Installing windows xp on sony vaio laptop vgn-cs14g

This sony vaio laptop vgn-cs14g comes with Windows Vista.
My customer wanted me to install windows xp on it. But the trouble was that when I started winxp installation after re-partitioning the HDD, I got this BSOD. At first i thought it was some hardware issue, but it was not so .....
I had to integrate the sata drivers into the winxp cd ...... and that's all ...
Recently my friend came across the same problem with a compaq presario laptop model number CQ 40-180 TU .
For SATA RAID , AHCI drivers download it from http://downloadcenter.intel.com/filter_results.aspx?strTypes=all&ProductID=2842&OSFullName=Windows*+XP+Professional&lang=eng&strOSs=44&submit=Go%21
The steps ..
Step 1:-- Enabling Audio:You need to flash the BIOS to F.11C as given below :
> Copy the all the files from BIOS folder to a DOS bootable Thumb drive
> Boot the notebook via dos bootable thumb drive (press F9 to select Flash drive boot)
> At the DOS command prompt , i.e, C:\ type Flash.bat and shutdown the notebook after completing the BIOS flashing. (this may take 25 to 30 seconds)

Step 2:-- Installing O.S :
Suggested : WinXP SP3 Bootable Disc with ACHI driver ready O.S image (can be done using nlite)Note :-- u needn't have any Floppy drive under this process

Step 3:-- Installing Drivers : (Install from the Drivers DVD - already given)
The above 3steps completes the Entire Installation process.

Nero DMA error

You might come across an error which pops up the nero dma manager dialog box and shows a DMA error.

You have to open regedit form run and then go to the registry key as shown in the attached print screen. Remove MasterIdDataCheckSum and SlaveIdDataCheckSum under the 0000 - 0005 keys. This 0000 - 0005 key vary in number from system to system.

Restart after deleting the keys ….. Now you are done …. And Voila

Removing exclamation mark from cd or dvd drives

Mostly we will find that after installing improper sound drivers we might get a BSOD and mostly exclamation marks on the optical drives i.e: cd and dvd. This aslo happens for some softwares like virtual drive softwares and others.

However here is the fix

Create a text file with NOTEPAD containing the following data exactly as below and give any name with extension .reg
You should have 3 boxes on the bottom in NOTEPAD.
1)Filename : name.reg
2)Save as type: all files
3)Encoding: ANSI

Double click on the file and say yes to the merge into registry question.

Copy the contents below on a notepad file

REGEDIT4

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}]
“UpperFilters”=-
“LowerFilters”=-

[-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdr4_2K]

[-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdralw2k]

[-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Cdudf]

[-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UdfReadr]