4g ram installed,3.5g detect

[Black]

i m using GA-p35-Ds3L mobo with 4 stick ram with 1g every stick.os win xp sp2 32bit,why the windows detect only 3.5g ram?because,the installed ram is 4 g?

[Rick]

windows XP and Vista 32 bit
Have a 3.n gig limit
To use all 4 gig you will need to get a 64 bit version of Windows

However the 32 bit version do a good job with 4gig installed

[Black]

ok,thanks bro

[johnny_quest]

right... winxp 32bit will recognize 4gb max of memory addresses... not just physical ram sticks, so other devices/buffers take away from that 4gb leaving 3.n

[rio_bugarin]

I have 4g installed too. but windows only shows 2.6g

[Rick]

A number of people have the same problem

1st does your bios see all 4gig ?
If so then it is the chipset and or drivers that aren't giving the info to windows.

Another area I have seen where it doesn't show up
is the memory settings in the bios
if the memory interlace is set wrong it can mess it up