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Windows 7: 8gb memory installed only 4 usable. acer aspire laptop


01 Dec 2011   #1

windows 7 64 bit
 
 
8gb memory installed only 4 usable. acer aspire laptop

I have an Acer Aspire 5552G-7641 laptop with 4gb of memory (2x2gb). The max memory supported is 8gb so i put in 2x4gb memory sticks. When I check the system info it says 8gb installed (4 gb usable).

I read alot of forums and it says to change the dram voltage but I have no idea how to do this. The BIOS that comes with this laptop is also very basic and does not allow customization of specific settings.

Any tips or information would be greatly appreciated.

My System SpecsSystem Spec
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01 Dec 2011   #2

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by radmakn212 View Post
I have an Acer Aspire 5552G-7641 laptop with 4gb of memory (2x2gb). The max memory supported is 8gb so i put in 2x4gb memory sticks. When I check the system info it says 8gb installed (4 gb usable).

I read alot of forums and it says to change the dram voltage but I have no idea how to do this. The BIOS that comes with this laptop is also very basic and does not allow customization of specific settings.

Any tips or information would be greatly appreciated.
Type msconfig in search. Make sure the max memory is UNchecked.
My System SpecsSystem Spec
01 Dec 2011   #3

windows 7 64 bit
 
 

yea that is unchecked
My System SpecsSystem Spec
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02 Dec 2011   #4

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by radmakn212 View Post
yea that is unchecked
Can you provide a snip of task manager with the performance tab showing?
My System SpecsSystem Spec
02 Dec 2011   #5

Windows 7 Ultimate x64, & Mac OS X 10.9.2
 
 

You do have a 64bit Os right?

My System SpecsSystem Spec
02 Dec 2011   #6

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

You may have to "jiggle it".

Best practice: between each step below, shut down, unplug the power adapter, remove the battery, and press the power button for 15 seconds or so, then make the next change.

First, remove the new module, restart the computer, make sure all 4GB is recognized. It so, shut down.

Next, use compressed air or some other method to clean out that second RAM slot. Dust, lint, or a strand of hair can make just enough of a gap to affect the contact on all the pins. Then install the new module again and test. Pay attention to how it clicks into the slot, be sure it is firmly seated (without breaking anything). Test.

If that does not work then switch the modules. Put the new module in the old module's slot and test it alone. Does it report all 4GB?

If it does then install the old module in the second slot and test.

Whether any of this works or not, run Memtest86+ - Advanced Memory Diagnostic Tool for at least 3 passes to see if it reports any errors. Set it up before you go to bed and let it run overnight.
My System SpecsSystem Spec
02 Dec 2011   #7

Vista Ultimate X64/ Windows 7 Dual-boot
 
 

Quote   Quote: Originally Posted by badger906 View Post
You do have a 64bit Os right?

We should wait for a reply to this...
My System SpecsSystem Spec
02 Dec 2011   #8

Windows 7 Ultimate x86
 
 

It says so in his system specs I doubt a 32 bit system would recognize all 8GBs anyways. I would go with TVeblen's advice. That excludes any hardware fault. Then we can look around for a better configurable BIOS to play with the voltage.
-DG
My System SpecsSystem Spec
02 Dec 2011   #9

Windows 7 Ultimate x64, & Mac OS X 10.9.2
 
 

Lol I could put anything in my spec doesn't mean its true like the guy who wanted me to fix his computer once and he said he had over clocked it to 9ghz... I was like oh so your a world record holder and have access to liquid nitrogen and a phase cooler.. Lmao

My System SpecsSystem Spec
03 Dec 2011   #10

windows 7 ultimate 64 bit
 
 

Quote   Quote: Originally Posted by SledgeDG View Post
It says so in his system specs I doubt a 32 bit system would recognize all 8GBs anyways. I would go with TVeblen's advice. That excludes any hardware fault. Then we can look around for a better configurable BIOS to play with the voltage.
-DG
A 32 bit wouldn't even make it to 4 gigs
My System SpecsSystem Spec
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 8gb memory installed only 4 usable. acer aspire laptop




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