Newsgroup: it.comp.os.win.win9x
Titolo: win 98 e ram

Ho intenzione di comprare un modulo da 512 Mb + i 128 che avevo fanno
640 ... mi hanno detto che win98 non supporta + di 512 mb e che devo
passare a win2000 ... volevo sapere se e` vero, e se esiste una pach o
qualcosa per far funzionare 640 Mb sotto win98
Grazie a tutti
--
By Malese


Subject: Re: WinMe 512Mb Ram e risorse insufficienti.....
Date: Sun, 10 Jun 2001 16:27:12 +0200
Lines: 29
Pamela

 Basta leggere qualche messaggio adietro, ad esempio:
......
[CUT]
Grazie Pamela
ma a questo puto vorrei chiedere un altro paio di cose:
E` un bug conosciuto ... ma soltanto x win 98 ?
Se acquisto win 2000 avrò lo stesso problema ?
La riga che devo aggiungere limita in qualche modo le prestazioni ?
cioe` avere 360 Mb o 1Gb di ram e` la stessa cosa ?
In conclusione mi conviene comprare 512 Mb di
ram se continuo a usare Windows ?
Lo so che sono petulante...
Grazie x avermi sopportato
--
Il malese

 Basta leggere qualche messaggio adietro, ad esempio:
......
[CUT]
Grazie Pamela
ma a questo punto vorrei chiedere un altro paio di cose:


 Lo so che sono petulante...
Direi piuttosto che vuoi essere rassicurato sulle tue scelte.
Per completezza, ti incollo l'articolo della MS KB che tratta del bug
menzionato:
=====================================================
      "Out of Memory" Error Messages with Large Amounts of RAM Installed
----------------------------------------------------------------------------
----
The information in this article applies to:
  a.. Microsoft Windows Millennium Edition
  b.. Microsoft Windows 98 Second Edition
  c.. Microsoft Windows 98
  d.. Microsoft Windows 95
----------------------------------------------------------------------------
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If this article does not describe your hardware-related issue, please see
the following Microsoft Web site to view more articles about hardware:
http://support.microsoft.com/support/windows/topics/hardware/hwddresctr.asp
SYMPTOMS
If a computer that is running any of the versions of Windows that are listed
above contains more than 512 megabytes (for example, 768 megabytes) of
physical memory (RAM), you may experience one or more of the following
symptoms:
  a.. You may be unable to open an MS-DOS session (or command prompt) while
Windows is running. Attempts to do so may generate the following error
message:
    There is not enough memory available to run this program.
    Quit one or more programs, and then try again.
  b.. The computer may stop responding (hang) while Windows is starting, or
halt and display the following error message:
    Insufficient memory to initialize windows. Quit one or more
memory-resident programs or remove unnecessary utilities from your
Config.sys and Autoexec.bat files, and restart your computer.
CAUSE
The Windows 32-bit protected-mode cache driver (Vcache) determines the
maximum cache size based on the amount of RAM that is present when Windows
starts. Vcache then reserves enough memory addresses to permit it to access
a cache of the maximum size so that it can increase the cache to that size
if needed. These addresses are allocated in a range of virtual addresses
from 0xC0000000 through 0xFFFFFFFF (3 to 4 gigabytes) known as the system
arena.
On computers with large amounts of RAM, the maximum cache size can be large
enough that Vcache consumes all of the addresses in the system arena,
leaving no virtual memory addresses available for other functions such as
opening an MS-DOS prompt (creating a new virtual machine).
WORKAROUND
To work around this problem, use one of the following methods:
  a.. Use the MaxFileCache setting in the System.ini file to reduce the
maximum amount of memory that Vcache uses to 512 megabytes (524,288 KB) or
less.
  For additional information about how to use the MaxFileCache setting,
click the article number below to view the article in the Microsoft
Knowledge Base:
    Q108079 32-Bit File Access Maximum Cache Size
  b.. Use the System Configuration utility to limit the amount of memory
that Windows uses to 512 megabytes (MB) or less.
  For additional information about how to use the System Configuration
utility, click the article number below to view the article in the Microsoft
Knowledge Base:
    Q181966 System Configuration Utility Advanced Troubleshooting Settings
  c.. Reduce the amount of memory that is installed in your computer to 512
MB or less.
STATUS
Microsoft has confirmed this to be a problem in the Microsoft products that
are listed at the beginning of this article.
MORE INFORMATION
Vcache is limited internally to a maximum cache size of 800 MB.
This problem may occur more readily with Advanced Graphics Port (AGP) video
adapters because the AGP aperture is also mapped to addresses in the system
arena. For example, if Vcache is using a maximum cache size of 800 MB and an
AGP video adapter has a 128-MB aperture mapped, there is very little address
space remaining for the other system code and data that must occupy this
range of virtual addresses.

Grazie mille Pamela sei stata veramente  molto gentile !
--
By Malese

 By Malese
Mi fa piacere se ti sono stata d'aiuto.
Ciao,
Pamela