Windows 7 show 3 GB RAM Usage

Abdul Jalil Abou Alzahab
Abdul Jalil Abou Alzahab used Ask the Experts™
on
Dear All,
I have HP Laptop Pavilion dv2000, and 4 GB RAM, I had Microsoft Windows Vista 64 bit and it was able to see 4 GB of RAM, I install Windows 7 Beta 64 bit, also everything was fine till I format and install Windows 7 RC 64 bit edition and found in system proprties that Memory 4 GB (3GB Usable), I did my research and some guys advise to check Memory Mapping in BIOS, but I don't have this option, and it was working fine before, I can't understand what happend .

Please advise if you have any recomendation regarding my issue.
Best Regards
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Commented:
you need to use task manager to actually see what memory you have not system
its wierd though as windows 7 is an imminent release.
well maybe the rc is not going to be the actual release then lol

Author

Commented:
It show only 3 GB, it's very starnge
Capture-Task-Manager.JPG
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Commented:
Did you see 4GB with Vista with SP1? That had some "fake" display in system properties to show 4GB, but addressing less.

Even with 64bit OS your Motherboard and/or drivers may require to be addressed in the 4GB range. Often you do not have 4GB useable. However, 3GB is too less, it should be about 3.5 GB, depending on the hardware and BIOS capabilities.

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Author

Commented:
Yes it was 4 GB in Windows Vista with SP1 and in Windows 7 Bets and both was 63 bit edition, in BIOS it show me that I have only 3GB, I'm really confused.

Author

Commented:
sorry Both 64 bit edition not 63 :)
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Commented:
Looks like you are lost. If BIOS shows 3GB, only that much is addressable, for hardware reasons.
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Commented:
You should think about throwing the laptop into trash. You already lost a bit :-)

Author

Commented:
sorry but I'm not lost, I explaine my setuation, I have 4 GB of RAM, but only 3GB is usalble based on my snapshoot, I check BIOS and I found only 3 GB (Before it was 4GB).

Author

Commented:
sorry but what u sent is not a solution, if you don't have valuble command, please don't replay more.
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Commented:
Sorry, if you do not tell us everything related, we can not provide a solution.

If you use the same tools for measurement - in both cases BIOS - than you have a hardware problem. If you compare Vista system properties with BIOS, you are comparing apples and bananans.

Installation of Windows 7 cannot reduce your memory shown in BIOS.

 

Author

Commented:
I know this information, but if you notic, in Snapshoot it show 4 GB but usabl only 3 GB and I already said that it was working before. maybe it's hardware issue but sorry to say that I don't like ur way to answer and help, I'm not beginer to talk with me like that.
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Commented:
I dislike your way to answer and ylour use of messaging slang like ur. Respect that I cannot see you, and I do not know anything of your experience.

To repel help offered is not polite at all. I will refrain from monitoring this question anymore. It's MY spare time you waste by posting flames instead of concentrating on the subject.

Author

Commented:
You didn't try to help, first you said that I'm lost, then throw the laptop to trash, and finaly Mockery...
I post qustions before and I answerd qustion before but no talk with me in your way.

anyway we should finish this & respect this site, Thanks for help and advices and if you don't need to help anymore it's ur choice.

I hope to find another expert can help on this issue.

Regards
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Commented:
Now we get to the point. You misunderstood my posts.

If you tell us "I check BIOS and I found only 3 GB (Before it was 4GB)", that clearly says "my memory modules are only partitially recognised now". If you are that experienced, you should know. This has nothing to do with Windows Vista or 7.

"You should think about throwing the laptop into trash. You already lost a bit :-)"
has an smiley at the end, marking it as humorous note. It is referring to the 63 vs. 64 bit.
Of course trashing it is NO solution.

Commented:
are all of your rams the same brand? maybe windows 7 cannot recognize one of them

Author

Commented:
Hello Fanman,
Yes from the same brand...
IT Regional Manager - UK
Commented:
can you try using/creating an Ultimate BootCD from here - http://www.ultimatebootcd.com/ and use this to boot your system and run some memory diagnostics, this will tell if the SYSTEM/BIOS sees the 4GB and that all the chips work.  There are about 7 different test tools, and its on hell of  a disk for testing everything else.

if the tests come back fine and it recognises the 4GB ok, then the issue lies with Windows 7.  There maybe a fix already out (don't hold your breath), or perhaps a setting to be applied, such as the one used in the Boot.ini by XP when you had more than 3GB RAM loaded.

Author

Commented:
Thanks

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