Why is the maximum memory usage 512?

PLEASE READ. Nov 5 2005 Buy Brand New computer.Nov 2005 -Jan 2007 comcast security No Problems Jan 2007 Verizon security Blue screen by June 2008 August 30 2008 windows XP uninstaled and rein staled every thing completely wiped out Geek Squad comes unistals...

Pentium M 1.5 GHz processor, 598 MHz 512 MB RAM 200 pin Sodimm, DRR Memory. I run XP sp2 and use for surfing, Email and work Productivity. Software: MS Office Sm Business and Mcafee Internet Security. The Task manager shows 100% CPU usage often and this...

dumping me? built new computer got same two sticks of ram in it however the computer keeps blue screening me , reseting and memory dumping on me! i opened task manger and watched the cpu uaage when using stuff and it shoots up to 100% all time not constantley...

ive download a widget to check my ram usage, when i close out of all my programs that are running, its at about 70-80%, anyideas how to free up any memory? (i only have 512 mb)

My Dell Inspiron Laptop has a problem in which the physical memory usage keeps climbing over time until no memory is left. Its normal memory usage when nothing is running is around 23%-25%, then when I open firefox is about 27%, but if I wait a few hours...

i have compaq presario v2000 notebook.my sys config, compaq presario v2000 xp sp2, mobile pentium processor, 256 mb ram 40 gb hard disk space. now i got another 256 mb ddr ram in my hand.so i wanna add memory in my system in 256+256=512 basis.i can open...

Earlier, I had 6 tabs open: http://finance.yahoo.com/news/1-student-debt-crisis-owing-163540505.html http://www.youtube.com/ http://kb.mozillazine.org/Memory_Leak#Virtual_memory https://twitter.com/ http://www.youtube.com/watch?v=E5zWqlcEcAk http://answers...

Putting the finishing touches on a WordPress 3.8.1 site based on Genesis 2, I keep wondering why memory usage has varied so wildly during development. Using the TPC Memory Usage (updated) plugin, I measured swings from ~40MB to almost 60MB RAM for WordPress...

ok i know how to install memory doing ti for years this comp is new i put a gig chip in it and a 512 workwed fine on my old comp and yes its ddr and compatible but for some reason this other comp wont take both under system it says i got 338 mb ram and...