Sign in with
Sign up | Sign in
Your question

Only 4gb Usable out of 8gb Memory in Windows 7

Last response: in Memory
Share
June 19, 2012 6:53:07 PM

I have an HP lap top DV8T with 8GB of RAM installed. The BIOS & System show 8GB installed but only 4GB usable. I am running Windows 7 Pro, 64 bit version. I've tried switching the memory stricks around with no success. Need help

Big Daddy Cheese.
a c 146 } Memory
a b $ Windows 7
a b α HP
June 19, 2012 7:04:36 PM

Oh, its laptop.

Did u add some of the RAM latter?
m
0
l
Related resources
June 20, 2012 1:12:54 PM

No I did not add some of the RAM later
m
0
l
June 20, 2012 1:38:40 PM

Is there an option in the bios for "memory remapping" or memory hole?
m
0
l
a b } Memory
a b $ Windows 7
June 20, 2012 2:13:59 PM

Look in your manual, under what is available in bios.
Laptops have very limited User changable bios options.
I looked on HP web site and did not see.

What I would do is view your Bios and look for antything that is connected to memory.
.. If nothing found, EXIT without saving.

I have a feeling you have either a defective Module, or one is not fully seated.
I would:
Remove both sticks.
Install one stick in primary memory slot.
Power on and check, should boot to windows and show 4 gigs installed.
.. Note you can down load Prime 95 and test this first stick. Or download an iso for Memtest86, create a bootable memtest CD. Insert CD and boot to CD, run at least for 1 -> 2 hours. - Checks A OK, then
.. Remove this stick and stick in 2nd module and repeat above.
Both sticks check OK, then
re-install both sticks, and repeat test.

.... You could try remove and re-inset memory modules and test, if that fixes, then problem was connection, IF NOT then do the single module check.

SEE: http://h10032.www1.hp.com/ctg/Manual/c01917900.pdf
Note there are several versions of your laptop, but quessing memory remove/replace is identical.
m
0
l
!