upgrade to 64-bit RAM of 2 GB installed (1.74 GB usable) to 4 GB installed (always 1.74 GB usable)

I recently replaced 2 sticks of 1 GB RAM in both slots of my HP G56-127NR Notebook PC with two new sticks of 2 GB of RAM in a system Windows 7 Home Premium 64 - bit, which was initially sold as expandable to 16 GB of RAM.  Each test diagnosis, I was able to find and run indicated that all 4 GB are good.  Information system on the computer indicates 4 GB has been installed, but on system properties, it displays "4.00 GB installed (1.74 GB usable).  I checked the BIOS and have no doubt that the latest available version is installed.  Everything seems to work fine except that he has not taken any speed and when you monitor the memory usage with Task Manager or resource monitor it shows quite clearly that the new memory is not used even if it is seen.  Resource monitor seems to indicate that he was caught for the material.  I have not changed any hardware (with the exception of the memory sticks) associated with this computer.  HP dodge the whole issue because they say it is beyond their life expectancy of support for this device?

PML...

First of all, thank you for your response to my problem.  It (your answer) is very comprehensive and indicates you have given serious thought to my problem and did considerable work on my behalf.  I am deeply grateful.

Then, I'm happy to announce that I came across a solution and my problem is now solved.  Here's what I did for the real "fix". (I tried and did a lot of other things too numerous to list here and in fact worthless because they did not work)-

1. I removed a barrette 2 GB two sticks that I bought to replace the two sticks of 1 GB supplied with the machine.  I was curious about whether it should start and he did it without any problem.  Once it has started, I checked the page system properties of the icon of the computer on the desk.  He then read 2,00 GB (1.74 GB usable), reading same exact I received on the two sticks of 1 GB before I replaced the and the same reading, also usable as, I received when I installed two sticks of 2 GB (what brought the question initially posed here).

2. then, I inserted one of the old 1 GB sticks into the empty space next to the slot which is today one of the two new 2 GB sticks. When I started, the 3.00 GB (2, 74 GB usable) read system properties page.  AHA, installed now was correct and the usable increased accordingly.

3. Finally, I pulled the one 1 GB stand out and replaced with the new second key of 2 GB.  When I started SHAZZAM, 4,00 (3.74 GB usable) GB read system properties page.

Resource Watch monitor now reserved for hardware dropped now 2.00 GB of memory (or else, is much, much lower than he was while the problem exists).

It's almost as if I launched or something in a pot and got to work.  Go figure?

As for some of your specific points-

4. I had satisfactory experience with Crucial memory so this is where I went in the beginning and I found their analysis tool are excellent and they virtually guaranteed that what they sent me could / should be correct (they are DDR3).

5. I ran each diagnostic test, that I could find on my machine starting with diagnostic tools in the BIOS.  Everything always showed equally good 4GBs.

Again, it is really cool to have experts like you PML, to monitor the forums/boards/community/whatever, to come to the rescue of those of us who do not have the necessary expertise.  As part of my little research on this problem, I came across a ton of entries, over several years and in many places of tech under headings of RAM can be used being significantly less than the RAM that is installed.  People came to the top with all kinds of things to look at and try, but I can never remember seen a suggestion to try something like what I did fix successfully what I was able to fix.  I hope that it might work for someone else too.

thosdelaney

Tags: Windows

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