|Windows 7 versions are primarily updated versions of the Vista versions - they have many things that are identical to the same thing in Vista, but there may be some of the same things that are slightly different.|
In the Resource Monitor in 32 bit Vista Home Premium, updated with SP2 updates, I do NOT see a "memory in use" total anywhere - for that matter, I do NOT see a "memory in use" anywhere in it.
It DOES show xx% Used Physical Memory on the Memory line - that is directly related to the amount of physical memory your computer is actually using, and it can change "on tne fly".
It sounds like what I see when I click on the down arrowhead on the right end of the Memory line is the same or very similar to what you see.
" The other point is that you say that when your computer is idling it is using about 30% ( of 3GB ). My laptop is using 30% (of 8GB )in idle. In other words I am using approx. 3X the memory !!"
"A few days ago I only had a total of 4GB installed ! I never used to come very close to using 4GB."
My Vista Home Premium, updated with SP2 updartes, is the 32 bit version - your Windows 7 is a 64 bit version.
- 64 bit operating systems always use more memory overall than 32 bit operating systems do to do the same things.
That's shown here...
- depending on which Windows 7 version you have, there may be more programs that are built into the operating system that are loading and are using memory - e.g. Ultimate probably loads more things than Premium does; Premium probably loads more things than Basic does.
- when you increase the amount of ram, the priorities of at least some programs will change regarding how much memory they want Windows to provide them with, such that they use more memory than they do when you have less ram installed.
"Also, the memory usage keeps going up throughout the day even though I am not running any applications."
There are always programs running whether you have loaded them yourself or not - they aren't necessarily using cpu time, but they do have memory allocated to them, and that can change "on the fly".
Also see response 21 starting at
"NOTE that when you first start up the computer on a particular day,..."
Programs may not necessarily check for updates when the desktop first loads, or they may check for those several times in a day, every so often. There may also be programs that are intermittently active for other reasons. All those programs run in the background without any input from you.
On the other hand, it is NOT normal for the xx% Used Physical Memory to go up and stay up for any significant amount of time, as in it never decreases, no matter how long you wait, assuming you're waiting a reasonable amount of time.
If you DO get that situation, assuming your ram tests fine and the settings in the bios for it are compatible with it, examine the info in Task Manager - Processes, or in the drop down list for the Memory line in the Resource Monitor, to see which programs are "pigging out" on memory use, and copy down the program name(s) and post them here.
"CPU usage has always remained very low. Currently 3 - 10 % when at idle."
That's sounds okay.
You haven't mentioned the Disk (hard drive) usage percentage since you had 8gb of ram installed - is it still going to 100% sometimes, or has that problem gone away ?
"Just so I understand, When I burn the .iso ( windiag.iso ) to a cd will it be then also be bootable ?"
Yes, if you followed the proper procedure, and if the burning software you used can do that. As I said above, in effect, I have no idea whether the burning software that's built into Windows 7 can do that.
"I believe the memory test you mentioned only tests up to 4GB of RAM. Should I use it anyways ?"
When I suggested that, you had 4gb of ram. You could run the Windows memory diagnostics but it will only test the first 4gb of ram detected by the mboard.
You can test more than 4gb of ram, preferably with the full set of the available tests, with the freeware
- memtest86 , version 3.4 or lower (version 3.5 has bugs that prevent you from testing more than 4gb of ram properly). However, it produces false errors in certain individual tests for some systems that have AMD main chipsets, or that use some AMD cpus.
- memtest86+ , which is NOT made by the same guy - it has a bug that causes false errors with some mboards unless you DISABLE Legacy USB or similar (USB keyboard, USB mouse, etc.) in the bios Setup BEFORE you run the tests.
If a ram diagnostics set of tests DOES detect ram errors, you DO have a ram problem - in almost all cases there is nothing wrong with the ram modules - something else is wrong - the most common reason is the ram has a poor connection in it's slot(s), or it's NOT 100% compatible with using it in your mboard, or it's NOT 100% compatible with using it along with other modules if any are different, or it IS all compatible but the bios has at least one setting for it set wrong.
If it were actual "bad" ram, you would have problems with it starting when it was first installed (assuming it's ram that is actually compatible with using it in your mboard and using it along with other modules if any are different, and it has a good connection in the ram slot(s) ) - otherwise it's extremely unlikely that ram would go "bad" after that, unless it's been damaged by some external event.
"I re-ran the Windows Experience Index assessment."
Had you already run it after re-installing Windows 7 ? If no, did the rating improve ?
I installed 32 bit Vista Home Premium from a Microsoft OEM DVD (it costs less because you have to provide your own support that Microsoft normally provides) - after I had installed all the necessary drivers for the system, when I ran that the rating increased quite a bit to 5.3, and that's with a middle range video card.
"In Windows 7 there are a host of error or problem reports that can be generated. There is something called a " system health report " that deals with system health and performance. Would that be helpful."
Click on anything you think may identify problems.
As I said above....
"Also on that second resulting screen - in Vista that's titled Rate and improve your computer's performance ......
At lower left, click on Problem reports and solutions to see if it's lists anything."
On my Vista installation the only thing it finds is I have installed Partition Magic 8.0 and it's known to NOT be 100% compatible with Vista.
"I installed CPU-Z. It is giving the data I need. However, I forget how to get access to the bios to check the numbers. You access the bios during startup I believe."
"It is giving the data I need."
CPU-Z can read the data on the SPD chip on each of the modules. It may or may not also show you the settings the bios is using for ALL the ram installed - the timing numbers and the ram voltage.
If your installed ram modules are NOT all identical, the bios is supposed to automatically set all the ram to the least specs of all the modules - the highest timing number at each of the 4 positions (the slowest setting), or higher, and the lowest ram voltage, but sometimes the bios doesn't get those right by default.
"You access the bios during startup I believe."
You usually see a line while booting, very early, "Press xxx (a key) for Setup" or similar - if you see that, you must press the stated key while that line is still on the screen. If you don't see that, consult the User's or Owner's manual for your Sony model - the key you need to press is always in there. Some brands don't call the bios Setup by that name.
Brand name bios versions often deliberately have less info in them and things you can change than bios versions for retail desktop mboards.
Usually when we search for info about what is actually seen in the bios for a brand name bios version, either there is no info to be found, or there is info but not everything that is seen in the bios is shown, so usually you're on your own interpreting what you're seeing, unless you can consult with someone else who has the same brand name model, or has a same brand name model that has a bios that is the same or very similar.
The mboard manuals for retail desktop mboards usually show you everything that is seen in the bios, at least for the original bios version, and often also show you what the default settings are.