8gb installed only 4gb usuable

R0Z4G · 24 Jan 2012 at 13:04

hi i have a gigabyte GA-EP35C-DS3R board
and ive installed 2x sticks of 4gb ddr3 totalling 8gb but windows only says 4gb usable. any ideas how i can get it to 8gb do i need to enable anything ?

True_Scotsman · 24 Jan 2012 at 13:06

What version of windows you using? What spec is the rest of the PC?

Jay794 · 24 Jan 2012 at 13:07

Must be 32bit OS

R0Z4G · 24 Jan 2012 at 13:11

windows 7 ultimate 32bit
Intel(R) Core(TM)2 Quad CPU @ 2.40GHz

Jay794 · 24 Jan 2012 at 13:12

There's you're problem, 32bit only supports up to 4GB

True_Scotsman · 24 Jan 2012 at 13:12

Well there is your problem, 32bit OS only supports upto 4GB RAM.

R0Z4G · 24 Jan 2012 at 13:13

ahh right!
ill have to reinstall windows with 64 bit then

True_Scotsman · 24 Jan 2012 at 13:14

Moonkey · 24 Jan 2012 at 13:35

yeah, it will be 4GB total addressable memory on a 32bit version of windows, and i think that also includes graphics card ram too. On my friends PC the 4GB RAM only shows up as 3.5GB due to that.

FallshirmjAEger · 24 Jan 2012 at 20:31

If you still see only 4gb afer installing the 64 bit version of windows, you may have to enable memory remapping feature in the bios.

dangermouse425 · 27 Jan 2012 at 11:19

FallshirmjAEger said:
If you still see only 4gb afer installing the 64 bit version of windows, you may have to enable memory remapping feature in the bios.

I have 2 x 4GB sticks, but for some reason the RAM is reading at half capacity. With both in they say only 4GB and with only one in each reads at 2GB. :S
I'm running Win7 64bit, and haven't changed anything, how would I enable memory remapping on a Asus P8Z68-V? I'm hoping this would solve my problem and avoid an RMA.

BarBrawllin · 24 Mar 2012 at 14:34

EDIT*oops forget everything i said,wrong motherboard LOL

Snograt · 24 Mar 2012 at 17:24

dangermouse425 said:
I have 2 x 4GB sticks, but for some reason the RAM is reading at half capacity. With both in they say only 4GB and with only one in each reads at 2GB. :S
I'm running Win7 64bit, and haven't changed anything, how would I enable memory remapping on a Asus P8Z68-V? I'm hoping this would solve my problem and avoid an RMA.

Probably a totally stupid post, but are you absolutely certain that you didn't buy a 4GB kit by mistake, i.e. 2 x 2GB?