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Windows only seeing 3gb
- Thread starter shr3k
- Start date
No it isnt, new bios, allows 4gb
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PAE is a red herring here. The memory extension parts of PAE were disabled in XP as of (I think) SP1 because turning it on broke too many things. It's only used for security purposes now.
What's happening is that the motherboard BIOS is not remapping the 4GB of memory into 64-bit address space. It's stuck in 32-bit space which means XP64 is effectively forced to work like 32-bit XP. If there's no remap option in the BIOS then there's nothing you can do about it
What's happening is that the motherboard BIOS is not remapping the 4GB of memory into 64-bit address space. It's stuck in 32-bit space which means XP64 is effectively forced to work like 32-bit XP. If there's no remap option in the BIOS then there's nothing you can do about it
Did you try resetting/clearing your cmos after you updated the bios? worth a try. Might be some sort of conflict and the new bios is not functioning correctly.
Follow usual procedures, turn off machine, disconnect power cord, take out battery, perform jumper action if needed for reset (check mobo manual for details and time period). Put battery back after a few mins, connect power cord, redo/check bios settings etc.
Follow usual procedures, turn off machine, disconnect power cord, take out battery, perform jumper action if needed for reset (check mobo manual for details and time period). Put battery back after a few mins, connect power cord, redo/check bios settings etc.
LOL
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Vista will have the same problem. This isn't a Windows issue, it's purely the motherboard's BIOS. If the BIOS doesn't map memory correctly there's nothing Windows can do to fix that.vista 64bit forthewin
my extra 2gig arrived this morning and im having the same issue, I have 4gig iin total now but its only showing up as 2.86!
I have vista ultimate 64bit
I have this mobo, it says it supports 4 gig, any ideas?
http://www.asrock.com/mb/overview.asp?Model=939Dual-SATA2&s=939
I have vista ultimate 64bit
I have this mobo, it says it supports 4 gig, any ideas?
http://www.asrock.com/mb/overview.asp?Model=939Dual-SATA2&s=939
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Well after trying every Bios memory setting I fixed it. I dont know if this will help the OP but the setting i changed was 'Memory Hole'. By default its disabled. when I enable it magically my 4gig appears, disable it and its back to 2.86
I dont know why this setting makes a difference, I read up on it and it doesnt sound even slightly related.
Memory Hole or Memory Hole At 15 MB Add: Creates a memory hole between 15M and 16M in order to have the PC compatible with some old ISA video boards using this memory area. As this options results in a loss of 1 MB of memory, we suggest you keep it disabled.
I dont know why this setting makes a difference, I read up on it and it doesnt sound even slightly related.
Memory Hole or Memory Hole At 15 MB Add: Creates a memory hole between 15M and 16M in order to have the PC compatible with some old ISA video boards using this memory area. As this options results in a loss of 1 MB of memory, we suggest you keep it disabled.