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Possible Duplicate:
Windows XP and RAM 3.5GB+
Installed RAM : 4 GB but 2.96GB Usable......why?
I have a Macbook Pro with 4GB of installed RAM. I have installed Windows 7 on it which shows the usable memory as 2.74GB. Why is this? Don't tell me the 32 bit story; I program for a living. The maximum addressible memory on a 32 bit system is 4 GB not 3 GB.
Need proof? MSDN: Memory Limits for Windows Releases
3"Why isn't my top speed higher than 50mph when I tow my boat behind my VW Bug? Don't tell me the horsepower story; I drive a cab for a living." – Shinrai – 2011-03-02T20:42:27.767
Already beaten to death topic, Look at http://superuser.com/questions/50138 http://superuser.com/questions/27086/windows-xp-and-ram-3-5gb http://superuser.com/questions/7964/where-did-the-other-8-gb-of-ram-go http://superuser.com/questions/17827/using-3-gb-ram-in-vista-windows732-bit http://superuser.com/questions/54056/why-is-usable-ram-less-than-total-ram http://superuser.com/questions/27006/how-to-check-ram-size-without-looking-at-motherboard
– Sathyajith Bhat – 2011-03-03T06:16:14.197