I am creating this thread for all all of those who want a SAFE way to enable VT-x, AHCI, or various other options that do not show up in their Phoenix BIOSs. This method does NOT involve flashing the BIOS. Only the CMOS NVRAM is modified, so any changes made can always be reverted if necessary and will never result in the corruption of the BIOS. Please note that this is NOT a BIOS modding request thread. This is only for NVRAM Registers. 
NOTE: I am building upon a "master list" of NVRAM registers created by ScuderiaConchiglia (Gary) from notebookreview.com. All credit for the original creation of the list and >95% of the VT registers goes to him. He gathered users' submissions of working NVRAM registers for each notebook/BIOS and organized them into one list. My contributions include the AHCI/DEP registers, posting of the list here, and <5% of the VT registers.
The way that I find NVRAM registers involves the BIOS image itself. The image is decompressed using AndyP's PhoenixTool and then the TEMPLAT0.ROM and STRINGS0.ROM modules are inspected to identify the registers. This method works very well on new-style phoenix BIOS's.
So far, most of the list is occupied by Sony notebook models as it originally came from a thread about Sony Vaio models. I am going to divide this list into different sections for each manufacturer.
As for register compatibility, the BIOS version must be the same. The notebook model is irrelevant. All that matters is that you have the same BIOS version.
------------------------------------------------------------------------------------------------
If you wish to contribute to this list, there are 2 ways of doing so:
1.) Upload/link your BIOS file (dump or official update) here so that I can download it and figure out the registers for VT-x and/or AHCI and/or DEP.
2.) Figure out the register on your own. There are 2 primary ways of doing this. The first involves trial-and-error with symcmos. The second way involves inspecting your own BIOS image. Please double check your work if you use this method.
I will be posting user-friendly tutorials on how to perform both methods of "register hunting."
EDIT: Here is the tutorial on tracing NVRAM Registers on your own.
------------------------------------------------------------------------------------------------
If you have any questions, confusions, or needs for clarification, please post a reply on this thread or PM me.
My ability to add registers to this list depends entirely on user submissions of their BIOS images or their own findings.
INFO: DEP stands for "Data Execution Prevention." It also goes by names similar to "No Mem Protection" "Execute-Disable Bit" "No Mem Execute" etc...
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---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
DOS Commands for Reading/Writing to the CMOS NVRAM:
NOTE: Most of these registers were acquired from users' submissions. I cannot verify the accuracy of all of these (unless I have the image). If you find a mistake in the list, please tell me so that I can fix it. When telling me, an image of the BIOS would also be helpful.
	
	

NOTE: I am building upon a "master list" of NVRAM registers created by ScuderiaConchiglia (Gary) from notebookreview.com. All credit for the original creation of the list and >95% of the VT registers goes to him. He gathered users' submissions of working NVRAM registers for each notebook/BIOS and organized them into one list. My contributions include the AHCI/DEP registers, posting of the list here, and <5% of the VT registers.
The way that I find NVRAM registers involves the BIOS image itself. The image is decompressed using AndyP's PhoenixTool and then the TEMPLAT0.ROM and STRINGS0.ROM modules are inspected to identify the registers. This method works very well on new-style phoenix BIOS's.
So far, most of the list is occupied by Sony notebook models as it originally came from a thread about Sony Vaio models. I am going to divide this list into different sections for each manufacturer.
As for register compatibility, the BIOS version must be the same. The notebook model is irrelevant. All that matters is that you have the same BIOS version.
------------------------------------------------------------------------------------------------
If you wish to contribute to this list, there are 2 ways of doing so:
1.) Upload/link your BIOS file (dump or official update) here so that I can download it and figure out the registers for VT-x and/or AHCI and/or DEP.
2.) Figure out the register on your own. There are 2 primary ways of doing this. The first involves trial-and-error with symcmos. The second way involves inspecting your own BIOS image. Please double check your work if you use this method.
I will be posting user-friendly tutorials on how to perform both methods of "register hunting."
EDIT: Here is the tutorial on tracing NVRAM Registers on your own.
------------------------------------------------------------------------------------------------
If you have any questions, confusions, or needs for clarification, please post a reply on this thread or PM me.
My ability to add registers to this list depends entirely on user submissions of their BIOS images or their own findings.
INFO: DEP stands for "Data Execution Prevention." It also goes by names similar to "No Mem Protection" "Execute-Disable Bit" "No Mem Execute" etc...
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
NVRAM MASTER LIST
Code:
Laptop Models:
SONY MODEL      BIOS VERSION    VT REGISTER    AHCI REGISTER    DEP REGISTER
==========      ============    ===========    =============    ============
AR Models:
VGN-AR21S       R0200J6         reg 0195       [reg 00F6]       |02F7|
VGN-AR31S       R0200J6         reg 0195       [reg 00F6]       |02F7|
VGN-AR31M       R0200J6         reg 0195       [reg 00F6]       |02F7|
VGN-AR71S       R2090J8         reg 0285       [reg 0009]       |028E|
VGN-AR71M       R2090J8         reg 0285       [reg 0009]       |028E|
VGN-AR870       R2090J8         reg 0285       [reg 0009]       |028E|
VGN-AR61ZRU     R2080J8         reg 0285       [reg 0009]       |028E|
VGN-AR61ZU      R2080J8         reg 0285       [reg 0009]       |028E|
VGN-AR61M       R2080J8         reg 0285       [reg 0009]       |028E|
VGN-AR61E       R2080J8         reg 0285       [reg 0009]       |028E|
VGN-AR730E      R2080J8         reg 0285       [reg 0009]       |028E|
VGN-AR51SU      R1050J8         reg 027F       
VGN-AR670       R1050J8         reg 027F       
VGN-AR690U      R1050J8         reg 027F       
VGN-AR250G      R0150J6         reg 0195       
VGN-AR550U      R0030J8         reg 027F       
VGN-AR630E      ???             reg 027F       
VGN-AR520E      R0032J8         reg 0282       [reg 0009]       |0288|
VGN-AR41L       R0032J8         reg 0282       [reg 0009]       |0288|
VGN-AR41E       R0032J8         reg 0282       [reg 0009]       |0288|
C Models:
VGN-C1Z         R0035J4         reg 030C       [reg 00FC]       |030F|
VGN-C290N       R0080J4         reg 0318       [reg 00FC]       |031B|
VGN-C260E       R0080J4         reg 0318       [reg 00FC]       |031B|
CR Models:
VGN-CR240E      R1121Q0         reg 05BB       
VGN-CR290E      R1121Q0         reg 05BB       
VGN-CR231E      R1121Q0         reg 05BB       
VGN-CR29XN      R1121Q0         reg 05BB       
VGN-CR220E      R1121Q0         reg 05BB       
VGN-CR220E      R1100Q0         reg 05BB       
VGN-CR353       R2101Q0         reg 05BB       
VGN-CR320E      R2101Q0         reg 05BB       
VGN-CR354       R2101Q0         reg 05BB       
VGN-CR590E      R2101Q0         reg 05BB       
VGN-CR520D      ???????         reg 05BB       
VGN-CR520E      ???????         reg 05BB       
VGN-CR11SH      R0220Q0         reg 05B2       
VGN-CR120E      R0220Q0         reg 05B2       
VGN-CR19XN/B    R0220Q0         reg 05B2       
VGN-CR13G       R0231Q1         reg 05B2       
SZ Models:
VGN-SZ??        R0112N0         reg 0354       [reg 015C]       |0357|
VGN-SZ1M/B      R0112N0         reg 0354       [reg 015C]       |0357|
VGN-SZ460N      R0112N0         reg 0354       [reg 015C]       |0357|
VGN-SZ71WN      R0121S5         reg 02F1       
VGN-SZ79GN      R0122S5         reg 02F1       [reg 0189]    |02FA|
VGN-SZ61XN_C    R0122S5         reg 02F1       [reg 0189]    |02FA|
VGN-SZ61WNC     R0122S5         reg 02F1       [reg 0189]    |02FA|
VGN-SZ730E/C    R0122S5         reg 02F1       [reg 0189]    |02FA|
VGN-SZ95US      R0122S5         reg 02F1       [reg 0189]    |02FA|
VGN-SZ???       R0101S5         reg 02F1       
VGN-SZ1XP       R0096N0         reg 0399       [reg 0165]       |039C|
VGN-SZ360       R0096N0         reg 0399       [reg 0165]       |039C|
VGN-SZ370       R0096N0         reg 0399       [reg 0165]       |039C|
VGN-SZ3XP       R0096N0         reg 0399       [reg 0165]       |039C|
VGN-SZ120P      R0092N0         reg 0399       
FE Models
VGN-FE890       R0200J3         reg 0195       [reg 00F6]       |02F7|
VGN-FE21SR      R0200J3         reg 0195       [reg 00F6]       |02F7|
VGN-FE31M       R0200J3         reg 0195       [reg 00F6]       |02F7|
VGN-FE550G      R0072J3         reg 0195       
VGN-FE41E       R0200J3         reg 0195       [reg 00F6]       |02F7|   (Note: User upgraded CPU from T5500 to T7600 and BIOS to R0200J3)
VGN-FE780G      R0200J3         reg 0195       [reg 00F6]       |02F7|   (Note: User upgraded BIOS to R0200J3)
FZ Models:
VGN-FZ240E       R1120J7        reg 02CD
TZ Models:
VGN-TZ130N      R0052N7         reg 0363       [reg 0159]       |0366|
VGN-TZ180N      R0052N7         reg 0363       [reg 0159]       |0366|
VGN-TZ17GN      R0052N7         reg 0363       [reg 0159]       |0366|
VGN-TZ91HS      R0052N7         reg 0363       [reg 0159]       |0366|
VGN-TZ21MN_N    R0052N7         reg 0363       [reg 0159]       |0366|
VGN-TZ20WN      R0052N7         reg 0363       [reg 0159]       |0366|
VGN-TZ27GN      R0071N7         reg 0363       
VGN-TZ92NS      R0081N7         reg 0363       
VGN-TZ37        R0081N7         reg 0363       
VGN-TZ31MN      R0091N7         reg 0363       
FZ Models:
VGN-FZ180E      R0050J7         reg 02D3       [reg 0009]
VGN-FZ190E      R0050J7         reg 02D3       [reg 0009]
VGN-FZ11ZR      R0050J7         reg 02D3       [reg 0009]
VGN-FZ160E      R0050J7         reg 02D3       [reg 0009]
VGN-FZ130E      R0040J7         reg 02D3       
VGN-FZ140E      R0040J7         reg 02D3       
VGN-FZ150E      R0040J7         reg 02D3       
VGN-FZ31M       R2110J7         reg 02D0       
VGN-FZ31Z       R2110J7         reg 02D0       
VGN-FZ340E      R2110J7         reg 02D0       
VGN-FZ470E      R2110J7         reg 02D0       
VGN-FZ490N      R2110J7         reg 02D0       
VGN-FZ35GN      R2110J7         reg 02D0       
VGN-FZ38M       R2110J7         reg 02D0
VGN-FZ39VN      R2110J7         reg 02D0       
VGN-FZ480       R2110J7         reg 02D0       
VGN-FZ35M       R2110J7         reg 02D0       
VGN FZ345D      R2110J7         reg 02D0       
VGN FZ31S       R2110J7         reg 02D0       
VGN-FZ350AE     R2110J7         reg 02D0       
VGN-FZ21M       R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
VGN-FZ290       R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
VGN-FZ21Z       R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
VGN-FZ21E       R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
VGN-FZ290E      R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
VGN-FZ280E      R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
VGN-FZ91NS      R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
VGN-FZ230E      R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
VGN-FZ285U      R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
VGN-FZ260E      R1120J7         reg 02CD       [reg 0009]       |reg 02D3|
G Models:
VGN-G11XRN/B    R0062N5         reg 0360       [reg 015C]    |reg 0363|
N Models:
VGN-N31Z/W      R0100J4         reg 0318       
VGN-N250E       R0030J4         reg 030C       [reg 00FC]       |reg 030F|  (NOTE: User upgraded CPU from Intel T2250 to Intel T2700 for VT-x)
VGN-N250E       R0070J4         reg 0318       [reg 00FC]       |reg 031B|  (NOTE: User upgraded CPU from Intel T2250 to Intel T2700 for VT-x)
NR Models:
VGN-NR11Z/S     R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR11Z       R0130J9         reg 02D0
VGN-NR110E    R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR115E    R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR120E    R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR123E    R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR140E    R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR160E    R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR160N    R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR180E    R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR180N    R0131J9         reg 02D0       [reg 0009]       |02D6|
VGN-NR185E    R0131J9         reg 02D0       [reg 0009]       |02D6|
UX Models:
VGN-UX390N    R0112N2        reg 034E       [reg 015C]       |0351|    
Desktop Models:
SONY MODEL      BIOS VERSION    REGISTER       
==========      ============    ========
VGC-LA2         R0102W2         reg 0198       
VGX-TP1E        R1060W3         reg 02C4       
VGC-LM1ER       R0250W5         reg 02E8       
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ACER MODEL      BIOS VERSION    VT REGISTER    AHCI REGISTER    DEP REGISTER
==========      ============    ===========    =============    ============
4720z           Z013810         reg 035A                        |reg 0360|
4320z           Z013810         reg 035A                        |reg 0360|
4320g           Z013810         reg 035A                        |reg 0360|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Toshiba MODEL      BIOS VERSION    VT REGISTER    AHCI REGISTER    DEP REGISTER
=============      ============    ===========    =============    ============
Satellite Models:
M110-ST1161        PL10190         reg 0276                        |0279|
M115-S3094         PL10190         reg 0276                        |0279|
M115-S3104         PL10190         reg 0276                        |0279|
M115-S3144         PL10190         reg 0276                        |0279|
M115-S3154         PL10190         reg 0276                        |0279|
M115-SP3021        PL10190         reg 0276                        |0279|
A100-784 PSAANE    S10GM600        reg 0297                        |029A|
A100-784 PSAANE    S10PM600        reg 0297                        |029A|
A110 (PSAB6E)      TW2E170A        reg 05FA                       |0144|
Other Models:
P300-133           BL5S3D57        reg 0237       [reg 058E]       |023D|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
HP MODEL      BIOS VERSION    VT REGISTER    AHCI REGISTER    DEP REGISTER
========      ============    ===========    =============    ============
DV9000        30CFF34A        reg 020A    
DV9000        30CFF34B        reg 0219                    
                   
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
UNKNOWN MODELS:
BIOS VERSION    VT REGISTER    AHCI REGISTER    DEP REGISTER
============    ===========    =============    ============
R0170J3         reg 0195       [reg 00F6]       |02F1|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
DOS Commands for Reading/Writing to the CMOS NVRAM:
Code:
Reading:
symcmos -v2 -LDefault.txtCode:
Writing:
symcmos -v2 -UModified.txtNOTE: Most of these registers were acquired from users' submissions. I cannot verify the accuracy of all of these (unless I have the image). If you find a mistake in the list, please tell me so that I can fix it. When telling me, an image of the BIOS would also be helpful.
!!!!!PLEASE READ!!!!!! Our Ukrainian friends are undergoing atrocities right now and need support. There are two things you can do for starters: 
1.) Donate to one of various organizations offering medical, military, and psychological support to those impacted: Support Organizations
2.) Combat misinformation on social media.
Also, please feel free to PM me if I have not replied again about your BIOS mod request after 5 days.
	
1.) Donate to one of various organizations offering medical, military, and psychological support to those impacted: Support Organizations
2.) Combat misinformation on social media.
Also, please feel free to PM me if I have not replied again about your BIOS mod request after 5 days.

						

			



