急向各位大神求助！！

happysong21

　　本人用的DELL O755的电脑，最初是1G 内存，后来为了玩RAMOS，断断续续加到了现在的8G内存。XP下显示可用内存为3G，装了Primo Ramdisk并开启不可见内存支持后认出了5052M的高位内存。

　　但是这5052M内存却被奇怪地分成了两部分（大概4032M、960M），所以一直无法使用超4032M的RAMOS XP系统。

　　所以一直浪费了4032Ｍ以外的高位内存，因为即使用Primo Ramdisk能认出所有的高位内存，但如果要使用肯定会跟Firadisk使用的高位内存冲突（我已经试过：启动时蓝屏），因为Primo Ramdisk没有避开Firadisk使用的那部分内存。

　　偶然一次看到Primo Ramdisk网站说明在使用不可见内存时有个选项：保留不可见内存的前边xxxM部分不用，这又让我有了希望。

　　我的问题是：我如何才能知道我用grub4dos所map的firadisk内存盘占用了哪部分内存，从而让Primo Ramdisk避开？

　　以下是我从grub4dos启动时导出的内存情况：

===以下是没有内存盘的：===
EISA Memory BIOS Interface is present
Address Map BIOS Interface is present
Lower memory: 639K, Upper memory (to first chipset hole): 3142654K
[Address Range Descriptor entries immediately follow (values are 64-bit)]
  Usable RAM: Base: 0x0, Length: 0x9FC00
  Reserved: Base: 0xF0000, Length: 0x10000
  Usable RAM: Base: 0x100000, Length: 0xBFCFF800
  Reserved: Base: 0xBFDFF800, Length: 0x54400
  Reserved: Base: 0xBFE53C00, Length: 0x2000
  Reserved: Base: 0xBFE55C00, Length: 0x1AA400
  Reserved: Base: 0xE0000000, Length: 0x10000000
  Reserved: Base: 0xFED00000, Length: 0x400
  Reserved: Base: 0xFED20000, Length: 0x80000
  Reserved: Base: 0xFEC00000, Length: 0x100000
  Reserved: Base: 0xFEE00000, Length: 0x100000
  Reserved: Base: 0xFFB00000, Length: 0x500000
  Usable RAM: Base: 0x100000000, Length: 0xFC000000
  Usable RAM: Base: 0x1FC000000, Length: 0x3C000000

floppies_orig=0, harddrives_orig=2, floppies_curr=0, harddrives_curr=2

Number of ATAPI CD-ROMs: 0

ram_drive=0x7F, rd_base=0x0, rd_size=0x100000000

The int13 hook is off. The drive map table is currently empty.

===以下是有内存盘的：===
EISA Memory BIOS Interface is present
Address Map BIOS Interface is present
Lower memory: 639K, Upper memory (to first chipset hole): 3142654K
[Address Range Descriptor entries immediately follow (values are 64-bit)]
  Usable RAM: Base: 0x0, Length: 0x9FC00
  Reserved: Base: 0xF0000, Length: 0x10000
  Usable RAM: Base: 0x100000, Length: 0xBFCFF800
  Reserved: Base: 0xBFDFF800, Length: 0x54400
  Reserved: Base: 0xBFE53C00, Length: 0x2000
  Reserved: Base: 0xBFE55C00, Length: 0x1AA400
  Reserved: Base: 0xE0000000, Length: 0x10000000
  Reserved: Base: 0xFED00000, Length: 0x400
  Reserved: Base: 0xFED20000, Length: 0x80000
  Reserved: Base: 0xFEC00000, Length: 0x100000
  Reserved: Base: 0xFEE00000, Length: 0x100000
  Reserved: Base: 0xFFB00000, Length: 0x500000
  Usable RAM: Base: 0x100000000, Length: 0xFC000000
  Usable RAM: Base: 0x1FC000000, Length: 0x3C000000

floppies_orig=0, harddrives_orig=2, floppies_curr=0, harddrives_curr=2

Number of ATAPI CD-ROMs: 0

ram_drive=0x7F, rd_base=0x0, rd_size=0x100000000

Fr To Hm Sm To_C _H _S   Start_Sector     Sector_Count   DHR
-- -- -- -- ---- -- -- ---------------- ---------------- ---
81 FF FE 3F 83FF FE 7F 0000000000800078 00000000007DFF88 M=S

　　急求各位大神帮忙，先多谢了！

happysong21

期待诸位达人施以援手！

happysong21

无意间，翻看以前的帖子找到解决办法！
http://bbs.wuyou.net/forum.php?m ... amp;highlight=primo
感谢 star 中尉！