home *** CD-ROM | disk | FTP | other *** search
- DOCUMENT:Q103243 26-AUG-1993 [W_NT]
- TITLE :Memory Problems in Dell Computers
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- --------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system version 3.1
- - Microsoft Windows NT Advanced Server version 3.1
- --------------------------------------------------------------------
-
- SUMMARY
- =======
-
- Various problems have been noticed with Windows NT and some Dell
- computers during installation. These problems usually take the form of
- 7f blue screen trap occurring during setup (see below).
-
- ==============================================================
- STOP: 0x0000007f (0x0000000d,0x00000000,0x00000000,0x00000000)
- UNEXPECTED_KERNEL_MODE_TRAP
-
- eax=ffdff13c ebx=801ac718 ecx=ffffffff edx=80197e70 esi=e1000000 edi=00000001
- eip=801645ca esp=801ac388 ebp=801ac3fc p4-0300 nv up ei ng nz na po nc
- cr0=8005003d cr2=00000000 cr3=00030000 cr4=00000000 irql:1 efl=801ac3e0
- gdtr=80036000 gdtl=03ff idtr=80036400 idtl=07ff tr=0028 ldtr=0000
-
- 80100000 2c51c0e8 ntoskrnl.exe 80400000 2c47123b hal.dll
- 80010000 2c360942 atdisk.sys 80001000 2c4de536 ftdisk.sys
- 801e6000 2c42f49a fastfat.sys
- ==============================================================
-
- An I387KD.EXE stack trace will resemble the following:
-
- kd>kb
-
- ChildEBP RetAddr Args to Child
- 801abf78 801481e2 00000001 e1000000 801ac718 NT!_DbgBreakPoint
- 801ac3e0 801645ca 0000007f 0000000d 00000000 NT!_KeBugCheckEx+0x38c
- 801ac3fc 80116be8 00000020 8012ccf6 ff29c7c8 NT!_KiSystemFatalException+0xe
- 801ac480 801bee29 00000001 0000000c 00000000 NT!_ExAllocatePool+0x1c2
- 801ac4c0 801bfae5 80267000 801b6e35 801ac74c
- NT!_SepVariableInitialization+0x99
- 801ac4c8 801b6e35 801ac74c ffdff120 801aa308 NT!_SepInitializationPhase0+0x15
- 801ac5fc 801ba67a 00000000 80267000 80036c00 NT!_ExpInitializeExecutive+0x385
- 801ac74c 801ba3f5 801a9d20 801aa190 801ac770 NT!_KiInitializeKernel+0x25a
- 00000000 801ba3f5 801a9d20 801aa190 801ac770 NT!_KiSystemStartup+0x295
-
-
- MORE INFORMATION
- ================
-
- Confusion exists on the compatibility of SIMM memory between the 486
- /L, /M, /T, /ME, and 333sl systems and previous models. Use the
- following information to correctly configure memory on a Dell
- computer:
-
- 486 /L, /M, and /T all use 70ns, nonparity, 72-pin SIMMs with
- tin-lead contacts, in 4 megabyte (MB) and 16MB sizes. These are not
- compatible with any other earlier Dell systems.
-
- 486/ME systems use 70ns, parity, 72-pin, 2MB, 4MB, 8MB, and 16MB
- SIMMs with tin-lead contacts. SIMMs used in DE/SE models use gold
- contacts and are 80ns, so they are not interchangeable. Due to the
- parity bit, these are also not interchangeable with the /M, /T, and
- /L systems.
-
- The 333sl uses 60ns, nonparity, tin-lead, 1MB, 4MB, and 16MB 72-pin
- SIMMs. These are unique to this system due to the 60ns speed.
-
- The part numbers of the SIMMs are different for each "family" of
- systems noted above, so be sure you are using the correct part for any
- service activity.
-
- All Dell EISA systems, including the ME, require SIMMs to be installed
- in pairs. A single SIMM will not work.
-
- NOTE: Memory modules that have mismatched speeds (for example, 70ns
- and 80ns chips in the same computer) have also been known to produce
- 7f traps on setup.
-
- Additional reference words: 3.10 crash
- KBCategory:
- KBSubCategory: hrdwr
-
- =============================================================================
-
- THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
- PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
- ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO
- EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
- ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
- CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
- MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION
- OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
- SO THE FOREGOING LIMITATION MAY NOT APPLY.
-
- Copyright Microsoft Corporation 1993.