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Windows only shows 2.5 gigs of ram

Forum Motherboards & Memory : Memory - Windows only shows 2.5 gigs of ram

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D_The_Third   10-08-2008 at 10:29:10 PM

I have win xp(32) I just installed 2x1gb and 2x512mb. I had to shuffle the ram a bit to make windows load but windows only says i have 2.5 gigs of ram.
I checked my Bios and it says 3* GB detected 2.5* useable.
Since my bios detects it i shouldnt need to flash it, it has to be windows right?

I heard 4gb wont work in 32bit land but cant 32 bit recognize 3gb?
Anyone ever have this problem?

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Shadow703793   10-08-2008 at 10:40:20 PM
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Please list full specs. Do you have Integrated Video?

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 Reply to Shadow703793
chookman   10-09-2008 at 03:44:19 AM
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Ill be on what shadow is thinking ... you have intergrated video and its set itself to use 512mb of your ram

------------------------------ "This thread made me strap on my lolerskates and head for my roflcopter."
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geotech   10-09-2008 at 04:02:02 AM
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I'll bet he has a gig on his video ram.

Reply to geotech
D_The_Third   10-09-2008 at 04:15:57 AM
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I do have a intergrated vid card but its turned off. I have a 8500 with 512mb.

Before I put in 2gigs(I had 1.5) it showed as 1.5.

Im wondering if its the ram cause it was a cheap dual channel but I have to put the sticks on seperate channels or windows wont boot.

I have a Athlon 3200xp, A8n-sli premium, 2x512mb 333 oced to 400 and 2x1gb 400.

Reply to D_The_Third
Shadow703793   10-09-2008 at 04:39:54 AM
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Download CPUZ and Check under "Memory". How much dose that show?


Message edited by Shadow703793 on 10-09-2008 at 04:40:06 AM
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bobbknight   10-09-2008 at 04:51:18 AM
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Full system specs would help in allowing us to answer you question.

Reply to bobbknight
buzznut   10-09-2008 at 05:06:48 AM
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i'm wondering if its possible the integrated video is still enabled with the 8500 installed.
prolly would be with the 8200 nvidia chipset, wouldn't it?
Certainly sounds like 512mb is shared with onboard video. need to know what mobo.

Reply to buzznut
hester7   10-09-2008 at 05:57:22 AM
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msinfo32 can provide you with a memory map. There you can see which devices that eats up that much address space.

Reply to hester7
D_The_Third   10-09-2008 at 10:35:28 PM
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I tried the CPu-z and it shows 3gb. But on the 4th slot its showing up as a pc2700 while the rest are at 3200. Now its naturaly a 2700 but I oced it in my bios to run my ram at ddr400 which my other pc2700 is running at.

I have the A8n sli-premium (4gb is the max it can run).

Now that I look at it it doesnt have Onboard video. Sorry I usualy buy Nforce boards(dont know why) and im use to it coming with it. Sorry about that.

Im going to try to run it at 333 to see maybe the ram in the 4th slot is to old to oc anymore. Figured it would just crash if it couldnt.

Reply to D_The_Third
shyamo95   10-13-2008 at 11:01:33 PM
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I got it. Right click on my computer and click on properties. then go to the advanced tab on top and click on settings under start up and recovery. click edit under system startup and a notepad should open up. Go to the line that look like this:

multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Home Edition" /noexecute=optin /fastdetect /maxmem=320 /numproc=1

(THIS IS MINE WHEN I FIXED MY PROBLEM. YOURS MIGHT LOOK DIFFERENT)

read it and find MAXMEM=2560. CHANGE 2560 TO 3072. REBOOT. THIS SHOULD WORK!




THERE SHOULD BE A SPACE BETWEEN 3072 and /. like this: maxmem=3072 /

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