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ram issues in 64 bit Windows 7

post #1 of 7
7/26/09 at 5:30pm
Thread Starter 
wasup,


ok so the problem that im having on my 1710, is that on windows 7 64 bit, the ram shows 4gb installed but only 3.25 available. Does anyone know why this is happening?

btw: i am using the current RTM build of Win 7, also when i was using windows 7 RC, it showed the full 4 gb at use, so i dont know whats going on

Specs:
xps m1710
T7600G
4GB

thanks in advance
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post #2 of 7
7/26/09 at 5:33pm
can't tell ya, since I am not using the RTM

Let see if other can confirm this or not. If it is, then RTM is not quite ready ;-)

Moved this to Software General.

cheers ...
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post #3 of 7
7/27/09 at 9:07am
Are you sure it's x64? Maybe the build you had was mislabeled.
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post #4 of 7
7/27/09 at 1:57pm
Thread Starter 
Quote:
Originally Posted by fabarati View Post
Are you sure it's x64? Maybe the build you had was mislabeled.
ya its 64 bit, ive made sure of that numerous times. I never had a problem with this in xp or vista so i dont know why windows 7 is not allowing the full 4 gigs
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post #5 of 7
7/31/09 at 1:19am
It has to do with the M1710's chipset, the Intel 945PM, it cannot address more than the 32-bit RAM limit (which is about 3GB). It's a hardware limitation of the chipset, and nothing can be done about it sadly. This is also why the M1710 can only support up to a maximum of 2x 2GB DDR2-667 SO-DIMM's.

Long story short, it's a hardware limitation, and you're SOL.
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post #6 of 7
7/31/09 at 1:29am
Also, neglected to mention, Vista had a nice little "feature" that reported the full installed memory in system properties (started with Vista SP1 IIRC, both 32-bit and 64-bit versions) but could only use what was physically able to be used (in the case of the M1710, about 3GB).
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post #7 of 7
7/31/09 at 7:28am
Quote:
Originally Posted by Fenuxx View Post
It has to do with the M1710's chipset, the Intel 945PM, it cannot address more than the 32-bit RAM limit (which is about 3GB). It's a hardware limitation of the chipset, and nothing can be done about it sadly. This is also why the M1710 can only support up to a maximum of 2x 2GB DDR2-667 SO-DIMM's.

Long story short, it's a hardware limitation, and you're SOL.
Right, I forgot about that. Happened to my old A8Js. Even argued about this with a few people.
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