XP running on a 486 cpu

[roytam1]

12 hours ago, Dietmar said:

Are WINNT32A.DLL and WINNT32U.DLL on the german CD the same as on English ones?

Please tell me the crack or send me the already modded files

patch 2 JNZ and replace 2 JZ with nops:

 7:44 D:\OS\xp-486-hack\eng-orig>fc /b WINNT32A.DLL ..\eng-hack\WINNT32A.DLL
Comparing files WINNT32A.DLL and ..\ENG-HACK\WINNT32A.DLL
000250C7: 75 EB
0002986D: 0F 90
0002986E: 84 90
0002986F: 87 90
00029870: 04 90
00029871: 00 90
00029872: 00 90
0002987D: 0F 90
0002987E: 84 90
0002987F: 77 90
00029880: 04 90
00029881: 00 90
00029882: 00 90

 7:44 D:\OS\xp-486-hack\eng-orig>fc /b WINNT32U.DLL ..\eng-hack\WINNT32U.DLL
Comparing files WINNT32U.DLL and ..\ENG-HACK\WINNT32U.DLL
000323CC: 75 EB
0003739E: 0F 90
0003739F: 84 90
000373A0: 43 90
000373A1: 07 90
000373A2: 00 90
000373A3: 00 90
000373AE: 0F 90
000373AF: 84 90
000373B0: 33 90
000373B1: 07 90
000373B2: 00 90
000373B3: 00 90

 

Edited May 1 by roytam1

[Dietmar]

@roytam1

Have you tested with the modded WINNT32A.DLL and WINNT32U.DLL,

if the hack in ntoskrnl.exe against Bug Check 0x5D UNSUPPORTED_PROCESSOR

is not necessary any longer

Dietmar

[roytam1]

33 minutes ago, Dietmar said:

@roytam1

Have you tested with the modded WINNT32A.DLL and WINNT32U.DLL,

if the hack in ntoskrnl.exe against Bug Check 0x5D UNSUPPORTED_PROCESSOR

is not necessary any longer

Dietmar

yeah, tried upgrading from Win2000 to XP. Without patch it will pops out a message box of requiring Pentium processor and exit.

as it runs cpuid by its own, patching kernel doesn't help.

[Dietmar]

@roytam1

I think, that you miss a 90 at the end of this

Dietmar

Comparing files WINNT32U.DLL and ..\ENG-HACK\WINNT32U.DLL
000323CC: 75 EB
0003739E: 0F 90
0003739F: 84 90
000373A0: 43 90
000373A1: 07 90
000373A2: 00 90
000373A3: 00 90
000373AE: 0F 90
000373AF: 84 90
000373B0: 33 90
000373B1: 07 90
000373B2: 00 90 <==

 

[roytam1]

49 minutes ago, Dietmar said:

@roytam1

I think, that you miss a 90 at the end of this

Dietmar

Comparing files WINNT32U.DLL and ..\ENG-HACK\WINNT32U.DLL
000323CC: 75 EB
0003739E: 0F 90
0003739F: 84 90
000373A0: 43 90
000373A1: 07 90
000373A2: 00 90
000373A3: 00 90
000373AE: 0F 90
000373AF: 84 90
000373B0: 33 90
000373B1: 07 90
000373B2: 00 90 <==

 

last line missed when I copy from console buffer, but yes 373B3 is changed to 0x90 as well.

[Dietmar]

Hi,

is there a tool or an adapter, where you can put your xp.iso on it,

so that it looks like a real CD-Rom? Connector to compi can be IDE or Sata or PCI.

No USB connector, because old motherboards know nothing about USB.

I ask this, because I notice, that some of my burned CD-Roms do not work any longer, because of age(?)

Dietmar

Edited May 2 by Dietmar

[roytam1]

37 minutes ago, Dietmar said:

Hi,

is there a tool or an adapter, where you can put your xp.iso on it,

so that it looks like a real CD-Rom? Connector to compi can be IDE or Sata or PCI.

No USB connector, because old motherboards know nothing about USB.

I ask this, because I notice, that some of my burned CD-Roms do not work any longer, because of age(?)

Dietmar

yeah, just not cheap. https://shop.tattiebogle.net/product/prod_EkTnv3Tk2Trxhf

another one: http://www.zuluide.com/

and there is a thread in vogons: https://www.vogons.org/viewtopic.php?t=67897

Edited May 2 by roytam1

[Dietmar]

@roytam1

Do you have success with installing your modded english XP SP3 on a 486 cpu?

Which version do you use? Do you change anything compared with my files?

I am soso curious, can you send me your modded files?

Just now I am installing my german xp486.iso direct onto an AMD 133MHZ 486 cpu

Dietmar

[roytam1]

3 hours ago, Dietmar said:

Do you have success with installing your modded english XP SP3 on a 486 cpu?

no, got BSOD after 1st stage.

3 hours ago, Dietmar said:

Which version do you use?

XP Pro SP3 VL.

3 hours ago, Dietmar said:

Do you change anything compared with my files?

just replaced resources with English.

3 hours ago, Dietmar said:

can you send me your modded files?

check your inbox. :-)

3 hours ago, Dietmar said:

Just now I am installing my german xp486.iso direct onto an AMD 133MHZ 486 cpu

I have a bare metal but it is in decomposed state, having not enough memory.

[Dietmar]

[roytam1]

no idea why it works when I changed CPU to Am5x86-P90.

[roytam1]

On 5/1/2024 at 1:53 AM, Dietmar said:

On real 486 compi, the same reboot happens before the F8 appears.

so it installed a unmodified version as ntoskrnl.exe. maybe we need to replace all ntoskrnl variations with our patched one.

[Dietmar]

@roytam1

This problem I have had before. Now I always look, if still the modified ntoskrnl.exe is at its place.

I think, that the same happens to you. In the very last reboot, some files are changed back to their original one.

Because I do not change them in sp3.cab or dll or driver folder.

For to overcome this, I just put out HD before last reboot and copy by hand back all the modded files. This works for me.

Until now I do not succeed to install any PCI to Sata or IDE controller under XP.

With the original PIO 3 IDE controller on the Shuttle Hot 433 board, the transfer speed is about 7MByte/s, brrr..

I tried really all. No driver is even correct installed under running XP.

I tried: Promise TX2 300, Silicon 3114, Silicon 3112 and a no name from China.

"Best" result shows the Promise driver, but even when XP tells, that its driver is correct installed, I never see a harddisk via this adapter,

nor I can boot from it

Dietmar

[ProgramHacker]

On 5/2/2024 at 6:56 AM, Dietmar said:

Hi,

is there a tool or an adapter, where you can put your xp.iso on it,

so that it looks like a real CD-Rom? Connector to compi can be IDE or Sata or PCI.

No USB connector, because old motherboards know nothing about USB.

I ask this, because I notice, that some of my burned CD-Roms do not work any longer, because of age(?)

Dietmar

There's a cheaper way

 

[ProgramHacker]

On 5/2/2024 at 7:31 AM, roytam1 said:

yeah, just not cheap. https://shop.tattiebogle.net/product/prod_EkTnv3Tk2Trxhf

another one: http://www.zuluide.com/

and there is a thread in vogons: https://www.vogons.org/viewtopic.php?t=67897

 

On 5/2/2024 at 6:56 AM, Dietmar said:

Hi,

is there a tool or an adapter, where you can put your xp.iso on it,

so that it looks like a real CD-Rom? Connector to compi can be IDE or Sata or PCI.

No USB connector, because old motherboards know nothing about USB.

I ask this, because I notice, that some of my burned CD-Roms do not work any longer, because of age(?)

Dietmar

There is a way to make it work, you JUST need a single ssd with 32gb of storage, like this

First step,  you use the "IDE TO USB" adapter and connect your very old HDD to the new pc

Make sure that the very old HDD had only ONE partition, or it won't work

Then, type these commands;

 

diskpart

(if permissions, press yes)

lis dis 

lis vol

(look at your HDD <DRIVELETTER> and type: sel vol <DRIVENUMBER> at diskpart)

then sel ur volume

 

active

exit

 

After that, you copy ALL of your windows XP CD-ROM files to the very old HDD that you plug in, then eject the drive.

For some reason this method works for windows vista and later DVD-ROMS when trying to copy all files over to the harddrive to make hdd boot.

After that, plug it back into your old 486 PC and pray that it works.

If problems, please tag me in the description.

Edited May 4 by ProgramHacker
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