Enable XD-bit Samsung Q1

[Andreatheflyer]

Hi guys,
I own a Samsung model NP-Q1 tablet PC. I would like to upgrade it to Windows 10 but I can't because of lack of the eXecute Disable bit function.
Actually the processor (Celeron M ULV 353) supports it:

http://ark.intel.com/it/products/27157/I...00-MHz-FSB

However i can't find it in the BIOS setting. I suspect that is hidden somewhere. Original bios download link:

http://downloadcenter.samsung.com/conten...1_20MA.exe

Could you please enable switching XD-bit on or off?

Regards,

Andrea

[DeathBringer]

Go to BIOS. tab Advanced -> EDB (Execute Disable Bit)
Enable it.
Download Coreinfo, run it command line and post results.

[Andreatheflyer]

Go to BIOS. tab Advanced -> EDB (Execute Disable Bit)
Enable it.
Download Coreinfo, run it command line and post results.

There is no EDB in the BIOS screen, i'll post the screenshots.

[Andreatheflyer]

Go to BIOS. tab Advanced -> EDB (Execute Disable Bit)
Enable it.
Download Coreinfo, run it command line and post results.

Here you can see the "advanced" tab of the BIOS menu. Nothing about XD-bit.

[DeathBringer]

Make CPU-Z TXT Report and post "Processors Information" & "Thread dumps" sections from it.
Download SYMCMOS and run in native(!) DOS:
SYMCMOS –v2 –lOLD.TXT
Post file old.txt

Code:

usage:                                                  
   SYMCMOS <options>                                    
      -?                show this help                  
      -D                program BIOS default values    
      -S[filename]      produce symbolic report file    
      -L[filename]      produce literal report file    
      -U[filename]      update CMOS using script file  
      -C[filename]      combine build files            
      -F[filename]      use combine file for report    
      -V0               disable logging                
      -V1               enable error logging (default)  
      -V2               enable verbose logging          
      -V3               No CMOS update and verbose logging

[Andreatheflyer]

Make CPU-Z TXT Report and post "Processors Information" & "Thread dumps" sections from it.
Download SYMCMOS and run in native(!) DOS:
SYMCMOS –v2 –lOLD.TXT
Post file old.txt

Code:

usage:
SYMCMOS <options>
-? show this help
-D program BIOS default values
-S[filename] produce symbolic report file
-L[filename] produce literal report file
-U[filename] update CMOS using script file
-C[filename] combine build files
-F[filename] use combine file for report
-V0 disable logging
-V1 enable error logging (default)
-V2 enable verbose logging
-V3 No CMOS update and verbose logging

For "Native DOS" you mean I have to make like a USB stick with MS-DOS only? I'm running Win 7 on this machine so I only have DOS prompt with it.

[DeathBringer]

Yes, you need "a USB stick with MS-DOS only". But requested information from CPU-Z TXT Report is more necessary.

[Andreatheflyer]

Make CPU-Z TXT Report and post "Processors Information" & "Thread dumps" sections from it.
Download SYMCMOS and run in native(!) DOS:
SYMCMOS –v2 –lOLD.TXT
Post file old.txt

Code:

usage:
SYMCMOS <options>
-? show this help
-D program BIOS default values
-S[filename] produce symbolic report file
-L[filename] produce literal report file
-U[filename] update CMOS using script file
-C[filename] combine build files
-F[filename] use combine file for report
-V0 disable logging
-V1 enable error logging (default)
-V2 enable verbose logging
-V3 No CMOS update and verbose logging

In the meantime, here you are the coreinfo and cpu-z reports.

[DeathBringer]

Bad news:
1. XD-bit is disabled.
2. I don't find the code in BIOS that disable XD-bit. I think unlocking hidden options in BIOS will not help.
3. In your system XD-bit isn't disabled by BIOS. Cause 34 bit of IA32_MISC_ENABLE (MSR with address 0x1A0) is equal zero.

P.S. SYMCMOS's information isn't needed anymore.

[DeathBringer]

Read Intel® Celeron® M Processor on 90nm Process Datasheet:

Execute Disable Bit support for enhanced security (available on processors with CPU Signature=06D8h and recommended for implementation on Intel® 915/910 Express Chipset-based platforms only)

Your CPU has CPUID=0x6D6 (stepping B1), not 0x6D8 (stepping C0). It's the reason why your CPU doesn't support XD-bit.