Hi,
After upgraded to Win 10 (x64) , I noticed that my 8GB RAM installed, usable only 4GB.
May I know what is the problem ?

thanks

check bios first .
is it detect all ur ram

download speccy and post the result here

Checked, is 8GB

Are you using an older computer? Older model (usually laptop) has capped for they CPU on how much RAM it can read.

checked . CPU-Z



Attached thumbnail(s)

Old desktop, year 2010.
While on Win 7, shows 8GB ; after upgraded to Win 10 , it shows : Installed 8GB RAM (4GB usable)

taskmanager screenshot?

is ur win10 32bit or 64bit?
32bit os have ram capped to 4GB only

64bits

right click the windows start icon on the bottom left
run
winver
and paste the screenshot here so that some of the experts here can check your
version

its time to update your bios and use default bios setting.

happens to my asus rog mobo. detect 16gb but only running 8gb.

tired of checking the bios setting, just reset to default setting and walla. 16gb back.

ehhm , I used up all 4 slots....but it said 2 of 4 used.
but 8GB was display in screen shot.

apa jadi ?



Attached thumbnail(s)

try msconfig > boot > advanced options > check if maximum memory is ticked

unticked.

Can I know how to reset to default setting ? thx
p/s: BIOS shall be latest, but I will recheck later.
will update.

Win 10 ver 1607

sorry but mind telling us again how do you show that only 4gb is being used?

where does it show it / how did you suspect this and from which screen?

When u wanna gi out from bios it will ask u to save or discard or use default setting

it was showing on the red arrow column , but after I did a memory scan, it shows as per screen shot.

This post has been edited by jpong1: Sep 13 2016, 03:58 PM


Attached thumbnail(s)

mm very odd..
have u done anything related with cache?
i mean virtual memory setting

good but how about this way

control-alt-delete
task manager
at the bottom click Open Resource Manager
then click on the memory tab
and look for this screen and the info

it said installed 4096

it shows 4096 Available? Available available - what does Available show?

at this stage I suspect that there is a software reporting module that is not correctly
reporting you total physical ram

I now suggest that you use a ram testing program like memtest or some other ram
testing diagnostics (not the default one that you have used so far)

if I were you I would download a bootable DVD or usb that has diagnostic testing prgs
like Hirens or something similar

don't have - ask some experts here to show you where to download

you need to see on the bios 1st. luckily asus board ha the function.

so, it display installed 16gb and usable 8gb.

otherwise, either your ram is faulty or bios problem.

sometimes, eventhough the ram is faulty, windows still can boot but show less memory.

Speecy...


Attached thumbnail(s)

sorry.. where can find virtual memory settings... i alsosg prompt me saying visual memory low... even i got 8gm ram running w10

virtual memory setting
try resetting to Automatic
see if that helps

Thanks for help. Done as your advise....Still the same.

so looks like you've installed the 32 bit of windows which cant use beyond 4gb

back to fresh install is your only way

problem solved

Cant be , cause when I was still on Win 7 (64bits), RAM always 8GB.
After upgraded to Win 10, found this problem.

will try your method 2molo.
thx

try download usb 64bit linux like linux mint and try boot it.
see how much ram it detected

or find spare hdd/SSD(better) and install window10 64bit
need to find problem with OS or not

RAM both DDR3 or you bought a DDR3L for the new one?
Not sure if this would affect it, just throwing stones at this point.

Thanks all for help..
After start-up this morning (done nothing last night, except mentioned before), the RAM shows 8GB, back to normal.

Miracles do happen !!

Win updates shows many updates done and one still hang at 45%; not sure these updates help not....

Check this out bro.

https://www.reddit.com/r/techsupport/commen...me_dell_studio/

so far so good till now...will monitor few more days ...thx

Thats how your system performance. Most app dont take so much ram. 8gb is consider enough for none video editing. U may notice when running games it would use up to 7gb ram.

I use 16gb ram.

Thats how your system performance. Most app dont take so much ram. 8gb is consider enough for none video editing. U may notice when running games it would use up to 7gb ram.

I use 16gb ram.

thanks, all back to normal now.