Anyone familiar with this?
 
So I went into System info (In Vista Ultimate 64) to just check how everything is going and I noticed this for my RAM:  
 
Total Physical Memory:  8GB
Installed Physical Memory:  4GB
Available Physical Memory: 6.5GB  
 
Can anyone explain why the installed phys. memory is showing 4GB?  
 
I went into BIOS and all sticks are showing up, Welcome Screen is showing 8, system monitor Gadget is also showing 8gb.  Is this just a quirk with Vista 64 or SP1?  
 
TIA!  
 
XPS600
Dual Boot Windows Vista Ultimate 64 SP1/ XP ME SP3
Pentium 965EE OC 4.26GHz
8 GB DDR2-667 SDRAM

 
Pentium D.... ouch
 
perhaps a bios setting? go into task manager (Ctrl + Shift + Escape) and in the performance tab look at Physical Memory and look for the total - see what that says.

Probably something to do with the recent patch the made show 4G even on 32bit. To many noobs RMAing because they didnt see their 4G on 32bit. My guess is that patch is showing you 4 when infact your running it all.

Yea, I was leaning towards that conclusion as well.  Thanks for the responses guys.
 
"Pentium D.... ouch"
 
Well.. when I bought the rig, it was a screaming processor... to be honest with you, it's plenty fast for me at the time and it's not half bad OC'd, the rest of my rig is maxed out about as far as it can take it.  
 
Since having a second little one join our family, I haven't played a game in about a year, and have only been able to use it for Outlook, Word, Excel,  Photoshop, and Elements...
 
Think my wife will buy it when I say:  "Well... our old Dell just can't handle MS Outlook anymore hon... I'll have to build a new rig"   ?
 
 

My Vista 64 system information displays the same information.  Not sure why the memory is displayed like this.
Control Panel>system shows 8GBs RAM.
 
 

 
The only screaming would be the cooling, and performance wasnt hot concidering what AMD had at the time, and even a mere E6300 around the same time could knock it at 1.86ghz.

running neck and neck with the FX-60 at the time (at 2.6GHz).
 
Most of the benchmarks had the 965 in line with the E6300 (give or take).
 
It is hot, but heck, keeps me warm in the winter.    
 
It was the best I could do with the proprietary Dell mobo and case...  
 
Will be upgrading eventually though.. no more Dell, that's for sure.  Already putting together the plans for next rig.
 
 
 
 

Well Badge, at least I now know it's not just isolated to me.  My gut is telling me that it's non issue, just a bug with Vista and/or SP1.  I'm still going to continue research for bit.  Thanks for the reply, put's me at rest a bit.

 
I believe vista now has a patch to show that your system has the full amount of ram even on a 32-bit system - had the full 4gb show up in vista 32 bit on a system the other day after updates - we all know that cant be true when it was using a 256mb video card etc - perhaps your x64 install doesnt have the right bios or bios setting to allow 4gb+ addressing and windows it telling you it is because of the patch?