Win 7 shows only 2GB available memory

[lfforte]

I have 4GB of DDR3 memory installed but the computer shows 1.99Gb available memory.
Any suggestions? I'm running Win 7 Pro 64-bit, Asus P7P55D-E Pro and G.SKill ripjaws PC1600

 

[The_Prophecy]

Please see number 8 in this thread. Post back if neither fix works for you.

 

[lfforte]

Please see number 8 in this thread. Post back if neither fix works for you.

Trued that, neither works.

 

[The_Prophecy]

If you enter your System properties window on the "Installed memory (RAM)" line, does it say "4.0 GB (2.00GB available)"? Or does it say "2.0 GB"?

 

[lfforte]

It says 4GB installed.

 

[lfforte]

I think the problem might be with the BIOS, but what?

 

[The_Prophecy]

And you did actually make sure that underneath the Installed Memory line, the System Type did show "64-Bit Operating System", correct?

Sounds like a dumb question, I know, but you would be surprised at how many people miss this, even when they expected 64 bit Windows 7 to be installed.

What does Task Manger have to say about this? Check the Performance tab and under Physical Memory, note the number on the Total, Cached, and Available lines.

I think the problem might be with the BIOS, but what?

That's what I told you to check for earlier from number 8 in the other thread. Memory remapping being disabled is quite often the cause of this issue.

The Memory Remap feature can be found in the BIOS under the Advanced section, then enter the menu called Uncore Configuration. Set "Memory Remap Feature" to Enabled. Save the BIOS settings and exit by hitting F10.

 

[davcon]

I would check my memory settings in bios and make sure everything is as it should be.
If it all checks out then i would say it's a windows7 setting.
What cpu do you have?

 

[lfforte]

intel i5-750
Yes, memory remap is enabled so that is not the problem. and it is 64bit

 

[lfforte]

In BIOS in the Main tab and system config it states that 2 GB are installed. Windows says 4GB installed. What BIOS setting would I need to change?

 

[lfforte]

Could it have to do with the memory slot in which the RAM stick is installed. I installed it according to the MOB manual

 

[The_Prophecy]

On the 1156 socket, the ram should be installed in the slot furthest from the CPU, skip the next closest slot, then install in the one after that.

Edit: Found a pic of the board. Make sure the ram is installed in the 2 blue ram slots seen in the image.

 

[lfforte]

Yes, I have two memory sticks in the two blue slots.
I have no clue! The ram is G.skill DDR3 PC-1600.

 

[WR2]

the computer shows 1.99Gb available memory.

Exactly what is showing "1.99Gb available memory".
Is there any other data available where you see that amount reported?

 

[FALC0N]

I have 4GB of DDR3 memory installed but the computer shows 1.99Gb available memory.
Any suggestions? I'm running Win 7 Pro 64-bit, Asus P7P55D-E Pro and G.SKill ripjaws PC1600

This is not symptomatic of remapping or 32/64 bit issues. It would likely be showing more than 1.99GB.

More background on the system could be important. New build? Older build with ram upgrade? Is the ram showing in the bios? ETC....

I suspect 2 problems:

1) Run MSCONFIG. In the boot menu there is a option to limit memory to a user configurable value. Make sure its not a software/OS limit.

2) Core I3/I5/I7 often have missing memory as a result of bent cpu pins. Remove the CPU and check for bent pins.

i3/i5/i7 'Missing' Memory
If you have 'X' amount of memory installed, and either the BIOS, or Windoze is only showing 'Y' amount available, the very first thing to do is: pull your CPU, get a flashlight & magnifying glass, and check your socket for bent or distorted pins:
http://img210.imageshack.us/img210/3333/bentpinsall.jpg
Nineteen times out of twenty, you will find 'em! Excellent pictorial guide to installation/examination from Intel.
...if the pins are not too badly mangled, they can often be 'teased' back into place, using:
a jeweler's tweezer (most large hobby shops)
a jeweler's screwdriver (any dollar store)
a dental pick/tool (often found at dollar stores or hardware store counters)
or
a 'pin-vise' with a sewing needle mounted in it (a 'pin-vise' is a little thing the size and shape of a kid's crayon, that has a tiny chuck at one end, much like a drill chuck - they are used to drill ultra-fine holes in small work, and can be found, again, at any large hobby-shop or hardware store...)
...just takes a steady hand, and a bunch of patience [:bilbat]

bilbat

 

[lfforte]

Windows shows 4.0 GB installed (physical memory). If windows shows the 4 GB then I suspect the CPU pins are not bent. I was very careful when installing the CPU.

Bios shows 2.0 GB

 

[FALC0N]

Windows shows 4.0 GB installed (physical memory). If windows shows the 4 GB then I suspect the CPU pins are not bent. I was very careful when installing the CPU.

Bios shows 2.0 GB

The symptoms you just described sound more like bent pins now than before. Suit yourself.

 

[lfforte]

OK I will check the CPU

 

[lfforte]

I dont see any bent CPU pins. Oh Well

 

[lfforte]

I'm surprised no one suggested checking for proper seating of the memory stick.
I took aout the CPU and then had a hell of a time putting the heat sink back on.
I simply reseated the memory sticks and now the BIOS shows 4 GB usable memory.

 

[Dark Lord of Tech]

cool glad you got it figured out!

 

[davcon]

Geez that new Asus dimm system works good eh!

 

[FALC0N]

I'm surprised no one suggested checking for proper seating of the memory stick.
I took aout the CPU and then had a hell of a time putting the heat sink back on.
I simply reseated the memory sticks and now the BIOS shows 4 GB usable memory.

This is my bad. I assumed you had already done this. I was fairly sure it was the pins, but I would have done everything else first since taking off the heatsink is not easy. I wrote that out in my post originally and then took it out because it seemed too long winded.

I should have been more precise. I just made more work for you in the end. Sorry.

 

[ricky_critic]

The reduction in available system memory depends on the configuration of the following:

The devices that are installed in the computer and the memory that is reserved by those devices
The ability of the motherboard to handle memory
The System BIOS version and settings
The version of Windows 7 that is installed
Other system settings.

 

[jitpublisher]

This is my bad. I assumed you had already done this. I was fairly sure it was the pins, but I would have done everything else first since taking off the heatsink is not easy. I wrote that out in my post originally and then took it out because it seemed too long winded.

I should have been more precise. I just made more work for you in the end. Sorry.

LOL, I wouldn't worry about it FALCON. As I was reading this I was thinking along the same lines as you, I had figured anyone with a memory problem would have already tried re-seating it.