http://downloads.guru3d.com/download.php?det=1118
This tool (NBM) is intended for modification of BIOSes of nVidia 6x00 and 7x00 cards ONLY!!! BIOSes of nVidia 5x00 and older aren’t supported.
NBM (v.1.1) is used to view, extend and erase (or just modify) data from GeForce 6x00 and 7x00 BIOS files, you can alter the following:
1) General Info section;
2) Voltage Table section;
3) Performance Table section.
General Info section provides modification of next parameters:
a) Chip Name and Chip ID describe info about GPU: these 2 parameters are logically coupled, and when user changes one of them second changes synchronically;
Chip Name is the name of GPU (for example, NVIDIA 6800).
Chip ID is identifier of this GPU (for example, GPU’s ID of NVIDIA 6800 equals 0041 in HEX).
B) Vendor Name and Vendor ID describe info about vendor: it’s very similar to Chip Name and Chip ID.
c) Start-up Info contains info about videocard (such as BIOS version, date etc) that user can see when the system just starts-up.
Voltage Table section modifies the following parameters:
Number Of Voltage Levels describes how many voltage levels are in Voltage Table (VT). Using this parameter user can configure the number of possible Vgpu values and correspond it to VID values. For example, VT of 6800NU consists of 3 entries (1.1V – 0, 1.2V – 1 and 1.4V – 2) by default, but nobody prevents to extend this table and add 4th entry. As a result VT will consist of 4 entries (1.1V – 0, 1.2V – 1, 1.4V – 2 and 1.5V – 3)! Also user can decrease number of VT levels.
every voltage level contains info about actual Vgpu and VID corresponds to this voltage.
Vgpu is made changeable, because there are many videocards that have values of this parameter without corresponding it to real measurements by digital multimeter.
For example, extended voltage table of my 6800NU consists of 4 entries (1.1V – 0, 1.2V – 1, 1.4V – 2 and 1.5V – 3). 2nd level (numeration starts from 0) of VT consists of Vgpu = 1.4V and VID = 2. When I set this voltage for 2D mode and then measure real voltage by digital multimeter I get only 1.3V! In other words, advanced user can correct values of Vgpu with measured values. In real this feature CAN’T increase/decrease Vgpu values!!!
VID is made changeable, because different videocards have different power supply system of GPU (Vgpu and corresponding VID values).
For example, if advanced user wants to flash BIOS from 6800GT in his 6800NU, he should correct some of possible Vgpu and VID values in VT previously. That’s because BIOS of 6800NU has growth-sorted values of Vgpu and VID, but BIOS of 6800GT has growth-sorted values of Vgpu only.
Performance Table section provides modification of next parameters:
Number Of Performance Levels describes how many performance levels are in Performance Table (PT). Using this parameter user can configure the number of possible Fgpu values and correspond it with Vgpu and Ffan values. For example, PT of 6800NU consists of only 1 entry (Fgpu = 325MHz, Vgpu = 1.2V, Ffan = 40%) by default. But user wants to extend PT, he should add 2nd only or 2nd and 3rd performance levels. As a result PT will consist of 2 or 3 entries (as you can see on picture below)! Also user can decrease number of PT levels, but I think there is no any reason to do that. J
Fgpu is the frequency of GPU for defined mode (2D, LP3D, 3D). The values of this parameter always must be growth-sorted and this growth-sorting protection is released in this tool. It means that Fgpu2D <= FgpuLP3D <= Fgpu3D.
Vgpu is the value of GPU voltage for defined mode (2D, LP3D, 3D). Growth-sorting protection is spread on this parameter also.
Ffan is the value of GPU’s cooler fan frequency (in percents). Growth-sorting protection is spread on this parameter also.
Fmem is the DDR frequency of videocard’s memory. (This value must be always the same for each mode (2D, LP3D, 3D) due to protection of ForceWare driver v.6x.xx!)
If the user has made some changes, but he wants to get default data, he should just press “Load Defaults” button. But if he pressed “Apply Changes” the default data become applied. But even in this case user can return default data by reopening file with BIOS image.
After making changes user should apply them by pressing “Apply Changes” button. And only then modified BIOS maybe saved in file.
NBM v.1.1 supports Drag-n-Drop technology. It means that user can drag and then drop BIOS image file on tool’s window. Also if user registers .rom-file in Windows once, then to open BIOS image he should just double-click on one of them. In this case, NBM will be opened with selected file immediately.
If you don't know what you are doing, then steer away from this tool.
This tool (NBM) is intended for modification of BIOSes of nVidia 6x00 and 7x00 cards ONLY!!! BIOSes of nVidia 5x00 and older aren’t supported.
NBM (v.1.1) is used to view, extend and erase (or just modify) data from GeForce 6x00 and 7x00 BIOS files, you can alter the following:
1) General Info section;
2) Voltage Table section;
3) Performance Table section.
General Info section provides modification of next parameters:
a) Chip Name and Chip ID describe info about GPU: these 2 parameters are logically coupled, and when user changes one of them second changes synchronically;
Chip Name is the name of GPU (for example, NVIDIA 6800).
Chip ID is identifier of this GPU (for example, GPU’s ID of NVIDIA 6800 equals 0041 in HEX).
B) Vendor Name and Vendor ID describe info about vendor: it’s very similar to Chip Name and Chip ID.
c) Start-up Info contains info about videocard (such as BIOS version, date etc) that user can see when the system just starts-up.
Voltage Table section modifies the following parameters:
Number Of Voltage Levels describes how many voltage levels are in Voltage Table (VT). Using this parameter user can configure the number of possible Vgpu values and correspond it to VID values. For example, VT of 6800NU consists of 3 entries (1.1V – 0, 1.2V – 1 and 1.4V – 2) by default, but nobody prevents to extend this table and add 4th entry. As a result VT will consist of 4 entries (1.1V – 0, 1.2V – 1, 1.4V – 2 and 1.5V – 3)! Also user can decrease number of VT levels.
every voltage level contains info about actual Vgpu and VID corresponds to this voltage.
Vgpu is made changeable, because there are many videocards that have values of this parameter without corresponding it to real measurements by digital multimeter.
For example, extended voltage table of my 6800NU consists of 4 entries (1.1V – 0, 1.2V – 1, 1.4V – 2 and 1.5V – 3). 2nd level (numeration starts from 0) of VT consists of Vgpu = 1.4V and VID = 2. When I set this voltage for 2D mode and then measure real voltage by digital multimeter I get only 1.3V! In other words, advanced user can correct values of Vgpu with measured values. In real this feature CAN’T increase/decrease Vgpu values!!!
VID is made changeable, because different videocards have different power supply system of GPU (Vgpu and corresponding VID values).
For example, if advanced user wants to flash BIOS from 6800GT in his 6800NU, he should correct some of possible Vgpu and VID values in VT previously. That’s because BIOS of 6800NU has growth-sorted values of Vgpu and VID, but BIOS of 6800GT has growth-sorted values of Vgpu only.
Performance Table section provides modification of next parameters:
Number Of Performance Levels describes how many performance levels are in Performance Table (PT). Using this parameter user can configure the number of possible Fgpu values and correspond it with Vgpu and Ffan values. For example, PT of 6800NU consists of only 1 entry (Fgpu = 325MHz, Vgpu = 1.2V, Ffan = 40%) by default. But user wants to extend PT, he should add 2nd only or 2nd and 3rd performance levels. As a result PT will consist of 2 or 3 entries (as you can see on picture below)! Also user can decrease number of PT levels, but I think there is no any reason to do that. J
Fgpu is the frequency of GPU for defined mode (2D, LP3D, 3D). The values of this parameter always must be growth-sorted and this growth-sorting protection is released in this tool. It means that Fgpu2D <= FgpuLP3D <= Fgpu3D.
Vgpu is the value of GPU voltage for defined mode (2D, LP3D, 3D). Growth-sorting protection is spread on this parameter also.
Ffan is the value of GPU’s cooler fan frequency (in percents). Growth-sorting protection is spread on this parameter also.
Fmem is the DDR frequency of videocard’s memory. (This value must be always the same for each mode (2D, LP3D, 3D) due to protection of ForceWare driver v.6x.xx!)
If the user has made some changes, but he wants to get default data, he should just press “Load Defaults” button. But if he pressed “Apply Changes” the default data become applied. But even in this case user can return default data by reopening file with BIOS image.
After making changes user should apply them by pressing “Apply Changes” button. And only then modified BIOS maybe saved in file.
NBM v.1.1 supports Drag-n-Drop technology. It means that user can drag and then drop BIOS image file on tool’s window. Also if user registers .rom-file in Windows once, then to open BIOS image he should just double-click on one of them. In this case, NBM will be opened with selected file immediately.
If you don't know what you are doing, then steer away from this tool.
