CHARGE!

Vic 40 · Jun 8, 2016

Hej Captain,old thread and already solved,

neil smart :

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16GB Ram but only 7.98GB usable

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