Overclock.net › Forums › Components › Memory › Memory Clarification, must read.
New Posts  All Forums:Forum Nav:

Memory Clarification, must read. - Page 2

post #11 of 15
Thread Starter 
Quote:
Originally Posted by The_Manual View Post
Who ever said Physical Addresses in x86 processors were 32bit?

Micro Processors, since the Pentium 3 era have supported 32 bit Virtual Addresses.
However, they do not contain 32 bit Physical addresses. Instead they contain 36 bit Physical addresses, therefore limiting the system to a maximum of 64GB of Physical Memory.

Physical Addresses have never been the problem therefore since the Pentium 3 era, since desktop systems do not require 64GB System Memory to function, even in high end computation.

However, the issue lies with the Virtual Address size of 32 bit, this therefore limits the system to addressing 4GB of Physical Memory (Per application).

A Physical Address larger than the Virtual Address (like we see in this case) means that the computer system could have more Memory than one program could actually access. However, this is useful for running multiple programs simultaneously if you could emulate additional Virtual Addresses to permit the additional Addressing of System Memory.

The system sees Windows as an Individual Program, and therefore allocates the system 4GB of System Memory (as per Virtual Addressing Standards). However, if you could fool the system into thinking Windows was not a singular program, and a multiple program system you could increase the Memory Capacity that can be allocated to it.

Please Note: No application within Windows, even with this "cheat" enabled will be capable of addressing more than 4096MB of System Memory within the Operating system without a Second Layer of Emulation or splitting the executable files into multiple files (or equivalent). Two applications could address 4096MB each however.
I'm gonna add the bottom note to my thread, if that's doesn't bother you
#well
(19 items)
 
Lenovo L530
(8 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 4770k Gigabyte Z87X-UD4H XFX Radeon HD 6950 Corsair CMX8GX3M2A2000C9 
Hard DriveHard DriveOptical DriveCooling
Samsung EVO 840 Hitachi HDS722020ALA330 Generic DVD±RW Burner Noctua NH-D14 
OSMonitorMonitorKeyboard
Windows 8.1 Dell U2711 LG W2453 Ducky DK9008 Overclock.net Edition, Cherry MX B... 
PowerCaseMouseMouse Pad
Corsair TX850 Antec Three Hundred Corsair Raptor M40 QPAD HeatoN M 
AudioAudioAudio
E-MU Tracker|pre Beyerdynamic DT-770 250 Ohm AntLion ModMIc 
CPUGraphicsRAMRAM
Intel Ivy Bridge 3210M Intel HD 4000 Graphics Soldered Corsair Vengeance  
Hard DriveOptical DriveOSMonitor
500GB DVD-+RW Windows 7 Professional 1600x900 
  hide details  
Reply
#well
(19 items)
 
Lenovo L530
(8 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 4770k Gigabyte Z87X-UD4H XFX Radeon HD 6950 Corsair CMX8GX3M2A2000C9 
Hard DriveHard DriveOptical DriveCooling
Samsung EVO 840 Hitachi HDS722020ALA330 Generic DVD±RW Burner Noctua NH-D14 
OSMonitorMonitorKeyboard
Windows 8.1 Dell U2711 LG W2453 Ducky DK9008 Overclock.net Edition, Cherry MX B... 
PowerCaseMouseMouse Pad
Corsair TX850 Antec Three Hundred Corsair Raptor M40 QPAD HeatoN M 
AudioAudioAudio
E-MU Tracker|pre Beyerdynamic DT-770 250 Ohm AntLion ModMIc 
CPUGraphicsRAMRAM
Intel Ivy Bridge 3210M Intel HD 4000 Graphics Soldered Corsair Vengeance  
Hard DriveOptical DriveOSMonitor
500GB DVD-+RW Windows 7 Professional 1600x900 
  hide details  
Reply
post #12 of 15
Performance impact of PAE? Does it affect driver support?
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
post #13 of 15
i'll try once i get more RAM. proabably wont be anytime soon though.
post #14 of 15
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post
Performance impact of PAE? Does it affect driver support?
Not at all
#well
(19 items)
 
Lenovo L530
(8 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 4770k Gigabyte Z87X-UD4H XFX Radeon HD 6950 Corsair CMX8GX3M2A2000C9 
Hard DriveHard DriveOptical DriveCooling
Samsung EVO 840 Hitachi HDS722020ALA330 Generic DVD±RW Burner Noctua NH-D14 
OSMonitorMonitorKeyboard
Windows 8.1 Dell U2711 LG W2453 Ducky DK9008 Overclock.net Edition, Cherry MX B... 
PowerCaseMouseMouse Pad
Corsair TX850 Antec Three Hundred Corsair Raptor M40 QPAD HeatoN M 
AudioAudioAudio
E-MU Tracker|pre Beyerdynamic DT-770 250 Ohm AntLion ModMIc 
CPUGraphicsRAMRAM
Intel Ivy Bridge 3210M Intel HD 4000 Graphics Soldered Corsair Vengeance  
Hard DriveOptical DriveOSMonitor
500GB DVD-+RW Windows 7 Professional 1600x900 
  hide details  
Reply
#well
(19 items)
 
Lenovo L530
(8 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 4770k Gigabyte Z87X-UD4H XFX Radeon HD 6950 Corsair CMX8GX3M2A2000C9 
Hard DriveHard DriveOptical DriveCooling
Samsung EVO 840 Hitachi HDS722020ALA330 Generic DVD±RW Burner Noctua NH-D14 
OSMonitorMonitorKeyboard
Windows 8.1 Dell U2711 LG W2453 Ducky DK9008 Overclock.net Edition, Cherry MX B... 
PowerCaseMouseMouse Pad
Corsair TX850 Antec Three Hundred Corsair Raptor M40 QPAD HeatoN M 
AudioAudioAudio
E-MU Tracker|pre Beyerdynamic DT-770 250 Ohm AntLion ModMIc 
CPUGraphicsRAMRAM
Intel Ivy Bridge 3210M Intel HD 4000 Graphics Soldered Corsair Vengeance  
Hard DriveOptical DriveOSMonitor
500GB DVD-+RW Windows 7 Professional 1600x900 
  hide details  
Reply
post #15 of 15
Quote:
Originally Posted by gonX View Post
I've yet to see a single every-day app/game attempt to use much more than 2-3GB of RAM, though.
In Vista x64, Kaspersky AV will use all 4gb of my ram in my comprehensive scan. It really sucks cause I forget its on, then my sidebar monitor says 99% of ram full. Also, Nero will cache all the files to ram if I'm burning something very large like a dvd, causing nearly 100% ram utilization.
Diet Coke
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8500 @4.03ghz DFI P45-T2RS Plus HD 4870 6GB 
Hard DriveOSMonitorPower
3x74g WD Raptor Raid 0 W7 x64 24" LCD OCZ 700w 
CaseMouse
Antec 900 G5 
  hide details  
Reply
Diet Coke
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8500 @4.03ghz DFI P45-T2RS Plus HD 4870 6GB 
Hard DriveOSMonitorPower
3x74g WD Raptor Raid 0 W7 x64 24" LCD OCZ 700w 
CaseMouse
Antec 900 G5 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Memory
Overclock.net › Forums › Components › Memory › Memory Clarification, must read.