Discussion in 'OT Technology' started by WoundLicker, Feb 15, 2008.
Is there any way to get Xp to use more than 2.5 gigs of RAM?
32-bit XP has a limit around 3.4MB or so. To go above that you need a 64-bit operating system, and there is a 64-bit XP version.
use a 64 bit operating system. other than that, no.
Well then somthings really screwed up then. My XP pro 32 bit is only running with 2.5 gigs of ram yet i have 4 gigs installed.
I'm not a computer noober so you can hit me with details.
cpu-z output http://members.shaw.ca/darinhen/cpuz.htm
I still don't understand why people would want that amount of ram on an XP install
are you running Vista?
where are you seeing that your system only has 2.5Gb of ram? what does system information show you? does it disagree with your total physical memory amount?
what mobo are you using.
From his CPUz report: ASUS A8N-SLI Premium (ACPI BIOS Revision 1009)
it is in there somewhere.
you know, i have to agree. until i came in this forum, only a few people who use their PCs for professional 3D rendering and video editing needed all of that memory. now i see all of these people looking to run XP 64-bit on a home PC so they can run god knows what.
on the other hand, i could see him being concerned that he bought 4Gb and only 2.5Gb is showing up.
Looks like it can support
4 x DIMM, Max. 1 GB, DDR 400/333/266 ECC,Non-ECC,Un-buffered Memory
Dual Channel memory architecture
What does memtest show? Does that see all 4GB of RAM?
I assume the bios see's all 4G.
the latest bios is 1303, but all it says is enhance sata compat
Only thing I do that takes up that much memory is decompressing several files at once. But I don't feel the need to add more RAM because I don't do it very often and once its done I have more than enough (2GB total).
There is one program I have always running that is quite the memory hog, Desktop X. When I first got it, my old system only had 512MB of RAM and it would slow my machine down so it would pretty much unuseable.
I'm still wondering about this.....
the only things i can think of are VMWare (and thus you need additional memory for additional OSes) and World of Warcraft, but i don't think that needs more than 2Gb.
Honestly i just wanna get the bang for my buck. If i should get 3.5 gigs of ram usage with XP why am i limited?
click start -> all programs -> accessories -> system tools -> system information. what does it say in there?
also, you aren't using anything that is using memory like an onboard video card or ramdisk right?
can you take 2Gb out? what does it show then? does it go down to 2Gb or does it say you now have 512Mb?
I have 2 x gt 8800gt for vid cards.
I'm looking at that BIOS now.
That limit will range from 2.XX to 3.XX depending on the devices in your system.
You said you have 2 vid cards right? Try only one.
Take one out and see if that brings you to ~3GB.
Memory becomes unavailable to windows because of devices that use the address space for memory-mapped IO.
from poking around online it seems that this is a common issue with SLI based systems due to the memory mapping that a few people have mentioned above.
in that thread someone posted a pic of the device manager where they show which memory region was set aside for which devices.
Jesus that sucks. i run dual vid cards cuz im a gaming nerd..I over volted my old ram cuz im a Oc nerd..so i buy 4 gigs of fancy new pc3200 expensive ass ram, and get fucked by the vid cards. lol i see a new OS/build comming outa this crap.
On a side note how does ubuntu handle this situation?
if you are a gaming nerd, i'm pretty sure you are stuck with windows.
i've been reading though that vista handles it better to xp if you are willing to make the jump.